UNT Libraries Government Documents Department - 26 Matching Results

Search Results

Results: 1 - 24 next
open access

Nuclear Heat Source for Cryogenic Refrigerators in Space

Description: To supply the heat input required by space-borne Vuilleumier refrigerators, a possible design for a reliable Pu-238 radioisotope heat source, based on state-of-the-art technology, is described. The isotope heat source would replace electrical heaters powered by solar panels and batteries, and would be adaptable to existing VM refrigerators without redesign. The heat source contains all necessary safety features, and also a simple thermal control system to permit refrigerator shut-down for indef… more
Date: May 21, 1975
Creator: Raab, B.; Schock, Alfred & King, W.
Item Type: Refine your search to only Report
open access

Effect of energy dependence on the evaluations of albedo neutron dosimeters

Description: Albedo neutron dosimeters have proven to be effective as a method of measuring the dose from low-energy neutrons that other types of personnel neutron dosimeters do not detect. Many albedo neutron dosimeters have been designed, and some are being used extensively. All albedo neutron dosimeters are energy- dependent, becoming less sensitive as the energy of the neutrons is increased. In this paper the energy dependence and the effect it has on the evaluation of the dose are discussed. Numerous m… more
Date: November 21, 1975
Creator: Hankins, D.E.
Item Type: Refine your search to only Article
open access

Ambient environmental radiation monitoring at the Lawrence Livermore Laboratory

Description: Thermoluminescence dosimetry is the principal means of measuring ambient $gamma$ radiation at the Lawrence Livermore Laboratory. These dosimeters are used at 12 perimeter locations and 41 locations in the off-site vicinity of the Laboratory, and are exchanged quarterly. Control dosimeters are stored in a 75- mm-thick lead shield located out-of-doors to duplicate temperature cycling of field dosimeters. Effect of dosimeter response to radiation in the shield is determined each quarter. Calibrati… more
Date: November 21, 1975
Creator: Lindeken, C.L.; White, J.H.; Toy, A.J. & Sundbeck, C.W.
Item Type: Refine your search to only Article
open access

Studies of neutron dissociation at FermiLab energies

Description: The characteristics of diffraction dissociation of neutrons into p$pi$$sup -$ systems at high energies were examined. A substantial correlation is observed between the mass and the t of the produced system. The spin structure of the p$pi$$sup -$ amplitudes at low mass is very complex, but is described surprisingly well by the simple Deck Mechanism. Both $pi$-exchange and proton-exchange contributions are evident in diffractive production. The t- channel and s-channel helicity amplitudes contain… more
Date: August 21, 1975
Creator: Ferbel, T.
Item Type: Refine your search to only Report
open access

Comparison of gamma-ray exposure rate measurements at Bikini Atoll

Description: A radiological survey of Bikini and Eneu Islands of the Bikini Atoll was conducted during June 1975 to assess the potential radiation doses that may be received by the returning Bikinians. Bikini Atoll was one of the U.S. nuclear weapons testing sites in the Pacific. An integral part of the survey included measurements of the gamma-ray exposure rates at 1 m above the ground with portable NaI instruments at nearly 2700 locations on the two islands. For comparison purposes, similar measurements w… more
Date: November 21, 1975
Creator: Gudiksen, Paul H. & Crites, Thomas R.
Item Type: Refine your search to only Article
open access

Decommissioning of Division of Military Application equipment at Richland Operations Office for period ending March 31, 1975

Description: The scope of the decommissioning work provides for (1) the removal of all Division of Military Application (DH) fabrication and inspection equipment held in standby status in the 234-5Z Building, (2) disposition of all contaminated equipment and materials removed by packaging for 20-year retrievable storage, (3) reclamation of salvageable materials and equipment for use on site by other Energy Research and Development Administration contractors, and (4) restoration of cleared-out areas for othe… more
Date: April 21, 1975
Item Type: Refine your search to only Report
open access

Decommissioning of Division of Military Application equipment at Richland Operations Office for period ending June 30, 1975

Description: Decommissioning of the DMA facilities is estimated at 65% complete compared to 60% forecast at the start of the program in April 1974. The transfer of 12 transuranic boxes to 20-year retrievable storage this quarter brings the total to date to 26, and includes all of the inspection area glove boxes and conveyor sections, four A-Line and two C-Line glove boxes, along with all auxiliary hydraulic equipment pumps, and piping serving the three areas. Removal of additional A-Line and C-Line conveyor… more
Date: July 21, 1975
Item Type: Refine your search to only Report
open access

Crimes against the Elderly

Description: This report discusses the problem faced by the elderly- criminal victimization of the elderly. It also lists out some reasons why the crimes against the elderly seem to be happening.
Date: October 21, 1975
Creator: Puls, Barbara
Item Type: Refine your search to only Report
Back to Top of Screen