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Title: Measurement of the {sup 12}C({alpha},{gamma}){sup 16}O reaction at TRIAC

Abstract

We have measured the {gamma}-ray angular distribution of the {sup 12}C({alpha},{gamma}){sup 16}O reaction at TRIAC (Tokai Radioactive Ion Accelerator Complex) to accurately determine the E1 and E2 cross sections. In this experiment, we used high efficiency anti-Compton NaI(T1) spectrometers to detect a {gamma}-ray from the reaction with large S/N ratio, intense pulsed {alpha}-beams to discriminate true event from background events due to neutrons from {sup 13}C({alpha},n){sup 16}O reaction with a time-of-flight (TOF) method. We succeeded in removing a background events due to neutrons and clearly detected {gamma}-ray from the {sup 12}C({alpha}{gamma}){sup 16}O reaction with high statistics.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [2];  [2];  [2];  [2]
  1. Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22075755
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1484; Journal Issue: 1; Conference: Conference on origin of matter and evolution of galaxies 2011, Wako (Japan), 14-17 Nov 2011; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA PARTICLES; ALPHA REACTIONS; ANGULAR DISTRIBUTION; CARBON 12 TARGET; CARBON 13 TARGET; CROSS SECTIONS; E1-TRANSITIONS; E2-TRANSITIONS; EFFICIENCY; GAMMA DETECTION; GAMMA RADIATION; NAI DETECTORS; NEUTRONS; OXYGEN 16; TIME-OF-FLIGHT METHOD

Citation Formats

Makii, H., Miyatake, H., Wakabayashi, Y., Ishiyama, H., Niki, K., Okada, M., Imai, N., Watanabe, Y. X., Hirayama, Y., Jeong, S. C., Shima, T., Nishinaka, I., Mitsuoka, S., Nishio, K., Chiba, S., High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Osaka University, Ibaraki, Osaka 567-0047, and Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195. Measurement of the {sup 12}C({alpha},{gamma}){sup 16}O reaction at TRIAC. United States: N. p., 2012. Web. doi:10.1063/1.4763406.
Makii, H., Miyatake, H., Wakabayashi, Y., Ishiyama, H., Niki, K., Okada, M., Imai, N., Watanabe, Y. X., Hirayama, Y., Jeong, S. C., Shima, T., Nishinaka, I., Mitsuoka, S., Nishio, K., Chiba, S., High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Osaka University, Ibaraki, Osaka 567-0047, & Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195. Measurement of the {sup 12}C({alpha},{gamma}){sup 16}O reaction at TRIAC. United States. doi:10.1063/1.4763406.
Makii, H., Miyatake, H., Wakabayashi, Y., Ishiyama, H., Niki, K., Okada, M., Imai, N., Watanabe, Y. X., Hirayama, Y., Jeong, S. C., Shima, T., Nishinaka, I., Mitsuoka, S., Nishio, K., Chiba, S., High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801, Osaka University, Ibaraki, Osaka 567-0047, and Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195. Mon . "Measurement of the {sup 12}C({alpha},{gamma}){sup 16}O reaction at TRIAC". United States. doi:10.1063/1.4763406.
@article{osti_22075755,
title = {Measurement of the {sup 12}C({alpha},{gamma}){sup 16}O reaction at TRIAC},
author = {Makii, H. and Miyatake, H. and Wakabayashi, Y. and Ishiyama, H. and Niki, K. and Okada, M. and Imai, N. and Watanabe, Y. X. and Hirayama, Y. and Jeong, S. C. and Shima, T. and Nishinaka, I. and Mitsuoka, S. and Nishio, K. and Chiba, S. and High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801 and Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 and High Energy Accelerator Research Organization, Tsukuba, Ibaraki, 305-0801 and Osaka University, Ibaraki, Osaka 567-0047 and Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195},
abstractNote = {We have measured the {gamma}-ray angular distribution of the {sup 12}C({alpha},{gamma}){sup 16}O reaction at TRIAC (Tokai Radioactive Ion Accelerator Complex) to accurately determine the E1 and E2 cross sections. In this experiment, we used high efficiency anti-Compton NaI(T1) spectrometers to detect a {gamma}-ray from the reaction with large S/N ratio, intense pulsed {alpha}-beams to discriminate true event from background events due to neutrons from {sup 13}C({alpha},n){sup 16}O reaction with a time-of-flight (TOF) method. We succeeded in removing a background events due to neutrons and clearly detected {gamma}-ray from the {sup 12}C({alpha}{gamma}){sup 16}O reaction with high statistics.},
doi = {10.1063/1.4763406},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1484,
place = {United States},
year = {2012},
month = {11}
}