Measurements of low radioactive contaminations in lead using bolometric detectors

doi:10.1016/0168-583X(93)95884-8

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Volume 83, Issue 4, December 1993, Pages 539-544

https://doi.org/10.1016/0168-583X(93)95884-8 Get rights and content

Abstract

Bolometric detectors made with samples of crystalline and polycrystalline lead have been operated to measure their internal radioactivity due to ²¹⁰Pb. It has been found that contaminations of hundreds of becquerels per kilogram are present in commercial low radioactivity lead and that these contaminations can be reduced by an order of magnitude by crystallisation. A low activity of a few hundreds of millibecquerels per kilogram still persists in specially prepared low radioactivity lead. No evidence for contamination is on the contrary found in a 2000 year old lead sample from a sunk Roman ship, at a level of less than 20 millibecquerel per kilogram.

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Measurements of low radioactive contaminations in lead using bolometric detectors

Abstract

Physica

Nucl. Instr. and Meth.

Phys. Lett.

Phys. Rev.

Rep. Prog. Phys.

Nucl. Phys. B

Nucl. Phys. News

J. Phys. G: Nucl. Part. Phys.

Phys. Rep.

Measurements of Th and U in acrylic at the ppt level

Analysis of sub-ppb radioactive species in metals by glow discharge techniques