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Download or read book Aerial Radiological Monitoring System : written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (742 download)
Download or read book Aerial Radiological Monitoring System. I. Theoretical Analysis, Design, and Operation of a Revised System written by and published by . This book was released on 1961 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Division of Biology and Medicine (DBM), Atomic Energy Commission, requested that Edgerton, Germeshausen & Grier, Inc., perform a system analysis of the Aerial Radiological Monitoring Survey (ARMS) program. The objective of the analysis was to determine the feasibility of reducing the volume and the weight of the radiation-detection instrumentation and of making other possible improvements, including navigation and data reduction to yield ground- radiation-contour maps at a reduced operating cost. The present Division of Biology and Medicine-U.S. Geological Survey cooperative ARMS program is reviewed, and a philosophy of an optimum approach covering only the area of DBM interest is developed. The existing aerial radiometric measurement system is unsuitable in the light of present DBM requirements. The electronic design of a revised ARMS system is outlined in detail. Necessary modifications and accessories required with the aircraft are described. The envisioned integrated installation in a Beech Model 5OE aircraft is given. Operating procedures are developed for both normal survey conditions and disaster situations. Systems error is discussed on the basis of the accuracy required with the integrated system for radiation measurements and space positioning of the aircraft.
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ISBN 13 :
Total Pages : 978 pages
Book Rating : 4.3/5 (91 download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974-07 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zolin G. Burson
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (319 download)
Download or read book Mobile Radiological Measuring Unit written by Zolin G. Burson and published by . This book was released on 1965 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John A. Auxier
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Ichiban written by John A. Auxier and published by . This book was released on 1964 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John A. Auxier
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)
Download or read book Technical Concept written by John A. Auxier and published by . This book was released on 1962 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 770 pages
Book Rating : 4.:/5 (321 download)
Download or read book NCRP Report written by and published by . This book was released on 1976 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zolin G. Burson
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (319 download)
Download or read book Experimental Radiation Measurements in Conventional Structures: Comparison of measurements in above-ground and below-ground structures from simulated and actual fallout radiation written by Zolin G. Burson and published by . This book was released on 1964 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. G. Provenzano
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (91 download)
Download or read book Feasibility Study written by T. G. Provenzano and published by . This book was released on 1965 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and fabrication of a high-intensity, 14-Mev neutron source which can be operated on a hoist platform on the 1500-ft BREN tower at the Nevada Test Site (NTS) has been determined to be feasible. Utilizing the T(d, n)-4He reaction, the source should be capable of producing, as a minimum, an average intensity of 10-13 neutrons/sec for periods up to 4 hr. The type and placement of power supplies, ion sources, targets, and vacuum equipment have been examined and a preliminary conceptual design completed. Control systems, testing procedures, and construction operations were studied and are presented. It is estimated that the neutron source will cost from 260,000 to 300,000, occupy approximately 400 ft-3, weigh approximately 7.5 tons and require about 10 months to complete.
Author : Zolin G. Burson
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (319 download)
Download or read book Experimental Radiation Measurements in Conventional Structures: Radiation measurements in two two-story and three one-story typical residential structures before and after modification written by Zolin G. Burson and published by . This book was released on 1964 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Z. Burson
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (359 download)
Download or read book Experimental Evaluation of the Fallout-radiation Protection Afforded by a Southwestern Residence written by Z. Burson and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was conducted to determine the fallout-radiation protection afforded by a residence representative of a type of construction much in favor in the Southwest: a single-story stucco and frame house with a heavy shake roof and no basement. This study was one of many such studies sponsored by Civil Effects Test Operations, Division of Biology and Medicine, U. S. Atomic Energy Commission, for the purpose of evaluating the protection presently afforded by ordinary homes and structures against the dangers of fallout radiation. The protection afforded by the home was determined by simulating a fallout-radiation field above and immediately surrounding the house and measuring the radiation level within. The radiation field was simulated by pumping a sealed Co(60) source through a long length of tubing evenly distributed over the test area. Highly sensitive dose-integrating ionization chambers were used to measure the radiation level inside the structure. The test was performed rapidly, easily, and safely. Valid statistical data were obtained even though the radiation level was of such low magnitude that it was unnecessary to evacuate any of the neighboring homes. The protection factors within the house (ratio of exposure dose rate in the open field to exposure dose rate in the structure) ranged from 2.8 to 4.4, depending on the location. The results compare favorably with those found in previous exercises under similar conditions.
Author : Francis John Davis
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.E/5 ( download)
Download or read book Extended- and Point-source Radiometric Program written by Francis John Davis and published by . This book was released on 1962 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extended-source calibration area was set up in the Nevada Test Site area to encourage a standardization of airborne radiometric instrumentation among several government agencies. and private companies. A simulated plane-source array was laid out with positions at 100-ft intervals in the form of a square 2000 ft on a side. For ground measurements a smaller square array of 100 positions at 10-ft intervals was placed in the center of the large array. Two sets of sources were used in the array. Cobalt-60 and cesium-137 sources of 4.5 and 15 mc, respectively, were available for the large array and sources one hundredth of these values in the smaller array. Point sources of Co(exp 60), Cs(exp 137), and I(exp 131) of the order of 2 curies each were available for comparison with the area sources. Measurements 3 ft above the area sources indicated 200 micronr/hr for Co(exp 60) and 225 micronr/hr for Cs(exp 137). Four government agencies and one private company participated in an intercalibration exercise during November 1960. Various types and sizes of aircraft from a Cessna 172 to a Douglas Dc-3 were used. Various instrumentation devices, mostly scintillation type detectors, were tested. Flights ranging from 100- to 1000-ft altitude included background measurements, instrument calibration, intercalibration, proof-testing equipment, comparison of point- and area-source measurements, measurements of air attenuation and buildup of gamma radiation, and gamma-ray spectral measurements.
Author : United States. Federal Aviation Administration. Library Services Division
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 (243 download)
Download or read book Defense Readiness written by United States. Federal Aviation Administration. Library Services Division and published by . This book was released on 1964 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zolin G. Burson
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (319 download)
Download or read book Experimental Evaluation of the Radiation Protection Provided by an Earth-covered Shelter written by Zolin G. Burson and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was undertaken to determine the protection against fallout radiation provided by an earth-covered shelter. The study indicated that the shelter offered excellent protection from fallout radiation deposited on and around the shelter. This study also added additional data to the research in radiation shielding provided by various structures which is being conducted by the Civil Effects Test Operations, Division of Biology and Medicine, U.S. Atomic Energy Commission. A fallout radiation field was simulated by pumping, at constant speed, a sealed Co60 source through a long length of tubing which was evenly distributed over an area. Radiation measurements were made Inside the shelter by dose-integrating ionization chambers. In general, the results indicated that the protection factor (ratio of the open-field exposure dose rate to the exposure dose rate in the structure) was approximately 5000 in the center of the shelter, increasing to 10,000 to 15,000 along the sides, and decreasing to about 3000 near the ends. Directly below vents the protection factor was found to be approximately 2500 at the 3-ft level. The shelter was a half-round corrugated-steel structure covered by a minimum of approximately 2 ft of earth on the top and 5 to 7 ft of earth on the sides.
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ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (319 download)
Download or read book A Model Designed to Predict the Motion of Objects Translated by Classical Blast Waves written by and published by . This book was released on 1961 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical model was developed for the purpose of predicting the motion of objects translated by winds associated with 'classical' blast waves produced by explosions. Among the factors omitted from the model for the sake of simplicity were gravity and the friction that may occur between the displaced object and the surface upon which it initially rested. Numerical solutions were obtained (up to the time when maximum missile velocity occurs) in terms of dimensionless quantities to facilitate application to specific blast situations. The results were computed within arbitrarily chosen limits for blast waves with shock strengths from 0.068 to 1.7 atm (1 to 25 psi at sea level) for displaced objects with aerodynamic characteristics ranging from those of a human being to those of 10-mg stones and for weapon yields at least as small as 1 kt or as large as 20 Mt.
Author : H. A. Zagorites
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Qualitative Study of Radio-frequency Interference in Radiac-telemetry Systems written by H. A. Zagorites and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A qualitative evaluation was made of the effects of radio frequency interference (RFI) and bandwidh limitation on the accuracy and reliability of transmitted data from a typical nuclear radiation instrument coupled to a standard telemetry system. Significant errors resulted from RFI. These errors demonstrated the need for RF isolation in high impedance elements of nuclear radiation instruments coupled to telemetry equipment or operating in RF environments. Bandwidth limitation did not significantly affect the accuracy or reliability of the pulsed output system used; however, noise reduced data reliability at very low pulse repetition rates. (Author).
Author : Clayton S. White
Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.3/5 (91 download)
Download or read book Biological Tolerance to Air Blast and Related Biomedical Criteria written by Clayton S. White and published by . This book was released on 1965 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experience with animals exposed in a variety of above and below ground structures during full-scale field operations at the Nevada Test Site in 1953, 1955 and 1957 were reviewed. The data were assembled and summarized to illustrate the nature of the blast-induced problems of significance in protective shelters, "open" as well as "closed". Potential hazards were related to the following: various patterns of variation in environmental pressure; translational events associated with transient, high-velocity winds, ground shock and gravity involving the impact of energized inanimate objects on the one hand the the consequences of whole-body displacement on the other; non-line-of-site thermal phenomena including hot objects and rapidly moving hot, dust- laden air and debris; and dust, in the respirable size range, sufficiently high in concentration even in "closed" shelters as to warrant design measures to minimize or eliminate the occurrence of small particulates whether arising from wall spalling or otherwise. Tentative biological criteria, conceived to help assess human hazards from blast-related phenomena, were presented. Relevant data from the literature and on- going research in environmental medicine were set forth to aid the reader in appreciating how the criteria were formulated, what information was extrapolated from animal data, and wherein "best estimates" were employed. "State-of-the-art" concepts were noted to emphasize areas in which more thinking and research must continue if more refined, complete and adequate criteria are to be forthcoming for assessing man's response to blast-induced variation in his immediate environment.
