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Rational approach to patient exposure to radiation in the hospital

Description: During radiotherapy for the treatment of neoplasms the radiation dose needs to be selected with great care and the treatment needs to be carried out with a high degree of precision and accuracy for maximum results. Data are presented on the probability of tumor control of Hodgkin's disease and carcinoma of the supraglottis following radiation treatment. The x radiation dose to patients during various diagnostic radiographic examinations is discussed and several methods are suggested for dose re… more
Date: January 1, 1975
Creator: Lanzl, L. H. & Moser, F. L.
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Partner: UNT Libraries Government Documents Department
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Retrospective dosimetry using EPR and TL techniques: a status report

Description: Methods of retrospective dosimetry, including luminescence and electron paramagnetic resonance spectroscopy (EPR), rely on measurement of accident dose absorbed by naturally occurring materials - ceramics in the case of both thermoluminescence (TL) and optically stimulated luminescence (OSL) and organic materials and bio- minerals in the case of EPR. Each of these methods relies on measurement of radiation defects resulting from accidental exposure. Since defects also result from natural source… more
Date: December 31, 1996
Creator: Haskell, E.H.
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Partner: UNT Libraries Government Documents Department
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Overview on radiation effects in electronics

Description: The radiation spectrum constituents of interest to microelectronics are prompt gamma or x-ray, total dose, neutrons (or protons), and cosmic radiation. Each of these constituents has a unique effect upon microelectronic components and requires unique techniques to improve the microelectronic radiation tolerance to such an exposure. This paper reviews the radiation effects associated with the natural space and nuclear reactor radiation environment, that is to say, total dose, neutrons, and cosmi… more
Date: January 1, 1989
Creator: Dawes, W.R. Jr. (Sandia National Labs., Albuquerque, NM (USA))
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Partner: UNT Libraries Government Documents Department
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Interim report of the Advisory Committee on human radiation experiments

Description: The Advisory Committee on Human Radiation Experiments was created by President Clinton to advise the Human Radiation Interagency Working Group on the ethical and scientific criteria applicable to human radiation experiments carried out or sponsored by the U.S. Government. The Committee seeks to answer several fundamental question: What ethics criteria should be used to evaluate human radiation experiments? What was the Federal Government`s role in human radiation experiments? What are the crite… more
Date: October 21, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Creating a strategy for science-based national policy: Addressing conflicting views on the health risk of low-level ionizing radiation. Final report, Wingspread Conference

Description: Significant cancer risk for adults exposed to more than 100 millisieverts (10 REM) of ionizing radiation. More research on low-level ionizing radiation is needed in molecular and cellular mechanisms of injury and ongoing exposed populations. Implementation costs should be considered in regulating low-level ionizing radiation. Comparative risk assessment is a powerful tool for risk-based policy formation, and conflicting legal statutes should become harmonized for radiation regulation. More publ… more
Date: March 3, 1998
Creator: McClellan, Roger O. & Apple, Martin A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Polyethylene as a Radiation Shielding Standard in Simulated Cosmic-Ray Environments

Description: Radiation risk management for human space missions dependson accurate modeling of high-energy heavy ion transport in matter. Theprocess of nuclear fragmentation can play a key role in reducing both thephysical dose and the biological effectiveness of the radiationencountered in deep space. Hydrogenous materials and light elements areexpected to be more effective shields against the deleterious effects ofGalactic Cosmic Rays (GCR) than aluminum, which is used in currentspacecraft hulls. NASA has… more
Date: August 19, 2006
Creator: Guetersloh, Stephen B.; Zeitlin, Cary; Heilbronn, Lawrence H.; Miller, Jack; Komiyama, Tatsudo; Fukumura, A. et al.
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Partner: UNT Libraries Government Documents Department
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Muons and neutrinos at high-energy accelerators

Description: Background levels in detectors and radiation problems at future colliders--whether pp, e{sup +}e{sup {minus}} or {mu}{sup +}{mu}{sup {minus}} are in large part determined by the presence of muons. Neutrinos from muon decay at muon colliders or storage rings are highly collimated and propagate outward within a narrowdisk in which significant radiation doses persist out to very large distances. This paper highlights physics models and Monte Carlo algorithms developed mainly for studying these pro… more
Date: August 17, 2000
Creator: Andreas Van Ginneken, Sergei Striganov and Nikolai Mokhov
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Partner: UNT Libraries Government Documents Department
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Overview of United States synchrotron radiation facilities

Description: There has been considerable activity within the past year involving the creation of new and the improvement of existing capabilities for research with synchrotron light. The purpose of this review is to summarize what has happened within the United States. Being a status report, some of the information necessarily has a date attached to it - the date, in this case, being early September 1983.
Date: January 1, 1983
Creator: Watson, R. E.
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Partner: UNT Libraries Government Documents Department
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Some ideas on the advantages of soft x-rays as imaging particles

Description: This paper discusses uses of soft x-rays as imaging particles. Particular topics discussed are: Soft x-ray as a biological probe; overview of x-ray microscope techniques; analysis of the usefulness of x-rays in imaging and microanalysis; and physical radiation damage. 27 refs., 3 figs., 1 tab.
Date: July 1, 1988
Creator: Howells, M.
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Partner: UNT Libraries Government Documents Department
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Biology relevant to space radiation

Description: The biological effects of the radiations to which mankind on earth are exposed are becoming known with an increasing degree of detail. This knowledge is the basis of the estimates of risk that, in turn, fosters a comprehensive and evolving radiation protection system. The substantial body of information has been, and is being, applied to questions about the biological effects of radiation is space and the associated risk estimates. The purpose of this paper is not to recount all the biological … more
Date: August 1996
Creator: Fry, R. J. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Techniques of absolute low energy x-ray calibration

Description: Recent advances in pulsed plasma research, materials science, and astrophysics have required many new diagnostic instruments for use in the low energy x-ray regime. The characterization of these instruments has provided a challenge to instrument designers and provided the momentum to improve x-ray sources and dosimetry techniques. In this paper, the present state-of-the-art in low energy x-ray characterization techniques is reviewed. A summary is given of low energy x-ray generator technology a… more
Date: January 1, 1986
Creator: Day, R.H.
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Partner: UNT Libraries Government Documents Department
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Soft-x-ray and vacuum-ultraviolet beamlines at the National Synchrotron Light Source 700-MeV storage ring

Description: We summarize the characteristics of the first beamlines which are being installed and commissioned at the National Synchrotron Light Source (NSLS) 700 MeV storage ring at Brookhaven National Laboratory. We also give a progress report as of July 1982 on the early stages of beamline alignment and operation in which particular attention is paid to the 5 beamlines which NSLS has developed. The report describes in detail a novel method for beamline alignment which is of general application.
Date: January 1, 1982
Creator: Williams, G. P. & Howells, M. R.
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Partner: UNT Libraries Government Documents Department
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Performance criteria for dosimeter angular response

Description: This report provides criteria for evaluating the response of personnel dosimeters to radiation at nonperpendicular incidence. The US Department of Energy Laboratory Accreditation Program (DOELAP) ensures that dosimetry systems at DOE facilities meet acceptable standards for precision and accuracy. In the past, these standards were limited to tests for system variability, energy dependence, and level of detection. The proposed criteria will broaden the scope of DOELAP to include the angular resp… more
Date: June 1, 1988
Creator: Roberson, P. L.; Fox, R. A.; Cummings, F. M.; McDonald, J. C. & Jones, K. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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