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Deexcitation processes in nuclear reactions. Progress report, May 1, 1976--July 31, 1977. [Summaries of research activities at Purdue University]

Description: A number of nuclear reaction studies are in progress. Measurements of the energy dependence of recoil properties of /sup 131/Ce, /sup 131/La, and /sup 131/Ba formed in the interaction of /sup 238/U with 0.8-400 GeV protons are described. Preliminary results on the angular distribution and differential ranges of Sc and Ba nuclides formed in the interaction of /sup 238/U with 0.8, 3.0, and 11.5 GeV protons are given. Preliminary angular distribution measurements of products formed in the interact… more
Date: August 1, 1977
Creator: Porile, N. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Use of total beta counts to estimate GI tract dose rates

Description: It was the practice for several years to estimate the potential dose rate to the gastrointestinal from sanitary water sources by evaluating the results of radiochemical analysis of individual nuclides. The proposed method estimates the GI tract dose from Pasco and Richland domestic water from measurements of the total beta activity, and permits more frequent and more economical evaluation of a variable source of radiation exposure. Beginning with 1964 data, the GI tract dose rate for Richland a… more
Date: October 25, 1965
Creator: Hall, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of neutron dose from criticality accidents with bioassays for sodium-24 in blood and phosphorus-32 in hair

Description: A comprehensive review of accident neutron dosimetry using blood and hair analysis was performed and is summarized in this report. Experiments and calculations were conducted at Oak Ridge National Laboratory (ORNL) and the University of Tennessee (UT) to develop measurement techniques for the activity of {sup 24}Na in blood and {sup 32}P in hair for nuclear accident dosimetry. An operating procedure was established for the measurement of {sup 24}Na in blood using an HPGe detector system. The se… more
Date: June 1, 1993
Creator: Feng, Y.; Miller, L. F.; Brown, K. S.; Casson, W. H.; Mei, G. T. & Thein, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconstruction of radionuclide concentrations in the Columbia River from Hanford, Washington to Portland, Oregon, January 1950--January 1971. Hanford Environmental Dose Reconstruction Project

Description: Battelle, Pacific Northwest Laboratories conducted this study of the Columbia River for the Technical Steering Panel (TSP) and the Centers for Disease Control and Prevention as part of the Hanford Environmental Dose Reconstruction (HEDR) Project. The HEDR Project was established to estimate the radiation dose that individuals may have received from operations that began at the Hanford Site in 1944. The purpose of the study was to reconstruct concentrations of radionuclides in Columbia River wat… more
Date: May 1, 1994
Creator: Walters, W. H.; Gilmore, B. G. & Richmond, M. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An anion exchange-precipitation procedure for the determination of Na{sup 24} in reactor effluent water

Description: The isotope Na{sup 24} is one of the major short half-life constituents of reactor effluent water. It has a half-life of 15 hours and decays of emission of a 1.39 MeV maximum beta particle. Other radioisotopes present in reactor effluent water from which Na{sup 24} must be separated are Si{sup 31}, P{sup 32}, Mn{sup 56}, Cu{sup 64}, As{sup 76}, Sr{sup 91--92}, Ba{sup 139--140} and rare earths. This report describes a rapid and very simple method for the quantitative determination of Na{sup 24} … more
Date: August 10, 1955
Creator: Perkins, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hanford Environmental Dose Reconstruction Project Monthly Report

Description: This monthly report summarizes the technical progress and project status for the Hanford Environmental Dose Reconstruction (HEDR) Project being conducted at the Pacific Northwest Laboratory (PNL) under the direction of a Technical Steering Panel (TSP). The TSP is composed of experts in numerous technical fields related to this project and represents the interests of the public. The objective of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation doses that populat… more
Date: October 1990
Creator: Finch, S. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Impact of radionuclides on maintenance of Experimental Breeder Reactor II

Description: More than 20 years of Experimental-Breeder-Reactor-II (EBR-II) operation has demonstrated the capability to maintain radioactive equipment without undue radiation exposure to operating and maintenance personnel. The dominant radioisotopes in EBR-II primary systems are the activated corrosion product /sup 54/Mn and the fission products /sup 90/Sr and /sup 137/Cs. The presence of radioisotopes from direct activation, deposit of activated corrosion products, and release of fission products from br… more
Date: January 1, 1985
Creator: Olson, W. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Phase 1 of the Hanford Environmental Dose Reconstruction Project

Description: This report summarizes the water pathway portion of the first phase of the Hanford Environmental Dose Reconstruction (HEDR) Project, conducted by Battelle staff at the Pacific Northwest Laboratory under the direction of an independent Technical Steering Panel. The HEDR Project is estimating radiation doses that could have been received by the public from the Department of Energy's Hanford Site, in southeastern Washington State. Phase 1 of the water-pathway dose reconstruction sought to det… more
Date: July 20, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of total beta counts to estimate GI tract dose rates

Description: It was the practice for several years to estimate the potential dose rate to the gastrointestinal from sanitary water sources by evaluating the results of radiochemical analysis of individual nuclides. The proposed method estimates the GI tract dose from Pasco and Richland domestic water from measurements of the total beta activity, and permits more frequent and more economical evaluation of a variable source of radiation exposure. Beginning with 1964 data, the GI tract dose rate for Richland a… more
Date: October 25, 1965
Creator: Hall, R.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gamma-Ray to Cerenkov-Light Conversion Efficiency for Pure-Silica-Core Optical Fibers

Description: We have determined experimentally the absolute gamma-ray to Cerenkov-light conversion efficiency for pure-silica-core optical fibers in the vicinity of metallic Compton-converter slabs. To measure the energy dependence of this process, we used /sup 60/Co and /sup 24/Na radiation sources. The results show how the conversion efficiency varies with Compton-converter material, thickness, angle of the fiber, and fiber-converter distance. We also performed computer calculations of conversion efficien… more
Date: July 1, 1984
Creator: Pruett, B. L.; Peterson, R. T.; Smith, D. E.; Looney, L. D. & Shelton, R. N., Jr.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Unusual behavior of projectile fragments formed in the bombardment of copper with relativistic Ar ions

Description: The interaction properties of projectile fragments from the fragmentation of 0.9 A GeV and 1.8 A GeV /sup 40/Ar with Cu have been studied using radioactivation techniques. Projectile fragments formed in the interaction of the primary Ar beam with a thick Cu disk (the target disk) interacted with a second detector Cu disk. The relative reaction product yields in the two disks were measured as a function of the separation between the disks. A large increase in the yield of deep spallation product… more
Date: November 1, 1984
Creator: Dersch, G.; Beckmann, R.; Feige, G.; Lund, T.; Vater, P.; Brandt, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Estimates of Columbia River radionuclide concentrations: Data for Phase 1 dose calculations

Description: Pacific Northwest Laboratory is conducting the Hanford Environmental Dose Reconstruction Project to estimate the radiation doses people may have received from historical Hanford Site operations. Under the direction of an independent Technical Steering Panel, the project is being conducted in phases. The objective of the first phase is to assess the feasibility of the project-wide technical approach for acquiring data and developing models needed to calculate potential radiation doses. This repo… more
Date: May 1, 1991
Creator: Richmond, M. C. & Walters, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dosimetry of criticality accidents using activations of the blood and hair

Description: The evaluation of the dose that a person received in a criticality accident can be difficult. Most accidents have occurred when the person was not wearing nuclear accident dosimetry and since the NRC no longer requires these dosimeters, future dose evaluations may have to be based on body activations and gamma-to-neutron dose ratios. To aid in a dose evaluation we have compiled in a table the results from numerous criticality accident studies using 10 different critical assemblies, each with di… more
Date: January 1, 1980
Creator: Hankins, D.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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RADIOLOGICAL HAZARDS FROM RUPTURE OF THE SECONDARY COOLANT SYSTEM OF THE 10 Mw ESCR

Description: The hazards study was made to determine the radiation level from the secondary sodium lines of the l0-Mw ESCR, and to evaluate the corresponding radioactive concentration in the secondary loop and the maximum permissible effective activation flux in the intermediate heat exchanger. The results are presented graphicallyn the radiation level from the coolant lines during normal operation as a function of line diameter and Na/sup 4/ concentration; the effective thermal neutron activation flux leve… more
Date: January 19, 1960
Creator: Piccot, A.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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RADIOACTIVITY OF NUCLEAR REACTOR COOLING FLUIDS

Description: Methods were developed for analysis of cooling water for impurities, radioisotopes, etc., and experimental results are presented for the ORNL Research Reactor. The theory of nuclear reactions in a water-cooled reactor is discussed at length, and equations were developed which allows predictions of equilibrium conditions from nonequilibrium measurements. The equations were verified experimentally by work on the ORNL Research Reactor and can be extended to other reactors. The origins of Na/sup 24… more
Date: October 1, 1961
Creator: Ward, J.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ejection of Large Fragments in High-Energy Nuclear Reactions

Description: Several features of the production of Na/sup 24/ and Mg/sup 28/ fragments produced in the interaction of protons and He ions with Cu, Ag, Au, and U were investigated. Formation cross sections were determined for He ions of different energies between 320 and 880 Mev and for protons of 700 Mev. Thick- target recoil experiments were performed at bombarding energies of 0.7 and 3 Bev for protons, and 880 Mev for He ions. Also given are some recoil measurements of Na/sup 24/ from Al. Analysis of data… more
Date: September 1, 1961
Creator: Crespo, V. P.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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SPALLATION OF ALUMINUM BY 28-Gev PROTONS

Description: In the bombardment of Al foils with 28-Bev protons the following cross sections (in mb) for production of the indicated nuclides were obtained: Be/sup 7/ , 7.9 plus or minus 0.5; F/sup 18/, 6.0 plus or minus 0.3; C/sup 11/, 4.7 plus or minus 0.2; Na/sup 22/, 9.8 plus or minus 0.6. N/sup 13/, 1.18 plus or minus 0.07; Na/su p 24/, 8.3 plus or minus 0.5; O/sup 15/, 3.6 plus or minus 1.0, Mg/sup 27/, 0.067 plus or minus 0.006. An upper limit for the Ne/ sup 24/ eross section of 0.6 mb was obtained.… more
Date: August 1, 1962
Creator: Cumming, J. B.; Friedlander, G.; Hudis, J. & Poskanzer, A. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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THE MEASUREMENT OF RADIATION EXPOSURE OF ASTRONAUTS BY RADIOCHEMICAL TECHNIQUES. DETERMINATION OF THE RADIONUCLIDE CONTENT OF FECES AND URINE FROM ASTRONAUTS ENGAGED IN SPACE FLIGHT. Quarterly Research Report to the NASA Manned Spacecraft Center, April 8--June 30, 1969.

Description: No Description Available.
Date: January 1, 1969
Creator: Brodzinski, R.L.; Palmer, H.E. & Rancitelli, L.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear Reactions Induced by Pions and Protons

Description: Effects due to elementary particle-like collisions within nuclear matter have been observed in several nuclear reactions caused by pions and protons. Simple nuclear reactions of the form ZA(a,an)Z/sup A-1/ and Z/sup A/(a,ap)(Z-1)/ sup A-1/ have excitation functions that are sensitive to changes in the elementary-particle cross sections. The excitation function for the reaction C/ sup 12/( pi /sup -/, pi /sup -/n)C/sup 11/ is measure d from 53 to 1610 Mev by bombarding targets of plastic scintil… more
Date: November 27, 1962
Creator: Reeder, P. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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