Scholarlink

<p>Certain historic samples are housed in small display containers that are not to be disturbed in order to ensure safety of the sample or the environment. However, performing isotopic measurements on these artifacts is of scientific value and therefore a nondestructive method in preparation of a future sampling is needed. A replica of a historical sample housing at UC Berkeley was constructed, and a series of evacuation and swipes tests were performed using neutron activated La<sub>2</sub>O<sub>3</sub> powder as an easily measurable surrogate for a historical PuO<sub>2</sub> powder. The <sup>140</sup>La is safer to handle than plutonium isotopes and allows for sampling optimization tests. When the lid of the box was open, substantial releases and aerosolization of <sup>140</sup>La were observed. With the lid closed, the release of <sup>140</sup>La was still sufficient to suggest a successful sampling campaign.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Method development for the remote and non-destructive sampling of precious radioisotopes in closed containers using radiolanthanum as a surrogate

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月29日

查看全文
  • Nedim Sahovic,
  • Dominik Boya,
  • Dieter Hainz,
  • Phillip Broughton,
  • Fabian Quurk,
  • Heinz Matusch,
  • Zsuzsanna Macsik,
  • Stephen P. LaMont,
  • Peter Hosemann,
  • Georg Steinhauser

摘要

Certain historic samples are housed in small display containers that are not to be disturbed in order to ensure safety of the sample or the environment. However, performing isotopic measurements on these artifacts is of scientific value and therefore a nondestructive method in preparation of a future sampling is needed. A replica of a historical sample housing at UC Berkeley was constructed, and a series of evacuation and swipes tests were performed using neutron activated La2O3 powder as an easily measurable surrogate for a historical PuO2 powder. The 140La is safer to handle than plutonium isotopes and allows for sampling optimization tests. When the lid of the box was open, substantial releases and aerosolization of 140La were observed. With the lid closed, the release of 140La was still sufficient to suggest a successful sampling campaign.