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.
Direct measurement of the 15N(p,gamma)16O total cross section at novae energies
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
The 15N(p,gamma)16O reaction controls the passage of nucleosynthetic material from the first to the second carbon-nitrogen-oxygen (CNO) cycle. A direct measurement of the total 15N(p,gamma)16O cross section at energies corresponding to hydrogen burning in novae is presented here. Data have been taken at 90-230 keV center-of-mass energy using a windowless gas target filled with nitrogen of natural isotopic composition and a bismuth germanate summing detector. The cross section is found to be a factor two lower than previously believed.
fields
nucl-ex 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
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.