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Low-Pressure MWPC System for the detection of Alpha-Particles and Fission Fragments

Margaryan, Ashot; Adler, Jan-Olof LU ; Brudvik, Jason LU ; Grigoryan, N.; Fissum, Kevin LU ; Hansen, Kurt LU ; Isaksson, Lennart LU ; Knyazyan, S.; Lundin, Magnus LU and Marikyan, G., et al. (2010) In Armenian Journal of Physics 3(4). p.282-291
Abstract
A low-pressure, position-sensitive, multi-wire proportional chamber (LPMWPC) system with an active area 12×12 cm 2 for the detection of heavy nuclear fragments, has been developed for use in tagged photon beam experiments. The LPMWPC system can be operated in single as well as double step operational modes. In the case of double step operational mode with a high gas amplification factor, signals from α-particles reside well above the electronic noise. Typical energy loss spectra of alpha particles and fission fragments (FF) obtained from a 252 Cf source are shown and discussed. The pulse height distributions of α-particles have a Landau distribution shape, while the pulse height distribution of FFs differs from Gaussian shape. It has long... (More)
A low-pressure, position-sensitive, multi-wire proportional chamber (LPMWPC) system with an active area 12×12 cm 2 for the detection of heavy nuclear fragments, has been developed for use in tagged photon beam experiments. The LPMWPC system can be operated in single as well as double step operational modes. In the case of double step operational mode with a high gas amplification factor, signals from α-particles reside well above the electronic noise. Typical energy loss spectra of alpha particles and fission fragments (FF) obtained from a 252 Cf source are shown and discussed. The pulse height distributions of α-particles have a Landau distribution shape, while the pulse height distribution of FFs differs from Gaussian shape. It has long tails at both low-and high-energy sides. The average pulse height ratio of alpha particles and FF's is close to the theoretical value and amounts to about 1/80. (Less)
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Armenian Journal of Physics
volume
3
issue
4
pages
282 - 291
language
English
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yes
id
98ff7fe3-effb-4c62-bf5a-44eaaf76b717
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http://ajp.asj-oa.am/302/
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2019-05-17 15:01:18
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2019-08-14 02:19:15
@article{98ff7fe3-effb-4c62-bf5a-44eaaf76b717,
  abstract     = {A low-pressure, position-sensitive, multi-wire proportional chamber (LPMWPC) system with an active area 12×12 cm 2 for the detection of heavy nuclear fragments, has been developed for use in tagged photon beam experiments. The LPMWPC system can be operated in single as well as double step operational modes. In the case of double step operational mode with a high gas amplification factor, signals from α-particles reside well above the electronic noise. Typical energy loss spectra of alpha particles and fission fragments (FF) obtained from a 252 Cf source are shown and discussed. The pulse height distributions of α-particles have a Landau distribution shape, while the pulse height distribution of FFs differs from Gaussian shape. It has long tails at both low-and high-energy sides. The average pulse height ratio of alpha particles and FF's is close to the theoretical value and amounts to about 1/80.},
  author       = {Margaryan, Ashot and Adler, Jan-Olof and Brudvik, Jason and Grigoryan, N. and Fissum, Kevin and Hansen, Kurt and Isaksson, Lennart and Knyazyan, S. and Lundin, Magnus and Marikyan, G. and Nilsson, Björn and Parlakyan, L. and Schröder, Bent and Vardanyan, H. and Zhamkochyan, S.},
  language     = {eng},
  number       = {4},
  pages        = {282--291},
  series       = {Armenian Journal of Physics},
  title        = {Low-Pressure MWPC System for the detection of Alpha-Particles and Fission Fragments},
  volume       = {3},
  year         = {2010},
}