Download or read book Calibration of a Spontaneous Fission Neutron Source written by R. Richmond and published by . This book was released on 1956 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calibration of a Spontaneous Fission Neutron Source written by Atomic Energy Research Establishment (Harwell, England) and published by . This book was released on 1956 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calibration of Spontaneous Fission Neutron Sources written by R. Richmond and published by . This book was released on 1957 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calibration of the Aldermaston 240Pu Spontaneous fission Neutron Source written by P. Fieldhouse and published by . This book was released on 1967 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calibration of a Mock Fission Neutron Source by Indium Resonance Mapping of the Standard Graphite Pile written by C. J. McDole and published by . This book was released on 1956 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calibration of a Ra Be Neutron Source by the B n alpha Li Reaction written by F. G. P. Seidl and published by . This book was released on 1947 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutron Source Strength Calibrations written by E. Dale McGarry and published by . This book was released on 1988 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book LWR Pressure Vessel Surveillance Dosimetry Improvement Program written by E. P. Lippincott and published by . This book was released on 1984 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guidelines on Calibration of Neutron Measuring Devices written by Georg Burger and published by Bernan Press(PA). This book was released on 1988 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of the existing Secondary Standard Dosimetry Laboratories (SSDLs) were established primarily to work with X rays and gamma rays. Neutron sources are, however, increasingly being applied in industrial processes, research, nuclear power development, and radiation biology and medicine. This publication deals primarily with methods of applying radioactive neutron sources for calibration of instrumentation and gives an indication of the space, manpower and facilities needed to fulfil the minimum requirements of a calibration laboratory for neutron work. Its intention is to serve as a guide for centres about to start on neutron dosimetry standardization and calibration.

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:

Download or read book The Detection of Fissionable Materials by Nondestructive Means written by Rudolph Sher and published by . This book was released on 1980 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication summarizes the underlying principles of the most common nondestructive methods of detection and assay of fissionable materials. Various devices are described to illustrate typical applications of these methods.

Download or read book A NEW MEASUREMENT OF THE NEUTRON MULTIPLICITY EMITTED IN 252Cf SPONTANEOUS FISSION written by Adam Hansell and published by . This book was released on 2020 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Precision Reactor Oscillation and SPECTrum (PROSPECT) experiment was designed to probe short baseline oscillations of electron antineutrinos in search of eV-scale sterile neutrinos and precisely measure the 235U reactor antineutrino spectrum from the High Flux Isotope Reactor (HFIR) at Oak Ridge national Laboratory (ORNL). The PROSPECT antineutrino detector (AD) provided excellent background rejection due to its segmented design and use of 6Li-loaded liquid scintillator for a neutron capture target. By tracking the neutron capture lifetime from cosmogenic neutrons and a 252Cf neutron source, we suspect the 6Li content of our scintillator changed over time. We look at this evolution and uncertainty in the PROSPECT oscillation and spectrum analyses. Additionally, the 252Cf source data taken with the PROSPECT AD for detector calibrations are used to make a new measurement on the neutron multiplicity probability distribution emitted during spontaneous fissions, with an average multiplicity of 3.81 ± 0.05 neutrons per fission.

Download or read book Calibration and Related Measurement Services of the National Bureau of Standards written by and published by . This book was released on 1982 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Calibration of a Radium alpha N Beryllium Neutron Source written by Pieter Willem Fredrik Louwrier and published by . This book was released on 1966 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Active Nondestructive Assay of Nuclear Materials written by Tsahi Gozani and published by . This book was released on 1981 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Spectra of Radioactive Neutron Sources written by Hermanus Pauw and published by . This book was released on 1970 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Physics Investigation of Deadtime Losses in Neutron Counting at Low Rates with Cf252 written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 252Cf spontaneous fission sources are used for the characterization of neutron counters and the determination of calibration parameters; including both neutron coincidence counting (NCC) and neutron multiplicity deadtime (DT) parameters. Even at low event rates, temporally-correlated neutron counting using 252Cf suffers a deadtime effect. Meaning that in contrast to counting a random neutron source (e.g. AmLi to a close approximation), DT losses do not vanish in the low rate limit. This is because neutrons are emitted from spontaneous fission events in time-correlated 'bursts', and are detected over a short period commensurate with their lifetime in the detector (characterized by the system die-away time,?). Thus, even when detected neutron events from different spontaneous fissions are unlikely to overlap in time, neutron events within the detected 'burst' are subject to intrinsic DT losses. Intrinsic DT losses for dilute Pu will be lower since the multiplicity distribution is softer, but real items also experience self-multiplication which can increase the 'size' of the bursts. Traditional NCC DT correction methods do not include the intrinsic (within burst) losses. We have proposed new forms of the traditional NCC Singles and Doubles DT correction factors. In this work, we apply Monte Carlo neutron pulse train analysis to investigate the functional form of the deadtime correction factors for an updating deadtime. Modeling is based on a high efficiency 3He neutron counter with short die-away time, representing an ideal 3He based detection system. The physics of dead time losses at low rates is explored and presented. It is observed that new forms are applicable and offer more accurate correction than the traditional forms.