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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 orcid ; 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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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Armenian Journal of Physics
volume
3
issue
4
pages
282 - 291
publisher
National Academy of Sciences of the Republic of Armenia
ISSN
1829-1171
project
Development of Radiation Detectors and Radiation-Detection Techniques
language
English
LU publication?
yes
id
98ff7fe3-effb-4c62-bf5a-44eaaf76b717
alternative location
http://ajp.asj-oa.am/302/
date added to LUP
2019-05-17 15:01:18
date last changed
2020-05-11 10:30:05
@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.}},
  issn         = {{1829-1171}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{282--291}},
  publisher    = {{National Academy of Sciences of the Republic of Armenia}},
  series       = {{Armenian Journal of Physics}},
  title        = {{Low-Pressure MWPC System for the detection of Alpha-Particles and Fission Fragments}},
  url          = {{http://ajp.asj-oa.am/302/}},
  volume       = {{3}},
  year         = {{2010}},
}