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18 results on '"W. A. Page"'

1. Characterizing TES power noise for future single optical-phonon and infrared-photon detectors

Author

C. W. Fink, S. L. Watkins, T. Aramaki, P. L. Brink, S. Ganjam, B. A. Hines, M. E. Huber, N. A. Kurinsky, R. Mahapatra, N. Mirabolfathi, W. A. Page, R. Partridge, M. Platt, M. Pyle, B. Sadoulet, B. Serfass, and S. Zuber

Subjects
Physics, QC1-999
Abstract

In this letter, we present the performance of a 100 μm × 400 μm × 40 nm W Transition-Edge Sensor with a critical temperature of 40 mK. This device has a noise equivalent power of 1.5×10-18 W/Hz, in a bandwidth of 2.6 kHz, indicating a resolution for Dirac delta energy depositions of 40 ± 5 meV (rms). The performance demonstrated by this device is a critical step toward developing a O(100) meV threshold athermal phonon detector for low-mass dark matter searches.

Published
2020
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2. The drinking water crises of Flint and Havelock North: a failure of public health risk management

Author

S. J. McLaren, M. W. Sahli, S. Selig, S. J. Masten, and W. H. Page

Subjects
drinking water, lead, pathogens, public health crisis, treatment, water supply, Public aspects of medicine, RA1-1270
Abstract

Between 2014 and 2016, there were two severe community water system (CWS) failures in Flint, Michigan (MI), USA and Havelock North, Hawkes Bay, New Zealand. These events had profound implications for public health in their respective countries. While the nature of both crises was different, certain aspects of the failings were strikingly similar. These included: failure of authorities to protect the integrity of their source water,; ‘wait-and-see approach’ to address problems if and when they occurred,; negligent approach to regulatory oversight and responsibility,; substandard facilities and lack of knowledge and training of staff,; failure of consultants and advisory services engaged by suppliers, and; failure of government agencies to enforce regulations.; The lessons from both incidents must be learned, or similar tragic events are likely to reoccur. The six principles identified in the Government Inquiry into the Havelock North outbreak are an essential first step. The next step is to implement them throughout the drinking water sector. HIGHLIGHTS The drinking water crises in Flint, MI and Havelock North, NZ are compared.; The failings in these crises were found to be strikingly similar.; The crises in both locations involved a disregard for public health.; The six principles laid out in the Government Inquiry into Havelock North incident can be broadly applied worldwide to protect human health.;

Published
2022
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4. Performance of a large area photon detector for rare event search applications

Author

W. A. Page, N. Mirabolfathi, S. Zuber, R. Partridge, Bernard Sadoulet, Yu. G. Kolomensky, X. Defay, P. L. Brink, S. Ganjam, C. W. Fink, Tsuguo Aramaki, R. Mahapatra, Matt Pyle, M. Platt, Bruno Serfass, J. Camilleri, S. L. Watkins, and Physics

Subjects
010302 applied physics, Physics, Photon, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Phonon, Physics::Instrumentation and Detectors, Detector, FOS: Physical sciences, Photodetector, Instrumentation and Detectors (physics.ins-det), 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Collimated light, Particle identification, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Double beta decay, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, 0210 nano-technology, Noise-equivalent power
Abstract

We present the design and characterization of a large-area Cryogenic PhotoDetector (CPD) designed for active particle identification in rare event searches, such as neutrinoless double beta decay and dark matter experiments. The detector consists of a $45.6$ $\mathrm{cm}^2$ surface area by 1-mm-thick $10.6$ $\mathrm{g}$ Si wafer. It is instrumented with a distributed network of Quasiparticle-trap-assisted Electrothermal feedback Transition-edge sensors (QETs) with superconducting critical temperature $T_c=41.5$ $\mathrm{mK}$ to measure athermal phonons released from interactions with photons. The detector is characterized and calibrated with a collimated $^{55}$Fe X-ray source incident on the center of the detector. The noise equivalent power is measured to be $1\times 10^{-17}$ $\mathrm{W}/\sqrt{\mathrm{Hz}}$ in a bandwidth of $2.7$ $\mathrm{kHz}$. The baseline energy resolution is measured to be $\sigma_E = 3.86 \pm 0.04$ $(\mathrm{stat.})^{+0.23}_{-0.00}$ $(\mathrm{syst.})$ $\mathrm{eV}$ (RMS). The detector also has an expected timing resolution of $\sigma_t = 2.3$ $\mu\mathrm{s}$ for $5$ $\sigma_E$ events., Comment: 6 pages, 5 figures

Published
2021

5. Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector

Author

K. Fouts, W. Rau, D. A. Bauer, S. S. Poudel, N. Chott, M. L. di Vacri, Ruth Lawrence, Fernando Ponce, H. E. Rogers, S. Scorza, Xingbo Zhao, R. Germond, John Wilson, Bruno Serfass, M. H. Kelsey, A. N. Villano, S. M. Oser, C. Stanford, E. Lopez Asamar, A. Sattari, Matthew Fritts, A. J. Mayer, Vuk Mandic, I. J. Arnquist, B. A. Hines, N. Herbert, M. Michaud, H. R. Harris, Tarek Saab, N. Mast, P. Cushman, D. Barker, H. G. Zhang, L. Zheng, E. Zhang, Douglas Wright, Sunil Golwala, Seema Verma, M. Stein, T. Reynolds, To Chin Yu, Betty A. Young, R. A. Cameron, John L. Orrell, D. MacDonell, L. Hsu, Yu Kai Chang, S. L. Watkins, Martin E. Huber, D. Toback, Jodi Cooley, C. Cartaro, P. Pakarha, N. Mirabolfathi, Bedangadas Mohanty, Amy Roberts, A. Li, J. D. Morales Mendoza, M. A. Bowles, R. Chen, D. Jardin, D. W. P. Amaral, B. von Krosigk, A. Jastram, C. W. Fink, Matt Pyle, S. Nagorny, E. Fascione, R. Underwood, H. Coombes, T. Aralis, R. W. Schnee, D. B. MacFarlane, E. Azadbakht, T. Binder, David G. Cerdeño, Ben Loer, Blas Cabrera, R. Mahapatra, R. Calkins, J. Corbett, R. Bhattacharyya, Noah Kurinsky, E. Michielin, J. Winchell, J. K. Nelson, L. Wills, S. J. Yellin, Tsuguo Aramaki, L. V. S. Bezerra, W. A. Page, M. I. Hollister, J. Sander, D. J. Sincavage, M. Ghaith, F. De Brienne, G. Gerbier, R. Bunker, J. Street, E. Reid, Enectali Figueroa-Feliciano, R. Ren, A. Kubik, P. L. Brink, Bernard Sadoulet, A. E. Robinson, V. Iyer, R. Podviianiuk, R. Partridge, P. Lukens, M. Diamond, Ziqing Hong, M. J. Wilson, V. Novati, S. Banik, Eric W. Hoppe, H. Neog, and C. Bathurst

Subjects
Coupling constant, Physics, Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Dark matter, FOS: Physical sciences, Charge (physics), Instrumentation and Detectors (physics.ins-det), Electron, Kinetic energy, 01 natural sciences, Dark photon, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Absorption (logic), Atomic physics, 010306 general physics, Light dark matter, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

This article presents an analysis and the resulting limits on light dark matter inelastically scattering off of electrons, and on dark photon and axion-like particle absorption, using a second-generation SuperCDMS high-voltage eV-resolution detector. The 0.93 gram Si detector achieved a 3 eV phonon energy resolution; for a detector bias of 100 V, this corresponds to a charge resolution of 3% of a single electron-hole pair. The energy spectrum is reported from a blind analysis with 1.2 gram-days of exposure acquired in an above-ground laboratory. With charge carrier trapping and impact ionization effects incorporated into the dark matter signal models, the dark matter-electron cross section $\bar{\sigma}_{e}$ is constrained for dark matter masses from 0.5--$10^{4} $MeV$/c^{2}$; in the mass range from 1.2--50 eV$/c^{2}$ the dark photon kinetic mixing parameter $\varepsilon$ and the axioelectric coupling constant $g_{ae}$ are constrained. The minimum 90% confidence-level upper limits within the above mentioned mass ranges are $\bar{\sigma}_{e}\,=\,8.7\times10^{-34}$ cm$^{2}$, $\varepsilon\,=\,3.3\times10^{-14}$, and $g_{ae}\,=\,1.0\times10^{-9}$., Comment: 5 pages + title and references, 3 figures and 1 table

Published
2020

6. Constraints on dark photons and axionlike particles from the SuperCDMS Soudan experiment

Author

É. M. Michaud, R. Mahapatra, C. W. Fink, R. Underwood, R. A. Cameron, N. Herbert, John L. Orrell, N. Mirabolfathi, D. MacDonell, Ben Loer, D. A. Bauer, S. S. Poudel, C. Cartaro, W. Baker, H. R. Harris, Fernando Ponce, Bedangadas Mohanty, A. Li, Yu Kai Chang, Betty A. Young, Amy Roberts, A. Jastram, C. Stanford, D. J. Sincavage, D. Jardin, A. N. Villano, P. Lukens, M. Diamond, Matthew Fritts, Vuk Mandic, S. M. Oser, K. Fouts, L. Zheng, J. Street, M. Stein, M. I. Hollister, John Wilson, M. E. Huber, E. Azadbakht, A. Kennedy, Ziqing Hong, Xingbo Zhao, T. Reynolds, H. Coombes, F. De Brienne, G. Gerbier, D. B. MacFarlane, Emily Z. Zhang, H. E. Rogers, J. D. Morales Mendoza, L. V. S. Bezerra, Emanuele Michielin, Blas Cabrera, M. J. Wilson, Ruth Lawrence, P. Cushman, T. Binder, Bruno Serfass, S. Banik, Eric W. Hoppe, S. J. Yellin, Tsuguo Aramaki, D. H. Wright, J. Corbett, Noah Kurinsky, H. Neog, C. Bathurst, M. A. Bowles, R. Germond, W. A. Page, Matt Pyle, W. Rau, V. Iyer, R. Podviianiuk, Kartik Senapati, M. Ghaith, Sunil Golwala, S. Nagorny, B. Cornell, E. Fascione, R. Bunker, J. K. Nelson, A. Kubik, M. L. di Vacri, A. E. Robinson, I. J. Arnquist, R. W. Schnee, L. Hsu, S. Scorza, R. Partridge, Tarek Saab, N. Mast, L. Wills, R. Bhattacharyya, D. Toback, B. von Krosigk, J. Sander, Jodi Cooley, M. H. Kelsey, David G. Cerdeño, S. L. Watkins, P. Pakarha, R. Calkins, Enectali Figueroa-Feliciano, R. Ren, D. Barker, J. Winchell, T. Aralis, Bernard Sadoulet, To Chin Yu, E. Lopez Asamar, Seema Verma, Bruce A. Hines, and P. L. Brink

Subjects
Physics, Range (particle radiation), Photon, 010308 nuclear & particles physics, Dark matter, chemistry.chemical_element, Germanium, Electron, Parameter space, Kinetic energy, 01 natural sciences, Nuclear physics, chemistry, 0103 physical sciences, Particle, 010306 general physics
Abstract

We present an analysis of electron recoils in cryogenic germanium detectors operated during the SuperCDMS Soudan experiment. The data are used to set new constraints on the axioelectric coupling of axionlike particles and the kinetic mixing parameter of dark photons, assuming the respective species constitutes all of the galactic dark matter. This study covers the mass range from 40 eV/c2 to 500 keV/c2 for both candidates, excluding previously untested parameter space for masses below ∼1 keV/c2. For the kinetic mixing of dark photons, values below 10−15 are reached for particle masses around 100 eV/c2; for the axioelectric coupling of axionlike particles, values below 10−12 are reached for particles with masses in the range of a few-hundred eV/c2.

Published
2020

7. Light Dark Matter Search with a High-Resolution Athermal Phonon Detector Operated Above Ground

Author

E. Azadbakht, C. W. Fink, C. Cartaro, R. Mahapatra, M. A. Bowles, S. Banik, Eric W. Hoppe, H. Neog, R. A. Cameron, John L. Orrell, C. Bathurst, R. Calkins, D. A. Bauer, S. S. Poudel, D. MacDonell, V. Novati, M. H. Kelsey, M. Diamond, P. Cushman, P. Lukens, Yu Kai Chang, P. Pakarha, J. K. Nelson, Tarek Saab, N. Mast, L. Wills, J. Winchell, R. Partridge, L. V. S. Bezerra, Fernando Ponce, Ziqing Hong, H. G. Zhang, N. Herbert, H. R. Harris, P. L. Brink, D. W. P. Amaral, L. Zheng, M. J. Wilson, D. J. Sincavage, W. A. Page, Bernard Sadoulet, M. Chaudhuri, Blas Cabrera, J. Street, Martin E. Huber, A. E. Robinson, E. Lopez Asamar, N. Mirabolfathi, É. M. Michaud, Bedangadas Mohanty, A. J. Mayer, A. Li, H. Coombes, Noah Kurinsky, I. J. Arnquist, L. Hsu, J. Sander, T. C. Yu, Sunil Golwala, K. Fouts, A. Jastram, J. D. Morales Mendoza, R. W. Schnee, M. Ghaith, Amy Roberts, D. Toback, Ruth Lawrence, T. Binder, Bruno Serfass, A. Kubik, Matt Pyle, T. Aralis, J. Corbett, J. Camilleri, D. Jardin, Matthew Fritts, H. Meyer Zu Theenhausen, V. K. S. Kashyap, C. Stanford, M. I. Hollister, R. Bhattacharyya, Vuk Mandic, E. Michielin, D. H. Wright, A. Sattari, E. Reid, S. J. Yellin, Tsuguo Aramaki, Enectali Figueroa-Feliciano, R. Ren, F. De Brienne, G. Gerbier, R. Germond, I. Alkhatib, B. A. Hines, S. Zuber, Betty A. Young, Seema Verma, B. von Krosigk, Yu. G. Kolomensky, S. L. Watkins, S. Nagorny, E. Fascione, John Wilson, D. B. MacFarlane, David G. Cerdeño, R. Bunker, Emily Z. Zhang, V. Iyer, R. Chen, R. Podviianiuk, R. Underwood, Ben Loer, Jodi Cooley, A. N. Villano, S. M. Oser, Xingbo Zhao, T. Reynolds, I. Ataee Langroudy, D. Barker, M. L. di Vacri, S. Scorza, W. Rau, N. Chott, and UAM. Departamento de Física Teórica

Subjects
Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Above Grounds, Phonon, Dark matter, General Physics and Astronomy, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Cryogenic Detectors, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Light Dark Matter, Scattering Cross Section, 0103 physical sciences, Energy Resolutions, Dark Matter Searches, 010306 general physics, Light dark matter, Physics, Dark Matter Particles, 010308 nuclear & particles physics, Scattering, Detector, Resolution (electron density), Física, Instrumentation and Detectors (physics.ins-det), Particle, High Energy Physics::Experiment, Energy (signal processing), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present limits on spin-independent dark matter-nucleon interactions using a $10.6$ $\mathrm{g}$ Si athermal phonon detector with a baseline energy resolution of $\sigma_E=3.86 \pm 0.04$ $(\mathrm{stat.})^{+0.19}_{-0.00}$ $(\mathrm{syst.})$ $\mathrm{eV}$. This exclusion analysis sets the most stringent dark matter-nucleon scattering cross-section limits achieved by a cryogenic detector for dark matter particle masses from $93$ to $140$ $\mathrm{MeV}/c^2$, with a raw exposure of $9.9$ $\mathrm{g}\cdot\mathrm{d}$ acquired at an above-ground facility. This work illustrates the scientific potential of detectors with athermal phonon sensors with eV-scale energy resolution for future dark matter searches., Comment: 7 pages, 4 figures, this version includes ancillary files from official data release

Published
2020
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8. Modeling of Impact Ionization and Charge Trapping in SuperCDMS HVeV Detectors

Author

C. W. Fink, Matt Pyle, S. J. Yellin, W. A. Page, Fernando Ponce, R. Partridge, M. Cherry, B. Serfass, P. L. Brink, S. L. Watkins, Betty A. Young, C. Stanford, Bernard Sadoulet, Blas Cabrera, and Noah Kurinsky

Subjects
Physics, Physics - Instrumentation and Detectors, Phonon, Dark matter, Detector, FOS: Physical sciences, Trapping, Electron, Instrumentation and Detectors (physics.ins-det), Condensed Matter Physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, 010305 fluids & plasmas, Nuclear physics, Impact ionization, 0103 physical sciences, General Materials Science, Surface charge, Physics::Atomic Physics, 010306 general physics, Leakage (electronics)
Abstract

A model for charge trapping and impact ionization and an experiment to measure these parameters are presented for the SuperCDMS HVeV detector. A procedure to isolate and quantify the main sources of noise (bulk and surface charge leakage) in the measurements is also described. This sets the stage to precisely measure the charge trapping and impact ionization probabilities in order to incorporate this model into future dark matter searches.

Published
2019

9. Erratum: First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector [Phys. Rev. Lett. 121 , 051301 (2018)]

Author

Betty A. Young, C. Cartaro, A. Kennedy, A. Phipps, Blas Cabrera, Chitrasen Jena, E. Fascione, D. H. Wright, Jodi Cooley, J. V. Leyva, Noah Kurinsky, R. Mahapatra, M. H. Kelsey, W. Rau, T. Binder, C. Stanford, Xingbo Zhao, E. Azadbakht, S. Scorza, E. H. Miller, P. L. Brink, Danielle Speller, J. Street, Amy Roberts, S. J. Yellin, Tsuguo Aramaki, P. Di Stefano, A. N. Villano, Matthew Fritts, S. M. Oser, R. Calkins, B. von Krosigk, Vuk Mandic, H. E. Rogers, R. Agnese, H. R. Harris, M. A. Bowles, T. Reynolds, H. Qiu, A. E. Robinson, V. Iyer, P. Lukens, W. A. Page, C. W. Fink, J. Sander, M. Stein, Martin E. Huber, Bruno Serfass, S. L. Watkins, John Wilson, D. Barker, I. J. Arnquist, D. Jardin, D. A. Bauer, S. Banik, Eric W. Hoppe, J. K. Nelson, S. S. Poudel, W. Baker, B. Cornell, T. Doughty, Fernando Ponce, A. Reisetter, L. Hsu, Ziqing Hong, J. D. Morales Mendoza, John L. Orrell, J. So, X. Zhang, N. Mirabolfathi, D. MacDonell, R. Underwood, Bedangadas Mohanty, A. Scarff, D. Toback, Tarek Saab, N. Mast, G. Gerbier, M. J. Wilson, Ben Loer, Hiromasa Tanaka, R. K. Romani, M. Pepin, David G. Cerdeño, T. Aralis, Matt Pyle, M. Ghaith, A. Kubik, Kartik Senapati, R. Partridge, Sunil Golwala, Yen-Yung Chang, J. Winchell, Bernard Sadoulet, Enectali Figueroa-Feliciano, E. Lopez Asamar, Ruth Lawrence, R. Germond, R. Bunker, R. W. Schnee, and P. Cushman

Subjects
Nuclear physics, Physics, Detector, Dark matter, General Physics and Astronomy, Charge (physics)
Abstract

This corrects the article DOI: 10.1103/PhysRevLett.121.051301.

Published
2019

10. Measuring the Impact Ionization and Charge Trapping Probabilities in SuperCDMS HVeV Phonon Sensing Detectors

Author

M. Cherry, W. A. Page, R. Partridge, S. J. Yellin, C. W. Fink, B. Cabrera, Matt Pyle, Noah Kurinsky, Betty A. Young, C. Stanford, Bruno Serfass, P. L. Brink, Fernando Ponce, S. L. Watkins, and Bernard Sadoulet

Subjects
Physics, Photon, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Phonon, FOS: Physical sciences, Charge (physics), Electron, Trapping, Instrumentation and Detectors (physics.ins-det), Type (model theory), 01 natural sciences, Impact ionization, 0103 physical sciences, Charge carrier, Atomic physics, 010306 general physics
Abstract

A 0.93 gram $1{\times}1{\times}0.4$ cm$^3$ SuperCDMS silicon HVeV detector operated at 30 mK was illuminated by 1.91 eV photons using a room temperature pulsed laser coupled to the cryostat via fiber optic. The detector's response under a variety of specific operating conditions was used to study the detector leakage current, charge trapping and impact ionization in the high-purity Si substrate. The measured probabilities for a charge carrier in the detector to undergo charge trapping (0.713 $\pm$ 0.093%) or cause impact ionization (1.576 $\pm$ 0.110%) were found to be nearly independent of bias polarity and charge-carrier type (electron or hole) for substrate biases of $\pm$ 140 V., Comment: 4 pages, 4 figures

Published
2019
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11. Nuclear-recoil energy scale in CDMS II silicon dark-matter detectors

Author

X. Zhao, T. Binder, G.L. Godfrey, J. D. Morales Mendoza, R. Underwood, Martin E. Huber, Tarek Saab, K. Schneck, N. Mast, E. H. Miller, M. Pepin, R. Germond, Yi Chen, B. Welliver, J. Hall, A. W. Borgland, H. R. Harris, W. A. Page, Amy Roberts, Yu Kai Chang, S. Fallows, A. N. Villano, Betty A. Young, M. Ghaith, A. Kubik, R. W. Schnee, V. Iyer, S. M. Oser, R. Basu Thakur, Miguel Daal, H. A. Tanaka, S. J. Yellin, Tsuguo Aramaki, A. Phipps, Hassan Chagani, David G. Cerdeño, K. L. Page, T. Doughty, P. Lukens, S. Banik, R. Partridge, Robert A. Moffatt, Kevin A. McCarthy, John Wilson, B. Cornell, R. Calkins, E. Fascione, Sunil Golwala, P. Redl, Ziqing Hong, P. L. Brink, M. Stein, David Moore, M. Peñalver Martinez, Adam Anderson, M. J. Wilson, E. M. Dragowsky, J. K. Nelson, Donald J. Holmgren, C. Cartaro, W. Rau, David O. Caldwell, H. E. Rogers, M. A. Bowles, P. Cushman, J. Sander, S. Scorza, Danielle Speller, H. Qiu, P. Di Stefano, R. Agnese, J. Street, D. Balakishiyeva, L. Hsu, D. Toback, Matt Pyle, Bruno Serfass, Kartik Senapati, D. Jardin, R. Mahapatra, A. Leder, R. Bunker, A. Reisetter, D. MacDonell, C. Jena, G. Gerbier, L. Esteban, D. Barker, Jodi Cooley, M. H. Kelsey, D. A. Bauer, S. S. Poudel, W. Baker, J. J. Yen, Matthew Fritts, Vuk Mandic, X. Zhang, N. Mirabolfathi, Bedangadas Mohanty, A. Jastram, A. Kennedy, Blas Cabrera, Enectali Figueroa-Feliciano, E. Lopez Asamar, Noah Kurinsky, B. von Krosigk, Bernard Sadoulet, A. E. Robinson, and Douglas Wright

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, Electron, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Recoil, Ionization, 0103 physical sciences, Neutron, Physics::Atomic Physics, 010306 general physics, Nuclear Experiment, Instrumentation and Methods for Astrophysics (astro-ph.IM), Instrumentation, Physics, Elastic scattering, 010308 nuclear & particles physics, Instrumentation and Detectors (physics.ins-det), 3. Good health, Semiconductor detector, Cryogenic Dark Matter Search, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Cryogenic Dark Matter Search (CDMS II) experiment aims to detect dark matter particles that elastically scatter from nuclei in semiconductor detectors. The resulting nuclear-recoil energy depositions are detected by ionization and phonon sensors. Neutrons produce a similar spectrum of low-energy nuclear recoils in such detectors, while most other backgrounds produce electron recoils. The absolute energy scale for nuclear recoils is necessary to interpret results correctly. The energy scale can be determined in CDMS II silicon detectors using neutrons incident from a broad-spectrum $^{252}$Cf source, taking advantage of a prominent resonance in the neutron elastic scattering cross section of silicon at a recoil (neutron) energy near 20 (182) keV. Results indicate that the phonon collection efficiency for nuclear recoils is $4.8^{+0.7}_{-0.9}$% lower than for electron recoils of the same energy. Comparisons of the ionization signals for nuclear recoils to those measured previously by other groups at higher electric fields indicate that the ionization collection efficiency for CDMS II silicon detectors operated at $\sim$4 V/cm is consistent with 100% for nuclear recoils below 20 keV and gradually decreases for larger energies to $\sim$75% at 100 keV. The impact of these measurements on previously published CDMS II silicon results is small., Comment: 22 pages, 17 figures, 1 table, 1 appendix

Published
2018

12. Characterizing TES power noise for future single optical-phonon and infrared-photon detectors

Author

W. A. Page, R. Mahapatra, R. Partridge, B. Serfass, B. A. Hines, P. L. Brink, S. Zuber, C. W. Fink, Bernard Sadoulet, S. Ganjam, Noah Kurinsky, Martin E. Huber, Tsuguo Aramaki, Matt Pyle, S. L. Watkins, N. Mirabolfathi, and M. Platt

Subjects
Physics - Instrumentation and Detectors, Infrared, Phonon, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Dirac delta function, 02 engineering and technology, 01 natural sciences, symbols.namesake, Power noise, 0103 physical sciences, Noise-equivalent power, 010302 applied physics, Physics, business.industry, Bandwidth (signal processing), Detector, Instrumentation and Detectors (physics.ins-det), 021001 nanoscience & nanotechnology, lcsh:QC1-999, symbols, Optoelectronics, 0210 nano-technology, business, lcsh:Physics
Abstract

In this letter, we present the performance of a $100~\mu\mathrm{m}\times 400~\mu\mathrm{m} \times 40~\mathrm{nm}$ tungsten (W) Transition-Edge Sensor (TES) with a critical temperature of 40 mK. This device has a measured noise equivalent power (NEP) of $1.5\times 10^{-18}\ \mathrm{W}/\sqrt{\mathrm{Hz}}$, in a bandwidth of $2.6$ kHz, indicating a resolution for Dirac delta energy depositions of $40\pm 5~\mathrm{meV}$ (rms). The performance demonstrated by this device is a critical step towards developing a $\mathcal{O}(100)~\mathrm{meV}$ threshold athermal phonon detectors for low-mass dark matter searches., Comment: 5 pages, 6 figures. Accepted for publication at AIP Advances

Published
2020

13. Production Rate Measurement of Tritium and Other Cosmogenic Isotopes in Germanium with CDMSlite

Author

H. R. Harris, B. Loer, B. Serfass, W. A. Page, S. Scorza, E. Azadbakht, David G. Cerdeño, John L. Orrell, D. MacDonell, C. Cartaro, M. A. Bowles, Enectali Figueroa-Feliciano, R. Calkins, R. Ren, N. Mirabolfathi, Yu Kai Chang, A. N. Villano, S. M. Oser, Jodi Cooley, John Wilson, B. von Krosigk, G. Gerbier, Xingbo Zhao, T. Reynolds, Betty A. Young, J. Winchell, S. J. Yellin, Tsuguo Aramaki, H. E. Rogers, M. Ghaith, A. Kubik, S. L. Watkins, P. Cushman, J. D. Morales Mendoza, A. Kennedy, Blas Cabrera, Chitrasen Jena, H. A. Tanaka, P. L. Brink, Bernard Sadoulet, A. Scarff, H. Qiu, A. E. Robinson, R. Partridge, Matt Pyle, E. Lopez Asamar, Noah Kurinsky, B. Cornell, R. Underwood, D. Barker, T. Aralis, Kartik Senapati, D. Jardin, R. Agnese, Danielle Speller, I. J. Arnquist, Ruth Lawrence, Tarek Saab, N. Mast, P. Lukens, L. Hsu, T. Binder, Sunil Golwala, D. Toback, M. H. Kelsey, D. H. Wright, Ziqing Hong, R. Bunker, M. Stein, C. W. Fink, M. J. Wilson, S. Banik, Eric W. Hoppe, A. Reisetter, Martin E. Huber, W. Rau, Matthew Fritts, R. Germond, Vuk Mandic, J. K. Nelson, J. Sander, R. W. Schnee, M. Pepin, X. Zhang, Bedangadas Mohanty, A. Jastram, D. A. Bauer, S. S. Poudel, W. Baker, Fernando Ponce, E. Fascione, Amy Roberts, T. Doughty, J. Street, R. Mahapatra, V. Iyer, and E. H. Miller

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Dark matter, chemistry.chemical_element, FOS: Physical sciences, Germanium, Radiation, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Ionization, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Nuclear Experiment, Physics, Radionuclide, Isotope, 010308 nuclear & particles physics, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Semiconductor detector, chemistry, Tritium, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Future direct searches for low-mass dark matter particles with germanium detectors, such as SuperCDMS SNOLAB, are expected to be limited by backgrounds from radioactive isotopes activated by cosmogenic radiation inside the germanium. There are limited experimental data available to constrain production rates and a large spread of theoretical predictions. We examine the calculation of expected production rates, and analyze data from the second run of the CDMS low ionization threshold experiment (CDMSlite) to estimate the rates for several isotopes. We model the measured CDMSlite spectrum and fit for contributions from tritium and other isotopes. Using the knowledge of the detector history, these results are converted to cosmogenic production rates at sea level. The production rates in atoms/(kg$\cdot$day) are 74$\pm$9 for $^3$H, 1.5$\pm$0.7 for $^{55}$Fe, 17$\pm$5 for $^{65}$Zn, and 30$\pm$18 for $^{68}$Ge., 14 pages, 10 figures, 5 tables. v5 contains the extended data release (and documentation) of the CDMSlite Run 2 data as ancillary files

Published
2018

14. First Dark Matter Constraints from a SuperCDMS Single-Charge Sensitive Detector

Author

C. Stanford, A. N. Villano, S. M. Oser, T. Reynolds, John L. Orrell, R. Underwood, D. MacDonell, B. Cornell, H. R. Harris, J. Street, W. A. Page, John Wilson, A. Scarff, C. Cartaro, P. L. Brink, Hiromasa Tanaka, Ruth Lawrence, E. Fascione, M. Pepin, N. Mirabolfathi, M. Ghaith, A. Kubik, D. Jardin, D. A. Bauer, J. D. Morales Mendoza, Sunil Golwala, S. S. Poudel, T. Doughty, W. Baker, Xingbo Zhao, Tarek Saab, N. Mast, S. Scorza, C. W. Fink, J. K. Nelson, R. Mahapatra, Fernando Ponce, R. Germond, R. W. Schnee, X. Zhang, M. H. Kelsey, B. Loer, B. Serfass, J. V. Leyva, M. Stein, D. Barker, Bedangadas Mohanty, J. Sander, T. Aralis, Amy Roberts, R. Agnese, Martin E. Huber, Betty A. Young, David G. Cerdeño, B. von Krosigk, E. H. Miller, P. Cushman, D. H. Wright, A. Phipps, Yu Kai Chang, R. K. Romani, Jodi Cooley, M. A. Bowles, S. Banik, Eric W. Hoppe, A. Kennedy, Matt Pyle, Blas Cabrera, Chitrasen Jena, T. Binder, S. J. Yellin, Tsuguo Aramaki, Matthew Fritts, Kartik Senapati, E. Azadbakht, Noah Kurinsky, Vuk Mandic, Enectali Figueroa-Feliciano, R. Partridge, R. Calkins, E. Lopez Asamar, V. Iyer, S. L. Watkins, J. Winchell, Bernard Sadoulet, A. E. Robinson, Danielle Speller, P. Lukens, P. Di Stefano, Ziqing Hong, M. J. Wilson, H. E. Rogers, H. Qiu, R. Bunker, A. Reisetter, W. Rau, J. So, G. Gerbier, I. J. Arnquist, L. Hsu, and D. Toback

Subjects
Physics, Photon, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, Dark matter, General Physics and Astronomy, FOS: Physical sciences, Charge (physics), Instrumentation and Detectors (physics.ins-det), Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 7. Clean energy, Dark photon, Semiconductor detector, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Excited state, 0103 physical sciences, 010306 general physics, Absorption (electromagnetic radiation), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the first limits on inelastic electron-scattering dark matter and dark photon absorption using a prototype SuperCDMS detector having a charge resolution of 0.1 electron-hole pairs (CDMS HVeV, a 0.93 gram CDMS HV device). These electron-recoil limits significantly improve experimental constraints on dark matter particles with masses as low as 1 MeV/$\mathrm{c^2}$. We demonstrate a sensitivity to dark photons competitive with other leading approaches but using substantially less exposure (0.49 gram days). These results demonstrate the scientific potential of phonon-mediated semiconductor detectors that are sensitive to single electronic excitations., 6 pages + title and references, 6 figures, includes erratum submitted to PRL and data release

Published
2018

15. Results from the Super Cryogenic Dark Matter Search Experiment at Soudan

Author

Tarek Saab, N. Mast, A. N. Villano, S. M. Oser, P. L. Brink, C. Cartaro, T. Reynolds, H. R. Harris, D. A. Bauer, W. A. Page, B. Welliver, S. S. Poudel, W. Baker, N. Mirabolfathi, Enectali Figueroa-Feliciano, R. Partridge, A. Kennedy, J. J. Yen, Jodi Cooley, Blas Cabrera, Betty A. Young, B. Cornell, Chitrasen Jena, D. H. Wright, D. Balakishiyeva, A. Phipps, S. Banik, Eric W. Hoppe, J. D. Morales Mendoza, Noah Kurinsky, Xingbo Zhao, A. E. Robinson, Yu Kai Chang, T. Binder, S. Scorza, Matthew Fritts, D. Barker, Bernard Sadoulet, Vuk Mandic, Sunil Golwala, I. J. Arnquist, G. Godfrey, Amy Roberts, P. Di Stefano, Martin E. Huber, M. H. Kelsey, S. J. Yellin, Tsuguo Aramaki, D. Jardin, John Wilson, M. Stein, D. O. Caldwell, L. Hsu, P. Cushman, E. Lopez Asamar, R. Agnese, R. Underwood, D. Toback, J. Hall, Miguel Daal, J. K. Nelson, X. Zhang, M. Peñalver Martinez, Bedangadas Mohanty, Matt Pyle, M. A. Bowles, B. von Krosigk, A. Jastram, Kartik Senapati, J. Sander, Hiromasa Tanaka, John L. Orrell, D. MacDonell, K. Schneck, E. Fascione, M. Pepin, V. Iyer, R. W. Schnee, R. Basu Thakur, K. L. Page, R. Calkins, T. Doughty, H. E. Rogers, H. Qiu, P. Redl, B. Loer, B. Serfass, E. H. Miller, R. Germond, Yi Chen, P. Lukens, Ziqing Hong, M. J. Wilson, Danielle Speller, M. Ghaith, A. Kubik, R. Mahapatra, J. Street, David G. Cerdeño, G. Gerbier, R. Bunker, A. Reisetter, and W. Rau

Subjects
Physics, Particle physics, 010308 nuclear & particles physics, Weakly interacting massive particles, 0103 physical sciences, General Physics and Astronomy, Cryogenic Dark Matter Search, 010306 general physics, 01 natural sciences, Event (particle physics)
Abstract

We report the result of a blinded search for weakly interacting massive particles (WIMPs) using the majority of the SuperCDMS Soudan data set. With an exposure of 1690 kg d, a single candidate event is observed, consistent with expected backgrounds. This analysis (combined with previous Ge results) sets an upper limit on the spin-independent WIMP–nucleon cross section of 1.4×10−44 (1.0×10−44) cm2 at 46 GeV/c2. These results set the strongest limits for WIMP–germanium-nucleus interactions for masses >12 GeV/c2.

Published
2018

16. Projected sensitivity of the SuperCDMS SNOLAB experiment

Author

Xingbo Zhao, C. Cartaro, M. A. Bowles, R. Agnese, A. N. Villano, S. M. Oser, B. Welliver, John L. Orrell, Jodi Cooley, H. R. Harris, W. A. Page, David G. Cerdeño, G. Gerbier, Tarek Saab, N. Mast, I. J. Arnquist, Sunil Golwala, M. H. Kelsey, R. Underwood, D. Jardin, John Wilson, Bernard Sadoulet, L. Hsu, Hiromasa Tanaka, P. Di Stefano, M. Pepin, E. Lopez Asamar, N. Mirabolfathi, D. Toback, P. Redl, R. Basu Thakur, K. L. Page, R. Mahapatra, A. Leder, R. Calkins, H. E. Rogers, B. Cornell, Donald J. Holmgren, H. Qiu, A. W. Borgland, J. Street, D. Barker, J. D. Morales Mendoza, Danielle Speller, R. Bunker, J. J. Yen, S. Fallows, A. Reisetter, S. J. Yellin, Tsuguo Aramaki, M. Ghaith, Matt Pyle, W. Rau, V. Iyer, T. Doughty, A. Kubik, D. A. Bauer, Amy Roberts, S. S. Poudel, Enectali Figueroa-Feliciano, W. Baker, J. Sander, L. Esteban, P. Lukens, H. Chagani, Ziqing Hong, R. Partridge, Adam Anderson, Matthew Fritts, A. E. Robinson, Vuk Mandic, Yi Chen, Betty A. Young, T. Hofer, A. Phipps, M. Stein, X. Zhang, Miguel Daal, Robert A. Moffatt, A. Jastram, P. L. Brink, David O. Caldwell, D. H. Wright, Eric W. Hoppe, A. Kennedy, Blas Cabrera, Noah Kurinsky, K. Schneck, B. von Krosigk, B. Loer, B. Serfass, R. W. Schnee, P. Cushman, G.L. Godfrey, Martin E. Huber, and J. Hall

Subjects
Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Solar neutrino, Dark matter, FOS: Physical sciences, Atomic, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, Recoil, 0103 physical sciences, Nuclear, 010306 general physics, physics.ins-det, Physics, Quantum Physics, hep-ex, 010308 nuclear & particles physics, Detector, Molecular, Instrumentation and Detectors (physics.ins-det), Nuclear & Particles Physics, Orders of magnitude (time), Weakly interacting massive particles, astro-ph.CO, High Energy Physics::Experiment, Cryogenic Dark Matter Search, Neutrino, Astronomical and Space Sciences, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

SuperCDMS SNOLAB will be a next-generation experiment aimed at directly detecting low-mass (< 10 GeV/c$^2$) particles that may constitute dark matter by using cryogenic detectors of two types (HV and iZIP) and two target materials (germanium and silicon). The experiment is being designed with an initial sensitivity to nuclear recoil cross sections ~ 1 x 10$^{-43}$ cm$^2$ for a dark matter particle mass of 1 GeV/c$^2$, and with capacity to continue exploration to both smaller masses and better sensitivities. The phonon sensitivity of the HV detectors will be sufficient to detect nuclear recoils from sub-GeV dark matter. A detailed calibration of the detector response to low energy recoils will be needed to optimize running conditions of the HV detectors and to interpret their data for dark matter searches. Low-activity shielding, and the depth of SNOLAB, will reduce most backgrounds, but cosmogenically produced $^{3}$H and naturally occurring $^{32}$Si will be present in the detectors at some level. Even if these backgrounds are x10 higher than expected, the science reach of the HV detectors would be over three orders of magnitude beyond current results for a dark matter mass of 1 GeV/c$^2$. The iZIP detectors are relatively insensitive to variations in detector response and backgrounds, and will provide better sensitivity for dark matter particle masses (> 5 GeV/c$^2$). The mix of detector types (HV and iZIP), and targets (germanium and silicon), planned for the experiment, as well as flexibility in how the detectors are operated, will allow us to maximize the low-mass reach, and understand the backgrounds that the experiment will encounter. Upgrades to the experiment, perhaps with a variety of ultra-low-background cryogenic detectors, will extend dark matter sensitivity down to the "neutrino floor", where coherent scatters of solar neutrinos become a limiting background., SuperCDMS SNOLAB Projected sensitivity reach

Published
2017

17. New Results from the Search for Low-Mass Weakly Interacting Massive Particles with the CDMS Low Ionization Threshold Experiment

Author

B. Welliver, B. Shank, Matt Pyle, J. J. Yen, D. Barker, B. Loer, J. Hall, T. Doughty, B. Serfass, G. L. Godfrey, D. Jardin, R. Agnese, R. Basu Thakur, K. L. Page, Jodi Cooley, R. Calkins, H. R. Harris, N. Mirabolfathi, W. A. Page, Yi Chen, David G. Cerdeño, T. Hofer, D. Balakishiyeva, Y. Ricci, L. Esteban, R. Bunker, J. Zhang, J. D. Morales Mendoza, A. Jastram, M. Asai, A. Reisetter, Miguel Daal, S. Fallows, W. Rau, H. E. Rogers, P. Redl, Sunil Golwala, A. Kennedy, Martin E. Huber, D. A. Bauer, S. J. Yellin, Tsuguo Aramaki, H. Qiu, W. Baker, John Wilson, Blas Cabrera, Tarek Saab, N. Mast, Bernard Sadoulet, Robert A. Moffatt, E. Lopez Asamar, Amy Roberts, A. Borgland, Vuk Mandic, O. Kamaev, K. Prasad, A. Leder, B. Cornell, S. Upadhyayula, R. Underwood, J. Billard, M. Pepin, R. Partridge, Enectali Figueroa-Feliciano, R. W. Schnee, P. Cushman, M. H. Kelsey, Betty A. Young, A. Phipps, J. Sander, L. Hsu, D. Toback, M. Ghaith, P. Lukens, B. Kara, Adam Anderson, R. Mahapatra, H. Chagani, Donald J. Holmgren, Danielle Speller, M. A. Bowles, K. Schneck, D. H. Wright, P. L. Brink, David O. Caldwell, A. N. Villano, S. M. Oser, S. Scorza, and P. Di Stefano

Subjects
Physics, Particle physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Phonon, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Electron, Parameter space, 01 natural sciences, Semiconductor detector, Nuclear physics, WIMP, Weakly interacting massive particles, Ionization, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Low Mass
Abstract

© 2016 American Physical Society. The CDMS low ionization threshold experiment (CDMSlite) uses cryogenic germanium detectors operated at a relatively high bias voltage to amplify the phonon signal in the search for weakly interacting massive particles (WIMPs). Results are presented from the second CDMSlite run with an exposure of 70 kg day, which reached an energy threshold for electron recoils as low as 56 eV. A fiducialization cut reduces backgrounds below those previously reported by CDMSlite. New parameter space for the WIMP-nucleon spin-independent cross section is excluded for WIMP masses between 1.6 and 5.5 GeV/c2.

Published
2016

18. Earthquake Hazard Uncertainties Improved Using Precariously Balanced Rocks

Author

A. H. Rood, D. H. Rood, M. W. Stirling, C. M. Madugo, N. A. Abrahamson, K. M. Wilcken, T. Gonzalez, A. Kottke, A. C. Whittaker, W. D. Page, and P. J. Stafford

Subjects
earthquakes, seismic hazard, geomorphology, cosmogenic radionuclides, Geology, QE1-996.5, Geophysics. Cosmic physics, QC801-809
Abstract

Abstract Probabilistic seismic hazard analysis (PSHA) is the state‐of‐the‐art method to estimate ground motions exceeded by large, infrequent, and potentially damaging earthquakes; however, a fundamental problem is the lack of an accepted method for both quantitatively validating and refining the hazard estimates using empirical geological data. In this study, to reduce uncertainties in such hazard estimates, we present a new method that uses empirical data from precariously balanced rocks (PBRs) in coastal Central California. We calculate the probability of toppling of each PBR at defined ground‐motion levels and determine the age at which the PBRs obtained their current fragile geometries using a novel implementation of cosmogenic 10Be exposure dating. By eliminating the PSHA estimates inconsistent with at least a 5% probability of PBR survival, the mean ground‐motion estimate corresponding to the hazard level of 10−4 yr−1 (10,000 yr mean return period) is significantly reduced by 27%, and the range of estimated 5th–95th fractile ground motions is reduced by 49%. Such significant reductions in uncertainties make it possible to more reliably assess the safety and security of critical infrastructure in earthquake‐prone regions worldwide.

Published
2020
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