225Ac及其子代的半衰期和伽马射线发射强度测量。

IF 1.8 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-09-05 DOI:10.1016/j.apradiso.2025.112142

Leticia Pibida , Gulakhshan Hamad , Denis E. Bergeron , Brittany Broder , Stephen Adler , Jeffrey T. Cessna , Adam J. Pearce , Jerome LaRosa , Mark Tyra , Brian E. Zimmerman

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引用次数: 0

摘要

美国国家标准与技术研究所（NIST）对225Ac进行了新的活度标准化测量。作为这项工作的一部分，使用几个高纯度锗（HPGe）探测器确定了225Ac及其后代的伽马射线的绝对光子发射强度。此外，采用HPGe检测器、井型NaI（Tl）检测器和微剂量校准器测定了225Ac的半衰期。采用了几种测量技术来确定影响半衰期测定的源杂质。

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Half-life and gamma-ray emission intensity measurements for 225Ac and progeny

The National Institute of Standards and Technology (NIST) performed new activity standardization measurements for ²²⁵Ac. As part of this work, the absolute photon emission intensities for the gamma-rays of ²²⁵Ac and progeny were determined using several high-purity germanium (HPGe) detectors. In addition, the half-life for ²²⁵Ac was determined using HPGe detectors, a well-type NaI(Tl) detector and micro-dose calibrator. Several measurement techniques were used to determine the source impurities that affect the half-life determination.

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.