Development and Validation of an Interactive Efficient Dose Rates Distribution Calculation Program Arshield for Visualization of Radiation Field in Nuclear Power Plants

In the lifetime extension of nuclear power plants (NPPs) context, aging of electric cables has to be very well understood in order to predict their end-of-life and thus to replace them on time. Therefore, evaluation and understanding of the ageing mechanism of the cable insulating material is mandatory under conditions as close as possible of those encountered in NPPs. In this context, different formulated crosslinked polyethylenes (XLPE)—one of the polymers used nowadays to manufacture the insulator layer—have been irradiated under oxidative conditions, at two different dose rates and at different aging doses. Gases emitted and consumed from the irradiated polymers were quantified to identify the primary processes happening in the materials and thus the interactions involved between the different molecules composing the formulated polymers.

Download Full-text

An Analysis of Radiation Field Characteristics for Extremity Dosimetry in Nuclear Power Plants

Progress in Nuclear Science and Technology ◽

10.15669/pnst.1.170 ◽

2011 ◽

Vol 1 (0) ◽

pp. 170-173 ◽

Cited By ~ 1

Author(s):

Hee Geun KIM ◽

Tae Young KONG

Keyword(s):

Radiation Field ◽

Nuclear Power ◽

Power Plants ◽

Nuclear Power Plants

Download Full-text

Development and Validation of Rapid 3D Radiation Field Evaluation Technique for Nuclear Power Plants

Science and Technology of Nuclear Installations ◽

10.1155/2020/8815650 ◽

2020 ◽

Vol 2020 ◽

pp. 1-7

Author(s):

Weifeng Lyu ◽

Wenwang Ran ◽

Jie Liu ◽

Jingyu Zhang ◽

Shaohua Tang ◽

...

Keyword(s):

Power Plant ◽

Nuclear Power Plant ◽

Radiation Field ◽

Nuclear Power ◽

Power Plants ◽

Nuclear Power Plants ◽

Field Evaluation ◽

Dose Optimization ◽

Evaluation Technique ◽

Occupational Dose

Rapid 3D radiation field evaluation is the key point of occupational dose optimization for design and operation of nuclear power plant. Based on the requirement analysis from designers and operators of nuclear power plant, three key technical issues are identified and solved through the development of the RPOS system, which are rapid calculation of 3D radiation field, reconstruction of the calculated 3D radiation field based on measured data, and occupational dose optimization based on 3D radiation field. Operational measurements of dose rate from in-service nuclear power plants are used to test the RPOS system, which shows that accurate 3D radiation field can be rapidly generated by the RPOS system and effectively used on the occupational dose optimization for on-site workers. The applications of the established rapid 3D radiation field evaluation technique on HPR1000 unit design provide evidence on its feasibility in a large scale, the improvement of radiation protection design efficiency and the enhancement of ALARA assessment and justification for nuclear power plants.

Download Full-text