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CALIBRATION OF GMX HPGe DETECTOR WITH NBS REFERENCE SOURCE

Journal of Research in Physics, 2003
Bikit, Ištvan, Slivka, Jaroslav, Vesković, Miroslav, Mrđa, Dušan, Todorović, Nataša, Varga, Ervin, Conkic, Ljiljana, Forkapić, Sofija   +7 more
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Annealing restoration of HPGe detector

Radiation Detection Technology and Methods, 2020
HPGe detector is used widely, its property is affected by neutron. Annealing to the germanium crystal is a good approach to recover the detector. To raise the temperature of germanium crystal to recover the resolution for the HPGe detector. A special copper ingot is designed and manufactured to increase the heating efficiency.
Jianyong Zhang, Xiaohu Mo, Xiao Cai
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Passivation of HPGe detectors

Instruments and Experimental Techniques, 2009
Protective oxide coating of p-n junctions in HPGe detectors is investigated. Owing to this coating, HPGe detectors can be used, in particular, in liquid nitrogen environment without capsulation. A simple and practically feasible method for forming the protective layer by processing detectors in methanol is described.
Yu. B. Gurov, V. S. Karpukhin, S. V. Rozov, V. G. Sandukovsky, D. Borowicz, J. Kwiatkowska, B. Rajchel, J. Yurkowski   +7 more
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Low background shielding of HPGe detector

Applied Radiation and Isotopes, 2009
National Radiation Protection Institute in Prague is equipped with 14 HPGe detectors with relative efficiency up to 150%. Steel shielding with one of these detectors (relative efficiency 100%) was chosen to be rebuilt to decrease minimum detectable activity (MDA).
L, Trnková, P, Rulík
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Low-temperature HPGe detectors

Czechoslovak Journal of Physics, 1996
Several planar HPGe detectors with sensitive thickness ranging from 1.2 to 7.3 mm were produced by relatively simple technology using vacuum evaporation and diffusion and repeatedly tested at LHe temperature. Good reproducibility and stable performance of detectors was observed and the resolution for both conversion electrons and γ-rays at 5 K did not ...
Dalibor Zákoucký, Dušan Srnka, Jaromír Šlesinger, Drahoslav Vénos, Josef Stehno   +4 more
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Off-center efficiency of HPGe detectors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2002
The gamma ray detection efficiency of two HPGe detectors for off-center points was measured both on the detector's cap and outside the detector's cap. It was found that similar to measurements on the detector symmetry axis, for off-center measurements including those outside the detector cap also, the detector could be treated as an effective point ...
O. Presler, O. Peled, U. German, Y. Leichter, Z.B. Alfassi   +4 more
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Risetime measurement of HPGe detector pulses

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1987
Abstract A new method of measuring the risetime and its distribution of HPGe detector pulses using only one fast comparator, a delay line shorted at one end and a few discrete components is described. Setting 10% and 90% of the pulse height is easier and definite. The calibration procedure is also simple.
Suvendu Bose, Mihir B. Chatterjee, Bedanta K. Sinha, Rangalal Bhattacharya   +3 more
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HPGe detector preamplifier output pulse simulator

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1989
Abstract The pulse simulator described here can be used to simulate the output pulses of a large HPGe detector preamplifier combination. A number of such simulators can be used to obtain pulses having a fixed time origin but with randomly varying risetime.
Suvendu Bose, Rangalal Bhattacharya
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Method applied for the HPGe detector

2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA), 2013
Gamma ray spectrometry is a passive non destructive assay most commonly used to identify and quantify the radionuclides present in the complex huge objects such as nuclear waste packages. The treatment of spectra from the measurement of nuclear waste is performed in two steps: the first step is to extract the raw data from the spectra (energies and net
Nicolas Guillot, Mathieu Monestier, Nicolas Saurel   +2 more
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Timing properties of coaxial HPGe detectors

Nuclear Instruments and Methods, 1978
Abstract The dependence of the timing characteristics of a true coaxial HPGe detector on bias has been determined. Optimum performance of 2.0 ns fwhm and 4.25 ns fwtm was obtained at a bias just above the depletion voltage. The general variation of timing characteristics is compared with the results of a model of the pulse generation process in the ...
B.C. Robertson, H.L. Malm
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