کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1884283 | 1043334 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Online neutron fluence measurement at University Hospital Essen neutron therapy facility using gallium arsenide LEDs
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The detector and sensor group of the West German Proton Therapy Centre (WPE) has developed a novel real-time neutron fluence monitor based on tiny, inexpensive, commercially available GaAs-LEDs. The linear detection range for d(14)+Be neutrons was evaluated to be 5.0Â ÃÂ 108-2.0Â ÃÂ 1011Â neutron.cmâ2. However, this monitor can be used universally for neutrons of any energy distribution. Using scaling factors, fluence calibration curves for 1Â MeV and 14Â MeV D+T fusion neutrons have been calculated. The sensitivity of the detector increases with increasing neutron energy. This makes it suitable for the detection of high-energy neutrons, providing an extra advantage for use at a proton therapy facility where there is a high proportion of high-energy neutrons. The detector is practically not sensitive to photons. A prototype of the online GaAs-LED based neutron fluence monitor has been tested successfully at University Hospital Essen neutron therapy facility and will be implemented at WPE in the near future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 46, Issue 12, December 2011, Pages 1761-1764
Journal: Radiation Measurements - Volume 46, Issue 12, December 2011, Pages 1761-1764
نویسندگان
R. Hentschel, B. Mukherjee, J. Lambert, W. Deya, J. Farr,