Search Results

open access

LAMPF: the meson factory. A LASL monograph

Description: A general and simplified introduction to the entire concept of LAMPF is given in terms of its experimental capabilities. Parts of the current experimental program are used as illustrative examples. Topics discussed include: (1) the evolution of the meson factory; (2) accelerator construction; (3) strong focusing; (4) accelerator innovations at LAMPF; (5) photons and pions; (6) muons as nuclear probes; (7) nuclear chemistry; (8) radiobiology and medical applications; (9) radioisotope production;… more
Date: August 1, 1977
Creator: Allred, J.C.
Partner: UNT Libraries Government Documents Department
open access

Treatment of hyperthyroidism: use of /sup 131/I and /sup 125/I

Description: Factors related to late hypothyroidism following the use of /sup 131/I for treatment of hyperthyroidism are discussed with regard to age of patient, size of dose, previous surgery, immune status, and others. Possible reasons for the post-therapeutic hypothyroidism are discussed with regard to effects of radiation on the reproductive capacity of thyroid cells, effects of radiation on blood vessels, and dose distribution of radioiodine. The following therapeutic strategies are discussed: reductio… more
Date: January 1, 1977
Creator: Atkins, H. L.
Partner: UNT Libraries Government Documents Department
open access

Fermilab neutron radiotherapy facility

Description: A facility for testing the effectiveness of high energy neutrons for the treatment of malignant tumors has been constructed at the Fermi National Accelerator Laboratory. The first neutrons were produced by the bombardment of 66-MeV protons on a beryllium target in July, 1975. After physically characterizing the neutron beam and performing preliminary radiobiological experiments, patient treatment started in September, 1976. At the time of this writing, 52 patients had been treated. A descriptio… more
Date: January 1, 1977
Creator: Awschalom, M.; Lee, G. M.; Palmer, M. L. & Young, D. E.
Partner: UNT Libraries Government Documents Department
open access

ORIS: the Oak Ridge Imaging System operation's manual

Description: The Oak Ridge Imaging System (ORIS) programs are briefly described. This volume is intended as an operators manual, but it includes program abstracts and instructions for assembling the modules and adding new ones. The instructions are specifically for the RK8E version, but they apply with minor changes to versions for other OS/8 devices. The system provides for access, storage, processing, and display of nuclear medicine images and for any other type of data displayable in image form. The syst… more
Date: December 1, 1977
Creator: Bell, P. R. & Dillon, R. S.
Partner: UNT Libraries Government Documents Department
open access

Brain plasticity, memory, and aging: a discussion

Description: It is generally assumed that memory faculties decline with age. A discussion of the relationship of memory and aging and the possibility of retarding the potential decline is hampered by the fact that no satisfactory explanation of memory is available in either molecular or anatomical terms. However, this lack of description of memory does not mean that there is a lack of suggested mechanisms for long-term memory storage. Present theories of memory usually include first, neurophysiological or e… more
Date: December 1, 1977
Creator: Bennett, E. L. & Rosenzweig, M. R.
Partner: UNT Libraries Government Documents Department
open access

Biological implications of radiation

Description: Some topics discussed are as follows: effects of diagnostic and therapeutic radiation on dividing cells, DNA, and blood cells; radiation sickness in relation to dose; early and late effects of radiation; effects of low dose irradiation; dose-effect curves; radioinduction of tumors in animals; and incidence of cancer in children following in utero exposure to diagnostic x rays. (HLW)
Date: January 1, 1977
Creator: Bond, Victor P.
Partner: UNT Libraries Government Documents Department
open access

Design and construction of the Donner 280-crystal positron ring for dynamic transverse section emission imaging

Description: The design and construction of a medical imaging system for the rapid, accurate, three-dimensional imaging of positron-labeled compounds in the human body are described. Our medical research goals include quantifying blood flow and metabolism in human heart muscle and brain. The system consists of a large gantry containing lead shielding and a ring of 280 NaI(Tl) detectors that completely encircles the patient; 280 photomultiplier tubes, preamplifiers and timing discriminators; circuits that de… more
Date: September 1, 1977
Creator: Derenzo, S.E.; Banchero, P.G.; Cahoon, J.L.; Huesman, R.H.; Vuletich, T. & Budinger, T.F.
Partner: UNT Libraries Government Documents Department
open access

Medium-energy physics program. Progress report, November 1, 1976--January 31, 1977

Description: Operations and research programs at the LAMPF Linac are reported for the period from November 1, 1976 through January 31, 1977. The contents include: (1) a summary and a list of recent publications; (2) engineering support; (3) accelerator support; (4) accelerator systems development; (5) injector systems; (6) electronic instrumentation and computer systems; (7) accelerator operations; (8) experimental areas; (9) beam line development; (10) large-spectrometer systems; (11) research; (12) nuclea… more
Date: June 1, 1977
Creator: Dunn, E. (comp.)
Partner: UNT Libraries Government Documents Department
open access

Biological and medical research with accelerated heavy ions at the Bevalac, 1974--1977. [Planning for use for radiotherapy and as radiation source for diagnostic radiography]

Description: The Bevalac, a versatile high-energy heavy-ion accelerator complex, has been in operation for less than two years. A major purpose for which the Bevalac was constructed was to explore the possibility of heavy-ion teams for therapy for certain forms of cancer. Significant progress has been made in this direction. The National Cancer Institute has recognized the advantages that these and other accelerated particles offer, and heavy ions have been included in a long-term plan for particle therapy … more
Date: April 1, 1977
Creator: Elam, S. (ed.)
Partner: UNT Libraries Government Documents Department
open access

Fan beam and parallel beam projection and back-projection operators

Description: Expressions for the fan beam and parallel beam projection and back-projection operators are given along with an evaluation of the point source response for the back-projection operators. The back-projection operator for the fan beam geometry requires the superposition of projection data measured over 360/sup 0/. Both the fan beam and parallel beam geometries have back-projection operators with point source responses which are proportional to 1/mod (r-r/sub 0/), and thus two-dimensional Fourier … more
Date: January 1, 1977
Creator: Gullberg, G. T.
Partner: UNT Libraries Government Documents Department
open access

Characteristics of computed tomographic reconstruction noise and their effect on detectability

Description: The EMI 5005 scanner produces images with noise characteristics similar to those in simulated CT reconstructions. A detectability phantom is described which will provide a means of investigation of the effect on human detection capability of the peculiar correlations present in the noise present in CT scanner images.
Date: January 1, 1977
Creator: Hanson, K. M. & Boyd, D. P.
Partner: UNT Libraries Government Documents Department
open access

Application of protons to computer tomography

Description: It was demonstrated that the application of protons to computed tomography can result in a significant dose advantage relative to x rays. Thus, at the same dose as is delivered by contemporary commercial x-ray scanners, a proton scanner could produce reconstructions with a factor of 2 or more improvement in density resolution. Whether such an improvement can result in significantly better diagnoses of human disease is an open question which can only be answered by the implementation of a proton… more
Date: January 1, 1977
Creator: Hanson, K. M.; Bradbury, J. N.; Cannon, T. M.; Hutson, R. L.; Laubacher, D. B.; Macek, R. et al.
Partner: UNT Libraries Government Documents Department

Tape 14 Side A

Description: Akha narratives. 0-15 Ámy: Origin of Earth; 15-20 Ámy: Medicine; 20-25 ásɔ̀q: àkhýhɔ́ə àjàq; 25-32 Ámy: On gambling. Chiengmai 22/5-77
Date: May 22, 1977
Duration: 31 minutes 31 seconds
Creator: Hansson, Inga-Lill
Partner: UNT College of Information
open access

Computer system for radiation therapy with negative pions

Description: Since 1974 Cancer Therapy Research has been conducted at the Clinton P. Anderson Meson Physics Facility, Los Alamos Scientific Laboratory, Los Alamos, New Mexico using negative pi-mesons. Through 1977 all treatments will have been static scan treatments, during which a DEC PDP-11/45 computer was used to monitor, record and verify channel and treatment parameters. This computer system has an RSX-11D operating system, and communicates with hardware via CAMAC. Beginning in 1978, dynamic scan treat… more
Date: January 1, 1977
Creator: Helland, J. A. & Kittell, R. S.
Partner: UNT Libraries Government Documents Department
open access

Proceedings of seventh symposium on sharing of computer programs and technology in nuclear medicine, computer assisted data processing

Description: The Council on Computers (CC) of the Society of Nuclear Medicine (SNM) annually publishes the Proceedings of its Symposium on the Sharing of Computer Programs and Technology in Nuclear Medicine. This is the seventh such volume and has been organized by topic, with the exception of the invited papers and the discussion following them. An index arranged by author and by subject is included.
Date: January 1, 1977
Creator: Howard, B.Y.; McClain, W.J. & Landay, M. (comps.)
Partner: UNT Libraries Government Documents Department
open access

Stable isotopes: essential tools in biological and medical research

Description: Recent developments in the use of the stable isotopes, /sup 13/C, /sup 15/N, /sup 17/O, and /sup 18/O, as tracers in research studies in the fields of biology, medicine, pharmacology, and agriculture are briefly reviewed. (CH)
Date: January 1, 1977
Creator: Klein, P. D.; Hachey, D. L.; Kreek, M. J. & Schoeller, D. A.
Partner: UNT Libraries Government Documents Department
open access

Application of proton radiography to medical imaging

Description: The use of charged particles for radiographic applications has been considered for some time, but progress has been impeded by the cost and availability of suitable accelerators. However, recent developments in technology could overcome these problems. A review is presented of the physical principles leading to an improvement in mass resolution per unit of absorbed dose for charged particle radiography relative to x-ray radiography. The quantitative comparisons between x-ray and proton radiogra… more
Date: December 1, 1977
Creator: Kramer, S. L.; Martin, R. L.; Moffett, D. R. & Colton, E.
Partner: UNT Libraries Government Documents Department
open access

Survey of computer processing of chest radiographs

Description: This paper reviews the work of several investigators who have concerned themselves with various aspects of computer measurement and diagnosis of anatomy present in chest radiography. It is hoped that, at the very least, it will provide a reasonably complete annotated bibliography of this body of research.
Date: January 1, 1977
Creator: Kruger, R. P.
Partner: UNT Libraries Government Documents Department
open access

Training programs in medical physics in the United States

Description: The history of the field of medical physics in the United States is reviewed; the importance of the development of the nuclear reactor and particle accelerators to medical physics is pointed out. Conclusions and recommendations of an IAEA/WHO seminar on the training of medical physicists (in 1972) are given and compared with existing programs in the US. It is concluded that the recommendations of the IAEA are, for the most part, followed. 1 table. (RWR)
Date: January 1, 1977
Creator: Lanzl, L.H.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the need for radiotherapy calibrations in the United States

Description: The custody, maintenance, and development of the United States national standards of measurement, together with the provision of calibration services related to these standards, has been assigned to the National Bureau of Standards (NBS) of the U. S. Department of Commerce. It may be that the present system of promulgation of radiation standards is no longer adequate for the United States. Ionizing radiation is being used increasingly for the treatment of cancer patients. At present, approximat… more
Date: January 1, 1977
Creator: Lanzl, L.H. & Rozenfeld, M.
Partner: UNT Libraries Government Documents Department
open access

Lawrence Berkeley Laboratory Accelerator Division Annual Report: 1975

Description: The Bevatron/Bevalac is operated, maintained, and continually improved as a national research facility for studies in nuclear science and in biology and medicine. Recent modifications have brought the 21-year-old synchrotron to the threshold of tremendously exciting new studies as the world's most powerful heavy-ion accelerator. In its Bevalac configuration, the machine capitalizes on the coupling of the SuperHILAC to the Bevatron via a 175-meter beam line. The SuperHILAC acts as an injector to… more
Date: January 27, 1977
Creator: Lawrence Berkeley National Laboratory. Accelerator Division.
Partner: UNT Libraries Government Documents Department
open access

Heavy ion facility for radiation therapy

Description: The accelerator requirements of particle radiation therapy are reviewed and a preliminary design of a heavy ion synchrotron for hospital installation is presented. Beam delivery systems and multi-treatment room arrangements are outlined.
Date: March 1, 1977
Creator: Leemann, C.; Alonso, J.; Clark, D.; Grunder, H.; Hoyer, E.; Lou, K. et al.
Partner: UNT Libraries Government Documents Department
open access

3-dimensional beam scanning system for particle radiation therapy

Description: In radiation therapy treatment volumes up to several liters have to be irradiated. Today's charged particle programs use ridge filters, scattering foils, occluding rings collimators and boluses to shape the dose distribution. An alternative approach, scanning of a small diameter beam, is analyzed and tentative systems specifications are derived. Critical components are scheduled for fabrication and testing at LBL.
Date: March 1977
Creator: Leemann, C.; Alonso, J.; Grunder, H.; Hoyer, E.; Kalnins, G.; Rondeau, D. et al.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen