The calculation and measurement of exposure distributions from60Co ophthalmic applicators
| العنوان: | The calculation and measurement of exposure distributions from60Co ophthalmic applicators |
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| المؤلفون: | M. P. Casebow |
| المصدر: | The British Journal of Radiology. 44:618-624 |
| بيانات النشر: | British Institute of Radiology, 1971. |
| سنة النشر: | 1971 |
| مصطلحات موضوعية: | Materials science, business.industry, Eye Neoplasms, Attenuation, Retinoblastoma, Inverse-square law, Radiotherapy Dosage, General Medicine, Cobalt Isotopes, Optics, Maximum depth, Photography, Humans, Radiology, Nuclear Medicine and imaging, Angular dependence, Child, Absorption (electromagnetic radiation), business, Technology, Radiologic, Mathematics |
| الوصف: | The paper discusses the calculation and measurement of exposure distributions from 60Co γ-ray ophthalmic applicators used in the treatment of retinoblastoma in children. Exposures within the eye were calculated assuming an inverse square law attenuation with no absorption. Photographic emulsions were used to measure the exposure distributions, and corrections for depth and angular dependence of film sensitivity and reciprocity failure were estimated. It was found that agreement between calculation and measurement was reasonable except near the applicator surface, where the measured values were thought to be more correct. New values of “design depth”, the maximum depth of tumour each applicator is intended to treat, are presented. |
| تدمد: | 1748-880X 0007-1285 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d094a69e8a5224cbd90bb76fbbcafc1 https://doi.org/10.1259/0007-1285-44-524-618 |
| رقم الأكسشن: | edsair.doi.dedup.....4d094a69e8a5224cbd90bb76fbbcafc1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1748880X 00071285 |
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