(n,{alpha}) cross section measurement of gaseous sample using gridded ionization chamber. Cross section determination Sanami, Toshiya; Baba, Mamoru; Saito, Keiichiro; Ibara, Yasutaka; Hirakawa, Naohiro [Tohoku Univ., Sendai (Japan). Faculty of Engineering] 66 PHYSICS; OXYGEN 16 TARGET; NEUTRON REACTIONS; ALPHA SPECTRA; CARBON 12 TARGET; MEV RANGE 10-100; IONIZATION CHAMBERS; NUCLEAR REACTION YIELD; CROSS SECTIONS; EXPERIMENTAL DATA We are developing a method of (n,{alpha}) cross section measurement using gaseous samples in a gridded ionization chamber (GIC). This method enables cross section measurements in large solid angle without the distortion by the energy loss in a sample, but requires a method to estimate the detection efficiency. We solve this problem by using GIC signals and a tight neutron collimation. The validity of this method was confirmed through the {sup 12}C(n,{alpha}{sub 0}){sup 9}Be measurement. We applied this method to the {sup 16}O(n,{alpha}){sup 13}C cross section around 14.1 MeV. (author) Japan Atomic Energy Research Inst., Tokyo (Japan) OSTI as DE97758662 Japan 1997-03-01 English Technical Report Conference: 1996 symposium on nuclear data, Tokai (Japan), 21-22 Nov 1996; Other Information: PBD: Mar 1997; Related Information: Is Part Of Proceedings of the 1996 symposium on nuclear data; Iguchi, Tetsuo [Nagoya Univ. (Japan)]; Fukahori, Tokio [eds.]; PB: 332 p. Medium: X; Size: pp. 176-181 https://doi.org/ ON: DE97758662 [] JAERI-Conf-97-005; CONF-9611184-; INDC(JPN)-179/U Other: ON: DE97758662; TRN: JP9709102 JPN; SCA: 663430; PA: JPN-97:009102; EDB-97:147393; SN: 97001867006 2008-02-05 545182 https://www.osti.gov/etdeweb/servlets/purl/545182