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International Journal of Radiation Research، جلد ۱۲، شماره ۴، صفحات ۳۲۵-۳۳۰
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عنوان انگلیسی HVL evaluation of orthovoltage X-ray machine using EGSnrc code of simulation
چکیده انگلیسی مقاله Background: Making use of the orthovoltage machines in Radiotherapy, is one of the routine methods for the treatment of the superficial lesions. In this study, an important determinant of X-ray quality, the HVL (Half Value Layer), has been evaluated. Materials and Methods: The HVLs of a orthovoltage X-ray machine in 120 and 180 kVp are measured, using an empirical method, in which the HVLs are derived from the absorption curves. The measured HVLs are compared with calculated (Monte Carlo simulation) HVLs. Using the BEAMDP code of simulation, the output spectra are obtained and employed for the measurement of the HVLs. Results: Comparing the calculated and measured HVL values, the results show that the highest and lowest differences between the two are 4.96% and 2.27%, respectively, which are, in fairly good agreement with those obtained in the former studies. Conclusion: This study shows that the EGSnrc simulation code is capable of being used for the extraction of the quality indices for the superficial X-ray radiotherapy machines. It seems that, the mentioned code, with the mentioned experimental method, can be employed as a routine clinical test tool for every superficial radiotherapy department.
کلیدواژه‌های انگلیسی مقاله HVL, EGSnrc, MC simulation, orthovoltage machine
نویسندگان مقاله a شبستانی منفرد | a shabestani monfared
biochemistry and biophysics deptartment, babol university of medical sciences, shahid rajaee oncology hospital, babolsar, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (Babol university of medical sciences)

t الهویردی پورفلاح | t allahverdi pourfallah
biochemistry and biophysics department, faculty of medicine, mazandaran university of medical sciences, sari, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مازندران (Mazandaran university of medical sciences)

h باباپور | h. babapour
nuclear engineering department, azad islamic university- sciences and researches branch, tehran, iran


علیرضا شیرازی | a r shirazi
medical physics department, faculty of medicine, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نشانی اینترنتی http://www.ijrr.com/browse.php?a_code=A-10-1-523&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Radiation Biology
نوع مقاله منتشر شده تحقیق بدیع
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