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28 results on '"Trinczek, Michael"'

3. PIF & NIF: The Proton and Neutron Irradiation Facilities at TRIUMF.

Author

Bélanger-Champagne, Camille, Blackmore, Ewart, Hands, Alex, Hoehr, Cornelia, and Trinczek, Michael

Subjects
SPACE sciences, APPLIED sciences, NEUTRON temperature, PARTICLE accelerators, SINGLE event effects, PROTON beams, IRRADIATION
Abstract

The article discusses the impact of radiation on electronic components and the importance of testing for radiation effects. It highlights the use of proton and neutron beams at TRIUMF in Canada for testing electronic components in intense radiation environments. The facility has been instrumental in advancing research on single event effects (SEEs) and has contributed to the success of Canadian companies in the space sector. Additionally, TRIUMF is exploring new developments in testing for extreme space weather events to ensure the reliability of electronic applications critical to modern society. [Extracted from the article]

Published
2024
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7. Organic Scintillator-Fibre Sensors for Proton Therapy Dosimetry: SCSF-3HF and EJ-260

Author

Penner, Crystal (author), Usherovich, Samuel (author), Niedermeier, Jana (author), Belanger-Champagne, Camille (author), Trinczek, Michael (author), Paulssen, E. (author), Hoehr, Cornelia (author), Penner, Crystal (author), Usherovich, Samuel (author), Niedermeier, Jana (author), Belanger-Champagne, Camille (author), Trinczek, Michael (author), Paulssen, E. (author), and Hoehr, Cornelia (author)

Abstract

In proton therapy, the dose from secondary neutrons to the patient can contribute to side effects and the creation of secondary cancer. A simple and fast detection system to distinguish between dose from protons and neutrons both in pretreatment verification as well as potentially in vivo monitoring is needed to minimize dose from secondary neutrons. Two 3 mm long, 1 mm diameter organic scintillators were tested for candidacy to be used in a proton–neutron discrimination detector. The SCSF-3HF (1500) scintillating fibre (Kuraray Co. Chiyoda-ku, Tokyo, Japan) and EJ-260 plastic scintillator (Eljen Technology, Sweetwater, TX, USA) were irradiated at the TRIUMF Neutron Facility and the Proton Therapy Research Centre. In the proton beam, we compared the raw Bragg peak and spread-out Bragg peak response to the industry standard Markus chamber detector. Both scintillator sensors exhibited quenching at high LET in the Bragg peak, presenting a peak-to-entrance ratio of 2.59 for the EJ-260 and 2.63 for the SCSF-3HF fibre, compared to 3.70 for the Markus chamber. The SCSF-3HF sensor demonstrated 1.3 times the sensitivity to protons and 3 times the sensitivity to neutrons as compared to the EJ-260 sensor. Combined with our equations relating neutron and proton contributions to dose during proton irradiations, and the application of Birks’ quenching correction, these fibres provide valid candidates for inexpensive and replicable proton-neutron discrimination detectors., RST/Applied Radiation & Isotopes

Published
2023
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11. Proton Beam Profile Monitoring with Silica-based Optical Materials

Author

Vidalot, Jeoffray, Morana, Adriana, Duhamel, Olivier, Hoehr, Cornelia, El Hamzaoui, Hicham, Boukenter, Aziz, Bouwmans, Géraud, Capoen, Bruno, Trinczek, Michael, Ouerdane, Y., Paillet, Philippe, Gaillardin, Marc, Bouazaoui, Mohamed, Girard, Sylvain, Laboratoire Hubert Curien (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), CEA (CEA/DAM), TRIUMF [Vancouver], Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire Hubert Curien [Saint Etienne] (LHC), and Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2020

12. Atmospheric Neutron Monitoring through Optical Fiber-Based Sensing

Author

Girard, Sylvain, primary, Morana, Adriana, additional, Hoehr, Cornelia, additional, Trinczek, Michael, additional, Vidalot, Jeoffray, additional, Paillet, Philippe, additional, Bélanger-Champagne, Camille, additional, Mekki, Julien, additional, Balcon, Nicolas, additional, Li Vecchi, Gaetano, additional, Campanella, Cosimo, additional, Lambert, Damien, additional, Marin, Emmanuel, additional, Boukenter, Aziz, additional, Ouerdane, Youcef, additional, and Blackmore, Ewart, additional

Published
2020
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14. Limits on Heavy Neutrino Mixing from the Beta Decay of ³⁸mK Confined in a Magneto-Optical Trap

Author

Trinczek, Michael C.

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract

This thesis details the search for mixing between electron neutrinos and possible heavy neutrinos using the positron decay of ³⁸mK produced at ISAC, TRIUMF's new radioactive beam facility. Using the novel technique of laser atom trapping to confine ³⁸mK, direct limits on such mixing in β-decay are determined for the mass range of 0.7 MeV/c² to 3.8 MeV/c². The results, for part of this mass range, provide the best direct limits for the mixing of heavy neutrinos with the electron neutrino in the literature to date. The Standard Model of electroweak physics has been able to describe a wide range of experimental results, but an unresolved question arises in accounting for lepton masses. The charged leptons (electrons, muons and taus) have masses which vary enormously from one to another (me = 0.511 MeV/c², mμ = 106 MeV/c², mτ = 1777 MeV/c²), while their accompanying neutrinos appear to have no (or very little) mass. If neutrinos have finite mass, then mixing could occur among the different neutrino species. Thus, evidence of mixing would indicate the existence of non-zero neutrino mass and of the need to modify or extend the Standard Model. Consequently, this is a highly active field of physics. Evidence of possible neutrino mass and oscillation has been recently observed by the detection of energetic neutrinos from the atmosphere. The TRINAT collaboration at TRIUMF has searched for evidence of physics beyond the Standard Model using a radioactive source of ³⁸mK atoms held in a neutral atom trap. The trap provides a source of several thousand atoms confined to a volume of less than a cubic millimeter, suspended in a vacuum vessel, in which the ³⁸mK undergoes radioactive decay with the emission of a positron and a neutrino. This results in the creation of a daughter nucleus, ³⁸Ar, with momentum equal to the vector sum of the momenta of the positron and the neutrino. The unperturbed nucleus then recoils from the trap and is detected in coincidence with the positron. Through the measurement of the positron's direction and energy along with the nucleus' direction and time of flight, the neutrino momentum is deduced. The emission of a heavy neutrino would change the momentum distribution of the system and thus alter the time of flight of the recoiling nucleus as a function of positron energy. The technique permits the reconstruction of the data event-by-event, which results in an increase in both the mass range and sensitivity of the search for the possible emission of heavy neutrinos. The data were reconstructed for the recoiling nucleus' time of flight and compared to detailed Monte Carlo simulations of the TRINAT detection system. A 2-dimensional maximum likelihood search in recoil time of flight and positron energy was used to place limits on the fraction of decays involving the emission of a heavy neutrino as a function of the mass of that neutrino.

Published
2019
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17. X-Ray, Proton, and Electron Radiation Effects on Type I Fiber Bragg Gratings

Author

Blanchet, Thomas, primary, Morana, Adriana, additional, Allanche, Timothe, additional, Sabatier, Camille, additional, Reghioua, Imene, additional, Marin, Emmanuel, additional, Boukenter, Aziz, additional, Ouerdane, Youcef, additional, Paillet, Philippe, additional, Gaillardin, Marc, additional, Duhamel, Olivier, additional, Marcandella, Claude, additional, Trinczek, Michael C., additional, Assaillit, Gilles, additional, Auriel, Gerard, additional, Aubert, Damien, additional, Laffont, Guillaume, additional, and Girard, Sylvain, additional

Published
2018
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19. GaAs Displacement Damage Dosimeter Based on Diode Dark Currents

Author

Warner, Jeffrey H., primary, Messenger, Scott R., additional, Cress, Cory D., additional, Walters, Robert J., additional, Roche, Nicolas J.-H., additional, Clark, Kenneth A., additional, Bennett, Mitchell F., additional, Blackmore, Ewart W., additional, and Trinczek, Michael, additional

Published
2015
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21. SEL Cross Section Energy Dependence Impact on the High Energy Accelerator Failure Rate

Author

Alia, Ruben Garcia, primary, Blackmore, Ewart W., additional, Brugger, Markus, additional, Danzeca, Salvatore, additional, Ferlet-Cavrois, Veronique, additional, Gaillard, Remi, additional, Mekki, Julien, additional, Poivey, Christian, additional, Roed, Ketil, additional, Saigne, Frederic, additional, Spiezia, Giovanni, additional, Trinczek, Michael, additional, Uznanski, Slawosz, additional, and Wrobel, Frederic, additional

Published
2014
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23. Proton-Induced Transient Charge Collection in GaAs and InAlSb/InAs-Based FETs

Author

Warner, Jeffrey H., primary, McMorrow, Dale, additional, Buchner, Stephen, additional, Boos, J. Brad, additional, Roche, Nicolas, additional, Paillet, Philippe, additional, Gaillardin, Marc, additional, Blackmore, Ewart, additional, Trinczek, Michael, additional, Ramachandran, Vishwa, additional, Reed, Robert A., additional, and Schrimpf, Ronald D., additional

Published
2013
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25. Muon-Induced Single Event Upsets in Deep-Submicron Technology

Author

Sierawski, Brian D., primary, Mendenhall, Marcus H., additional, Reed, Robert A., additional, Clemens, Michael A., additional, Weller, Robert A., additional, Schrimpf, Ronald D., additional, Blackmore, Ewart W., additional, Trinczek, Michael, additional, Hitti, Bassam, additional, Pellish, Jonathan A., additional, Baumann, Robert C., additional, Wen, Shi-Jie, additional, Wong, Rick, additional, and Tam, Nelson, additional

Published
2010
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28. Assessment of the production of medical isotopes using the Monte Carlo code FLUKA: Simulations against experimental measurements

Author

Cornelia Hoehr, Angelo Infantino, Paul Schaffer, Domiziano Mostacci, Michael Trinczek, Elisabeth Oehlke, Infantino, Angelo, Oehlke, Elisabeth, Mostacci, Domiziano, Schaffer, Paul, Trinczek, Michael, and Hoehr, Cornelia

Subjects
Physics, Nuclear and High Energy Physics, Isotope, Proton, Medical cyclotron, Monte Carlo method, Cyclotron, 010403 inorganic & nuclear chemistry, 01 natural sciences, Fluence, 030218 nuclear medicine & medical imaging, 0104 chemical sciences, law.invention, Saturation yield, Nuclear physics, FLUKA, 03 medical and health sciences, 0302 clinical medicine, Positron, law, Monte carlo code, Instrumentation, Beam energy, Monte Carlo, Medical isotope
Abstract

The Monte Carlo code FLUKA is used to simulate the production of a number of positron emitting radionuclides, 18 F, 13 N, 94 Tc, 44 Sc, 68 Ga, 86 Y, 89 Zr, 52 Mn, 61 Cu and 55 Co, on a small medical cyclotron with a proton beam energy of 13 MeV. Experimental data collected at the TR13 cyclotron at TRIUMF agree within a factor of 0.6 ± 0.4 with the directly simulated data, except for the production of 55 Co, where the simulation underestimates the experiment by a factor of 3.4 ± 0.4. The experimental data also agree within a factor of 0.8 ± 0.6 with the convolution of simulated proton fluence and cross sections from literature. Overall, this confirms the applicability of FLUKA to simulate radionuclide production at 13 MeV proton beam energy.

Published
2016

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