Published December 1993 | Version v1
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Measurement of the Pb-210 content of commercially available lead samples

Creators

Description

The method for the determination of the specific activity of a reference material ''210Pb in lead'' is described, and it is shown how the specific activity of other samples is obtained by relative measurements. Proportional counters for the measurement of β radiation emitted in the decay of 210Pb and its daughters and Ge spectrometers for the measurement of photons (46.5 keV) are used. The lower limit of detection is of the order of 3 mBq g-1 (1 day measurement time) in the beta measurements and about 40 mBq g-1 in photon spectrometry (10 days measuring time). (orig./HP)

Availability note (English)

MF available from INIS under the Report Number.

Abstract (German)

Das Verfahren zur Bestimmung der spezifischen Aktivitaet eines Referenzmaterials ''210Pb in Blei'' wird beschrieben. Es wird gezeigt, wie die spezifische Aktivitaet anderer Bleisorten durch Relativmessungen erhalten wird. Dabei werden Proportionalzaehler fuer die Messung der beim Zerfall von 210Pb und seiner Tochterprodukte emittierten β-Strahlung als auch Ge-Spektrometer fuer die Messung der Photonenstrahlung (46,5 keV) verwendet. Die Nachweisgrenze bei der Betazaehlung liegt bei 3 mBq g-1 (1 Tag Messzeit), bei der Photonenspektrometrie bei 40 mBq g-1 (10 Tage Messzeit). (orig./HP)

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Additional details

Additional titles

Original title (German)
Messung des

Publishing Information

ISBN
3-89429-435-3
Imprint Pagination
33 p.
ISSN
0341-6747
Report number
PTB-Ra--33

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
25040651
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
BACKGROUND RADIATION; BETA DETECTION; GAMMA DETECTION; IMPURITIES; LEAD; LEAD 210; LOW LEVEL COUNTERS; NATURAL RADIOACTIVITY; RADIATION DETECTORS; SENSITIVITY; SHIELDING MATERIALS
Descriptors DEC
ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHARGED PARTICLE DETECTION; DETECTION; ELEMENTS; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; LEAD ISOTOPES; MATERIALS; MEASURING INSTRUMENTS; METALS; NUCLEI; RADIATION DETECTION; RADIATIONS; RADIOACTIVITY; RADIOISOTOPES; YEARS LIVING RADIOISOTOPES