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  Partner: UNT Libraries Government Documents Department
 Decade: 1970-1979
 Language: English
1.1-meter bore, 8-Tesla test facility

1.1-meter bore, 8-Tesla test facility

Date: November 19, 1975
Creator: Nelson, R.; Cornish, D.; Zbasnik, J.; Sackett, S. & Taylor, C.
Description: The design and fabrication of a 1.1-m bore superconducting coil for an 8- T facility at Lawrence Livermore Laboratory are discussed. This facility will provide the backing field required for testing large multifilamentary Nb$sub 3$Sn coils as part of the superconductor development program at Livermore. The magnet measures 1.85 m o.d., is 1.5 m in length, and is solenoid wound in four separate modules. Total cold weight of the assembly is 18,000 Kg. A NbTi superconductor is used throughout with a gradation of current density within the magnet to provide complete cryostatic stability. The preliminary design of a large 3500-A multifilamentary Nb$sub 3$Sn insert magnet is also included. Together, the backing coil and insert magnets are designed to produce a 12-T central field in a 0.4m bore. The ''equal area'' theory of cryostatic stability is applied in the design of both magnet systems and is discussed in detail. A large open-mouth cryostat is used and measures 2 m in diameter and 3.7 m in length. Details of Dewar design and the refrigeration requirements are included. (auth)
Contributing Partner: UNT Libraries Government Documents Department
1.06 $mu$m 150 psec laser damage study of diamond turned, diamond turned/ polished and polished metal mirrors

1.06 $mu$m 150 psec laser damage study of diamond turned, diamond turned/ polished and polished metal mirrors

Date: July 24, 1975
Creator: Saito, T.T.; Milam, D.; Baker, P. & Murphy, G.
Description: Using a well characterized 1.06 $mu$m 150 ps glass laser pulse the damage characteristics for diamond turned, diamond turned/ polished, and polished copper and silver mirrors less than 5 cm diameter were studied. Although most samples were tested with a normal angle of incidence, some were tested at 45$sup 0$ with different linear polarization showing an increase in damage threshold for S polarization. Different damage mechanisms observed will be discussed. Laser damage is related to residual surface influences of the fabrication process. First attempts to polish diamond turned surfaces resulted in a significant decrease in laser damage threshold. The importance of including the heat of fusion in the one dimensional heat analysis of the theoretical damage threshold and how close the samples came to the theoretical damage threshold is discussed. (auth)
Contributing Partner: UNT Libraries Government Documents Department
4-inch sample recovery canisters, Test Model D series. Final report, September 1969--May 1970

4-inch sample recovery canisters, Test Model D series. Final report, September 1969--May 1970

Date: 1970
Creator: Goode, P. L. & Neff, G. W.
Description: Six tests were conducted on 4-Inch Test Model D Closures to develop an improved closure for the redesigned Sandia Recovery Canister (SRC). The first three closures tested used variations of the high explosive (HE) design used on the previous Model B (Second) Series (P64283). The last three units tested used variations of the HE design used in the Midi Mist Event SRC.
Contributing Partner: UNT Libraries Government Documents Department
14'' x 17'' film recorder for computer-enhanced scans

14'' x 17'' film recorder for computer-enhanced scans

Date: January 1, 1976
Creator: Morris, A.C. Jr.; Barclay, T.R.; Akin, T.E.; Hansard, M.C.; Gibbs, W.D. & Modzelewski, C.U.
Description: Physician acceptance of computer-enhanced radionuclide scan results, presented in the form of small Polaroid pictures, has been very limited for a number of subjective reasons. A new recorder was designed and constructed that presents the results of computer augmented scans through a medium that is quite familiar to doctors, the standard 14 in. x 17 in. x-ray film. (auth)
Contributing Partner: UNT Libraries Government Documents Department
15-foot bubble chamber characteristics

15-foot bubble chamber characteristics

Date: September 15, 1975
Creator: Huson, F.R.
Description: Specifications, operation, characteristics, cost, and experience with the NAL 15-ft bubble chamber are described. Beam availability and some experimental proposals are discussed. (WHK)
Contributing Partner: UNT Libraries Government Documents Department
15 MeV neutron damage in Cu and Nb

15 MeV neutron damage in Cu and Nb

Date: January 1, 1975
Creator: Roberto, J.B.; Narayan, J. & Saltmarsh, M.J.
Description: An investigation was made of high-energy neutron damage in Cu and Nb irradiated with approximately 15 MeV neutrons at the Oak Ridge Isochronous Cyclotron. The neutrons were generated by bombarding a thick Be target with 40- MeV deuterons resulting in a high energy neutron spectrum broadly peaked at 15 MeV. Single crystals of Cu and Nb were irradiated at room temperature to fluences of approximately 2 x 10$sup 17$ n/cm$sup 2$. The resulting loop-type defect clusters in the crystals were characterized using x-ray diffuse scattering and transmission electron microscopy. The cluster size distributions were found to be generally similar to those characteristic of fission neutron irradiations in these materials and no multiple clusters or sub-clusters were observed. Additional comparisons with fission reactor irradiations in Cu and Nb indicate that the retained displacement damage in these crystals is approximately 3 times greater for the high-energy neutrons than for an equivalent fluence of fission neutrons. This result is consistent with detailed damage energy calculations for the Be(d,n) neutron spectrum. (auth)
Contributing Partner: UNT Libraries Government Documents Department
40-MW(E) PROTOTYPE HIGH-TEMPERATURE GAS-COOLED REACTOR POSTCONSTRUCTION RESEARCH AND DEVELOPMENT PROGRAM. Quarterly Progress Report for the Period Ending April 30, 1970.

40-MW(E) PROTOTYPE HIGH-TEMPERATURE GAS-COOLED REACTOR POSTCONSTRUCTION RESEARCH AND DEVELOPMENT PROGRAM. Quarterly Progress Report for the Period Ending April 30, 1970.

Date: January 1, 1970
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
40-MW(e) PROTOTYPE HIGH-TEMPERATURE GAS-COOLED REACTOR POSTCONSTRUCTION RESEARCH AND DEVELOPMENT PROGRAM. Quarterly Progress Report for the Period Ending July 31, 1970.

40-MW(e) PROTOTYPE HIGH-TEMPERATURE GAS-COOLED REACTOR POSTCONSTRUCTION RESEARCH AND DEVELOPMENT PROGRAM. Quarterly Progress Report for the Period Ending July 31, 1970.

Date: January 1, 1970
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
40-MW(E) PROTOTYPE HIGH-TEMPERATURE GAS-COOLED REACTOR POSTCONSTRUCTION RESEARCH AND DEVELOPMENT PROGRAM. Quarterly Progress Report for the Period Ending October 31, 1970.

40-MW(E) PROTOTYPE HIGH-TEMPERATURE GAS-COOLED REACTOR POSTCONSTRUCTION RESEARCH AND DEVELOPMENT PROGRAM. Quarterly Progress Report for the Period Ending October 31, 1970.

Date: January 1, 1970
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
100 mg $sup 251$Cf activation analysis facility at the Savannah River Laboratory

100 mg $sup 251$Cf activation analysis facility at the Savannah River Laboratory

Date: January 1, 1975
Creator: MacMurdo, K.W. & Bowman, W.W.
Description: The $sup 252$Cf Activation Analysis Facility at the Savannah River Laboratory (SRL) is used routinely for multielement analyses of a wide variety of solid and liquid samples (e.g., metal alloys, fly ash and other airborne particles, rocks, and aqueous and nonaqueous solutions). An automated absolute activation analysis technique, developed to use neutron transport codes to calculate multienergy group neutron spectra and fluxes, converts counting data directly into elemental concentrations expressed in parts per million. The facility contains four sources of $sup 252$Cf totaling slightly over 100 mg. A pneumatic ''rabbit'' system permits automatic irradiation/decay/counting regimes to be performed unattended on up to 100 samples. Detection sensitivities of less than or equal to 400 ppb natural uranium and less than or equal to 0.5 nCi/g for $sup 239$Pu are observed. Detection limits for over 65 elements have been determined. Over 40 elements are detectable at the one part per million level or less. Overall accuracies of +- 10 percent are observed for most elements. (auth)
Contributing Partner: UNT Libraries Government Documents Department
100-MHz power amplifier design and control for a heavy-ion accelerator

100-MHz power amplifier design and control for a heavy-ion accelerator

Date: July 1975
Creator: Lunsford, J. S.; Shipley, J. P. & Sutton, J.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
120 kA pulsed dc power system with computerized thyristor triggering

120 kA pulsed dc power system with computerized thyristor triggering

Date: January 1, 1975
Creator: Mosko, S.W.; Bates, D.D.; Bigelow, R.R.; Cottongim, E.K.; Pipes, E.W. & Sueker, K.
Description: A pulsed dc power system provides 120 kA excitation current for the ORMAK toroidal field coils. A drive potential of 1000 volts brings the coils up to full current in about 0.5 seconds. Constant current is maintained for 0.25 seconds, then approximately 20 x 10$sup 6$ joules of stored energy is dumped in a free-wheeling diode and resistance network. The power system contains 8 each, 30 kA, 500 V thyristor controlled dc power modules in a series/parallel combination. A control computer generates thyristor trigger pulses in a programmed sequence as required for the desired duty cycle. A feedback network including current sensing and computer software permits trigger timing adjustments as necessary for constant current operation. (auth)
Contributing Partner: UNT Libraries Government Documents Department
150 MeV proton medical cyclotron design study

150 MeV proton medical cyclotron design study

Date: August 1, 1975
Creator: Burleigh, R.J.; Clark, D.J. & Flood, W.S.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
200-GeV proton-proton elastic scattering at high transverse momentum

200-GeV proton-proton elastic scattering at high transverse momentum

Date: June 1, 1970
Creator: Ratner, L.G.; /Argonne; Krisch, A.D.; Roberts, J.B.; Terwilliger, K.M. & U., /Michigan
Description: This is a proposal to study p-p elastic scattering at the highest possible P{sub {perpendicular}}{sup 2} at NAL, using a CH{sub 2} or H{sub 2} target placed directly in the extracted beam and a double arm spectrometer. We expect to be able to set an upper limit at the level d{sigma}/dt/d{sigma}/dt{sub t=0} {approx} 10{sup -14}. This would be sufficient to determine if there are exactly three regions in the p-p interaction with considerable precision.
Contributing Partner: UNT Libraries Government Documents Department
200 kW, 800 MHz transmitter system for lower hybrid heating

200 kW, 800 MHz transmitter system for lower hybrid heating

Date: January 1, 1975
Creator: Deitz, A.
Description: This paper describes a new rf heating system which has just been completed and is now operational on the ATC machine. The system utilizes four UHF TV klystrons to generate at least 200 kW of power at a frequency of 800 MHz. Pulse widths can be varied from 20 $mu$sec up to 20 msec. A radar type floating deck modulator along with photo-optical transmitting and receiving devices have been incorporated into the system to provide the pulse fidelity and versatility which characterizes this equipment. Modular construction was emphasized in the design, when possible, to reduce maintenance and down time in the advent of component falilure. Hybrid combining techniques are utilized in order to provide two 100 kW feeds into the machine. (auth)
Contributing Partner: UNT Libraries Government Documents Department
A 218 neutron group master cross section library for criticality safety studies

A 218 neutron group master cross section library for criticality safety studies

Date: January 1, 1975
Creator: Ford, W.E. III; Westfall, R.M. & Webster, C.C.
Description: The AMPX system was used to generate a P$sub 3$ 218 neutron group master cross-section library from ENDF/B-IV data for the fuel, structural, and neutron- absorbing materials tabulated. The library is the data base for the generation of broad-group cross sections for shipping cask calculations and other criticality safety analyses using codes such as KENO and ANISN. Selection of the fine-group energy structure for the 3-eV to 20-MeV energy range included consideration of the resonance structure of prominent nuclei, the thresholds of important reactions, and the fission spectra. For 10$sup -5$ less than or equal to E/sub n/ less than 3 eV, 78 closely spaced thermal groups were chosen to examine the effects of low-energy resonances and thermal-neutron upscatter. Distribution of the 218 groups within the Hansen-Roach 16-group boundaries is shown. Adequacy of the group structure and validity of selected data sets from the library were tested by P$sub 3$S$sub 8$ XSDRNPM calculations of k-eff for two benchmark critical experiments; first, the 4.9 percent-enriched UO$sub 2$F$sub 2$- H$sub 2$O solution critical sphere experiment of Johnson and Cronin was analyzed, and, second, the 93.2 percent-enriched UO$sub 2$F$sub 2$-H$sub 2$O solution critical sphere experiment of Fox was analyzed. (auth)
Contributing Partner: UNT Libraries Government Documents Department
325-B FACILITY

325-B FACILITY

Date: February 1, 1971
Creator: unknown
Description: Due to the continuing high air sample results over the past six months, a thorough review of conditions and procedures was felt necessary for 325-B facility. A complete survey of the facility was made, looking for possible or definite problems. A discussion about procedures and conditions was held with all Radiation Monitoring personnel involved with the facility. The following items we felt needed attention to improve the working environment for the personnel in the facility. 1. Recommend glovebox be decontaminated and gloves changed to reduce dose rates. 2. Repair fume hood for proper airflow. 3. Move slurp jug inside fume hood and provide lead shielding. 4. Change storage of samples outside of cells to reduce dose rates. 5. Recommend contaminated waste from cells be bagged when removed through transfer tray. 6. Recommend fume hoods be installed at cell transfer trays. During a recent house cleaning, personnel in 325-B took action to correct items number 1 through 5, which leaves item number 6 to be considered. The need for fume hoods is based on high air sample results. These fume hoods would be very helpful in the unpackaging of contaminated samples. The removal of samples from the cell requires good air ...
Contributing Partner: UNT Libraries Government Documents Department
1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY CONCEPTUAL DESIGN REPORT. VOLUME I. SUMMARY.

1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY CONCEPTUAL DESIGN REPORT. VOLUME I. SUMMARY.

Date: October 31, 1970
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY. CONCEPTUAL SYSTEM DESIGN DESCRIPTIONS.

1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY. CONCEPTUAL SYSTEM DESIGN DESCRIPTIONS.

Date: October 31, 1970
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY. CONCEPTUAL SYSTEM DESIGN DESCRIPTIONS.

1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY. CONCEPTUAL SYSTEM DESIGN DESCRIPTIONS.

Date: October 31, 1970
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY. CONCEPTUAL SYSTEM DESIGN DESCRIPTIONS.

1000-Mwe LIQUID METAL FAST BREEDER REACTOR FOLLOW-ON STUDY. CONCEPTUAL SYSTEM DESIGN DESCRIPTIONS.

Date: October 31, 1970
Creator: unknown
Description: None
Contributing Partner: UNT Libraries Government Documents Department
1000-MWe LMFBR ACCIDENT ANALYSIS AND SAFETY SYSTEM DESIGN STUDY. ACCIDENT- INITIATING CONDITIONS. PART 1. FLOW ABNORMALITIES. Topical Report.

1000-MWe LMFBR ACCIDENT ANALYSIS AND SAFETY SYSTEM DESIGN STUDY. ACCIDENT- INITIATING CONDITIONS. PART 1. FLOW ABNORMALITIES. Topical Report.

Date: January 1, 1970
Creator: Scott, J.H. & Moore, R.W.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
1000-MWe LMFBR ACCIDENT ANALYSIS AND SAFETY SYSTEM DESIGN STUDY. ACCIDENT INITIATING CONDITIONS. PART 2. REACTIVITY INSERTIONS.

1000-MWe LMFBR ACCIDENT ANALYSIS AND SAFETY SYSTEM DESIGN STUDY. ACCIDENT INITIATING CONDITIONS. PART 2. REACTIVITY INSERTIONS.

Date: January 1, 1970
Creator: Scott, J.H.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
1000-MWe LMFBR ACCIDENT ANALYSIS AND SAFETY SYSTEM DESIGN STUDY. CANDIDATE EMERGENCY DECAY HEAT REMOVAL SYSTEMS. Topical Report.

1000-MWe LMFBR ACCIDENT ANALYSIS AND SAFETY SYSTEM DESIGN STUDY. CANDIDATE EMERGENCY DECAY HEAT REMOVAL SYSTEMS. Topical Report.

Date: January 1, 1970
Creator: Honig, A.L. & Mercado, A.L.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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