Elastic scattering of 81-keV γ rays

Abstract

A high-purity germanium detector was used to determine differential cross sections for the elastic scattering of 81-keV y rays by aluminum, nickel, tantalum, gold, and lead through angles of 60', 90', 120', and

Calculation of the total Rayleigh scattering cross sections of photons in the energy range of 30–50keV for Nb and Mo elements

“…The FF approximation breaks down badly when the photon energy is near or below the inner shell photoeffect thresholds, or at large momentum transfers (large scattering angles and high photon energy; Bradley et al, 1999b;Kissel et al, 1980). It has been found to be useful for the description of Rayleigh scattering, especially for small momentum transfers and photon energies much larger than K-shell electron binding energies (Basavaraju et al, 1994;Kissel, 2000). Brown and Mayers (1957) have proposed to use the MRFF approximation to the FF approximation, which was originally suggested by Franz (1935Franz ( ,1936.…”

Investigation of the Angle Dependence of the Photon–Atom Anomalous Scattering Factors

“…Agreement between this approach and experiment is rather good over most regimes of X-ray and y-ray energy -not too close to edges -and all scattering angles, for all elements that have been tested (Kane et al, 1986;Basavaraju, Kane, Kissel & Pratt, 1994;Basavaraju, Kane, Lad, Kissel & Pratt, 1995). Although these calculations require considerable computing resources, a substantial body of S-matrix data has been accumulated (see for example the description of Kissel et al, 1995) and continuing improvements to the code and method have made evaluation much less costly.…”

Photon Elastic Scattering Simulation: Validation and Improvements to Geant4

“…The error introduced by the digitization process was estimated by digitizing a few plots, whose numerical content is explicitly reported in the related publications. The reliability of the [58], [66], [69], [70], [76], [83], [91], [96], [98], [103], [107], [127], [132]- [135], [139]- [142], [148], [149], [153], [ [75], [113], [115], [127], [131], [135], [148], [ [76], [97], [113], [115], [131], [135], [ [75], [81], [88], [97], [115], [127], [131], [134], [135], [141], [148], [ , [69], [75],…”

“…[156] Hf 22.16-511 0.5-160 13 [62], [75], [102], [113] [66], [67], [69], [75], [77], [85]- [87], [98], [102], [105], [112]- [114], [119], [120], [123]- [127], [129], [145], [148]- [150], [152], [155], [156] 74 W 13.95-1408.1 0.5-165 151 [59], [60], [63]- [65], [78], [85]- [87], [102], [112], [113], [123], [124], [127], [148] [94], [102], [112], [113], [119], [120], [127], [131]- [133], [135],…”

“…13.95-1408.1 0.5-165 151 [59], [60], [63]- [65], [78], [85]- [87], [102], [112], [113], [123], [124], [127], [148]- [150], [ [94], [102], [112], [113], [119], [120], [127], [131]- [133], [135], [137], [138], [148], [149] 79 Au 5.41-511 0.5-160 108 [66], [69], [70], [75], [89], [97], [102], [107], [112], [113], [115], [131]- [135], [137]- [140], [145], [146], [148], [149], [156] 80 Hg 22.1-1600 0.5-135 16…”