(99m)Tc Generator Safety Simulation Based on GEANT4.
- Author:
Sung Koo KANG
1
;
Dong Hyun HAN
;
Chong Yeal KIM
Author Information
1. Department of Radiation Science & Technology, Chonbuk National University, Korea. kimbo@chonbuk.ac.kr
- Publication Type:Original Article
- Keywords:
GEANT4;
(99m)Tc Generator;
Domestic regulations on radiation safety
- MeSH:
Nuclear Family;
Nuclear Medicine;
Radioactivity;
Radioisotopes
- From:Korean Journal of Medical Physics
2008;19(1):1-8
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Technisium ((99m)Tc) is one of the most widely used radioactive isotopes for diagnosis in nuclear medicine. In general, technisium is produced inside the so called (99m)Tc generator which is usually made out of lead to shield relatively high energy radiation from (99)Mo and its daughter nuclide (99m)Tc. In this paper, a GEANT4 simulation is carried out to test the safety of the (99m)Tc generator, taking the Daiichi product with radioactivity of 500 mCi as an example. According to the domestic regulation on radiation safety, the dose at 10 cm and 100 cm away from the surface of shielding container should not exceed 2.0 mSv/h and 0.02 mSv/h, respectively. The simulated dose turned out to be less than the limit, satisfying the domestic regulation.
