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Space Charge Limitation Of Secondary Electron Emission Currents Produced By High Energy Radiations
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Book Synopsis Space-charge Limitation of Secondary Electron Emission Currents Produced by High Energy Radiations by : Peter D. Gianino
Download or read book Space-charge Limitation of Secondary Electron Emission Currents Produced by High Energy Radiations written by Peter D. Gianino and published by . This book was released on 1970 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Secondary electron emission is an important consideration in radiation hardening of electronics. Basic information on this phenomenon, its influence, and the factors that affect its magnitude are required. Space -charge effects on the low-energy, secondary-electron emission currents flowing within any evacuated, two-electrode, plane-parallel system bombarded by KeV or MeV electrons or photons are treated in this report. The secondary emission from each irradiated electrode is assumed to be representable by a Maxwellian distribution, as is done in thermionic electron emission. This permits the complete analytical solution for the thermionic problem to be carried over in its entirety to the secondary case. The principal objective is to determine the net current density between the electrodes J sub c, given the saturation current density J sub s, or vice-versa, under known geometrical and electrical conditions. It is found that d(2) J sub o, where d is the electrode separation, is a useful parameter for characterizing space-charge effects in a parallel-plate geometry system. Generalized graphs employing this parameter are presented so that the results derived here can be readily applied to cases of interest; they permit the determination of threshold voltage conditions for space-charge limitation and partial retardation effects in a diode configuration. Other graphs show the variation of d(2) J sub c with applied voltage. These theoretical predictions are compared to data derived from some AFCRL experiments, in which foil electrodes of aluminum, tantalum and gold were irradiated by 60Co gamma-rays and 10 MeV electrons. (Author).
Book Synopsis Bibliography, with Abstract[s], of AFCRL Publications from 1 July to 30 September 1970 by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Bibliography, with Abstract[s], of AFCRL Publications from 1 July to 30 September 1970 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1970 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Backemission of Electrons from Metals Irradiated by 0.2 MeV to 1.4 MeV Electrons by : A. R. Frederickson
Download or read book Backemission of Electrons from Metals Irradiated by 0.2 MeV to 1.4 MeV Electrons written by A. R. Frederickson and published by . This book was released on 1971 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-energy and high-energy electron yields have been measured from Al, Cu, Ta, and Pb targets bombarded by 0.2 MeV to 1.4 MeV electrons. An improved apparatus, the hemispherical triode, is shown to be very effective in measuring the total yield of high-energy electrons (= or > 100 eV) and the total yield of low-energy electrons (
Book Synopsis Report on Research at AFCRL. by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Report on Research at AFCRL. written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1970 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1971 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research & Development Reports by :
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1970 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1970 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Topics in Radiation Dosimetry by : Frank H. Attix
Download or read book Topics in Radiation Dosimetry written by Frank H. Attix and published by Elsevier. This book was released on 2013-10-02 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation Dosimetry, Supplement 1: Topics in Radiation Dosimetry covers instruments and techniques in dealing with special dosimetry problems. The book discusses thermoluminescence dosimetry in archeological dating; dosimetric applications of track etching; vacuum chambers of radiation measurement. The text also describes wall-less detectors in microdosimetry; dosimetry of low-energy X-rays; and the theory and general applicability of the gamma-ray theory of track effects to various systems. Dose equivalent determinations in neutron fields by means of moderator techniques; as well as developments in radiophotoluminescence dosimetry are also considered. Physicists, mathematicians, and archeologists will find the book useful.
Book Synopsis Bibliography of Scientific and Industrial Reports by :
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1970-11 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1976-08 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U. S. Government Research and Development Reports by :
Download or read book U. S. Government Research and Development Reports written by and published by . This book was released on 1970-10 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-intensity Radiation Dosimetry with SEMIRAD by : Stanley Kronenberg
Download or read book High-intensity Radiation Dosimetry with SEMIRAD written by Stanley Kronenberg and published by . This book was released on 1966 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1971 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts Index written by and published by . This book was released on 1972 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Secondary Electron Emission Due to Positive Ion Bombardment by : John W. Murdock
Download or read book Secondary Electron Emission Due to Positive Ion Bombardment written by John W. Murdock and published by . This book was released on 1955 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Medical Imaging Physics by : William R. Hendee
Download or read book Medical Imaging Physics written by William R. Hendee and published by John Wiley & Sons. This book was released on 2003-04-14 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive publication covers all aspects of image formation in modern medical imaging modalities, from radiography, fluoroscopy, and computed tomography, to magnetic resonance imaging and ultrasound. It addresses the techniques and instrumentation used in the rapidly changing field of medical imaging. Now in its fourth edition, this text provides the reader with the tools necessary to be comfortable with the physical principles, equipment, and procedures used in diagnostic imaging, as well as appreciate the capabilities and limitations of the technologies.
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