Published May 1969 | Version v1
Miscellaneous Open

A fluorescent method for production of monoenergetic X rays used for testing of γ dosimeters

Creators

  • 1. Commissariat a l'Energie Atomique - CEA, Centre d'Etudes Nucleaires de Grenoble, Service de Protection et des Laboratoires de Haute Activite (France)

Description

There is a need of monoenergetic γ or X rays to measure the energy dependence of γ dosemeters. Under 200 keV no usual radioactive sources exist. Filtration of a primary X beam is possible but the rays obtained are not very monoenergetic. Fluorescence of materials excited by a primary X beam are suitable for this use. This report describes a fluorescent chamber which can be adapted on the window of an X generator. Different targets can be put in the primary beam and energy between 10 keV and 100 keV are obtained. The characteristics of these rays (intensity, mono-energeticity) are given. (authors)

Abstract (French)

Cette note decrit une chambre de fluorescence et son adaptation sur generateur X, permettant d'obtenir des rayonnements X de basse energie (0 < E < 100 keV) par la methode de fluorescence, pour l'etalonnage des dosimetres. Differentes cibles sont etudiees (Cible/Energie raie Kα1): Cu/8 keV, Mo/17.5 keV, Cd/23.2 keV, Nd/37.4 keV, Er/49 keV, w/59.3 keV, Au/68.8 keV, UO2/98.4 keV. On a determine les conditions optimales de fonctionnement du generateur X, les epaisseurs de cibles, les epaisseurs des filtrations necessaires a l'absorption des raies L et les debits d'exposition obtenus. Les faisceaux des rayonnements de fluorescence sont caracterises par les energies efficaces et les facteurs d'homogeneite. (auteurs)

Files

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Additional details

Additional titles

Original title (French)
Production de rayonnements X monoenergetiques par la methode de fluorescence en vue de l'etalonnage de dosimetres γ

Publishing Information

Imprint Pagination
58 p.
Report number
CEA-N--1080

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
49041827
Subject category
S07: ISOTOPES AND RADIATION SOURCES; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S61: RADIATION PROTECTION AND DOSIMETRY;
Descriptors DEI
ABSORPTION SPECTRA; ATTENUATION; COMPTON EFFECT; DOSE RATES; ENERGY SPECTRA; ENERGY-LEVEL TRANSITIONS; FILTERS; FLUORESCENCE; GAMMA RADIATION; IONIZATION CHAMBERS; PHOTOELECTRIC EFFECT; PHOTONS; PROPORTIONAL COUNTERS; SCINTILLATION COUNTERS; TARGETS; X RADIATION; X-RAY TUBES
Descriptors DEC
BOSONS; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELECTROMAGNETIC RADIATION; ELECTRON TUBES; ELEMENTARY PARTICLES; EMISSION; EQUIPMENT; FUNDAMENTAL INTERACTIONS; INTERACTIONS; IONIZING RADIATIONS; LUMINESCENCE; MASSLESS PARTICLES; MEASURING INSTRUMENTS; PHOTON EMISSION; RADIATION DETECTORS; RADIATIONS; SCATTERING; SPECTRA; X-RAY EQUIPMENT

Optional Information

Notes
8 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses