Download or read book Calculations for Use with the Fast Neutron Meter written by C. C. Gamertsfelder and published by . This book was released on 1948 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to make the necessary calculations on tolerance dose and to determine the calibration of the neutron meters, the information given here is necessary. The energy of the neutrons, the composition of tissue and of gases in the ionization chambers, the cross sections of the various atoms involved, and the fraction of energy lost per collision must be known.
Download or read book Fast Neutron Counter for Health Physics Measurements written by J. S. Reddie and published by . This book was released on 1950 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fast Neutron Count rate Dosimetry written by George Samuel Hurst and published by . This book was released on 1950 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of the Dosimetry for the Radiation Effects Research Foundation DS86 written by National Research Council and published by National Academies Press. This book was released on 2001-10-04 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Committee on Dosimetry for the Radiation Effects Research Foundation (RERF) was set up more than a decade ago at the request of the U.S. Department of Energy. It was charged with monitoring work and experimental results related to the Dosimetry System 1986 (DS86) used by RERF to reconstruct the radiation doses to the survivors in Hiroshima and Nagasaki. At the time it was established, DS86 was believed to be the best available dosimetric system for RERF, but questions have persisted about some features, especially the estimates of neutrons resulting from the Hiroshima bomb. This book describes the current situation, the gamma-ray dosimetry, and such dosimetry issues as thermal-neutron discrepancies between measurement and calculation at various distances in Hiroshima and Nagasaki. It recommends approaches to bring those issues to closure and sets the stage for the recently convened U.S. and Japan Working Groups that will develop a new dosimetry for RERF. The book outlines the changes relating to DS86 in the past 15 years, such as improved numbers that go into, and are part of, more sophisticated calculations for determining the radiations from bombs that reach certain distances in air, and encourages incorporation of the changes into a revised dosimetry system.
Download or read book Interim Report on a Fast and Slow neutron Survey Meter written by A. H. Redmond and published by . This book was released on 1957 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: If necessary, the instrument can be used to determine whether a given flux from a reactor is moderated or unmoderated. The experimental model contains proportional counters sensitive to fast or slow neutrons; at a tolerance flux of either, the instrument reads in the neighborhood of halfscale. The model case measures about 6 by 6 by 11 in. Power is derived from five 1.5 volt flashlight cells, and the instrument should operate continuously for more than 60 hours at room temperature. A plutonium source is used for a check of sensitivity, to ensure that the instrument is in calibration before use.
Download or read book Calculation of Fast neutron Flux Emerging from a Reactor Beamhole and Comparison with Experiment written by Harvey S. Bloomfield and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aspects of Fast Neutron Microdosimetry written by Judith Helen Meek and published by . This book was released on 1983 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calculated Behavior of a Fast Neutron Spectrometer Based on the Total Absorption Principle written by James Elroy Leiss and published by . This book was released on 1959 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Dosimetry written by John W. Baum and published by . This book was released on 1955 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements and Calculations of Energy and Angular Details of Fast Neutron Flux In written by and published by . This book was released on 1963 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Information Pilot written by and published by . This book was released on 1949 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fast Neutron Fluence and the Activation Detector Activity Calculations Using the Effective Source Method and the Adjoint Function14th International Symposium on Reactor Dosimetry on 22 27 May 2011 in Bretton Woods NH written by J. Hep and published by . This book was released on 2012 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the application of effective source in forward calculations and the adjoint method to the solution of fast neutron fluence and activation detector activities in the reactor pressure vessel (RPV) and RPV cavity of a VVER-440 reactor. Its objective is the demonstration of both methods on a practical task. The effective source method applies the Boltzmann transport operator to time integrated source data in order to obtain neutron fluence and detector activities. By weighting the source data by time dependent decay of the detector activity, the result of the calculation is the detector activity. Alternatively, if the weighting is uniform with respect to time, the result is the fluence. The approach works because of the inherent linearity of radiation transport in non-multiplying time-invariant media. Integrated in this way, the source data are referred to as the effective source. The effective source in the forward calculations method thereby enables the analyst to replace numerous intensive transport calculations with a single transport calculation in which the time dependence and magnitude of the source are correctly represented. In this work, the effective source method has been expanded slightly in the following way: neutron source data were performed with fewgroup method calculation using the active core calculation code moby-dick. The follow-up neutron transport calculation was performed using the neutron transport code tort to perform multigroup calculations. For comparison, an alternative method of calculation has been used based upon adjoint functions of the Boltzmann transport equation. Calculation of the three-dimensional (3-D) adjoint function for each required computational outcome has been obtained using the deterministic code tort and the cross section library BGL440. Adjoint functions appropriate to the required fast neutron flux density and neutron reaction rates have been calculated for several significant points within the RPV and RPV cavity of the VVER-440 reactor. Both of calculation methods are briefly described and the results are compared.
Download or read book Differential Measurements of Fast neutron Air ground Interface Effects written by R. L. French and published by . This book was released on 1971 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experiment provided confirmation, both qualitative and quantitative, of the "first-last collision model" of the air-ground interface effect.
Download or read book Documents Released by the United States Atomic Energy Commission to January 1 1950 written by U.S. Atomic Energy Commission and published by . This book was released on 1950 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calculated Time correlated Neutron induced Radiations in a Sandstone Formation written by C. W. Peters and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fast Neutron Measurements and Calculations for the LiD Fusion Plate Developed at TAMU written by Seong Ho Na and published by . This book was released on 1989 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Monitoring by Means of special Fine grain Alpha emulsion Film written by J. S. Cheka and published by . This book was released on 1947 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
