The Felsenkeller shallow-underground laboratory achieves gamma-ray backgrounds low enough, and carbon beam currents high enough, to make a sensitive measurement of carbon-12(alpha,gamma)oxygen-16 appear feasible.
Ultra-sensitive in-beam gamma-ray spectroscopy for nuclear astrophysics at LUNA
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abstract
Ultra-sensitive in-beam gamma-ray spectroscopy studies for nuclear astrophysics are performed at the LUNA (Laboratory for Underground Nuclear Astrophysics) 400 kV accelerator, deep underground in Italy's Gran Sasso laboratory. By virtue of a specially constructed passive shield, the laboratory gamma-ray background for E_\gamma < 3 MeV at LUNA has been reduced to levels comparable to those experienced in dedicated offline underground gamma-counting setups. The gamma-ray background induced by an incident alpha-beam has been studied. The data are used to evaluate the feasibility of sensitive in-beam experiments at LUNA and, by extension, at similar proposed facilities.
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nucl-ex 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
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Background in $\gamma$-ray detectors and carbon beam tests in the Felsenkeller shallow-underground accelerator laboratory
The Felsenkeller shallow-underground laboratory achieves gamma-ray backgrounds low enough, and carbon beam currents high enough, to make a sensitive measurement of carbon-12(alpha,gamma)oxygen-16 appear feasible.