کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1824853 1027346 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Aluminum as a source of background in low background experiments
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Aluminum as a source of background in low background experiments
چکیده انگلیسی

Neutrinoless double beta decay would be a key to understanding the nature of neutrino masses. The next generation of High Purity Germanium experiments will have to be operated with a background rate of better than 10−5 counts/(kg y keV) in the region of interest around the Q-value of the decay. Therefore, so far irrelevant sources of background have to be considered. The metalization of the surface of germanium detectors is in general done with aluminum. The background from the decays of 22Na, 26Al, 226Ra and 228Th introduced by this metalization is discussed. It is shown that only a special selection of aluminum can keep these background contributions acceptable.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 647, Issue 1, 11 August 2011, Pages 39–45
نویسندگان
, , , ,