Induction filtering for proportional counter amplifiers

Technical Report · Wed Mar 01 00:00:00 EST 1989

DOI:https://doi.org/10.2172/6276326· OSTI ID:6276326

Bennett, E F

The interesting range of the neutron spectrum infusion blankets includes all energies up to 14 MeV. A limited region of this spectrum (from 1 keV to 1 MeV) is amenable to recoil-proton proportional counting and these measurements are now made routinely at the FNS facility at JAERI. One aspect of proportional counter measurements is a consequence of the necessity to acquire data at the lower energies in the presence of much more numerous events of higher energy which overload and saturate pulse amplifiers. Saturation, together with high count rates required for good statistical measurement precision, can introduce systematic errors into the determination of proton recoil distributions. Here we treat this overload distortion problem by a filtering technique designed specifically for the unique ionization response of the proportional counter. Amplifiers having optimal filtering will provide measured proton recoil spectra with substantially less distortion than amplifiers optimized for other types of detectors. 7 refs., 12 figs., 2 tabs.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6276326
• Report Number(s): ANL/FPP/TM-234; ON: DE89008992; TRN: 89-014021
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
PROTON RECOIL DETECTORS
TESTING
THERMONUCLEAR REACTOR MATERIALS
NEUTRON SPECTRA
AMPLIFIERS
DESIGN
PROPORTIONAL COUNTERS
ELECTRONIC EQUIPMENT
EQUIPMENT
MATERIALS
MEASURING INSTRUMENTS
NEUTRON DETECTORS
RADIATION DETECTORS
SPECTRA
700209* - Fusion Power Plant Technology- Component Development & Materials Testing
440103 - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation