The solid angle (geometry factor) for a spherical surface source and an arbitrary detector aperture

Journal Article · Wed Jan 13 00:00:00 EST 2016 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2015.12.060· OSTI ID:1239547

Favorite, Jeffrey A. ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

It is proven that the solid angle (or geometry factor, also called the geometrical efficiency) for a spherically symmetric outward-directed surface source with an arbitrary radius and polar angle distribution and an arbitrary detector aperture is equal to the solid angle for an isotropic point source located at the center of the spherical surface source and the same detector aperture.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC52-06NA25396
• OSTI ID: 1239547
• Report Number(s): LA-UR-15-26118; PII: S016890021501640X
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 813; ISSN 0168-9002
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
97 MATHEMATICS AND COMPUTING
61 RADIATION PROTECTION AND DOSIMETRY
Solid angle
geometry factor
geometrical efficiency
spherical surface source
arbitrary detector aperture