2 edition of [Simulation of gamma-ray spectra for a variety of user-specified detector designs found in the catalog.
[Simulation of gamma-ray spectra for a variety of user-specified detector designs
by Constellation Technology Corporation, National Aeronautics and Space Administration, National Technical Information Service, distributor in St. Petersburg, Fl, [Washington, DC, Springfield, Va
Written in English
|Series||NASA contractor report -- NASA CR-197551.|
|Contributions||United States. National Aeronautics and Space Administration.|
|The Physical Object|
Mirion offers high, medium and low-resolution detector systems, signal processing electronics, and gamma spectroscopy software for the qualification and quantification of gamma emitting nuclides. These solutions are used by radiological counting labs in nuclear . By analysing the energy levels of the incoming gamma rays in a channel spectrum, the tool provides the amount of potassium, uranium, and thorium contributing to the total gamma ray count. The results are used in clay volume calculations, clay type analysis, heavy mineral detection, and fracture detection.
Gamma Spectroscopy is the science (or art) of identification and/or quantification of radionuclides by analysis of the gamma-ray energy spectrum produced in a gamma-ray spectrometer. Learn more about this widely used technique in environmental radioactivity monitoring, nuclear medicine and radiopharmaceuticals, health physics personnel monitoring and more. A wide variety of gamma spectrometer options are available to you, There are 1 suppliers who sells gamma spectrometer on , mainly located in Asia. The top countries of supplier is China, from which the percentage of gamma spectrometer supply is % respectively.
GAMMA-SPECTRA Figure 1. - Idealized Picture of Gamma-Ray Spectrum Showing Only the Photopeak SCINTILLATION SPECTRA The Photopeak If you were to place a monoenergetic source of gamma-rays (e.g., Cs) near a scintillation detector, you expect, ideally, a spectrum which is a single photopeak caused by the photoelectric effect in the. There is currently a wide variety of nuclear data that could be used in computer modeling and gamma-ray spectroscopy analysis. The data can be discrepant (with varying uncertainties), and it may difficult for a modeler or software developer to determine the best nuclear data set for a particular situation.
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This report details the progress made in simulating gamma-ray spectra for a variety of user-specified detector designs. In addition, a short discussion of work done in the related areas of pulse shape analysis and the spectral analysis is included.
Get this from a library. [Simulation of gamma-ray spectra for a variety of user-specified detector designs: semiannual technical report, 1 Mar Aug. [United States. National Aeronautics and Space Administration.;]. Simulation of gamma-ray spectra for a variety of user-specified detector designs.
By Jr. Rester. Abstract. The gamma-ray spectrum simulation program BSIMUL was designed to allow the operator to follow the path of a gamma-ray through a detector, shield and collimator whose dimensions are entered by the operator.
It can also be used to Author: Jr. Rester. This report details the progress made in simulating gamma-ray spectra for a variety of user-specified detector designs.[ In addition, a short discussion of work done in the related areas of pulse shape analysis and the spectral analysis is included.
The pulse shape analysis and spectral. [Washington, D.C.: National Aeronautics and Space Administration, ]. 1 microfiche. Header title: Simulation of gamma-ray spectra for a variety of user-specified detector designs.
Description: 1 volume. Series Title: NASA contractor report, NASA CR Other Titles: Simulation of gamma-ray spectra for a variety of user-specified. Gamma-ray (γ-ray) spectroscopy is a quick and nondestructive analytical technique that can be used to identify various radioactive isotopes in a sample.
In gamma-ray spectroscopy, the energy of incident gamma-rays is measured by a detector. In MCNP simulation, F8 tally was used as it gives the energy distribution of pulses created in the detector.
Whenever incident gamma ray enters into detector volume, due to interactions short. Applied Gamma-Ray Spectrometry covers real life application of the gamma-ray and the devices used in their experimental studies.
This book is organized into 9 chapters, and starts with discussions of the various decay processes, the possible interaction mechanisms of gamma radiation with matter, and the intrinsic and extrinsic variables, which affect the observed gamma-ray and X-ray spectra. Gamma ray spectrometry is an analytical method that allows the identification and quantification of gamma emitting isotopes in a variety of matrices.
In one single measurement and with little sample preparation, gamma ray spectrometry allows you to detect. The keV gamma ray is the almost universal choice for uranium enrichment measurements.
The efficiency of most detectors is good in this energy range, the gamma ray is penetrating enough to be detectable through most container walls found in the nuclear industry, and the gamma ray is sufficiently well resolved to produce results with acceptable accuracy and precision in all of the commonly.
Gamma-ray spectroscopy is the quantitative study of the energy spectra of gamma-ray sources, such as in the nuclear industry, geochemical investigation, and astrophysics. Most radioactive sources produce gamma rays, which are of various energies and intensities. When these emissions are detected and analyzed with a spectroscopy system, a gamma-ray energy spectrum can be produced.
The tracking ability of the gamma-ray detector allows ambiguities in the positron emission tomography or SPECT data set to be resolved, which would otherwise cause events to be rejected in a. Gamma-ray spectroscopy is the quantitative study of the energy spectra of gamma-ray sources, in such as the nuclear industry, geochemical investigation, and astrophysics.
Most radioactive sources produce gamma rays, which are of various energies and intensities. • The gain determines the range of gamma ray energies that are seen on the spectrum.
Components of a Gamma Spectroscopy System Amplifier 31 For example, a particular gain might result in a spectrum viewing gamma rays of 20 to keV.
A gamma-ray spectrometer (GRS) is an instrument for measuring the distribution (or spectrum—see figure) of the intensity of gamma radiation versus the energy of each study and analysis of gamma-ray spectra for scientific and technical use is called gamma spectroscopy, and gamma-ray spectrometers are the instruments which observe and collect such data.
This report details the progress made in simulating gamma-ray spectra for a variety of user-specified detector designs. Several simulations were performed with the NEAR detector configuration.
This report also includes a short discussion of work done in the related areas of. Available dual 4” detector model allows for more rapid scanning and favorable comparison to downhole logs. Using an advanced detector and data acquisition routine, Core Laboratories' Spectral Core Gamma Unit offers: total gamma ray recorded in API units; elemental contributions recorded in terms of Potassium (%), Uranium (ppm), and Thorium.
Gamma Spectroscopy Objectives: • To become familiar with the detection of gamma rays using a scintillation-photomultiplier tube detector, associated electronics, and with the pulse height analysis technique for determining gamma ray energies.
• To understand the origin and location of the Compton edge and the backscatter peak in. Key words: Gamma-ray spectrometry, Monte Carlo simulation, efficiency calibration 1. INTRODUCTION The experimental calibration of germanium detectors used in gamma-ray spectrometry  is difficult especially in the case of measurement of samples that cannot be approximated as point sources.
In the context of the task to analyse. Spectroscopy - Spectroscopy - X-ray detectors: The first X-ray detector used was photographic film; it was found that silver halide crystallites would darken when exposed to X-ray radiation. Alkali halide crystals such as sodium iodide combined with about percent thallium have been found to emit light when X-rays are absorbed in the material.
Other articles where Gamma-ray spectroscopy is discussed: gamma ray: Gamma-ray spectroscopy, involving the precise measurement of gamma-ray photon energies emitted by different nuclei, can establish nuclear energy-level structures and allows for the identification of trace radioactive elements through their gamma-ray emissions.
Gamma rays are also produced in the important process of pair.gamma ray off a free electron. Pair production gamma-ray energy (- binding) A fraction of the gamma-ray energy is transferred to the Compton electron If gamma-ray energy is >> 2 m oc2 (electron rest mass keV), a positron-electron can be formed in the strong Coulomb field of a nucleus.
This pair carries the gamma-ray energy minus 2 m oc2.HPGe detector with LN2 cryostat Source: But if a perfect energy resolution is required, we have to use germanium-based detector, such as the HPGe ium-based semiconductor detectors are most commonly used where a very good energy resolution is required, especially for gamma spectroscopy, as well as x-ray gamma spectroscopy, germanium is .