Applicability of Parallel Plate Avalanche Counters to Spontaneous Fission from Cf-252
(2012) In International Journal of Modern Physics E 21(4).- Abstract
- The construction and performance of the parallel plate avalanche counters (PPACs) using a spontaneous fission source Cf-252 is described in this paper. The parallel plate circular electrodes are made of aluminum foils having a thickness less than ten microns. After fabrication, the detectors and the source are mounted inside a reaction chamber, the source between the two detectors. A low pressure is created inside the chamber using isobutane (C4H10) and a high voltage is applied to the electrodes. The detectors are first operated at different pressures and voltages to find the optimum values of the pressure and the voltage. This is necessary to avoid the sparking threshold, to achieve a good time resolution and to keep the gain of the... (More)
- The construction and performance of the parallel plate avalanche counters (PPACs) using a spontaneous fission source Cf-252 is described in this paper. The parallel plate circular electrodes are made of aluminum foils having a thickness less than ten microns. After fabrication, the detectors and the source are mounted inside a reaction chamber, the source between the two detectors. A low pressure is created inside the chamber using isobutane (C4H10) and a high voltage is applied to the electrodes. The detectors are first operated at different pressures and voltages to find the optimum values of the pressure and the voltage. This is necessary to avoid the sparking threshold, to achieve a good time resolution and to keep the gain of the detectors high and constant. The. PPACs are operated in 2 pi- and 4 pi-geometries. In 4 pi-geometry the detectors are allowed to function in coincidence and noncoincidence mode. The resulting pulse height and the time spectra are studied using the computer code ROOT and some conclusions are drawn from these analyses. The pulse height spectrum shows a clear separation between the fission fragments and the alpha particles and the time spectrum indicates a good intrinsic time resolution, 0.76 ns. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2819396
- author
- Yasin, Zafar ; Hansen, Kurt LU ; Lundin, Magnus LU ; Rassol, Roger ; Isaksson, Lennart LU and Schröder, Bent LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- PPACs, Cf-252, spontaneous fission, time resolution
- in
- International Journal of Modern Physics E
- volume
- 21
- issue
- 4
- publisher
- World Scientific Publishing
- external identifiers
-
- wos:000304004700009
- scopus:84862071928
- ISSN
- 0218-3013
- DOI
- 10.1142/S0218301312500528
- language
- English
- LU publication?
- yes
- id
- cbece79b-d387-4acb-8ed5-6ca3e9d6a217 (old id 2819396)
- date added to LUP
- 2016-04-01 14:44:48
- date last changed
- 2022-01-28 02:20:15
@article{cbece79b-d387-4acb-8ed5-6ca3e9d6a217,
abstract = {{The construction and performance of the parallel plate avalanche counters (PPACs) using a spontaneous fission source Cf-252 is described in this paper. The parallel plate circular electrodes are made of aluminum foils having a thickness less than ten microns. After fabrication, the detectors and the source are mounted inside a reaction chamber, the source between the two detectors. A low pressure is created inside the chamber using isobutane (C4H10) and a high voltage is applied to the electrodes. The detectors are first operated at different pressures and voltages to find the optimum values of the pressure and the voltage. This is necessary to avoid the sparking threshold, to achieve a good time resolution and to keep the gain of the detectors high and constant. The. PPACs are operated in 2 pi- and 4 pi-geometries. In 4 pi-geometry the detectors are allowed to function in coincidence and noncoincidence mode. The resulting pulse height and the time spectra are studied using the computer code ROOT and some conclusions are drawn from these analyses. The pulse height spectrum shows a clear separation between the fission fragments and the alpha particles and the time spectrum indicates a good intrinsic time resolution, 0.76 ns.}},
author = {{Yasin, Zafar and Hansen, Kurt and Lundin, Magnus and Rassol, Roger and Isaksson, Lennart and Schröder, Bent}},
issn = {{0218-3013}},
keywords = {{PPACs; Cf-252; spontaneous fission; time resolution}},
language = {{eng}},
number = {{4}},
publisher = {{World Scientific Publishing}},
series = {{International Journal of Modern Physics E}},
title = {{Applicability of Parallel Plate Avalanche Counters to Spontaneous Fission from Cf-252}},
url = {{http://dx.doi.org/10.1142/S0218301312500528}},
doi = {{10.1142/S0218301312500528}},
volume = {{21}},
year = {{2012}},
}