کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1831958 1027507 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of large volume HPGe detectors. Part I: Electron and hole mobility parameterization
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Characterization of large volume HPGe detectors. Part I: Electron and hole mobility parameterization
چکیده انگلیسی
An analytical model for the hole mobility in a Ge crystal lattice was developed to describe the hole drift anisotropy with experimental velocity values along the crystal axis as parameters. The new model is based on the drifted Maxwellian hole distribution in Ge. It is verified by reproducing experimental longitudinal hole anisotropy data with high accuracy. A comparison between electron and hole mobility shows large differences for the longitudinal and tangential velocity anisotropy as a function of the electrical field orientation with respect to the crystal orientation. The anisotropic mobility causes measurable differences on rise times and pulse shapes which vary with the location where the charge carriers are created in the Ge crystal. These effects are relevant for position determination and γ-ray tracking.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 569, Issue 3, 21 December 2006, Pages 764-773
نویسندگان
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