Safety procedures for the electron spectroscopy of actinides at the ALS

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This is an addendum to the ALS Experimental Safety Form Renewal for the continuation of actinide microspot experiments on beamlines 7.0. There are several modifications to the previously approved. procedures. There is an increase in the amount of allowable material of the low activity isotopes {sup 238}U, {sup 237}Np, {sup 242}Pu, and {sup 248}Cm. There is also the addition of {sup 99}Tc and the activity isotopes {sup 232}Th and {sup 243}Am to the list of permissible sample materials. All of the materials are alpha-emitters with negligible gamma fields with the exception of {sup 99}Tc which is a beta-emitter. There is ... continued below

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39 p.

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Shuh, D.K.; Edelstein, N.M. & Bucher, J.J. January 1, 1996.

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Description

This is an addendum to the ALS Experimental Safety Form Renewal for the continuation of actinide microspot experiments on beamlines 7.0. There are several modifications to the previously approved. procedures. There is an increase in the amount of allowable material of the low activity isotopes {sup 238}U, {sup 237}Np, {sup 242}Pu, and {sup 248}Cm. There is also the addition of {sup 99}Tc and the activity isotopes {sup 232}Th and {sup 243}Am to the list of permissible sample materials. All of the materials are alpha-emitters with negligible gamma fields with the exception of {sup 99}Tc which is a beta-emitter. There is a series of new experiments that requires the use of a crystal cleaver in the preparation chamber of the ultraESCA end station. The beamline 7.0 ultraESCA endstation has been suitably modified to permit the safe cleave of YUPd alloy rectangular ingots. AR of the sample materials are solids. The exact nature and composition of the samples are delineated in the sample preparation section that follows. A corresponding Radiological Work Authorization (RWA) must be issued for this work at ALS since the material amounts exceed those in the Low Activity Source (LAS) guidelines in Table I and those in the Values for Exemption of Sealed Source Inventory in Table II. The preliminary date for the next run of these sample materials has been tentatively scheduled in early February 1996 and this will be with the uranium cleave alloys, not the transuranic materials.

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39 p.

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INIS; OSTI as DE97004242

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  • Other Information: PBD: Jan 1996

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  • Other: DE97004242
  • Report No.: LBNL--39909
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/451220 | External Link
  • Office of Scientific & Technical Information Report Number: 451220
  • Archival Resource Key: ark:/67531/metadc675193

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  • January 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • April 5, 2016, 10:39 a.m.

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Shuh, D.K.; Edelstein, N.M. & Bucher, J.J. Safety procedures for the electron spectroscopy of actinides at the ALS, report, January 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc675193/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.