Study of the Radiochromic Film for High Dose Measurement in Radiation Processing

Journal of Isotopes

LI Ming¹  LI Hua-zhi¹  CHEN Yi-zhen¹  CHEN Ke-sheng¹ 

[1] National Key Laboratory for Metrology and Calibration Techniques,China Institute of Atomic Energy;

关键词: radiation processing;    radiochromic film;    absorbed dose;    γ-ray;   

DOI  :  10.7538/tws.2016.29.01.0036

来源: DOAJ

【 摘 要 】

To establish the radiochromic film dosimeter for high dose level measurement during radiation processing, By corresponding formula and its preparation process research, batches of radiochromic film dosimeters were prepared using nylon as substrate and pararosaniline cyanide as dye. In Co-60 gamma reference radiation field, dosimetry response performance of radiochromic film was studied and results showed that the repeatability was good to 1.0%. The response curves demonstrated good linearity in the dose range of 5-210 kGy, and the signal of radiochromic film dosimeters after irradiation under the condition of low temperature storage within 2 weeks was stable. In addition, the radiochromic film dosimeters were not found to have noticeable dose rate dependence in the range of this experiment. In the linear dose range, radiochromic film dosimeter measures the absorbed dose, with extended uncertainty 4.2% (k=2) for Co-60 gamma rays. The film was suitable as dosimeters for the parameters measurement of the electron beam on the accelerator.

【 授权许可】

Unknown