Precision measurements of total gamma ray cross sections with a high resolution detector

Autor: S. Bhuioka Reddy, Prakhya R. Sarma, V. Lakshminarayana, K. Parthasardhi, K. L. Narasimham
Rok vydání: 1987
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 257:378-380
ISSN: 0168-9002
Popis: Total gamma ray cross sections are obtained experimentally in Cd, Er and Pt at 122.061 and 136.474 keV and in Pd at 93.613 keV. A transmission experiment is conducted carefully using a high resolution hyperpure germanium (HPGe) detector and a good geometry setup to measure these cross sections with an accuracy close to 1%. In a transmission experiment there generally is a chance of underestimation of these cross sections due to small angle scattering. Photopeak areas that are evaluated must be free from scattering contributions as well as from background. Measures are taken to account correctly for the included small angle scattering. The experimental values are compared with theoretical and semiexperimental data and are found to be in good agreement.
Databáze: OpenAIRE