Results 161 to 170 of about 13,336 (205)

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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Performances of large volume p-type HPGe detectors

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1989
The performances of large volume (about 350 cm3 and relative efficiency greater than 75%) p-type HPGe detectors are reported. The response function to γ-rays up to 11.67 MeV, the energy dependence of the full energy detection efficiency and the timing properties have been measured.
BELLIA, Giorgio Concetto, A. DEL ZOPPPO, C. AGODI, R. ALBA, R. CONIGLIONE, E. MIGNECO, RUSSO, Giuseppe, P. SAPIENZA   +7 more
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Performance of a segmented HPGe detector at KRISS

Applied Radiation and Isotopes, 2018
A 24 segmented HPGe coaxial detector was set up with a digitized data acquisition system (DAQ). The DAQ was composed of a digitizer (5 × 107sampling/s), a Field-Programmable Gate Array (FPGA), and a real time operating system. The Full Width Half Maximum (FWHM), rise time, signal characteristics, and spectra of a 137Cs source were evaluated.
Jubong, Han, K B, Lee, Jong-Man, Lee, S H, Lee, Tae Soon, Park, J S, Oh   +5 more
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Development of a rugged HPGe detector

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1986
Abstract A rugged HPGe detector capable of taking high resolution data in a vibrational environment has been developed. The objectives included a detector with 35% gamma efficiency and 1.90 keV energy resolution (both quantities measured at 1332.5 keV), a dewar with a capacity of 1.2 l and a hold time of 24 h.
Louis A. Beach, Gary W. Phillips
openaire   +1 more source

Segmented HPGe Detector for Nuclear Reactions Research

IEEE Transactions on Nuclear Science, 2021
In this article, development results from a new p-type high-purity germanium (HPGe) detector with a segmented n+-region are presented. The intended detector is used in spectrometry; however, its sixfold segmentation allows for the determination of the direction of individual photons emitted in the nuclear reactions from a source placed inside the ...
Alexander Sokolov, Vladimir Kondratjev, Rais Nurgalejev, Vladimir Gostilo, Viktor Brudanin, Dmitry Ponomarev, Sergey Rozov, Evgeny Yakushev   +7 more
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Modelling orthogonal strip HPGe detector systems

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2007
Abstract The development of orthogonal planar strip high purity germanium (HPGe) detectors offers the advantages of good energy and three dimensional spatial resolution of photon interactions. The use of such devices for Positron emission Tomography (PET) are being investigated by the SmartPET collaboration.
Paul R. Smith, Andrew Berry, Toby E. Beveridge, Chris J. Hall, John E. Gillam, Greg Potter, Paul J. Nolan, Robert A. Lewis   +7 more
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HPGe virtual point detector for radioactive disk sources

Applied Radiation and Isotopes, 2007
Validity of the model of a virtual point detector (implying existence of a point where all interactions virtually occur) was confirmed for measurements of radioactive disk sources with HPGe detectors. The existing correlation of the count rates with the distance between the virtual plain detector and the detector face makes it possible to inter- and ...
Z B, Alfassi, N, Lavi, O, Presler, V, Pushkarski   +3 more
openaire   +2 more sources