کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1882393 1533529 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photon-induced positron annihilation lifetime spectroscopy using an S-band compact electron linac
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Photon-induced positron annihilation lifetime spectroscopy using an S-band compact electron linac
چکیده انگلیسی

A new photon-induced positron annihilation lifetime spectroscopy approach has been developed using an S-band compact electron linac at the National Institute of Advanced Industrial Science and Technology (AIST). The high energy (<42MeV), intense (105 photons pulse−1), and ultra-short pulse (3 ps pulse width) photon beam creates positrons throughout an entire sample via pair production. A positron lifetime spectrum can be obtained by measuring the time difference between the accelerator's RF frequency and the detection time of the annihilation gamma rays. The positron lifetimes for lead and yttria-stabilized zirconia samples have been successfully measured.


► Photon-induced positron annihilation lifetime spectrometer has been developed.
► Defect analysis for thick materials is possible by using our spectrometer.
► The positron lifetime for a lead and a YSZ has been successfully measured.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 95, February 2014, Pages 30–33
نویسندگان
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