The determination of electron density by the dual-energy Compton scatter method

Autor:	Jay P. Sackler, Alan L. Huddleston
Rok vydání:	1985
Předmět:	Physics Electron density Photon business.industry Scattering Astrophysics::High Energy Astrophysical Phenomena Compton scattering General Medicine Electron Radiation Optics Attenuation coefficient business Electron scattering
Zdroj:	Medical Physics. 12:13-19
ISSN:	0094-2405
DOI:	10.1118/1.595730
Popis:	The intensity of Compton scattered photons is directly proportional to the electron density of a substance; therefore it is possible to detect changes in electron density by this noninvasive method. The source-detector geometry has been varied to study the effects of geometry on the calculated electron density values, using a 90 degrees scattering angle. The dual-energy Compton scatter method provides a determination of electron density in known samples, with an uncertainty of less than 1% for the optimal geometry. The effective linear attenuation coefficient for Compton scatter has been determined with an uncertainty of 2.1%-3.6% for the optimal geometry used. The applications of the dual-energy Compton scattering technique in radiotherapy dosimetry and skeletal bone densitometry are being investigated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7a6c71cb2779c2eec2a7350701cdcda5 https://doi.org/10.1118/1.595730 Zobrazit plný text záznamu Plný text