| GUO Zhao-hui,CHENG Jin-sheng,PENG Jian-liang,et al.TLD international intercomparision of secondary dosimetry standard for radiotherapy level in 2005[J].Chinese Journal of Radiological Medicine and Protection,2007,27(2):181-182 |
| TLD international intercomparision of secondary dosimetry standard for radiotherapy level in 2005 |
| Received:April 04, 2006 |
| DOI： |
| KeyWords:International intercomparision TLD Absorbed dose Secondary dosimetry standard |
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| Abstract:: |
| Objective To check the consistency of SSDL radiotherapy dose level standard and international standard, SSDL in our institute participated in TLD international intercomparision organized by IAEA/WHO. Methods SSDL irradiated the TLDs posted by IAEA and caculated the dose to be delivered to the TLDs, then returned the TLDs and results to IAEA dosimetry laboratory. IAEA gave the diviation of intercomparision. Results The deviation for 60Co is -1.4%,and the deviation for high energy X rays is -1.8%. Conclusions The requirement of deviation between IAEA and SSDL should be no more than ±3.5%.Therefore the results of this intercomparison are considered satisfactory. |
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