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67,091 Matching Results

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Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
KINEMATIC DISTRIBUTIONS FOR ELECTRON PAIR PRODUCTION BY MUONS (open access)

KINEMATIC DISTRIBUTIONS FOR ELECTRON PAIR PRODUCTION BY MUONS

None
Date: August 31, 1972
Creator: Linsker, R.
Object Type: Report
System: The UNT Digital Library
Improvements in Radiochemical Analysis and Data Reduction of Environmental Air Samples. (open access)

Improvements in Radiochemical Analysis and Data Reduction of Environmental Air Samples.

None
Date: October 31, 1969
Creator: Sant, W. H.; Garland, T. R. & Roemer, J. J.
Object Type: Report
System: The UNT Digital Library
RESEARCH IN NUCLEAR PHYSICS. Progress Report No. 3, June 1, 1969--May 31, 1970 (open access)

RESEARCH IN NUCLEAR PHYSICS. Progress Report No. 3, June 1, 1969--May 31, 1970

None
Date: December 31, 1970
Creator: Steffen, R M
Object Type: Report
System: The UNT Digital Library
ENVIRONMENTAL MONITORING REPORT, OCTOBER 1, 1960-DECEMBER 31, 1960 (open access)

ENVIRONMENTAL MONITORING REPORT, OCTOBER 1, 1960-DECEMBER 31, 1960

None
Date: October 31, 1961
Creator: unknown
Object Type: Report
System: The UNT Digital Library
IDO REPORT ON THE NUCLEAR INCIDENT AT THE SL-1 REACTOR, JANUARY 3, 1961 AT THE NATIONAL REACTOR TESTING STATION (open access)

IDO REPORT ON THE NUCLEAR INCIDENT AT THE SL-1 REACTOR, JANUARY 3, 1961 AT THE NATIONAL REACTOR TESTING STATION

A summary of activities which took place following an incident at the SL- 1 is presented. No attempt to determine the incident cause is included. A brief description of the SL-1 and the operating program in progress prior to the incident is given along with detailed information on various aspects of the past incident developments. (J.R.D.)
Date: October 31, 1962
Creator: unknown
Object Type: Report
System: The UNT Digital Library
RESEARCH IN NUCLEAR PHYSICS. Final Report, October 1, 1964--September 30, 1967 (open access)

RESEARCH IN NUCLEAR PHYSICS. Final Report, October 1, 1964--September 30, 1967

None
Date: December 31, 1968
Creator: Steffen, R M
Object Type: Report
System: The UNT Digital Library
Evaluation of ultrafiltration membranes for treating low-level radioactive contaminated liquid waste (open access)

Evaluation of ultrafiltration membranes for treating low-level radioactive contaminated liquid waste

A series of experiments were performed on Waste Disposal Facility (WD) influent using Romicon hollow fiber ultrafiltration modules with molecular weight cutoffs ranging from 2000 to 80,000. The rejection of conductivity was low in most cases. The rejection of radioactivity ranged from 90 to 98%, depending on the membrane type and on the feed concentration. Typical product activity ranged from 7 to 100 dis/min/ml of alpha radiation. Experiments were also performed on alpha-contaminated laundry wastewater. Results ranged from 98 to >99.8%, depending on the membrane type. This yielded a product concentration of less than 0.1 dis/min/ml of alpha radiation. Tests on PP-Building decontamination water yielded rejections of 85 to 88% alpha radiation depending on the membrane type. These experiments show that the ability to remove radioactivity by membrane is a function of the contents of the waste stream because the radioactivity in the wastewater is in various forms: ionic, polymeric, colloidal, and absorbed onto suspended solids. Although removal of suspended or colloidal material is very high, removal of ionic material is not as effective. Alpha-contaminated laundry wastewater proved to be the easiest to decontaminate, whereas the low-level PP-Building decontamination water proved to be the most difficult to decontaminate. Decontamination of …
Date: March 31, 1978
Creator: Koenst, J.W. & Roberts, R.C.
Object Type: Report
System: The UNT Digital Library
Progress report on research on human genetics in Iceland (open access)

Progress report on research on human genetics in Iceland

Records of the Icelandic population are being used to investigate the possible inheritance of disabilities and diseases as well as other characteristics and the effect of environment on man. The progress report of research covers the period from 1977 to 1980. The investigation was begun in 1965 by the Genetical Committee of the University of Iceland and the materials used are demographic records from the year 1840 to present and various medical information. The records are being computerized and linked together to make them effective for use in hereditary studies.
Date: October 31, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advances in materials science, Metals and Ceramics Division. Triannual progress report, October 1979-January 1980 (open access)

Advances in materials science, Metals and Ceramics Division. Triannual progress report, October 1979-January 1980

Progress is summarized concerning magnetic fusion energy materials, laser fusion energy, aluminium-air battery and vehicle, geothermal research, oil-shale research, nuclear waste management, office of basic energy sciences research, and materials research notes. (FS)
Date: March 31, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Hydroacoustic Monitoring of Downstream Migrant Salmon and Steelhead at Wells Dam in Spring 1984. (open access)

Hydroacoustic Monitoring of Downstream Migrant Salmon and Steelhead at Wells Dam in Spring 1984.

The downstream migration of salmon and steelhead in spring 1984 at Wells Dam on the mid-Columbia River was monitored using hydroacoustics. The primary objective of this research was to document run timing and describe the distribution of smolts at the dam. The study occurred from April 2 to June 15, 1984. Four transducers were deployed at the bases of pier noses at Turbines 3, 5, 7, and 9 and aimed up 24/sup 0/ into the forebay. They were sampled once every hour, 24 hours per day, for 75 days. An index of fish passage was reported daily to the Water Budget Center in Portland, Oregon. This index was computed as follows. For each 24-h period, separate fish passage rates (number/time) at each of the four sampling locations were estimated by dividing the sum of the ''weighted'' fish detections by total sample time. These four values then were averaged to produced the daily index (number/day/location). The first substantial increase in fish passage occurred on April 25, 1984 due to the chinook released from the Winthrop hatchery on April 23. During May, run timing was fairly uniform except for peaks on May 2, 14, 18, and 22. The unexpected peak in run …
Date: October 31, 1984
Creator: Raemhild, Gary A.
Object Type: Report
System: The UNT Digital Library
Study of selected off-gases produced during the immobilization of nuclear wastes in the SYNROC process. Final report for year ended December 31, 1981. [Pollucite, CsAlSi/sub 2/O/sub 6/, and barium-cesium hollandite, (Ba,Cs)Al/sub 2/Ti/sub 6/O/sub 16/] (open access)

Study of selected off-gases produced during the immobilization of nuclear wastes in the SYNROC process. Final report for year ended December 31, 1981. [Pollucite, CsAlSi/sub 2/O/sub 6/, and barium-cesium hollandite, (Ba,Cs)Al/sub 2/Ti/sub 6/O/sub 16/]

Calculation of possible off-gases expected during the fabrication of SYNROC showed that volatilization of cesium would be a significant problem. Samples of the cesium containing minerals pollucite, CsAlSi/sub 2/O/sub 6/, and barium-cesium hollandite, (Ba,Cs)Al/sub 2/Ti/sub 6/O/sub 16/, were prepared for vaporization studies. Fifteen vaporization runs were made with the hollandite samples. With dry air as the carrier gas, the vapor pressure of cesium over Ba/sub 0/ /sub 8/Cs/sub 0/ /sub 4/Al/sub 2/Ti/sub 6/O/sub 16/ was found to be about 1 x 10/sup -7/ atm at 1050/sup 0/C.
Date: December 31, 1981
Creator: Carpenter, J.H.
Object Type: Report
System: The UNT Digital Library
CsAlSi/sub 5/O/sub 12/: a possible host for /sup 137/Cs immobilization (open access)

CsAlSi/sub 5/O/sub 12/: a possible host for /sup 137/Cs immobilization

CsAlSi/sub 5/O/sub 12/ exhibits more acid resistance than pollucite (CsAlSi/sub 2/O/sub 6/). At pH values of 1.02 and 1.40, the extraction of Cs from CsAlSi/sub 5/O/sub 12/ at 25/sup 0/C was approximately proportional to the square root of leach time. The Cs extraction at 25/sup 0/C varied as (H/sup +/)/sup 0/ /sup 36/ over the pH range of 1 to 6. Also, the Cs extraction in various brines at 300/sup 0/C/30 MPa was comparable with that for pollucite. CsAlSi/sub 5/O/sub 12/ can be crystallized at about 1000/sup 0/C from calcines if a small amount of CaO is present, but in the absence of such sintering acids, crystallization temperatures of about 1400/sup 0/C are necessary. Compatibility data were also obtained with respect to several other phases with which CsAlSi/sub 5/O/sub 12/ might be expected to coexist in tailored ceramics designed for high-level defense waste.
Date: March 31, 1982
Creator: Adl, T. & Vance, E.R.
Object Type: Report
System: The UNT Digital Library
Silicon on ceramic process. Silicon sheet growth for Large-Area Silicon Sheet Task of the Low-Cost Solar Array Project. Annual report No. 4, September 29, 1978-September 30, 1979 (open access)

Silicon on ceramic process. Silicon sheet growth for Large-Area Silicon Sheet Task of the Low-Cost Solar Array Project. Annual report No. 4, September 29, 1978-September 30, 1979

The objective of this research program is to investigate the technical and economic feasibility of producing solar-cell-quality sheet silicon by coating one surface of carbonized ceramic substrates with a thin layer of large-grain polycrystalline silicon from the melt. The effort is divided into several areas of investigation in order to most efficiently meet the goals of the program. These areas include: (1) dip-coating; (2) continuous coating; (3) material characterization; (4) cell fabrication; and (5) theoretical analysis. Progress in all areas of the program is reported in detail. (WHK)
Date: October 31, 1979
Creator: Chapman, P W; Zook, J D; Heaps, J D; Koepke, B; Grung, B L & Schuldt, S B
Object Type: Report
System: The UNT Digital Library
INVESTIGATION OF THE TECHNICAL FEASIBILITY OF COLD EXTRUSION FOR ZIRCALOY-2 TUBING PRODUCTION. Quarterly Technical Progress Report, July-September, 1961 (open access)

INVESTIGATION OF THE TECHNICAL FEASIBILITY OF COLD EXTRUSION FOR ZIRCALOY-2 TUBING PRODUCTION. Quarterly Technical Progress Report, July-September, 1961

Bar-extrusion tests were performed at 50. 65, and 80% reductions at room temperature and 300 deg C. Tensile tests were conducted on as-extruded and heat-treated specimens. The results are tabulated for comparison. The extrusion of small tubing, 0.560-in. OD x 0.030-in. wall, in the first and second tube- extrusion steps are described. (B.O.G.)
Date: October 31, 1962
Creator: Weil, F.E. & Hill, J.G.
Object Type: Report
System: The UNT Digital Library
The Simultaneous Measurement of X-Ray Quality and Quantity Using TLD (open access)

The Simultaneous Measurement of X-Ray Quality and Quantity Using TLD

None
Date: October 31, 1969
Creator: Ort, M. G. & Cameron, J. R.
Object Type: Report
System: The UNT Digital Library
Apparatus for simultaneously measuring electrical conductivity and oxygen fugacity (open access)

Apparatus for simultaneously measuring electrical conductivity and oxygen fugacity

Electrical conductivity studies of silicates are useful in determining temperature vs depth in the earth. Realistic laboratory measurements of conduction mechanisms require that exact determinations of oxygen fugacity (fo{sub 2}) be made in the experimental environment. An apparatus is described that monitors system fo{sub 2} with a calcia-doped zirconia-oxygen cell while measuring electrical conductivity of iron-bearing silicates at high temperature (greater than 1000 K). The fo{sub 2} calculated thermodynamically from CO/CO{sub 2} mixing ratios agreed well with measurements made with the zirconia cell at 1473 K, except for fo{sub 2} greater than 10{sup -4} Pa, where, on a log{sub 10} scale, mixing-ratio errors were as large as +- 0.2. These errors are attributed to oxygen contamination in the CO{sub 2} and to mobile carbon deposits that formed in the apparatus.
Date: January 31, 1978
Creator: Netherton, R. & Duba, A.
Object Type: Report
System: The UNT Digital Library
NONDESTRUCTIVE TESTING OF ISOTOPE CONTAINMENT CAPSULES: REMOTE ULTRASONIC TEST STATION UT-40. (open access)

NONDESTRUCTIVE TESTING OF ISOTOPE CONTAINMENT CAPSULES: REMOTE ULTRASONIC TEST STATION UT-40.

None
Date: October 31, 1969
Creator: Steffens, R. W. & Coffman, F. M.
Object Type: Report
System: The UNT Digital Library
BOILING NUCLEAR SUPERHEATER (BONUS) POWER STATION. Supplementary Study. Extrapolation to Large Central Station Integral Nuclear Superheat Plant (open access)

BOILING NUCLEAR SUPERHEATER (BONUS) POWER STATION. Supplementary Study. Extrapolation to Large Central Station Integral Nuclear Superheat Plant

An evaluation was made of the maximum size plant for which the BONUS reactor plant could serve as a realistic prototype and the design changes required to increase the size and characteristics for the present BONUS design such that it could serve as a realistic prototype for the largest feasible integral-superheat reactor power plant. (M.C.G.)
Date: October 31, 1962
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Teratology studies of lewisite and sulfur mustard agents: Effects of lewisite in rats and rabbits: Final report (open access)

Teratology studies of lewisite and sulfur mustard agents: Effects of lewisite in rats and rabbits: Final report

Lewisite was administered to rats and rabbits by intragastric intubation. Maternal animals were weighed periodically, and, at necropsy (20 dg (days of gestation) in rats and 30 dg in rabbits), were examined for gross lesions of major organs and reproductive performances; live fetuses were weighed and examined for external, internal and skeletal defect. In rats, a dose level of 1.5 mg/kg did not induce toxic or teratogenic responses in maternal and fetal body weights and a significant reduction in the number if viable fetuses were evident. In rabbit studies maternal mortality occurred in all but one of the lewisite treatment groups and ranged from 13% to 100% at dose levels of 0.07 and 1.5 mg/kg, respectively. This mortality rate limited the sample size and impaired the detection of statistical significance among treatments. However, at the lowest dose level of the teratology study (0.07 mg/kg, maternal mortality was the only indicator of lewisite toxicity; at the highst dose (0.6 mg/kg), significant findings included 86% maternal mortality, a decrease in maternal body weight gains and an increase in the incidence of fetal stunting, although only a tendency in decreased fetal body weights was observed. These results suggest that maternal mortality was the …
Date: December 31, 1987
Creator: Hackett, P L; Sasser, L B; Rommereim, R L; Cushing, J A; Buschbom, R L & Kalkwarf, D R
Object Type: Report
System: The UNT Digital Library
SECOND SYMPOSIUM ON PHYSICS AND NONDESTRUCTIVE TESTING, HELD AT ARGONNE NATIONAL LABORATORY OCTOBER 3-5, 1961 (open access)

SECOND SYMPOSIUM ON PHYSICS AND NONDESTRUCTIVE TESTING, HELD AT ARGONNE NATIONAL LABORATORY OCTOBER 3-5, 1961

Thirteen papers are included; separate abstracts have been prepared for each. Abstracts of two papers on some optical and electrical properties of materials and nondestructive testing of reactor irrcdiated metals are also included. These two abstracts are not included in NSA. (N.W.R.)
Date: October 31, 1962
Creator: di Novi, R.A. ed.
Object Type: Report
System: The UNT Digital Library
Thermionic Isotopic Power Systems SNAP Programs. Quarterly Progress Report No. 7, Covering Period April 1 Through June 30, 1961 (open access)

Thermionic Isotopic Power Systems SNAP Programs. Quarterly Progress Report No. 7, Covering Period April 1 Through June 30, 1961

An extensive parametric study of cesium-filled converters was completed during the quarter. Cesium-filled test units Nos. 2 and 3 were designed and constructed, and Unit 1 is 85% complete. The prototype vacuum thermionic converter, Unit 2B, was subjected to dynamic testing following its failure due to emitter poisoning. The analysis and design of the curium fuel capsule were completed. (auth)
Date: October 31, 1961
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Applied Mathematics Division Summary Report, July 1, 1967-June 30, 1968. (open access)

Applied Mathematics Division Summary Report, July 1, 1967-June 30, 1968.

The Applied Mathematics Division has two objectives: to conduct research in applied mathematics, numerical analysis, theory and practive of computation, and design of computer and information processing equipment; to provide mathematiccal, computer programming, and computational support for the research and development programs of the Laboratory.
Date: October 31, 1969
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Summary Technical Report on Feed Materials for the Period July 1, 1962 to September 30, 1962 (open access)

Summary Technical Report on Feed Materials for the Period July 1, 1962 to September 30, 1962

None
Date: October 31, 1962
Creator: Burgett, R.
Object Type: Report
System: The UNT Digital Library
NUCLEAR SUPERHEAT PROJECT SEVENTH QUARTERLY PROGRESS REPORT, JANUARY-MARCH 1961 (open access)

NUCLEAR SUPERHEAT PROJECT SEVENTH QUARTERLY PROGRESS REPORT, JANUARY-MARCH 1961

Progress and results from the conceptual design, economic evaluations, and research and development work performed as part of the Nuclear Superheat Project are reported. Developments in conceptual design and program evaluation, fuel technology, materials development, experimental physics, coolant chemistry, heat transfer, mechanical development, SADE, and mixed spectrum superheat design are discussed. (M.C.G.)
Date: October 31, 1961
Creator: Pennington, R.T.
Object Type: Report
System: The UNT Digital Library