Dose enhancement in a room cobalt-60 source
نویسندگان
چکیده
منابع مشابه
New formula for Calculation of Cobalt-60 Percent Depth Dose
Introduction: On the basis of percent depth dose (PDD) calculation, the application of dosimetry in radiotherapy has an important role to play in reducing the chance of tumor recurrence. The aim of this study is to introduce a new formula for calculating the centeral axis percent depth doses of Cobalt-60 beam. Materials and Methods: In the present study, based on ...
متن کاملDose measurement of cobalt-60 radiotherapy beams in treatment fields.
BACKGROUND Radiation-therapy is a complex process with multiple steps, each of which has an impact on the quality of treatment. Accurate dosimetry is a critical step during the radiotherapy of cancer patients.The aim of the present study was to measure and evaluate the doses of two cobalt- 60 (60Co) teletherapy units GWXJ80 of NPIC China and Theratron 780 of AECL Canada at various points within...
متن کاملHigh Dose Rate Brachytherapy in the Treatment of cervical cancer: preliminary experience with cobalt 60 Radionuclide source—A Prospective Study
UNLABELLED Iridium-192 is widely used for high-dose rate brachytherapy. Co-60 source with similar geometric and dosimetric properties are now available. It has a longer half life but higher energy than Iridium-192. If Co-60 source can produce similar results, it will be more economical for low resource settings. OBJECTIVE To evaluate the acute gastrointestinal and genitourinary toxicity assoc...
متن کاملnew formula for calculation of cobalt-60 percent depth dose
introduction: on the basis of percent depth dose (pdd) calculation, the application of dosimetry in radiotherapy has an important role to play in reducing the chance of tumor recurrence. the aim of this study is to introduce a new formula for calculating the centeral axis percent depth doses of cobalt-60 beam. materials and methods: in the present study, based on ...
متن کاملMonte Carlo calculation of shielded colpostat effect on rectum received dose in high dose rate brachytherapy with Cobalt-60 sources
Background: In the current study the effect of shielded colpostat on rectum received dose was calculated in cervical brachytherapy using Monte Carlo (MC) method. Materials and Methods: Two 60Co sources of GZP6 brachytherapy unit used for intracavitary treatments were simulated using MCNPX Monte Carlo code. Also the two types of colpostats including shielded and unshielded were simulated inside ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 1997
ISSN: 0018-9499,1558-1578
DOI: 10.1109/23.658990