Title of article
Studies of weak capture-γ-ray resonances via coincidence techniques
Author/Authors
Rowland، نويسنده , , C and Iliadis، نويسنده , , C and Champagne، نويسنده , , A.E and Dummer، نويسنده , , A.K and Fitzgerald، نويسنده , , R and Harley، نويسنده , , E.C.T and Mosher، نويسنده , , J and Runkle، نويسنده , , R، نويسنده ,
Pages
16
From page
610
To page
625
Abstract
A method for measuring weak capture-γ-ray resonances via γγ-coincidence counting techniques is described. The coincidence apparatus consisted of a large-volume germanium detector and an annular NaI(Tl) crystal. The setup was tested by measuring the weak ER=227 keV resonance in 26Mg(p,γ)27Al. Absolute germanium and NaI(Tl) counting efficiencies for a range of γ-ray energies and for different detector–target geometries are presented. Studies of the γ-ray background in our spectra are described. Compared to previous work, our method improves the detection sensitivity for weak capture-γ-ray resonances by a factor of ≈100. The usefulness of the present technique for investigations of interest to nuclear astrophysics is discussed.
Keywords
Gamma-ray background , Low-energy resonances , gamma-ray detection
Journal title
Astroparticle Physics
Record number
2018800
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