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http://dx.doi.org/10.14407/jrp.2015.40.2.101

A Comparative Study on Radiochemical Pre-treatment Methods for Airborne Uranium-Isotropic Analysis  

Kang, Han-Byeol (Korea Institute of Nuclear Non-proliferation and Control)
Chung, Heejun (Korea Institute of Nuclear Non-proliferation and Control)
Park, Seunghoon (Korea Institute of Nuclear Non-proliferation and Control)
Shin, Jung-Ki (Korea Institute of Nuclear Non-proliferation and Control)
Kwak, Sung-Woo (Korea Institute of Nuclear Non-proliferation and Control)
Publication Information
Journal of Radiation Protection and Research / v.40, no.2, 2015 , pp. 101-109 More about this Journal
Abstract
Alpha spectrometry is typically used for the assessment of uranium particle concentrations and its accuracy can be directly related to the accuracy in which the radiochemical pre-treatment is conducted. Ashing and alkali fusion methods are typically used but the ashing method requires longer analysis time and the alkali fusion method is extremely costly. Therefore, a new pre-treatment method using ultrasonic cleaning was developed and its experimental result was compared against the two conventional methods in terms of pre-treatment time, convenience, cost, and recovery rate of a target material. The results that were obtained by the conventional methods(ashing and alkali fusion) and the new method were compared. Consequently, even though the shorter pre-treatment time was required, the new technique showed almost same recovery rate comparing with two conventional methods. The new method was also featured by its relatively lower cost and a simpler process than two conventional methods.
Keywords
Uranium; Radioisotopic analysis; Pre-treatment; Radiochemistry; Ultrasonic cleaning method;
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