Direct measurement of {sup 4}He({sup 12}C, {sup 16}O)gamma reaction at KUTL

Journal Article · Tue Jun 01 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3455931· OSTI ID:21362104

Fujita, K; Sagara, K; Teranishi, T; Goto, T; Iwabuchi, R; Matsuda, S; Nakano, K; Oba, N; Taniguchi, M; Yamaguchi, H ^[1]

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1. Department of Physics, Kyushu University, Hakozaki, Fukuoka 812-8581 (Japan)

A {sup 12}C+{sup 4}He->{sup 16}O+gamma 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 {sup 16}O at sub-threshold region. A cross section measurement with the direct detection of the produced {sup 16}O from E{sub cm} = 2.4 downto 0.7 MeV have been planned at Kyushu University Tandem Laboratory(KUTL). Detection of the {sup 16}O is the most possible method at low energy, since a detection efficiency of the {sup 16}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 {sup 12}C beam was eliminated effectively. The results of recent experiments at E{sub cm} = 2.4 and 1.5 MeV are reported.

• OSTI ID: 21362104
• Journal Information: AIP Conference Proceedings, Vol. 1238, Issue 1; Conference: 7. Tours symposium on nuclear physics and astrophysics, Kobe (Japan), 16-20 Nov 2009; Other Information: DOI: 10.1063/1.3455931; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
CARBON 12 BEAMS
CARBON 12 REACTIONS
CHARGE EXCHANGE
CROSS SECTIONS
HELIUM 4
HELIUM 4 TARGET
MESONS
MEV RANGE 01-10
OXYGEN 16
STAR EVOLUTION
STARS
TANDEM ELECTROSTATIC ACCELERATORS
ACCELERATORS
BEAMS
BOSONS
ELECTROSTATIC ACCELERATORS
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
EVOLUTION
HADRONS
HEAVY ION REACTIONS
HELIUM ISOTOPES
ION BEAMS
ISOTOPES
LIGHT NUCLEI
MEV RANGE
NUCLEAR REACTIONS
NUCLEI
OXYGEN ISOTOPES
STABLE ISOTOPES
TARGETS