The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2012
Filed:
Jul. 02, 2008
Yong Hamb Kim, Daejeon, KR;
Kyoung Beom Lee, Daejeon, KR;
Min Kyu Lee, Daejeon, KR;
Sang Jun Lee, Seoul, KR;
Yong Hamb Kim, Daejeon, KR;
Kyoung Beom Lee, Daejeon, KR;
Min Kyu Lee, Daejeon, KR;
Sang Jun Lee, Seoul, KR;
Korea Research Institute of Standards and Science, Daejeon, KR;
Abstract
Disclosed herein are a method and an apparatus to identify alpha-emitting radionuclides and to measure absolute alpha radioactivity using a low temperature detector. A 4π metallic absorber which encloses a radioactive material containing alpha-emitting radionuclides absorbs the total alpha decay energy in the form of thermal energy. The corresponding temperature changes are measured by a low temperature detector attached to the 4π absorber with high energy resolution. The identification of alpha-emitting radionuclides is declared by comparing the measured temperature signal with characteristic decay energy of radionuclides. The absolute amount of the radionuclides is determined by counting the number of the pulses for each of the identified nuclides.