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Performance of a large area photon detector for rare event search applications
- Publication Year :
- 2021
-
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.<br />Comment: 6 pages, 5 figures
- 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
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....24aeb93fccc9882d503eafd00b35a956