Universität zu Köln

Michel, M., Filby, A., Heinze, S., Margreiter, R. and Strub, E. (2022). AMS measurements of C-14, Cl-36, and Pu-239/240 samples taken in a 'small facility'. Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 533. S. 70 - 76. AMSTERDAM: ELSEVIER. ISSN 1872-9584

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Abstract

The release of nuclear facilities from regulatory control is commonly addressed by demonstrating that con-taminations are below 'clearance values'. AMS is commonly too laborious for a large number of samples, especially if nuclide vectors have been established, but it might be of interest for the release of a so-called 'small facility'. For this case study, a radiochemistry laboratory in Cologne, Germany was chosen. It was known that C-14, Cl-36 as well as 240Pu had been handled openly in this lab. There were no apparent contaminations, i.e., no alpha/beta contaminations that could be detected using a hand-held radiation monitor. Elevated values of C-14 were measured in three, increased values of Cl-36 in all and Pu-239 in only one of the examined samples. All measured activities are well below the release values, but it can be proven that the elements C-14, Cl-36, Pu-239 were handled openly in the 'small facility'.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Michel, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Filby, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Heinze, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Margreiter, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Strub, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-666362
DOI:	10.1016/j.nimb.2022.10.025
Journal or Publication Title:	Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
Volume:	533
Page Range:	S. 70 - 76
Date:	2022
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1872-9584
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/66636