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in creator/contributor: "Bowman, D."

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Research, development, and demonstration of lead-acid batteries for electric-vehicle propulsion. Annual report for 1982

Research programs on lead-acid batteries are reported that cover active materials utilization, active material integrity, and some technical support projects. Processing problems were encountered and corrected. Components and materials, a lead-plastic composite grid, cell designs, and deliverables are described. Cell testing is discussed, as well as battery subsystems, including fuel gage, thermal management, and electrolyte circulation. (LEW)

Date: August 1, 1983

Creator: Bowman, D.E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Particle evaporation spectra with inclusion of thermal shape fluctuations

The origin of the substantial sub-Coulomb component observed in proton and /sup 4/He evaporation spectra at high excitation energy is attributed to the thermal excitation of shape degrees of freedom. A critique of the Hauser-Feshbach theory as used in evaporation codes is presented. A new formalism including the thermal excitation of collective modes as well as quantal penetration in the framework of a transition state approach is derived. 5 figs.

Date: April 1, 1987

Creator: Moretto, L. G. & Bowman, D. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

NNSA/NV Consequence Management Capabilities for Radiological Emergency Response

The U.S. Department of Energy's National Nuclear Security Administration Nevada Operations Office (NNSA/NV) provides an integrated Consequence Management (CM) response capability for the (NNSA) in the event of a radiological emergency. This encompasses planning, technical operations, and home team support. As the lead organization for CM planning and operations, NNSA/NV coordinates the response of the following assets during the planning and operational phases of a radiological accident or inci… more

Date: October 1, 2002

Creator: Bowman, D. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Radiological Emergency Response Health and Safety Manual

This manual was created to provide health and safety (H&S) guidance for emergency response operations. The manual is organized in sections that define each aspect of H and S Management for emergency responses. The sections are as follows: Responsibilities; Health Physics; Industrial Hygiene; Safety; Environmental Compliance; Medical; and Record Maintenance. Each section gives guidance on the types of training expected for managers and responders, safety processes and procedures to be followed w… more

Date: May 2001

Creator: Bowman, D. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Likelihood analysis of parity violation in the compound nucleus

We discuss the determination of the root mean-squared matrix element of the parity-violating interaction between compound-nuclear states using likelihood analysis. We briefly review the relevant features of the statistical model of the compound nucleus and the formalism of likelihood analysis. We then discuss the application of likelihood analysis to data on panty-violating longitudinal asymmetries. The reliability of the extracted value of the matrix element and errors assigned to the matrix e… more

Date: October 1, 1993

Creator: Bowman, D. & Sharapov, E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

New integrated polysilicon photoconductors for ultrafast measurements on silicon

A fully-integrated silicon-optical-switch technology is reported that demonstrates one picosecond sampling aperture when excited by a femtosecond laser. Fabrication of the polycrystalline-silicon-switch structure is accomplished with standard-integrated-circuit processing techniques to insure full compatibility with standard-VLSI processes. Photoresist-masked ion-beam irradiation is used to generate trapping sites in the photoconductive layer and tailor the switch on-time. Limited optimization … more

Date: January 1, 1985

Creator: Bowman, D. R.; Hammond, R. B. & Dutton, R. W.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Characterization of on-chip polycrystalline silicon photoconductors

We report experimental and modeling studies of on-ship photoconductor pulse generation and sampling. Specifically, we discuss (a) the effect of ion-beam damage on carrier lifetime and sampling-aperture time, (b) the circuit limits to pulse risetime, and (c) the room-temperature stability of ion-beam-damaged sampling gates.

Date: January 1, 1986

Creator: Fitzpatrick, D. K.; Bowman, D. R. & Hammond, R. B.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Pollution prevention opportunity assessment United States Naval Base Norfolk Naval Air Station. Project summary

The purposes of the WREAFS Program are to identify new technologies and techniques for reducing wastes from process operations and other activities at Federal sites, and to enhance the implementation of pollution prevention/waste minimization through technology transfer. New techniques and technologies for reducing waste generation are identified through waste minimization opportunity assessments and may be further evaluated through joint research, development, and demonstration projects. A coo… more

Date: September 1, 1995

Creator: Bowman, D. & DeWaters, J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Equilibrium and non-equilibrium emission of complex fragments

Complex fragment emission (Z{gt}2) has been studied in the reactions of 50, 80, and 100 MeV/u {sup 139}La + {sup 12}C, and 80 MeV/u {sup 139}La + {sup 27}Al, {sup nat}Cu, and {sup 197}Au. Charge, angle, and energy distributions were measured inclusively and in coincidence with other complex fragments, and were used to extract the source rapidities, velocity distributions, and cross sections. The experimental emission velocity distributions, charge loss distributions, and cross sections have bee… more

Date: August 1, 1989

Creator: Bowman, D. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Federal Radiological Monitoring and Assessment Center Phased Response Operations

A Federal Radiological Monitoring and Assessment Center (FRMAC) is established in response to the Lead Federal Agency (LFA) or state request when a major radiological emergency is anticipated of has occurred. The FRMAC becomes a coalition of federal off-site monitoring and assessment activities to assist the LFA, state(s), local, and tribal authorities. State, local, and tribal authorities are invited to co-locate and prioritize monitoring and assessment efforts in the FRMAC. The Department of … more

Date: June 30, 1999

Creator: Riland, C. A. & Bowman, D. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The end of incomplete fusion and the decoupling of the fireball as seen from complex fragment emission

The incomplete fusion process is affected by the entrance channel asymmetry as well as by the bombarding energy. In the first part of the paper, the role of entrance channel mass asymmetry is explored by characterizing the resulting complex fragment sources in terms of their velocity, charge and excitation energy. In the second part evidence is given about the possible demise of incomplete fusion and the onset of the fireball regime from the anomalous charge and angular distributions of the emi… more

Date: April 1, 1989

Creator: Moretto, L. B.; Bowman, D. R.; Colonna, N. & Wozniak, G. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design of the Atlas 240 kV Marx modules

A prototype 240 kV, oil-insulated Marx module has been designed and constructed at the Los Alamos National Laboratory (LANL). The prototype will be used for testing and certifying the design of the Marx module and certain components, including the closing switches, series resistor, and the capacitors themselves. The prototype will also be used to evaluate proposed mechanical systems designs. Information gained from the construction and testing of the 4-capacitor prototype will be folded into th… more

Date: June 1, 1997

Creator: Bowman, D.W.; Bennett, G. & Biehl, F.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

AN OVERVIEW OF THE MECHANICAL DESIGN OF THE ATLAS PULSED POWER MACHINE

No Description Available.

Date: July 1, 1999

Creator: BOWMAN, D. W.; BALLARD, E. O. & AL, ET

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Readiness Issues for Emergency Response Instrumentation

Issues in maintaining readiness of instruments for deployment and use in emergency response situations often differ from those in maintaining instruments for normal operations. Confunding circumstances include use or non-availability of check sources, ensuring instruments are always in calibration and operable, possible use of instruments in different climates, packaging of instrumentation for deployment, transport of instrumentation and check sources, and ensuring users are familiar with the i… more

Date: September 30, 1999

Creator: Riland, C. A.; Bowman, D. R. & Tighe, R. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Readiness Issues for Emergency Response Instrumentation

Issues in maintaining readiness of instruments for deployment and use in emergency response situation often differ from those in maintaining instruments for normal operations. Confunding circumstances include use of non-availability of check sources, ensuring instruments are always in calibration and operable, possible use of instruments in different climates, packaging of instrumentation for deployment, transport of instrumentation and check sources, and ensuring users are familiar with instru… more

Date: March 1, 1999

Creator: Riland, C. A.; Bowman, D. R. & Tighe, R. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Results of the remote sensing feasibility study for the uranium hexafluoride storage cylinder yard program

The US DOE manages the safe storage of approximately 650,000 tons of depleted uranium hexafluoride remaining from the Cold War. This slightly radioactive, but chemically active, material is contained in more than 46,000 steel storage cylinders that are located at Oak Ridge, Tennessee; Paducah, Kentucky; and Portsmouth, Ohio. Some of the cylinders are more than 40 years old, and approximately 17,500 are considered problem cylinders because their physical integrity is questionable. These cylinder… more

Date: February 1, 1997

Creator: Balick, L. K.; Bowman, D. R. & Bounds, J. H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Federal Radiological Monitoring and Assessment Center: Phase I Response

A Federal Radiological Monitoring and Assessment Center (FRMAC) is established in response to a Lead Federal Agency (LFA) or State request when a radiological emergency is anticipated or has occurred. The FRMAC coordinates the off-site monitoring, assessment, and analysis activities during such an emergency. The FRMAC response is divided into three phases. FRMAC Phase 1 is a rapid, initial-response capability that can interface with Federal or State officials and is designed for a quick respons… more

Date: September 30, 1999

Creator: Riland, C.; Bowman, D. R.; Lambert, R. & Tighe, R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Performance characteristics of the Atlas 60 kV, 60 kJ plastic capacitors

This paper provides the performance data of Atlas plastic capacitors as supplied by Maxwell Technologies and Aerovox Corporation. The fiberglass cases at 13 inches high by 29 inches wide and 28 inches in depth with a 2 inch by 18 inch bushing on each end. Two styles of the 33.5uF capacitors have been evaluated for Atlas use, a conventional paper-foil and a self-healing metalized-paper and plastic dielectric design. A test program to capacitor failure, is being used to evaluate capacitor lifetim… more

Date: December 1, 1997

Creator: Reass, W.; Bennet, G.; Bowman, D.; Lopez, E.; Monroe, M. & Parsons, W.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A Unitifed Computational Approach to Oxide Aging Processes

In this paper we describe a unified, hierarchical computational approach to aging and reliability problems caused by materials changes in the oxide layers of Si-based microelectronic devices. We apply this method to a particular low-dose-rate radiation effects problem

Date: January 27, 1999

Creator: Bowman, D. J.; Fleetwood, D. M.; Hjalmarson, H. P. & Schultz, P. A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

First reliability test of a surface micromachined microengine using SHiMMeR

The first-ever reliability stress test on surface micromachined microengines developed at Sandia National Laboratories (SNL) has been completed. We stressed 41 microengines at 36,000 RPM and inspected the functionality at 60 RPM. We have observed an infant mortality region, a region of low failure rate (useful life), and no signs of wearout in the data. The reliability data are presented and interpreted using standard reliability methods. Failure analysis results on the stressed microengines ar… more

Date: August 1, 1997

Creator: Tanner, D. M.; Smith, N. F. & Bowman, D. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design and characterization of microscale heater structures for test die and sensor applications

The authors describe a class of microscale heaters fabricated with CMOS processes on silicon wafers. These heaters were designed to produce localized high temperatures above 400 C for test and sensor applications. The temperature levels produced for various input powers and the thermal profiles surrounding the heater for packaged and wafer-level heater structures were studied to guide the placement of microelectronics integrated with the heater structures on the same die. To show the performanc… more

Date: May 1, 1998

Creator: Benson, D. A.; Bowman, D.; Filter, W.; Mitchell, R. & Perry, J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Design of the individual Marx modules for the Atlas machine 36 megajoule, 25 megampere capacitor bank

This paper presents the preliminary electrical and mechanical design of the Atlas machine`s 1.8 megajoule, 600 kV Marx modules. The modules are implemented with plastic cased capacitors similar to those developed for the Defense Nuclear Agency (DNA) ACE II and ACE IV machines. The double ended electrode capacitor style has been dubbed ``FASTCAP.`` Electrodes are provided for mounting rail-gaps on one side and flat plate transmission line damping resistors on the other. This provides for an extr… more

Date: September 1, 1995

Creator: Reass, W. A.; Bowman, D. W.; Gribble, R. F.; Griego, J. R.; Thompson, C. & Parsons, W. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Atlas chamber, power flow channel, and diagnostic interface design

The Atlas pulsed-power machine, presently being designed at Los Alamos, will deliver a pulse of {approximately} 45 MA, in 4--5 {micro}sec, with energies of up to 6 MJ (from a bank of 36 MJ maximum) to a load assembly, located in vacuum. Design considerations for the vacuum vessel, power flow channel from the vessel inward, are presented. In contrast to Sandia`s PBFA II-Z, where 20 MA currents and 2--2.5 MJ of energy are delivered to ({approximately} 15 mg) loads in {approximately} 100 nsec, the… more

Date: September 1, 1997

Creator: Wurden, G. A.; Davis, H. A.; Taylor, A.; Bowman, D.; Ballard, E.; Ney, S. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

SPECTROGRAPHIC ANALYSIS OF TISSUES FOR TRACE ELEMENTS. Progress Report for July 1, 1955 through December 31, 1955

No Description Available.

Date: March 12, 1956

Creator: Tipton, I H; Cook, M J; Steiner, R S; Foland, W D; Bowman, D K & McDaniel, K K

Item Type: Report

Partner: UNT Libraries Government Documents Department