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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
Item Type: Refine your search to only Sound
Partner: UNT College of Information
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.
Item Type: Refine your search to only Article
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.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Three-dimensional imaging with large-area positron cameras

Description: Cameras for nuclear medicine imaging which use the two back-to-back gamma rays from a positron annihilation have the unique property of being able to give images of positron-emitting radionuclide distributions without the use of collimators and the associated large loss of intensity. Cameras with two parallel opposing planar gamma-ray detectors are now commonly used without camera movement to give tomographic images of a number of transverse planes through the positron emitting object. Each of … more
Date: June 1, 1977
Creator: Perez-Mendez, V.; Chang, L. T.; Lenahan, J. P. & Macdonald, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Tuning the beam shaping section of the LAMPF biomedical channel

Description: The Biomedical Channel at LAMPF is used for radiotherapy with negative pi mesons. A discussion is given of the transport properties of the beam-shaping section of the channel. Large emittance beams produced by the first section are matched to specific output requirements by tuning the last five quadrupole magnets using a combination of measurements and calculations.
Date: January 1, 1977
Creator: Paciotti, M. A.; Bradbury, J. N.; Hutson, R. L.; Knapp, E. A. & Rivera, O. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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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.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Potential for heavy particle radiation therapy

Description: Radiation therapy remains one of the major forms of cancer treatment. When x rays are used in radiotherapy, there are large variations in radiation sensitivity among tumors because of the possible differences in the presence of hypoxic but viable tumor cells, differences in reoxygenation during treatment, differences in distribution of the tumor cells in their cell cycle, and differences in repair of sublethal damage. When high-LET particles are used, depending upon the LET distribution, these … more
Date: March 1, 1977
Creator: Raju, M. R. & Phillips, T. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Automatic detection of alternations in pulmonary venous pressure

Description: Image processing and pattern recognition techniques are useful in radiology to aid in the decision making process involving disease patterns in radiographs. The long range goal of this study is to develop a completely automated computer controlled optical system for early detection and classification of prepulmonary edema. This is achieved from chest x-rays by observing and measuring certain patterns of lung vascularity which enable us to characterize the presence and severity of the disease. T… more
Date: January 1, 1977
Creator: Strand, T. C.; Turner, A. F.; Meyers, H. I. & Kruger, R. P.
Item Type: Refine your search to only Article
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.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Low-energy linac structure for PIGMI. [Pion generator for medical irradiations (PIGMI)]

Description: The higher radio frequency (450 MHz) and lower injection energy (250 keV) of the PIGMI (Pion Generator for Medical Irradiations) linac design seriously compound the problem of beam containment in the first few meters of the structure. The conventional quadrupole-focused, drift-tube linac represents the best solution for beam energies above 8 MeV, but because of the small space available for quadrupoles in the PIGMI designs, cannot provide the required focusing at lower energies. A satisfactory … more
Date: January 1, 1977
Creator: Swenson, D. A. & Stovall, J. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

In-phantom spectrometry of medical diagnostic x rays

Description: A program of measurements was made to determine the spectral fluence distributions at locations of significance in a heterogeneous, hominoid phantom exposed to x rays in a manner simulating medical diagnostic radiology. The measurements were made with a specially constructed NaI(Tl) scintillation detector. The detector had a spherically shaped active volume 0.6 cm in diameter. The resolution of this detector was five times worse than that of a more conventional NaI(Tl) spectrometer. Resolution … more
Date: October 1, 1977
Creator: Stansbury, P. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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.
Item Type: Refine your search to only Article
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.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Accelerating and focusing structures for PIGMI. [Pion Generator for Medical Irradiations (PIGMI)]

Description: The National Cancer Institute is supporting a program of accelerator development at the Los Alamos Scientific Laboratory aimed at the extension of proton linac technologies to produce the most suitable Pion Generator for Medical Irradiations (PIGMI). An optimized design of a pion generator suitable for a radiotherapy program at a major medical center has been established, consisting of a 250-keV injector, followed by a 35-meter-long drift-tube linac that accelerates the proton beam to 150 MeV, … more
Date: January 1, 1977
Creator: Swenson, D. A.; Bush, E. D. Jr.; Holsinger, R. F.; Manca, J. J.; Saito, N. & Stovall, J. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nuclear medicine technology progress report for quarter ending June 30, 1977

Description: Formation of the Nuclear Medicine Technology Group within the new Health and Safety Research Division is announced. Progress is reported for the applications of /sup 11/C, /sup 195m/Pt, /sup 33/P, and /sup 123m/Te. Of note in this report is the progress in the microscale synthesis of cis dichlorodiammine-/sup 195m/Pt(II), a direct exchange method for labeling POCL/sub 3/ with /sup 33/P, and the successful synthesis of a /sup 123m/Te-labeled amino acid, DL-..cap alpha..-amino-..gamma..(phenyl te… more
Date: September 1, 1977
Creator: Poggenburg, J. K
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lymphocyte blastogenesis in the diagnosis of tuberculosis in cattle

Description: Considerable progress has been made towards the eradication of tuberculosis in cattle in the United States. No reliable blood test has been developed for detecting infected animals. An in vitro test for tuberculosis must have a high level of sensitivity with adequate specificity to differentiate infections due to Mycobacterium bovis and those caused by other mycobacteria. Moreover, it would be desirable that the test system be simple ad readily automated. The accuracy of lymphocyte immunostimul… more
Date: January 1, 1977
Creator: Thoen, C. O.; Muscoplat, C. C.; Cram, L. S.; Jarnagin, J. L.; Johnson, D. C. & Pietz, D. E.
Item Type: Refine your search to only Article
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.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Publications of LASL research, 1972--1976

Description: This bibliography is a compilation of unclassified work done at the Los Alamos Scientific Laboratory and published during the years 1972 to 1976. Publications too late for inclusion in earlier compilations are also listed. Declassification of previously classified reports is considered to constitute publication. The bibliography includes LASL reports, journal articles, books, conference papers, papers published in congressional hearings, theses, patents, etc. The following subject areas are inc… more
Date: April 1, 1977
Creator: Petersen, Lois
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Article
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.)
Item Type: Refine your search to only Report
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.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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