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Near-real-time actinide concentrations via energy dispersive XRFA for process control and material accountability

Description: A Co-57 based XRFA system has been installed on-line at ICPP to monitor uranium concentrations after first cycle decontamination. A small, medium, or large collimator is used to restrict fission product (fp) background count rates. Using two 50 mCi sources, 1 gU/1 can be measured to +-2% in 10 min with the medium collimator. A computer-based MCA runs the system automatically, controls an insertable U foil (allows calibration anytime) and an automatic W shutter (permits removal of fp background)… more
Date: November 18, 1983
Creator: Camp, D. C.; Ruhter, W. D.; Johnson, C. E. & Piper, T. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evolution of the mirror machine

Description: The history of the magnetic-mirror approach to a fusion reactor is primarily the history of our understanding and control of several crucial physics issues, coupled with progress in the technology of heating and confining a reacting plasma. The basic requirement of an MHD-stable plasma equilibrium was achieved following the early introduction of minimum-B multipolar magnetic fields. In refined form, the same magnetic-well principle carries over to our present experiments and to reactor designs.… more
Date: August 18, 1983
Creator: Damm, C. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Shock Hugoniot measurements on Ta to 0. 78 TPa

Description: Symmetric impact shock Hugoniot measurements have been made on Ta with an electrically exploded foil gun system. The results obtained to date for the Hugoniot of Ta cover the range 0.19 to 0.78 TPa (impact velocities from 4.0 to 9.7 km/s) and agree with data obtained by other researchers to within 2.7% rms. Recent improvements in the system include electromagnetic shielding of impactor and target, continuous measurement of impactor velocity with a Fabry-Perot interferometer and computer-aided a… more
Date: August 18, 1983
Creator: Froeschner, K. E.; Lee, R. S.; Chau, H. H. & Weingart, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Status report for data files and Monte Carlo transport codes maintained by the Physical Data Group of LLNL

Description: The Physical Data Group of the Theoretical Physics Division of LLNL has developed and maintains several basic data files, several Monte Carlo transport codes, and the requisite processing codes that convert the basic data to the form required by our own transport codes and by other laboratory transport and burn codes. The data files (libraries) that we maintain are listed together with a few comments about each.
Date: October 18, 1983
Creator: Howerton, Robert J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Yarbrough Supreme Court Justice Caught]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas, to accompany a news story about the arrest of former Texas Supreme Court Justice Don Yarbrough. This b-roll footage shows Yarbrough exiting a courtroom. The footage appears to be from 36 Eyewitness News KTVV in Austin, Texas.
Date: March 18, 1983
Duration: 42 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Tunnel nitrogen spill experiment

Description: The Energy Saver Safety Analysis Report (SAR) found the tunnel oxygen deficiency considerations emphasized helium spills. These reports concluded the helium quickly warms and because of its low denisty, rises to the apex of the tunnel. The oxygen content below the apex and in all but the immediate vicinity of the helium spill is essentially unchanged and guarantees an undisturbed source of oxygen especially important to fallen personnel. In contrast nitrogen spills warm slower than helium due t… more
Date: August 18, 1983
Creator: Ageyev, A. I.; Alferov, V. N. & Mulholland, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Possible error-prone repair of neoplastic transformation induced by fission-spectrum neutrons

Description: We have examined the effect of fission-spectrum neutrons from the JANUS reactor at Argonne National Laboratory, delivered either as acute or protracted irradiation, on the incidence of neoplastic transformation in the C3H 1OT1/2 mouse embryo cell line. Acute exposures were delivered at 10 to 38 rads/min, protracted exposures at 0.086 or 0.43 rad/min. The total doses for both ranged from 2.4 to 350 rads. In the low dose region (2.4 to 80 rads), there was a large enhancement in transformation fre… more
Date: July 18, 1983
Creator: Hill, C. K.; Han, A. & Elkind, M. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Fire code]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 18, 1983, 6:00 p.m.
Duration: 1 minute 56 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Regent fire]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 18, 1983, 5:00 p.m.
Duration: 1 minute 47 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Regent]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 18, 1983, 6:00 p.m.
Duration: 1 minute
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Nova laser assurance-management system

Description: In a well managed project, Quality Assurance is an integral part of the management activities performed on a daily basis. Management assures successful performance within budget and on schedule by using all the good business, scientific, engineering, quality assurance, and safety practices available. Quality assurance and safety practices employed on Nova are put in perspective by integrating them into the overall function of good project management. The Nova assurance management system was dev… more
Date: July 18, 1983
Creator: Levy, A.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effect of local soil conditions on site amplification

Description: The Seismic Safety Margins Research Program (SSMRP) is developing a complete fully coupled analysis procedure (including methods and computer codes) for estimating the risk of an earthquake-induced radioactive release from a commercial nuclear power plant. The analysis procedure is based upon a state-of-the-art evaluation of the current seismic analysis and design process and explicitly accounts for uncertainties inherent in such a process. In Phase I, the seismic input, the soil-structure inte… more
Date: February 18, 1983
Creator: Chen, J. C.; Bernreuter, D. L. & Johnson, J. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Inertial effects in laser-driven ablation

Description: The gasdynamic partial differential equations (PDE's) governing the motion of an ablatively accelerated target (rocket) contain an inertial force term that arises mathematically from acceleration of the reference frame in which the PDE's are written, and more physically from the requirement that part of the ablated mass (the deflagration wave zone) needs to be accelerated along with the unablated mass (payload). We give a simple, intuitive description of this effect, and estimate its … more
Date: August 18, 1983
Creator: Harrach, R. J.; Szoeke, A. & Howard, W. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Initial ICRF heating experiments in the TMX-U central cell

Description: An ion-cyclotron range of frequencies (ICRF) heating system has been installed in the Tandem Mirror Experiment-Upgrade (TMX-U) central cell. Our initial objective is to heat low density ions in the near field of the antenna. This heating reduces the collisionality of central cell ions, which decreases the filling rate of the thermal barrier by passing ions from the central cell. From power- and particle-balance calculations, we determined that 60 kW of absorbed power is sufficient to heat plasm… more
Date: February 18, 1983
Creator: Molvik, A.W.; Falabella, S. & Moore, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ICRF pumping in the TMX-U transition region

Description: These studies indicate that ICRF transition pumping is feasible in the TMX-U experiment using moderate frequencies and power levels. Some degree of latitude must be included in the final design to compensate the rough calculations. The possibility of coupling near 2 ..omega../sub ci/ is attractive but awaits a clearer exposition of the theory and an adequate computer code.
Date: February 18, 1983
Creator: Cummins, W. F. & Rensink, M. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Experiments on hot-electron ECRH in the Tandem Mirror Experiment-Upgrade

Description: Experiments have begun on the Tandem Mirror Experiment Upgrade (TMX-U) using electron-cyclotron resonant heating (ECRH) to generate the hot electron populations required for thermal barrier operation (Energy E/sub eh/ approx. 50 keV, density n/sub eh/ < 5 x 10/sup 12/, and hot-to-cold fraction n/sub eh/n approx. 0.9). For this operation, rf power produced by 28-GHz gyrotrons is injected with extraordinary mode polarization at both fundamental and second harmonic locations. Our initial experimen… more
Date: February 18, 1983
Creator: Stallard, B.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Switching transients in a superconducting coil

Description: A study is made of the transients caused by the fast dump of large superconducting coils. Theoretical analysis, computer simulation, and actual measurements are used. Theoretical analysis can only be applied to the simplest of models. In the computer simulations two models are used, one in which the coil is divided into ten segments and another in which a single coil is employed. The circuit breaker that interrupts the current to the power supply, causing a fast dump, is represented by a time a… more
Date: November 18, 1983
Creator: Owen, E. W. & Shimer, D. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: NAACP suit]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 18, 1983, 6:00 p.m.
Duration: 1 minute 06 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Starving for Help extra]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: April 18, 1983, 6:00 p.m.
Duration: 3 minutes 15 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Hepatitis]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 18, 1983, 10:00 p.m.
Duration: 1 minute 34 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Monorail]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 18, 1983, 6:00 p.m.
Duration: 1 minute 25 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Antiques]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 18, 1983
Duration: 1 minute 53 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Electric mail]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: February 18, 1983, 5:00 p.m.
Duration: 1 minute 43 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
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