(n, alpha) Cross-section measurement using a gaseous sample and a gridded ionization chamber

Authors
Sanami, T Baba, M Saito, K Hirakawa, N
Citation
T. Sanami et al., (n, alpha) Cross-section measurement using a gaseous sample and a gridded ionization chamber, NUCL INST A, 440(2), 2000, pp. 403-408
Citations number
8
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
440
Issue
2
Year of publication
2000
Pages
403 - 408
Database
ISI
SICI code
0168-9002(20000201)440:2<403:(ACMUA>2.0.ZU;2-9
Abstract
We developed a method of (n, alpha) cross-section measurement using a gaseo us sample in a gridded ionization chamber (GIC). This method enables us to measure the cross section of gaseous samples, such as C, O and N, with very large solid angle close to 4 pi without distortion due to energy loss in t he sample. The detection efficiency, which is difficult to estimate for gas eous samples, was estimated by using GIC signals and tight neutron collimat ion. This method was verified through the C-12(n, alpha(0))Be-9 cross-secti on measurement for 14.1 MeV neutrons. (C) 2000 Elsevier Science B.V. All ri ghts reserved.