TY - JOUR
T1 - The validity of the doppler approximation in nuclear elastic scattering of capture gamma rays
AU - Arad (Huebschmann), B.
AU - Ben-David (Davis), G.
AU - Schlesinger, Y.
PY - 1964
Y1 - 1964
N2 - Evaluation of resonant scattering of gamma rays from nuclear levels requires the integration of the product of the source line and resonance level curves. This integral has been evaluated for the general case of two Doppler broadened curves, with arbitrary temperatures for source and scatterer nuclei, different natural line widths, and a separation δ eV between the two maxima. It is shown that the shape of a thermal neutron capture gamma ray line can be accurately represented by the pure Doppler shape. Only in special cases, however, can the nuclear level be approximated by the pure Doppler form.
AB - Evaluation of resonant scattering of gamma rays from nuclear levels requires the integration of the product of the source line and resonance level curves. This integral has been evaluated for the general case of two Doppler broadened curves, with arbitrary temperatures for source and scatterer nuclei, different natural line widths, and a separation δ eV between the two maxima. It is shown that the shape of a thermal neutron capture gamma ray line can be accurately represented by the pure Doppler shape. Only in special cases, however, can the nuclear level be approximated by the pure Doppler form.
UR - https://www.scopus.com/pages/publications/50549191133
U2 - 10.1016/0029-5582(64)90512-7
DO - 10.1016/0029-5582(64)90512-7
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AN - SCOPUS:50549191133
SN - 0029-5582
VL - 56
SP - 683
EP - 688
JO - Nuclear Physics
JF - Nuclear Physics
IS - C
ER -