Shinohara, Koji; Okuji, Toshio*; Ishikawa, Masao; Baba, Mamoru*; Itoga, Toshiro*
Neutron brings the information about the energetic ion population. Radial neutron collimator system is used to measure a line-integrated neutron emission profile in JT-60U tokamak. An analog neutron-
pulse shape discrimination circuit was used to measure neutron flux from the DD reaction. The maximum count rate of the analog circuit is limited up to 1
10
counts/s. Aiming at increasing the count rate, a digital signal processing method for neutron- signal discrimination has been adopted to our collimator system. This includes a modification of hardware, a development of software, and a calibration. Due to this update, the radial neutron collimator system can output the information about the temporal evolution of neutron emission rate, temporal evolution of ray emission rate.
Language |
: | English |
|---|---|---|
Journal |
: | |
Volume |
: | 79 |
Number |
: | 10 |
Pages |
: | p.10E509_1 - 10E509_4 |
Publication Year/Month |
: | 2008/10 |
Meeting title |
: | 17th Topical Conference on High-Temperature Plasma Diagnostics |
Held date |
: | 2008/05 |
Location (city) |
: | Albuquerque |
Location (country) |
: | U.S.A. |
Paper URL |
: |
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Keywords |
: | no keyword |
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Cooperating Institute |
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Accesses |
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Percentile:19.4 Category:Instruments & Instrumentation |
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