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(2009)
Radiation Safety Standards (NRB-99/2009). Sanitary and Epidemiological Rules and Regulations, Federal Center for Hygiene and Epidemiology of Rospotrebnadzor
(2012)
Evaluation of the energy release in a target with uranium-containing material for the production of 99Mo using targets of an improved design in the WWR-Ts reactor,
Oleg Kochnov, Valerij Kolesov, Roman Fomin (2012)
Оценка энерговыделения в мишени с урансодержащим материалом при производстве 99Мо с использованием мишеней усовершенствованной конструкции на реакторе ВВР-ц, 2012
Vertical section of the model: 1) volumetric source of γ-radiation; 2) viewing window with the dimensions 500 × 900 mm
(2011)
Creation of a precision model of the WWR-Ts reactor for its design optimization and production of 99Mo and other radionuclides,
Medical radionuclides irradiated in hot cells emanate from targets irradiated in a reactor. Limitations associated with the maximum dose rate do not allow more than eight targets to be processes simultaneously, which increases the processing time and reduces the number of targeted radionuclides produced. The possibilities of processing a larger number of targets in hot cells or shortening their hold-up time after irradiation in a WWR-Ts reactor are analyzed. A computational model of an irradiated target was formulated. The computational results for targets made it possible to enumerate and estimate the radiation level of the radionuclides making the main contribution in the gamma source. The dose rate was calculated for processing of eight and 10 targets with hold-up time 20 h and eight targets with 10 h hold-up. The calculations showed that the dose rate under the considered cases does not exceed the maximum admissible value. The calculations are compared with experiment.
Atomic Energy – Springer Journals
Published: Jul 1, 2022
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