دورية أكاديمية
Development of a new integrated IN-VIVO counting system at the QST.
| العنوان: | Development of a new integrated IN-VIVO counting system at the QST. |
|---|---|
| المؤلفون: | Tamakuma Y; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.; Center for Radiation Research and Education, Nagasaki University, 1-12-4 Sakamoto, Nagasaki 852-8523, Japan., Naito M; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan., Yang G; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan., Tani K; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan., Yajima K; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan., Kim E; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan., Kowatari M; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan., Kurihara O; National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan. |
| المصدر: | Radiation protection dosimetry [Radiat Prot Dosimetry] 2023 Oct 11; Vol. 199 (15-16), pp. 1848-1852. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: England NLM ID: 8109958 Publication Model: Print Cited Medium: Internet ISSN: 1742-3406 (Electronic) Linking ISSN: 01448420 NLM ISO Abbreviation: Radiat Prot Dosimetry Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: 2004- : Oxford, UK : Oxford University Press Original Publication: Ashford, Kent : Nuclear Technology Pub., c1981- |
| مواضيع طبية MeSH: | Americium* , Germanium*, Male ; Humans ; Thorax ; Whole-Body Counting ; Phantoms, Imaging ; Monte Carlo Method |
| مستخلص: | A new in-vivo counting system that functions as both a whole-body counter (WBC) and a lung counter (LC) was developed at the QST to enhance its dose assessment capability. This paper presents an overview of this system and the results of its performance tests. For use of the system as a WBC, three high purity germanium (HPGe) detectors installed in a 20-cm-thick iron shielding chamber are linearly arrayed over a subject lying on the bed, whereas two of the three HPGe detectors are placed over the subject's chest from side to side when using the system as an LC. The new in-vivo system was calibrated using three de-facto phantoms owned by the QST: an adult-male BOttle Manikin ABsorption (BOMAB) phantom, a Lawrence Livermore National Laboratory (LLNL) phantom and a Japan Atomic Energy Research Institute (JAERI) phantom. Monte Carlo simulations were also performed to determine an optimum location for the three detector array in the WBC mode and revealed that the peak efficiency for the BOMAB phantom (662 keV) was little varied as long as the middle detector was placed above the thorax and abdomen parts of the phantom. The calculated peak efficiencies agreed well with the observed peak efficiencies for photons with energies over 100 keV. For lung counting, a tentative Minimum Detectable Activity of 241Am was evaluated as 9.5 Bq for a counting time of 30 minutes, and a Japanese male subject with an average chest wall thinness (2.27 cm). The developed system is now ready for use. (© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.) |
| المشرفين على المادة: | SK9YL6NK5M (Americium-241) VW92PHU2UY (Americium) 00072J7XWS (Germanium) |
| تواريخ الأحداث: | Date Created: 20231011 Date Completed: 20231101 Latest Revision: 20231101 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1093/rpd/ncac226 |
| PMID: | 37819285 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1742-3406 |
|---|---|
| DOI: | 10.1093/rpd/ncac226 |