Objective To investigate the safety, acceptance and the effective extent of 192Ir-internal irradiation, providing theoretical guidelines for HC.

Objective To analyze the validity of ~(192)Ir high dose rate(HDR) afterloading plus external irradiation in treatment of the carcinnoma of cervix-uteri and related factors of the outlook.

Trial of External Radiotherapy and ~(192)Ir Brachytherapy in Cervical Cancer;

DNA Damage Induced by Radionuclide Internal Irradiation.;

Systematic and comprehensive understanding isachieved in many aspects like the protection emphasis on tritium gas contactors, the mostpreferable measurement for the protection of tritium gas internal irradistion toxicity, the particular law of tritium gas internal irradiation dosage monitoring, and the principal involvedorgans of tritium-induced non-random radiative effects, etc.

Methods Every MTS was placed in every hole of 96 holes plate, in the same time after 24 hours of internal irradiation with 15 Gy of Na 2H 32PO 4 was done, another group of MTS were received 15 Gy of 6 MV external irradiation produced by liner accelerator, with the radiation rate 2 Gy/mi.

Comparison and application of variance-reduction techniques used in internal radiation dose calculations for small organs;

From the accumulation of these elements in brain, eyes, testes and skeleton, the biological effects of low dosage RE for long attract and internal radiation of natural radioactivity in the RE were investigated.

Using it,we develop a software by Monte Carlo to calculate the internal radiation dose.