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  • 28 March 1998 Volume 7 Issue 1
      
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  • THE PROGRAMME OF WORK OF COMMITTEE 2 OF ICRP ON INTERNAL DOSIMETRY
    John W Stather, Chen Xingan
    1998, 7(1): 1-8.
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    Committee 2 of the International Commission on Radiological Protection has the responsibiliy for establishing secondary standards based on the Commission's recommended dose limits.The Committee has an ongoing programme of work on internal dosimetry which encompasses the development of dosimetric models and dose coefficients for the workforce and for various age groups in the population.This paper summarises the overall programme of work and considers future issues for the Committee.
  • Radiation Exposure to Patients during Pediatric Cardiac Catheterization
    Li Lianbo, Kai Michiaki, Kusama Tomoko
    1998, 7(1): 9-11.
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    Radiation doses to patients during pediartric cardiac catheterization were measured using thermoluminescent dosimeters (TLDs) and slab phantom in 18 procedures.The average doses to the left and right thyroids were 8.74 and 13.76 mGy respectively.The average entrance skin dose and effective dose approached 84.7 cGy and 69.9 mSv respectively.The average integrated currents used for fluoroscopy and cineangiography procedures were 22.9 and 616.1 mA·min respectively.It is believed that the majority of the doses to the patients normally came from the cineangiography procedure.