Gamma-ray spectrometry
Advanced gamma-ray spectrometry for environmental radioactivity monitoring
... through gamma-ray spectrometry with HPGe ...produce gamma-ray spectrometers supported by special automatic sample changers which can process some tens of samples without any human ...
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Quantification of uranium-238 in environmental samples using gamma-ray spectrometry
... using gamma-ray spectrometry, some of its assets being easy sample preparation and comprehensive data for many radionu- clides in one ...by gamma-ray spectrometry. One mainly ...
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The impact of coincidence summing corrections in the gamma-ray spectrometry analysis of uncontaminated surface soils
... In this research, the primary concern is low level pri- mordial radiation (low counting rate, i.e < 100 counts/sec) from uncontaminated areas measured in contact with the detector, hence only cascade sum- ming is of ...
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Gamma-ray spectrometry across the Upper Devonian basin succession at Kowala in the Holy Cross Mountains (Poland)
... 2003. Gamma-ray spectrometry across the Upper Devonian basin succession at Kowala in the Holy Cross Mountains ...using gamma-ray spectrometry, for investigating the changes of ...
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Assessment of Radiological Contamination of Soils Due to Shipbreaking Using HPGe Digital Gamma Ray Spectrometry System
... Digital Gamma-ray Spectrometry system coupled with a High Purity Germanium (HPGe; Canberra, 40% rela- tive efficiency, ...and gamma peak analysis, ...using gamma spectrometry ...
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Investigation of Failed TRISO Fuel Assay Using Gamma-Ray Spectrometry
... Fig. 1.3 Fission Product Monitoring System Detectors with Shield and Liquid Nitrogen Dewar There are several impediments to accurate collection of data in the AGR-1 experiment. While most isotopes of Kr and Xe will ...
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Muon interaction with lead shielding producing activation: implications for gamma-ray spectrometry
... GEANT4 simulation runs show for each activation the corresponding 411.802 keV gamma energy demonstrating the main branch intensity. Two competing rates exist in measuring radioactivity, the activation rate and ...
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Consultant s Meeting on Total Absorption Gamma-ray Spectrometry (TAGS) measurements
... • Complete Table of priority nuclides for TAGS measurements for Decay heat calculations (U/Pu, Th/U fuels) and anti-neutrino spectra was produced. • Despite the significant efforts made[r] ...
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Gretel, A Computer Program for Gamma Ray Spectrometry with Ge (Li) Detectors EUR 5117
... The program performs the quantitative analysis of gamma-ray spectra obtained by Ge(Li) detectors, using special "oriented libraries," which are prepared for [r] ...
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Effect of flash flood on uranium-series disequilibrium and groundwater residence time using gamma ray spectrometry
... γ-ray spectrometry (Simpson and Grün, 1998). A non-destructive, gamma-spectrometric method for uranium age-dating is presented which is applicable to material of any physical form and geometrical ...
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Material screening by means of low-level gamma ray spectrometry with the Dortmund Low Background HPGe Facility
... α spectrometry instead. In contrast to γ ray spectrometry α spec- trometry uses very thin samples of low mass, since the range of α particles is very ...γ ray spectrometry so that ...
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Measurements of levels of natural radionuclides in the soil in Zuwaye, and Shashamene area, Ethiopia, using gamma ray spectrometry
... to gamma radiation depend primarily on the geological and geographical conditions, and appear at different levels in the soil of each region in the world Cosmogenic radionuclides are produced by the interaction ...
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Gamma-ray satellites Fermi Gamma-ray Space Telescope
... Test how gamma-ray photons of different energy interact in the tracker / calorimeter. http://fermi.sonoma.edu/multimedia/latsim/simulator.php.[r] ...
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Gamma Ray Bursts
... Key open issues prior to the Swift and Fermi era included: (1) the origin of short GRBs, (2) the nature of the high energy radiation from GRBs, (3) the redshift distribution of bursts[r] ...
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Gamma-Ray Pulsars
... 4. Emission Characteristics 4.1. Lightcurves The regular brightness variation of pulsars (’lightcurves’), with periods ranging from ∼ ms to nearly 10s, was the pri- mary characteristic of this new astrophysical object. ...
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Gamma Ray Spectroscopy
... p = f p ′ (6) Values for f for various sources is given in the section on nuclear decay or in reference books. From the spreading out of the gammas we should expect p ′ to decrease as the detector- source distance ...
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Central engine memory of gamma-ray bursts and soft gamma-ray repeaters
... 1. INTRODUCTION In astronomy, light curves usually carry the informa- tion about the central objects. In stably rotating neu- tron star systems (e.g. radio pulsars and X-ray pul- sars), strict periodicity is ...
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Medium-Energy Gamma-Ray Astrophysics with the 3-DTI Gamma-Ray Telescope
... future gamma-ray telescope with greatly improved sensitivity by increasing the overall aperture and effectively addressing background ...these gamma-rays are both extended & point-like, transient & ...
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Precision Measurements of High-Energy Cosmic Gamma-Ray Emission with the GAMMA-400 Gamma-Ray Telescope
... The top detector AC top is a two-layer detector from plastic scintillator BC-408. The upper layer consists of ten strips; the bottom layer consists of 11 strips parallel to the upper layer; the slits between the strips ...
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Improvements on Low Level Activity Gamma Measurements and X-ray Spectrometry at the CEA-MADERE Measurement Platform
... In order to reduce this parasite contribution to a minimum, a collimator element was added. The collimator, made of tantalum (Ta), has disc geometry and is placed between the sample and the detector window. Diffused ...
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