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Author : Albert Wattenberg
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (91 download)
Download or read book Photo-neutron Sources and the Energy of the Photo-neutrons written by Albert Wattenberg and published by . This book was released on 1946 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B. W. Sargent
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.3/5 (91 download)
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:
Author : D. J. Hughes
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.3/5 (91 download)
Download or read book Cloud-chamber Energy Measurement of Photoneutron Sources written by D. J. Hughes and published by . This book was released on 1947 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert Wattenberg
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (213 download)
Download or read book Photo-neutron Sources and the Energy of the Photo-neutrons written by Albert Wattenberg and published by . This book was released on 1947 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 63 pages
Book Rating : 4.:/5 (683 download)
Download or read book General Purpose Photoneutron Production in MCNP4A. written by and published by . This book was released on 1995 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: A photoneutron production option was implemented in the MCNP4A code, mainly to supply a tool for reactor shielding calculations in beryllium and heavy water environments of complicated three-dimensional geometries. Photoneutron production cross sections for deuterium and beryllium were created. Subroutines were developed to calculate the probability of photoneutron production at photon collision sites and the energy and flight direction of the created photoneutrons. These subroutines were implemented into MCNP4A. Some small program changes were necessary for processing the input to read the photoneutron production cross sections and to install a photoneutron switch. Some arrays were installed or extended to sample photoneutron creation and loss information, and output routines were changed to give the appropriate summary tables. To verify and validate the photoneutron production data and the MCNP4A implementations, the yields of photoneutron sources were calculated and compared with experiments. In the case of deuterium-based photoneutron sources, the calculations agreed well with the experiments; the beryuium-based photoneutron source calculations were up to 30% higher compared with the measurements. More accurate beryllium photoneutron cross sections would be desirable. To apply the developed method to a real shielding problem, the fast neutron fluxes in the heavy-water-filled reflector vessel of the Advanced Neutron Source reactor were investigated and compared with published DORT calculations. Considering the complete independence between the calculations, the merely 10 to 20% lower fluxes obtained with MCNP4A, compared against the DORT results, were more than satisfactory, as the discrepancy is based primarily on differences in the calculated thermal neutron fluxes.
Author :
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.3/5 (91 download)
Download or read book Yields of Neutrons from Photo-neutron Sources written by and published by . This book was released on 1947 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert Wattenberg
Publisher : Franklin Classics Trade Press
ISBN 13 : 9780353609624
Total Pages : 40 pages
Book Rating : 4.6/5 (96 download)
Download or read book Photo-Neutron Sources written by Albert Wattenberg and published by Franklin Classics Trade Press. This book was released on 2018-11-13 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (684 download)
Download or read book Photoneutron Source Based on a Compact 10 MeV Betatron written by and published by . This book was released on 1998 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accelerator-based photoneutron sources have enjoyed wide use and offer the advantages of long term stability, ease of control and absence of radioactive materials. The authors report here measurements of the yield of photoneutrons from a neutron generator using a compact betatron (466 kg total weight, 900 by 560 by 350 mm betatron dimensions) at the Institute of Introscopy of the Tomsk Polytechnic University. Electrons were accelerated to energies up to 10 MeV and produced a bremsstrahlung beam with a dose rate of 0.16 Gy/min (at 10 MeV, 1 meter from the bremsstrahlung target) to irradiate LiD, Be, depleted U, and Pb neutron-producing targets. The angular distributions of photoneutrons produced by bremsstrahlung beams were measured with a long counter and integrated to determine neutron yield. In addition, neutron time of flight spectra were recorded from all targets using a 15 meter flight path perpendicular to the photon beam. The maximum observed yields were 5.2 x 104 n/rad/gram target obtained with LiD, 1.7 x 104 n/rad/gram from Be, 3.3 x 103 n/rad/gram from U, and 7.5 x 102 n/rad/gram from Pb. Optimization of target dimensions, shape, and positioning is expected to increase the yield from the LiD target by a factor of 35. With the increased yield, this compact betatron-based system could find application in the interrogation of waste containers for fissile material.
Author : Wade William Scates
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (61 download)
Download or read book Off-axis Photoneutron Sources for BNCT written by Wade William Scates and published by . This book was released on 2000 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (925 download)
Download or read book An Accelerator-based Epithermal Photoneutron Source for BNCT. written by and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Therapeutically-useful epithermal-neutron beams for BNCT are currently generated by nuclear reactors. Various accelerator-based neutron sources for BNCT have been proposed and some low intensity prototypes of such sources, generally featuring the use of proton beams and beryllium or lithium targets have been constructed. This paper describes an alternate approach to the realization of a clinically useful accelerator-based source of epithermal neutrons for BNCT that reconciles the often conflicting objectives of target cooling, neutron beam intensity, and neutron beam spectral purity via a two stage photoneutron production process.
Author : Albert Wattenberg
Publisher :
ISBN 13 : 9781293380925
Total Pages : 42 pages
Book Rating : 4.3/5 (89 download)
Download or read book Photo-Neutron Sources... - Primary Source Edition written by Albert Wattenberg and published by . This book was released on 2013-12 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Robert Beyster
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.3/5 (91 download)
Download or read book Safeguards Applications for Isotopic Neutron Sources written by J. Robert Beyster and published by . This book was released on 1970 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark Cameron Davis
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Monte Carlo Program for the Determination of the Energy Spectrum of Four Medium Photoneutron Sources written by Mark Cameron Davis and published by . This book was released on 1974 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. O. Hansen
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.3/5 (91 download)
Download or read book Energy of Neutrons from MsTh-D, La-D, Y-Be, and Sb-Be Photo-neutron Sources written by A. O. Hansen and published by . This book was released on 1945 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. B. Wilkin
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book Photoneutron source strengths written by G. B. Wilkin and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.F/5 ( download)
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kh. B. Mezhiborskaya
Publisher : Springer
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (91 download)
Download or read book Photoneutron Method of Determining Beryllium written by Kh. B. Mezhiborskaya and published by Springer. This book was released on 1962 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
