Flux And Spectral Measurements Of Primary And Moderated Neutron Sources

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Flux and Spectral Measurements of Primary and Moderated Neutron Sources

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Author : E. Tochilin
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Flux and Spectral Measurements of Primary and Moderated Neutron Sources by : E. Tochilin

Download or read book Flux and Spectral Measurements of Primary and Moderated Neutron Sources written by E. Tochilin and published by . This book was released on 1962 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radioactive (a, n) neutron sources include Ra-Be, PuF4, and four PuBe13 sources. Comparative neutron emission rates were determined by two separate methods: (1) the manganese sulfate bath with appropriate corrections made for fast neutron escape or capture and for thermal neutron capture by the source; and (2) long counter measurements corrected for energy response and so rce anisotropy. Agreement to within 1 percent was obtained by the two independent methods. A Ra-Be source calibrated against the NBS neutron standard was used as a primary reference Spectral measurements of PuBe13 and PuF4 neutron sources were made with nuclear emulsions. By the use of cylindrical plastic and lead absorbers, an effort was made to moderate the PuBe13 spectrum and thereby obtain additional calibration points for instrument response studies. Spectral changes were initially studied with the doublemoderator technique, followed by later measurements with nuclear emulsions. From flux and spectral measurements of the primary and moderated radioactive sources, the first collision tissue dose was calculated and, in turn, compared to experimental measurements of absorbed dose with proportional counters designed according to the Bragg-Gray principle. (Author).

Measurement of Neutron Flux and Spectra for Physical and Biological Applications

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Author : National Committee on Radiation Protection and Measurements (U.S.)
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (37 download)

Book Synopsis Measurement of Neutron Flux and Spectra for Physical and Biological Applications by : National Committee on Radiation Protection and Measurements (U.S.)

Download or read book Measurement of Neutron Flux and Spectra for Physical and Biological Applications written by National Committee on Radiation Protection and Measurements (U.S.) and published by . This book was released on 1960 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Measurement of Neutron Flux and Spectra for Physical and Biological Applications

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Author : National Committee on Radiation Protection and Measurements (U.S.)
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Measurement of Neutron Flux and Spectra for Physical and Biological Applications by : National Committee on Radiation Protection and Measurements (U.S.)

Download or read book Measurement of Neutron Flux and Spectra for Physical and Biological Applications written by National Committee on Radiation Protection and Measurements (U.S.) and published by . This book was released on 1960 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Measurement of Neutron Flux and Spectra for Physical and Biological Applications

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Author : United States. National Committee on Radiation Protection and Measurements
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (31 download)

Book Synopsis Measurement of Neutron Flux and Spectra for Physical and Biological Applications by : United States. National Committee on Radiation Protection and Measurements

Download or read book Measurement of Neutron Flux and Spectra for Physical and Biological Applications written by United States. National Committee on Radiation Protection and Measurements and published by . This book was released on 1960 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elements of Slow-Neutron Scattering

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Author : J. M. Carpenter
Publisher : Cambridge University Press
ISBN 13 : 0521857813
Total Pages : 539 pages
Book Rating : 4.5/5 (218 download)

Book Synopsis Elements of Slow-Neutron Scattering by : J. M. Carpenter

Download or read book Elements of Slow-Neutron Scattering written by J. M. Carpenter and published by Cambridge University Press. This book was released on 2015-09-24 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and up-to-date introduction to the fundamental theory and applications of slow-neutron scattering.

Double Moderator Neutron Dosimeter

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Author : J. De Pangher
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Double Moderator Neutron Dosimeter by : J. De Pangher

Download or read book Double Moderator Neutron Dosimeter written by J. De Pangher and published by . This book was released on 1958 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Measurement of Neutron Flux and Spectra for Physical and Biological Applications

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Author : National Committee on Radiation Protection and Measurements (U.S.)
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.F/5 ( download)

Book Synopsis Measurement of Neutron Flux and Spectra for Physical and Biological Applications by : National Committee on Radiation Protection and Measurements (U.S.)

Download or read book Measurement of Neutron Flux and Spectra for Physical and Biological Applications written by National Committee on Radiation Protection and Measurements (U.S.) and published by . This book was released on 1960 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Neutron Spectra from Mock Fission Sources

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Author : Eugene Tochilin
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Neutron Spectra from Mock Fission Sources by : Eugene Tochilin

Download or read book Neutron Spectra from Mock Fission Sources written by Eugene Tochilin and published by . This book was released on 1958 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Target Station Optimization for the High-Brilliance Neutron Source HBS

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Author : Jan Philipp Dabruck
Publisher : Springer
ISBN 13 : 3030056392
Total Pages : 190 pages
Book Rating : 4.0/5 (3 download)

Book Synopsis Target Station Optimization for the High-Brilliance Neutron Source HBS by : Jan Philipp Dabruck

Download or read book Target Station Optimization for the High-Brilliance Neutron Source HBS written by Jan Philipp Dabruck and published by Springer. This book was released on 2018-12-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the present work, the target station of the accelerator-driven neutron source HBS is optimized in comprehensive parameter studies using the Monto-Carlo method. The dependence of the most important performance characteristics of such a system on the external parameters is investigated neglecting technical and mechanical limitations. In this way, qualitative and quantitative statements for all possible configurations and envisaged applications can be derived and should be considered in the detailed planning of such facilities. For this purpose, different scenarios are considered that place completely different requirements on the design of the target station. The central statements derived in this thesis can be transferred to any framework conditions, such as different accelerator energies, so that these results can be used in the development of other neutron sources, which together with the HBS form a European network and provide a prosperous community in neutron science.

A High-energy Neutron Flux Spectra Measurement Method for the Spallation Neutron Source

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Author : Nicholas Patrick Luciano
Publisher :
ISBN 13 :
Total Pages : 157 pages
Book Rating : 4.:/5 (89 download)

Book Synopsis A High-energy Neutron Flux Spectra Measurement Method for the Spallation Neutron Source by : Nicholas Patrick Luciano

Download or read book A High-energy Neutron Flux Spectra Measurement Method for the Spallation Neutron Source written by Nicholas Patrick Luciano and published by . This book was released on 2012 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this work was to develop a foil activation method to measure high-energy (1--120 MeV) neutron flux spectra at the Spallation Neutron Source by researching the scientific literature, assembling an experimental apparatus, performing experiments, analyzing the results, and refining the technique based on experience. The primary motivation for this work is to provide a benchmark for the neutron source term used in target station and shielding simulations Two sets of foil irradiations were performed, one at the ARCS beamline and one at the POWGEN beamline. The gamma radiation of the foil activation products was measured with a high purity germanium gamma-ray spectrometer, and the product reaction rates during irradiation were quantified. Corrections, such as self-shielding factors, were applied to the measurements to account for particular effects. The corrected measurement data, along with calculated response functions and an initial guess spectrum, were input to the MAXED neutron spectrum unfolding computer code. MAXED uses the maximum entropy method to unfold an output spectrum that is the minimally modied guess spectrum consistent with the measurement data. The foil irradiation and subsequent analysis from the ARCS spectrum produced a reasonable neutron spectrum, which noticeably differed from the initial guess spectrum. This measurement is regarded as consistent, but yet unverified. The gamma-ray spectrum of the foil irradiation at the POWGEN beamline showed no high-energy activation. This is regarded as an experimental error, and no conclusions can be drawn about the high-energy neutron spectrum. Future foil irradiations are planned to verify and expand the neutron spectrum measurements.

Photoneutron Sources

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Author : B. W. Sargent
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Photoneutron Sources by : B. W. Sargent

Download or read book Photoneutron Sources written by B. W. Sargent and published by . This book was released on 1946 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Neutron Spectrum Measurements for Radiation Protection Purposes

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Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

Book Synopsis Neutron Spectrum Measurements for Radiation Protection Purposes by :

Download or read book Neutron Spectrum Measurements for Radiation Protection Purposes written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The energy spectra of low-intensity neutron sources used for calibrating personnel neutron dose-rate meters and dosimeters and for characterizing the neutron fields to which personnel are exposed were measured. Several detector-analyzer systems that will measure in the energy range 50 keV to 20 MeV at intensities from 10−1 to 105 n/cm2-s are described. The systems include NE213 and stilbene organic scintillators as well as H2, 3He, and CH4 proportional counters. Also described are pulse-height analysis and pulse-shape discrimination systems. An unfolding code, NUTSPEC, reduces the pulse-height data to an absolute differential neutron flux phi(E) for the above detectors. The code uses a derivative unfolding method for the scintillation detectors, and for the proportional counters it calculates a response matrix and uses an iterative unfolding method to determine phi(E). The unfolded flux distribution combined with published conversion factors produces differential neutron dose-equivalent and kerma rates. Spectral segments obtained with different detectors from several measurements merge into a single differential flux spectrum over the range 50 keV to 20 MeV, together with the corresponding differential kerma and neutron dose-equivalent distributions. Also reported are spectrum measurements near 252Cf and 238PuBe sources with various moderators.

Neutron Generators for Analytical Purposes

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Author : International Atomic Energy Agency
Publisher : IAEA Radiation Technology Repo
ISBN 13 : 9789201251107
Total Pages : 145 pages
Book Rating : 4.2/5 (511 download)

Book Synopsis Neutron Generators for Analytical Purposes by : International Atomic Energy Agency

Download or read book Neutron Generators for Analytical Purposes written by International Atomic Energy Agency and published by IAEA Radiation Technology Repo. This book was released on 2012 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication addresses recent developments in neutron generator (NG) technology. It presents information on compact instruments with high neutron yield to be used for neutron activation analysis (NAA) and prompt gamma neutron activation analysis in combination with high count rate spectrometers. Traditional NGs have been shown to be effective for applications including borehole logging, homeland security, nuclear medicine and the on-line analysis of aluminium, coal and cement. Pulsed fast thermal neutron analysis, as well as tagged and timed neutron analysis, are additional techniques which can be applied using NG. Furthermore, NG can effectively be used for elemental analysis and is also effective for analysis of hidden materials by neutron radiography. Useful guidelines for developing NG based research laboratories are also provided in this publication.

Sources, Fields, Measurements, and Applications

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Author : Frank H. Attix
Publisher : Academic Press
ISBN 13 : 1483216217
Total Pages : 965 pages
Book Rating : 4.4/5 (832 download)

Book Synopsis Sources, Fields, Measurements, and Applications by : Frank H. Attix

Download or read book Sources, Fields, Measurements, and Applications written by Frank H. Attix and published by Academic Press. This book was released on 2013-10-22 with total page 965 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation Dosimetry, Second Edition, VOLUME III: Sources, Fields, Measurements, and Applications covers the significant aspects of radiation dosimetry. The book discusses dosimetry relating to x rays and teleisotope gamma rays, discrete and distributed alpha-, beta-, and gamma-ray sources, electron beams, and heavy charged particle beams. The text also describes dosimetry relating to reactors, neutron and mixed n-gamma fields, neutrons from accelerators and radioactive sources, initial and residual ionizing radiation from nuclear weapons, natural and man-made background radiation, radiation in space, ultra-high energy radiation, and uncommon types of particles. Dosimetry relating to health physics, diobiology, radiotherapy, implant and intracavitary therapy, ""transition-zones"" (especially at bone-tissue interfaces), and radiation processing is also considered. Physicists, biophysicists, and people involved in radiological science will find the book invaluable.

Neutron Flux and Spectra Measurements in the Void Tank of the TRIGA Mark-F Reactor

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Author : K. C. Humpherys
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Neutron Flux and Spectra Measurements in the Void Tank of the TRIGA Mark-F Reactor by : K. C. Humpherys

Download or read book Neutron Flux and Spectra Measurements in the Void Tank of the TRIGA Mark-F Reactor written by K. C. Humpherys and published by . This book was released on 1962 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Measurement of Neutron Flux and Spectra for Physical and Biological Applications

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Author : National Committee on Radiation Protection and Measurements (U. S.)
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (995 download)

Book Synopsis Measurement of Neutron Flux and Spectra for Physical and Biological Applications by : National Committee on Radiation Protection and Measurements (U. S.)

Download or read book Measurement of Neutron Flux and Spectra for Physical and Biological Applications written by National Committee on Radiation Protection and Measurements (U. S.) and published by . This book was released on 1960 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nuclear Science Abstracts

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Author :
Publisher :
ISBN 13 :
Total Pages : 912 pages
Book Rating : 4.0/5 ( download)

Book Synopsis Nuclear Science Abstracts by :

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-05 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: