A Beta-Gamma Discriminator Circuit

The major difficulty encountered in the determination of beta-ray dose in field conditions is generally the presence of a relatively high gamma-ray component. Conventional dosimetry instruments use a shield on the detector to estimate the gamma-ray component in comparison with the beta-ray component...

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Veröffentlicht in:	IEEE transactions on nuclear science 1985-01, Vol.32 (1), p.969-971
Hauptverfasser:	Erkkila, B. H., Wolf, M. A., Eisen, Y., Unruh, W. P., Brake, R. J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Circuits Displays Dosimetry Gamma ray detection Gamma ray detectors Instruments Laboratories Packaging Pulse amplifiers Spectroscopy
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creator	Erkkila, B. H. Wolf, M. A. Eisen, Y. Unruh, W. P. Brake, R. J.
description	The major difficulty encountered in the determination of beta-ray dose in field conditions is generally the presence of a relatively high gamma-ray component. Conventional dosimetry instruments use a shield on the detector to estimate the gamma-ray component in comparison with the beta-ray component. More accurate dosimetry information can be obtained from the measured beta spectrum itself. At Los Alamos, a detector and discriminator circuit suitable for use in a portable spectrometer have been developed. This instrument will discriminate between gammas and betas in a mixed field. The portable package includes a 256-channel MCA [1] which can be programmed to give a variety of outputs, including a spectral display, and may be programmed to read dose directly.
doi_str_mv	10.1109/TNS.1985.4336978
format	Article
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A. ; Eisen, Y. ; Unruh, W. P. ; Brake, R. J.</creator><creatorcontrib>Erkkila, B. H. ; Wolf, M. A. ; Eisen, Y. ; Unruh, W. P. ; Brake, R. J.</creatorcontrib><description>The major difficulty encountered in the determination of beta-ray dose in field conditions is generally the presence of a relatively high gamma-ray component. Conventional dosimetry instruments use a shield on the detector to estimate the gamma-ray component in comparison with the beta-ray component. More accurate dosimetry information can be obtained from the measured beta spectrum itself. At Los Alamos, a detector and discriminator circuit suitable for use in a portable spectrometer have been developed. This instrument will discriminate between gammas and betas in a mixed field. 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The portable package includes a 256-channel MCA [1] which can be programmed to give a variety of outputs, including a spectral display, and may be programmed to read dose directly.</description><subject>Circuits</subject><subject>Displays</subject><subject>Dosimetry</subject><subject>Gamma ray detection</subject><subject>Gamma ray detectors</subject><subject>Instruments</subject><subject>Laboratories</subject><subject>Packaging</subject><subject>Pulse amplifiers</subject><subject>Spectroscopy</subject><issn>0018-9499</issn><issn>1558-1578</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><recordid>eNo9j0FLAzEQRoMouFbvgpfFe7ZJJslmjnWttVD0YD2HbEwg4lpJ1oP_3i2tnj6Gb94wj5BrzhrOGc63Ty8NR6MaCaCxNSek4koZylVrTknFGDcUJeI5uSjlfRqlYqoit4v6LoyOrtwwuPo-FZ_TkD7duMt1l7L_TuMlOYvuo4SrY87I68Ny2z3SzfNq3S021AODkYoIOkZsnQctxRv2utdSOWBeAYCKymDshQbDBUcRe6ZaMEwK46XwiD3MCDvc9XlXSg7Rfk2_uPxjObN7Rzs52r2jPTpOyM0BSSGE__W_9hdKxkq8</recordid><startdate>19850101</startdate><enddate>19850101</enddate><creator>Erkkila, B. 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J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c303t-2f36ff97ac3642d9b6b645a30c53335f589fb263812192fb057380428c42c99b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1985</creationdate><topic>Circuits</topic><topic>Displays</topic><topic>Dosimetry</topic><topic>Gamma ray detection</topic><topic>Gamma ray detectors</topic><topic>Instruments</topic><topic>Laboratories</topic><topic>Packaging</topic><topic>Pulse amplifiers</topic><topic>Spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Erkkila, B. H.</creatorcontrib><creatorcontrib>Wolf, M. A.</creatorcontrib><creatorcontrib>Eisen, Y.</creatorcontrib><creatorcontrib>Unruh, W. P.</creatorcontrib><creatorcontrib>Brake, R. 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Conventional dosimetry instruments use a shield on the detector to estimate the gamma-ray component in comparison with the beta-ray component. More accurate dosimetry information can be obtained from the measured beta spectrum itself. At Los Alamos, a detector and discriminator circuit suitable for use in a portable spectrometer have been developed. This instrument will discriminate between gammas and betas in a mixed field. The portable package includes a 256-channel MCA [1] which can be programmed to give a variety of outputs, including a spectral display, and may be programmed to read dose directly.</abstract><pub>IEEE</pub><doi>10.1109/TNS.1985.4336978</doi><tpages>3</tpages><oa>free_for_read</oa></addata></record>
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subjects	Circuits Displays Dosimetry Gamma ray detection Gamma ray detectors Instruments Laboratories Packaging Pulse amplifiers Spectroscopy
title	A Beta-Gamma Discriminator Circuit
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