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Direct measurement of 4He(12C, 16O)γ reaction at KUTL.

Authors :
Fujita, K.
Sagara, K.
Teranishi, T.
Goto, T.
Iwabuchi, R.
Matsuda, S.
Nakano, K.
Oba, N.
Taniguchi, M.
Yamaguchi, H.
Source :
AIP Conference Proceedings; 6/1/2010, Vol. 1238 Issue 1, p211-213, 3p, 1 Diagram, 1 Graph
Publication Year :
2010

Abstract

A <superscript>12</superscript>C+<superscript>4</superscript>He→<superscript>16</superscript>O+γ is regarded as the very important reaction to know the evolution of heavy stars. The cross section is, however, still unknown in spite of more than 40 years experiment in the world because of an existence of a resonance state of <superscript>16</superscript>O at sub-threshold region. A cross section measurement with the direct detection of the produced <superscript>16</superscript>O from E<subscript>cm</subscript> = 2.4 downto 0.7 MeV have been planned at Kyushu University Tandem Laboratory(KUTL). Detection of the <superscript>16</superscript>O is the most possible method at low energy, since a detection efficiency of the <superscript>16</superscript>O is very high. The new windowless blow-in gas target was developed to achieve the pressure of 24 Torr. Many movable slit were installed in a recoil mass separator, so that the backgrounds generated by the <superscript>12</superscript>C beam was eliminated effectively. The results of recent experiments at E<subscript>cm</subscript> = 2.4 and 1.5 MeV are reported. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0094243X
Volume :
1238
Issue :
1
Database :
Complementary Index
Journal :
AIP Conference Proceedings
Publication Type :
Conference
Accession number :
51177587
Full Text :
https://doi.org/10.1063/1.3455931