Charge Transfer Studies with a Time-of-flight Mass Spectrometer: Cross Section for N Plus Sub 2 on N Sub 2 at 2650 Electron Volts PDF Download
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Author: W. W Hunt (Jr)
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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A method of using the drift tube of an adapted time-of-flight mass spectrometer as the collision chamber for measuring charge transfer cross sections is described in detail. (Author).
Author: W. W Hunt (Jr)
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
A method of using the drift tube of an adapted time-of-flight mass spectrometer as the collision chamber for measuring charge transfer cross sections is described in detail. (Author).
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1416
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ISBN:
Category : Science
Languages : en
Pages : 910
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Category : Union catalogs
Languages : en
Pages :
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Includes entries for maps and atlases.
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Category :
Languages : en
Pages :
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A laminated scintillator was constructed of Ag activated ZnS in fused B/ sub 2/O/sub 3/. The efficiency of this scintillator was determined and compared with other scintillators. J-values of O for the 41.5 and 44.5 ev and 1 for the 52.6 ev resonances in Pu/sup 239/ were determined. New cross section values are reported for U/sup 235/. Additional attempts to establish fission product mass distribution as a function of neutron energy are reported. A method of analyzing neutron resonances by using partial areas rather than the total area is described. Experiments were conducted to study the fission yield from U/sup 235/ using resonance neutrons in the range 1 to 10 ev. Fission product analyses were compared with an analysis of pile irradiated U/sup 235/. No differences in fission yields were detected in the range studied. Modifications in the Van de Graaff charging system were made in an attempt to improve charging efficiency and belt life. Angular distributions of neutrons from the reactions nd 1310 kev states. Measured angular distributions from the reaction Li (alpha, gamma)B/ sup 10/ were compared with theoretical distributions. The observed resonances, gamma rays, and angular-distribution coefficients are reported. Additional data are reported on the decay schemes of Sn/sup 123/, Fe/sup 52/, and Eu/sup 152/. Proton strength function measurements indicate a maximum at A approximately 75. A complete list of the resonance encrgies of Al/sup 27/ and corresponding energy levels in A/sup 28/ was prepared. A polarized neutron beam from the Argonne Research Reactor was used to observe the beta decay of neutrons parallel and antiparallel to their spins. The ratio 0.62 plus or minus 0.10 was determined. Positron polarization and annihilation was investigated in Co, Fe, Ni, Cu, and Gd. The relative light outputs of liquid scintillators using toluene and isopropylbiphenyl solvents and p-terphenyl, diphenyloxazole, and phenylbiphenylyl- oxadiazole were determined. Higher efficiencies were obtained with the isopropylbiphenyl scintillators. Mass spectrometer techniques were used to study the vaporization of BeO, UO/sub 2/, and probability of the heterogeneous reactor to those of a homogeneous reactor of the same dimensions. (For preceding period see PR-P-33.) (D.E.B.).
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ISBN:
Category :
Languages : en
Pages : 162
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Book Description
Backpacker brings the outdoors straight to the reader's doorstep, inspiring and enabling them to go more places and enjoy nature more often. The authority on active adventure, Backpacker is the world's first GPS-enabled magazine, and the only magazine whose editors personally test the hiking trails, camping gear, and survival tips they publish. Backpacker's Editors' Choice Awards, an industry honor recognizing design, feature and product innovation, has become the gold standard against which all other outdoor-industry awards are measured.
Author: Joseph M. Marshall
Publisher: Springer Science & Business Media
ISBN: 9401006326
Category : Technology & Engineering
Languages : en
Pages : 361
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Book Description
The primary objective of this NATO Advanced Study Institute (ASI) was to present an up-to-date overview of various current areas of interest in the field of photovoltaic and related photoactive materials. This is a wide-ranging subject area, of significant commercial and environmental interest, and involves major contributions from the disciplines of physics, chemistry, materials, electrical and instrumentation engineering, commercial realisation etc. Therefore, we sought to adopt an inter disciplinary approach, bringing together recognised experts in the various fields while retaining a level of treatment accessible to those active in specific individual areas of research and development. The lecture programme commenced with overviews of the present relevance and historical development of the subject area, plus an introduction to various underlying physical principles of importance to the materials and devices to be addressed in later lectures. Building upon this, the ASI then progressed to more detailed aspects of the subject area. We were also fortunately able to obtain a contribution from Thierry Langlois d'Estaintot of the European Commission Directorate, describing present and future EC support for activities in this field. In addition, poster sessions were held throughout the meeting, to allow participants to present and discuss their current activities. These were supported by what proved to be very effective feedback sessions (special thanks to Martin Stutzmann), prior to which groups of participants enthusiastically met (often in the bar) to identify and agree topics of common interest.
Author: Brian A. Bidlingmeyer
Publisher: John Wiley & Sons
ISBN: 9780471572466
Category : Science
Languages : en
Pages : 470
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Book Description
Of related interest. Trace and Ultratrace Analysis by HPLC Satinder Ahuja Written by a leading scientist in the field, this monograph provides the first definitive and technically up-to-date treatment of the theory, equipment, and applications of chemistry's most powerful reliable analytical technique. Coverage includes an encyclopedic compendium of common substances that require trace and ultratrace analysis, and features clear discussion of such important topics as considerations for HPLC equipment, sensitive detectors, sample preparation, method development, selectivity and computer-based optimizations, optimizing detectability, and much more. 1991 (0 471-51419-5) 432 pp. High Performance Liquid Chromatography in Biotechnology Edited by William S. Hancock Analytical chemists, biochemists, and chemical engineers will find this up-to-date guide to HPLC's recent developments essential for enhancing on-the-job technical expertise. Extensive coverage includes the broad applications of HPLC, ranging from major chromatographic techniques (including reversed phase, ion exchange, affinity and hydrophobic interaction chromatography) to specific separations such as those in monoclonal antibody and nucleic acid purification. Techniques for quality control programs and advanced technology are also discussed. 1990 (0 471-82584-0) 564 pp. Unified Separation Science J. Calvin Giddings This advanced text/monograph brings together for the first time the variety of techniques used for chemical separations by outlining their common underlying mechanisms. The mass transport phenomena underlying all separation processes are developed in a simple physical-mathematical form, facilitating analysis of alternative separation techniques and the factors integral to separation power. The first six chapters provide background material applicable to a wide range of separation methods, while the final five chapters illustrate specific techniques and methods. 1991 (0 471-52089-6) 320 pp.
Author: William P. Swanson
Publisher: Bernan Press(PA)
ISBN:
Category : Business & Economics
Languages : en
Pages : 350
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Book Description
Electron linear accelerators are being used throughout the world in increasing numbers in a variety of important applications. Foremost among these is their role in the treatment of cancer. Commercial uses include non-destructive testing by radiography, food preservation, product sterilization and radiation processing of materials such as plastics and adhesives. Scientific applications include investigations in radiation biology, radiation chemistry, nuclear and elementary particle physics and radiation research. This manual provides authoritative guidance in radiation protection for this important category of radiation sources.
Author: B. W. Sargent
Publisher:
ISBN:
Category : Neutron sources
Languages : en
Pages : 8
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