| Development of Data-Assimilation-Quality MODIS and MISR Over Ocean Aerosol Products |
Aug-2009 |
74 pages |
| Authors:
Yingxi Shi; NORTH DAKOTA UNIV GRAND FORKS
|
 | Aerosol related researches have gained a significant amount of attention over the past decade, largely due to its importance in climate change studies. In addition, aerosols are also heavily studied for air quality and visibility forecasts, using Chemical Transport Models (CTM). Studies have shown that the CTM's aerosol forecasting capability can be significantly improved through the assimilation of satellite based aerosol measurements. However, large uncertainties and disagreements frequently exist in ... |
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| Dual Optical Ultra-Wide Band Laser Eyewear Transmission Field Evaluation Device Operation Manual |
May-2009 |
22 pages |
| Authors:
Tin M Aye; Jeffrey Wigle; PHYSICAL OPTICS CORP TORRANCE CA ELECTRO-OPTICS AND HOLOGRAPHY DIV
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| Dual Optical Ultrawide-Band Laser Eyewear Transmission (DOUBLET) Field Evaluation Device was developed by POC to meet the Air Force need for a simple device to measure the optical density (OD) of laser eye protection (LEP) spectacles, goggles, and visors with the OD 0 to 5, a precision of +/-0.1 OD at OD=1 and +/-0.5 at OD=5, across the VIS-NIR (400 nm to 1400 nm) spectral range. DOUBLET does not use ... |
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| The United Arab Emirates Nuclear Program and Proposed U.S. Nuclear Cooperation |
01-Apr-2009 |
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| Authors:
Christopher M Blanchard; Paul K Kerr; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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 | The United Arab Emirates (UAE) has embarked on a program to build civilian nuclear power plants and is seeking cooperation and technical assistance from the United States and others. During 2008 and early 2009, the Bush Administration and the UAE government negotiated and signed a memorandum of understanding and a proposed bilateral agreement on peaceful nuclear cooperation pursuant to Section 123 of the Atomic Energy Act (AEA) of 1954. Then-U.S. ... |
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| Upgrading of Existing X-Ray Photoelectron Spectrometer Capabilities for Development and Analysis of Novel Energetic NanoCluster Materials (DURIP) |
Mar-2009 |
7 pages |
| Authors:
David L Allara; PENNSYLVANIA STATE UNIV UNIVERSITY PARK
|
| This DURIP proposal was funded to upgrade an existing Kratos Ultra Axis X-ray Photoelectron Spectrometer (XPS) in the Penn State Materials Characterization Laboratory Facility as the primary objective along with an existing RHK, ultrahigh vacuum atomic force microscope (AFM) in the Allara lab as the secondary objective. These acquisitions allow new capabilities for performing experiments directed at synthesizing novel types of discrete heteroatom clusters by highly controlled vapor deposition and ... |
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| An Analysis of Clear Sky and Contextual Biases Using an Operational Over Ocean MODIS Aerosol Product |
Jan-2009 |
7 pages |
| Authors:
Jianglong Zhang; Jeffrey S Reid; NORTH DAKOTA UNIV GRAND FORKS
|
| Clear sky and other cloud-related contextual biases are critical yet unsolved mysteries for aerosol related climatological studies using satellite observations. For the first time, we simulated contextual biases over ocean using 2-years of Navy Aerosol Analysis and Prediction System (NAAPS) products that include the Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD) assimilation. We compared model-derived AOD in regions with and without observations, and found that sampling results in ... |
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| Compact Environmental Anomaly Sensor (CEASE): Geometric Factors |
04 Nov 2008 |
26 pages |
| Authors:
Donald Brautigam; AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE
|
| A previously published technical report [AFRL-VS-HA-TR-2006-1030] was the first in a series by AFRL to document the performance of the Compact Environmental Anomaly Sensor (CEASE). That report includes (1) a definition of the response function and its relation to the geometric factor; (2) a description of the Monte Carlo simulations that were performed to determine the proton and electron response functions for the telescope and dosimeters; and (3) the resulting ... |
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| The Global Nuclear Detection Architecture: Issues for Congress |
07-Jul-2008 |
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| Authors:
Dana A Shea; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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| In 2006, the Domestic Nuclear Detection Office (DNDO) was established within the Department of Homeland Security to centralize coordination of the federal response to an unconventional nuclear threat. The office was codified through the passage of the SAFE Port Act (P.L. 109-347) and given specific statutory responsibilities to protect the United States against radiological and nuclear attack, including the responsibility to develop a global nuclear detection architecture. Determining the range ... |
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| Development and Optimization of a Positron Annihilation Lifetime Spectrometer to Measure Nanoscale Defects in Solids and Borane Cage Molecules in Aqueous Nitrate Solutions |
01-Mar-2008 |
103 pages |
| Authors:
Matthew A Ross; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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| A Positron Annihilation Lifetime Spectroscopy (PALS) system was developed and tested. PALS has the capability to characterize negatively charged defects and voids in materials such as explosives. The timing resolution of the optimized system is 197 +or- 14 ps as measured with a known (60)Co source. A single-crystal tungsten sample was used to confirm the system calibration resulting in a lifetime of 101 +or- 2 ps (as compared to 105 ... |
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| Effect of Atmospheric Background Aerosols on Biological Agent Detectors |
01 JUN 2007 |
31 pages |
| Authors:
Jerry G. Jensen; SCIENCE APPLICATIONS INTERNATIONAL CORP (SAIC) ALEXANDRIA VA
|
| As part of the Kunsan Focused Effort (KFE), which was a project that sought to develop counter-biological warfare (C-BW) strategies and procedures designed to mitigate the impacts of BW attacks on Air Force operations, this technical report describes a project that examined both historic and contemporary studies related to background aerosol materials and biological weapon (BW) detection systems. The goal was to summarize how current BW detection systems are expected ... |
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| Correcting the Response of an Albedo Neutron Dosimeter for Energy |
JAN 2007 |
27 pages |
| Authors:
Gordon K. Riel; Patrick J. Winters; James R. Cassata; Ted St. John; Luis A. Benevides; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD
|
| The neutron response of an albedo neutron dosimeter varies greatly with energy. For example, the dosimeter, calibrated with moderated Californium fission neutrons, will read more than 30 times the dose from thermal neutrons and less than 3% of the dose from 14 MeV neutrons. To report a correct result, the measured dose equivalent is multiplied by a neutron energy correction factor (NECF). Two techniques for finding the NECF were developed ... |
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| Technical Basis Document for the GR-460, Contamination Monitoring System |
DEC 2006 |
25 pages |
| Authors:
Jerry R. Hensley; AIR FORCE INST FOR OPERATIONAL HEALTH BROOKS CITY-BASE TX SURVEILLANCE DIRECTORATE
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| The Air Force Institute for Operational Health is directed to support environmental remediation activities when radioactive materials are involved and has an emergency response element to respond to emergencies involving missing or dispersed radioactive materials. The Contamination Monitoring System (CMS) was designed to locate, identify, estimate activity, and reject natural background radiation with associated location (global positioning satellite system). The system collects the GPS coordinates via a Trimble GPS and ... |
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| Development of a Particle Counting Method for Assessing the Biological Protection Factor of Respirators |
NOV 2006 |
49 pages |
| Authors:
Paul D. Gardner; Karen M. Coyne; Jonathan P. Eshbaugh; Cindy R. Ching; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
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| This investigation developed and validated a highly sensitive method based on particle counting technology for assessing the protection afforded by chemical, biological, radiological, and nuclear respirators against biological threat agents. Inert monodisperse and polydisperse aerosols, representative in size to biological agents, were used to challenge a respirator fitted to a headform or worn by a human test participant. An aerosol spectrometer was used to measure aerosol penetration into the facepiece ... |
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| Satellite Remote Sensing of Atmospheric Meteoric Ions and Neutral Species |
30 SEP 2006 |
15 pages |
| Authors:
Arthur C. Aikin; CATHOLIC UNIV OF AMERICA WASHINGTON DC DEPT OF PHYSICS
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| Radiances measured with the GOME spectrometer on the ERS-2 satellite are used to derive the total content of the meteoric metal species Mg+, Mg, Fe+ and Fe. A retrieval algorithm has been developed and applied to determine the species content on a global scale for the year 1996. Results show total content for all the species has a maximum in late summer in both the northern and southern hemispheres. The ... |
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| Cylindrical Ion Trap Mass Spectrometer for Chemical Warfare Agent Detection and Identification |
01 OCT 2005 |
18 pages |
| Authors:
M. T. Griffin; Jr Fulton Jack E.; Robert F. McAtee; Norm Popkie; Michael A. Eagan; Mike Jahn; Rong Gao; Lefteri H. Tsoukalas; R. G. Cooks; NAVAL SURFACE WARFARE CENTER CRANE DIV IN
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| This briefing reports on the researchers progress in creating a miniature ion trap mass spectrometer that will permit selective rapid detection of airborne chemical warfare agents on the battlefield. |
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| Development of the AIRIS-WAD Multispectral Sensor for Airborne Standoff Chemical Agent and Toxic Industrial Chemical Detection |
FEB 2005 |
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| Authors:
William J. Marinelli; Christopher M. Gittins; Bogdan C. Cosofret; Teoman E. Ustun; James O. Jensen; PHYSICAL SCIENCES INC ANDOVER MA
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| The AIRIS Wide Area Detection System breadboard was employed in an airborne configuration to detect chemical agent simulant releases during the Technology Readiness Evaluations conducted at Dugway Proving Grounds in July 2002 (TRE-02) and at the Joint Urban 2003 tests at Oklahoma City, OK in July 2003. The observations were conducted from a gyro-stabilized pointing system mounted on a UH-1 helicopter and conducted at ranges up to ~7 km and ... |
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| AIRIS Wide Area Detector for Integrated Early Warning |
OCT 2004 |
9 pages |
| Authors:
William J. Marinelli; Michael L. Finson; John Hagge; Christopher M. Gittins; Teoman E. Ustun; Shing Chang; David C. Rossi; James O. Jensen; PHYSICAL SCIENCES INC ANDOVER MA
|
| We discuss the development of the AIRIS technology for the standoff detection, identification, and tracking of chemical warfare agents (CWA), toxic industrial chemicals (TIC), and biological warfare agent aerosols. This sensor is capable of detecting CWA vapors at levels required of the non-imaging JSLSCAD sensor, as well as many TICs, at their toxicity threshold. The development of this sensor will meet the need to detect smaller scale chemical releases at ... |
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| Tunable Snapshot Spectrometer Feasibility Study |
30 SEP 2004 |
139 pages |
| Authors:
Christopher P. Tebow; Eustace L. Dereniak; ARIZONA UNIV TUCSON
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| A tunable snapshot imaging spectrometer has been demonstrated. A liquid crystal spatial light modulator (LC SLM) has been integrated into a computed tomographic imaging spectrometer (CTIS) to achieve tunability. The LC SLM allows for rapid, programmable, and non-mechanical alteration of its phase profile by the application of appropriate voltages to its transparent electrodes. The goal of this dissertation is twofold: (1) to integrate a liquid crystal spatial light modulator into ... |
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| Nuclear Magnetic Resonance Spectrometer Console Upgrade for a Type II quantum Computer |
19 NOV 2003 |
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| Authors:
David G. Cory; MASSACHUSETTS INST OF TECH CAMBRIDGE
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| As proposed, we upgraded the system console on an existing Bruker Instruments, 14 T nuclear magnetic resonance (NMR) spectrometer to enable an improved implementation of type II quantum computers (TTQC). This upgrade is fully functional and has permitted our NMR studies to be moved to higher strength magnetic fields for better sensitivity and spectral dispersion. The TTQC experiments continue in collaboration with Dr. J. Yepez of the Air Force Research ... |
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| Film Implementation of a Neutron Detector (FIND): Proof of Concept Device |
01 OCT 2003 |
54 pages |
| Authors:
W. C. McGinnis; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
|
| The research described in this report addresses the problem of efficient and convenient inspection of buildings, vehicles, persons, and other places for concealed nuclear materials (such as uranium or plutonium) that are being used, or capable of being used, in nuclear weapons. One way to determine the presence of nuclear materials is to detect the neutrons that are emitted from the atomic nucleus of these materials in the radioactive decay ... |
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| High-Resolution Multibeam Deepwater Cable Route Survey in High-Relief Seafloor Area |
01-Sep-2003 |
10 pages |
| Authors:
Frederick Arnold; Mike Harrison; Roland Poeckert; Geoffrey Faneros; THALES GEOSOLUTIONS (PACIFIC) INC SAN DIEGO CA
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| In support of monitoring for nuclear tests, a Hydroacoustic Data Acquisition System (HDAS) monitoring system is to be installed at Ascension Island. The system consists of two hydrophone arrays linked by fibre optic cable to the island. A survey to select cable routes from PanAm Beach on Ascension Island to the proposed hydrophone sites was conducted in the summer of 2002. The survey utilised various acoustic sensors, single beam and ... |
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| Radiation Dose Analysis of NPS Flash X-Ray Facility Using Silicon Pin Diodes |
SEP 2003 |
59 pages |
| Authors:
Bernard L. Jones; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Naval Postgraduate School (NPS) Center for Radiation Hardened Electronics conducts research in the area of electronics for Department of Defense space and strategic systems. Installed in 1988, the Flash X-ray facility uses thermoluminescent dosimeters (TLDs) as the preferred method of radiation detection for experimentation dose levels. Semiconductor devices have been practically employed as radiation detectors since the early 1960s and technology in this field has vastly improved since then. ... |
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| Domestic Preparedness Program Evaluation of the IMS20000 (trademark) (Bruker Daltonics GmbH Ion Mobility Spectrometer 2000) Against Chemical Warfare Agents Summary Report |
JUL 2003 |
29 pages |
| Authors:
John M. Baranoski; Terri L. Longworth; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND TECHNOLOGY DIR
|
| This report characterizes the chemical warfare (CW) agent detection characteristics of the commercially available IMS2000TM. This instrument is an ion mobility spectrometer, designed for detection and monitoring of chemical warfare agents and industrial toxins. The instrument was tested against HD, GB, and GA vapor under various conditions. . This report provides the emergency responders concerned with CW agent detection and verification an overview of the capabilities of the IMS2000TM. |
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| Installation and Operation of Particle Transport Simulation Programs to Model the Detection and Measurement of Space Radiation by Space-Borne Sensors |
06 FEB 2003 |
59 pages |
| Authors:
Stanley Woolf; ARCON CORP WALTHAM MA
|
| This document is a report of the technical progress made during the period 01 Aug. 2001 - 31 July 2002 in the areas of: (1) research, evaluation and adaptation of particle transport simulation programs for modeling the detection and measurement of space radiation by space-borne sensors; (2) construction Of realistic flight sensor computer models; (3) performance of particle transport calculations; (4) space-borne dosimeter simulation studies; (5) studies of scattering of ... |
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| Comparison of Several Detector Technologies for Measurement of Special Nuclear Materials |
2003 |
9 pages |
| Authors:
A. E. Proctor; K. R. Pohl; CONSTELLATION TECHNOLOGY CORP LARGO FL
|
| Gamma spectral analysis of measurements made on Special Nuclear Materials (SNM) provides identification and sometimes quantification of the SNM present. Different radiation detection technologies have been used for measurement of SNM. Selection of one of these for a particular application depends on the information that can be obtained using that detector and on the support needed to use the detection technology, especially if it is to be applied at sites ... |
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| Passive Detection of Gases in the Atmosphere. Case Study: Remote Sensing of SO(2) in the UV Using LINUS |
DEC 2002 |
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| Authors:
Anastasios G. Halvatzis; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| An imaging UV spectrometer was used to study sulfuric plumes at Lassen Volcanic National Park, in an effort to identify and quantify SO presence. The NPS instrument, LINUS (Lineate Imaging Near -Ultraviolet Spectrometer), was taken to Lassen on September 13 and 14, 2002. Data taken there are compared to la laboratory measurements of SO(2) subsequently run at NPS. These data, along with additional measurements of platinum discharges for wavelength calibration, ... |
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| Design and First Operations of the Lineate Imaging Near-Ultraviolet Spectrometer (LINUS) |
DEC 2002 |
55 pages |
| Authors:
Jean M. Gray; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF PHYSICS
|
| Spectral imagery provides a new technology for target detection, defeat of camouflage, concealment and deception, and detection of chemical/ biological agents in the atmosphere. The Lineate Imaging Near Ultraviolet Spectrometer (LINUS) is designed to image a narrow passband in the UV portion of the Electromagnetic spectrum. The imaging spectrometer views a 0.5 degree vertical strip, while observing a 20-40 nm wide band currently centered at 300 nm. The 512 x ... |
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| A Study of NaBi(WO4)2 as a Cherenkov Radiator |
AUG 2002 |
66 pages |
| Authors:
David G. Williams; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF PHYSICS
|
| The purpose of this thesis is to examine the properties of NaBi(WO4)2 and determine its usefulness as a Cherenkov radiator. An implicit requirement in this process is to determine the best configuration of a counter using NaBi(WO4) 2 to detect the Cherenkov photons using a photomultiplier tube. |
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| Computer Aided Dosimetry and Verification of Exposure to Radiation |
JUN 2002 |
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| Authors:
Edward Waller; Robert Z. Stodilka; Karen E. Leach; Louise Lalonde; DEFENCE RESEARCH AND DEVELOPMENT CANADAOTTAWA (ONTARIO)
|
| In the timeframe following the September 11th attacks on the United States, increased emphasis has been placed on Chemical, Biological, Radiological and Nuclear (CBRN) preparedness. Of prime importance is rapid field assessment of potential radiation exposure to Canadian Forces field personnel. This work set up a framework for generating an "expert" computer system for aiding and assisting field personnel in determining the extent of radiation insult to military personnel. Data ... |
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| High-Pressure Helium-3 Scintillation Position-Sensitive Detector of Thermal Neutrons |
2002 |
13 pages |
| Authors:
A. Bolozdynya; A. Bolotnikov; J. Richards; CONSTELLATION TECHNOLOGY CORP LARGO FL
|
| The objective of this study is to demonstrate the feasibility of constructing a compact neutron detector that is sensitive to thermal and epithermal neutrons and has high rejection efficiency relative to gamma-ray background. A two-channel high-pressure 3He scintillation detector is considered for the detection of neutrons in coincidence mode. The detector consists of two large avalanche photodiodes viewing a gas volume filled with pressurized 3He. Experiments with the detector demonstrate ... |
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| Comparison of Spectral Analysis Software Programs (RobWin and RSEMCA) |
MAR 2001 |
132 pages |
| Authors:
Thomas E. Cartledge; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The Defense Threat Reduction Agency (DTRA) has purchased two spectral analysis programs, RobWin and RSEMCA, to support arms control efforts. This thesis explored which program performed better for nuclear weapon identification and verification. The initial hypothesis was that both programs would perform similarly with only small differences in visual displays and operating functions. The thesis investigated three areas in order to evaluate the software's capabilities. The first area studied the ... |
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| Industrial Stack Evaluation With Ground-Based Passive FT-IR Spectrometry |
JAN 2001 |
394 pages |
| Authors:
Roger J. Combs; Robert B. Knapp; Robert T. Kroutil; Mark J. Thomas; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| The methodology for producing absorbance and transmittance spectra with a passive Fourier transform infrared (FT-IR) spectrometer from an industrial stack and blackbody source is demonstrated. The knowledge of the stack temperature is shown to be key in generating the single-beam spectral ratio of differences for removal of instrumental effects from the absorbance and transmittance spectra. The difference removes self emission (i.e., offset) terms, and the ratio eliminates the responsivity (i.e., ... |
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| Limitations of the Hecht Equation Encountered in Measuring mu tau Products in Mercuric Iodide |
2001 |
7 pages |
| Authors:
Fred P. Vaccaro; Ken R. Pohl; Stan J. Smith; Lodewijk Van Den Berg; Ray P. DeVito; Craig R. Johnson; CONSTELLATION TECHNOLOGY CORP LARGO FL
|
| While attempting to measure (mu)t products in HgI2 using the pulse rise time method a method based on the Hecht equation fundamental limitations of the Hecht equation were revealed These limitations restrict the equations utility even for the case for which it was originally developed, i.e. when carrier trapping occurs without de-trapping. The Hecht equation purportedly analytically characterizes the charge collection process under uniform field and permanent charged carrier trapping ... |
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| Energy Transfer Processes in (Lu,Gd)AlO3:Ce |
2001 |
5 pages |
| Authors:
Andrzej J. Wojtowicz; Jiri A. Mares; NICHOLAS COPERNICUS UNIV OF TORUN (POLAND) INST OF PHYSICS
|
| In this paper we present initial results of studies on energy transfer processes in Ce-activated Lu, Y and Gd aluminum perovskite crystals that contribute to production of scintillation light in these new scintillator materials. In particular we report and analyze emission spectra, excitation spectra, and emission time profiles under pulsed synchrotron excitation in the wavelength range of 50-300 nm. The emission spectra of Lu(0.65)Gd(0.35)AlO3:Ce and Lu(0.2)Y(0.8)AlO3:Ce display a characteristic double ... |
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| Mapping Ground-Level Radiation Fields with DREO's Airborne Gamma-Ray Spectrometer |
DEC 2000 |
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| Authors:
D. S. Haslip; T. Cousins; T. A. Cousins; T. A. Jones; Ph. Bouteilloux; DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
|
| An algorithm is developed and tested that infers a ground contamination pattern from the dose rate patterns measured by DREO's Airborne Gamma-ray Spectrometer. This algorithm is based on a least-squares minimization, and uses Micro shield calculations of dose rates as a function of altitude over a patch of contaminated ground. The algorithm is successful in that it correctly identifies regions of high and low contamination, which would permit a commander ... |
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| Compton Scatter Imaging Instrument |
27 APR 2000 |
29 pages |
| Authors:
James D. Kurfess; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| A device for determining the photon energy E1 and direction cone angle of incident gamma ray includes a radiation detector for receiving an incident gamma ray having an unknown photon energy E1 and an unknown direction and for scattering the gamma ray with two Compton scattering interactions and a subsequent scattering or absorption interaction. The detector provides three outputs, each output corresponding to one of the Compton scattering and the ... |
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| Testing of the Siemens EPD MK2 Final Report of Tasking W28476KROOX (DSSPM) |
APR 2000 |
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| Authors:
Dean S. Haslip; Tom Cousins; Diego Estan; Jean- Roch Brisson; Bernbard E. Hoffarth; DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
|
| Defense Services Procurement Project 00002199 tasked DREO to test the new Siemens EPD Mk2 (an electronic personal dosimeter) at DREO's various irradiation facilities. The dependence of the response on dose rate, energy, and temperature were all studied. This dosimeter was found to be comparable to the DMC 2000S electronic dosimeter produced by Merlin-Guerin Products (MGP), although each has some particular advantages over the other. This dosimeter is ... |
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| Small On-Board Environmental Diagnostic Sensors Package (SOBEDS) |
07 MAR 2000 |
35 pages |
| Authors:
Robert Redus; Alan C. Huber; Phil G. D'Entremont; John O. McGarity; David J. Sperry; AMPTEK INC BEDFORD MA
|
| This report contains the summary of the scientific and engineering work performed as part of the development of the High Energy Proton instrument (HEP) and of the Low Energy Particle and Dosimetry instrument (LEPDOS). These instruments are part of the SOBEDS suite of instruments being developed by Amptek, Inc. The purpose of the HEP instrument is to measure the energy spectrum of energetic protons, specifically to obtain a differential spectrum ... |
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| Small On-Board Environmental Diagnostic Sensors Package (SOBEDS) |
14 FEB 2000 |
26 pages |
| Authors:
Robert H. Redus; Alan C. Huber; Phil D'Entremont; John O. McGarity; David J. Sperry; AMPTEK INC BEDFORD MA
|
| The Small On-Board Environmental Sensors Package (SOBEDS) is a suite of spacecraft instruments designed to measure ionizing radiation in the near- Earth space environment. The purpose of data gathered by the SOBEDS instrument is to improve the understanding of the Earth's radiation belts and the effect of ionizing radiation on Air Force space systems. This report is concerned with the experimental and computational effort in the design ... |
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| Buy & Try Testing of MGP DMC 2000S and NRC UDR-13A Dosimeters |
NOV 1999 |
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| Authors:
Dean S. Haslip; Tom Cousins; Diego Estan; Trevor A. Jones; Bernie E. Hoffarth; DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
|
| The MGP DMC 20008 and the NRC UDR-13A electronic dosimeters have been tested by DREO for acquisition project G2199 "Nuclear Detection, Identification and Dosimetry". These tests were carried out with the wide array of radioactive sources available at DREO, with the X-ray facility available at the National Research Council, and with one of the environmental chambers available at the Quality Engineering Test Establishment (QETE). Both meters ... |
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| Prediction of Radiological Hazard Areas with HPAC |
OCT 1999 |
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| Authors:
D. S. Haslip; DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
|
| The dispersal of radioactive materials in a number of military scenarios has been modelled computationally. This work is part of an international intercomparison of computational capabilities under the auspices of Action Group 44 of The Technical Co-operation Program. The results presented herein were obtained with the Hazard Prediction and Assessment Capability (HPAC) , designed by the U.S. Defense Threat Reduction Agency (DTRA). This sophisticated ... |
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| NOPP Aerosol Process Experiments: Phase 2 Data Report |
23 SEP 1999 |
77 pages |
| Authors:
William F. Sullivan; Thomas M. Albrechcinski; Robert R. Ambrusko; CALSPAN UB RESEARCH CENTER BUFFALO NY
|
| Data obtained by the Calspan-UB Research Center (CUBRC) during the National Oceanographic Participative Program (NOPP) Phase II Aerosol Process Experiments is presented. These experiments were performed in Calspan's 600M3 Atmospheric Research Chamber. CUBRC was responsible for Chamber operations and performance, collaborated with the principal investigators from the Naval Research Laboratory and University of Washington, and with the participating scientists from the National Center for Atmospheric Research, Aerodyne, Environment Canada and ... |
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| Defect Characterisation of Ultra-Small Devices |
20 SEP 1999 |
43 pages |
| Authors:
David J. Keeble; DUNDEE UNIV (UNITED KINGDOM) DEPT OF APPLIED PHYSICS AND ELECTRONIC AND MECHANICAL ENGINEERING
|
| The work described here details the development of electron magnetic resonance facilities and measurements for use on US Army projects for the characterisation of electronic devices. An operational electrically-detected magnetic resonance (EDMR) spectrometer constructed has been installed based on a Bruker (Bmax = 2.1 T) electromagnet. The first spectra from device structures have been successfully recorded. A flexible modular spectrometer system has resulted and has ... |
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| Chemiluminescence and the Nomadics Spectrometer Card |
JUN 1999 |
17 pages |
| Authors:
Anthony DeGregoria; AIR FORCE RESEARCH LAB TYNDALL AFB FL MATERIALS AND MANUFACTURING DIRECTORATE
|
| This report presents an experimental study on the potential of employing the Nomadics Spectrometer Card as an analyst of the visible light produced by certain chemical reactions. Following an outline of the experimental procedures, a discussion and analysis section interprets the resulting data and illustrates the value of the Spectrometer Card to chemiluminescent analysis. The final sections summarize the study's findings, describe sources of error, and make recommendations for future ... |
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| Report on the Characterization of Calspan's 600 m3 Chamber in Preparation for the NOPP Aerosol Processes Experiments |
22 APR 1999 |
65 pages |
| Authors:
William Hoppel; Glendon Frick; Peter Caffrey; Louis Pasternack; Thomas Albrechcinski; NAVAL RESEARCH LAB WASHINGTON DC CHEMICAL DYNAMICS AND DIAGNOSTICS BRANCH
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| Calspan's 600 m3 chamber was characterized in preparation for the National Oceanographic Participation Program (NOPP) Aerosol Processes Experiments. Both physical and chemical measurements were made to test the functioning of the chamber for nucleation and cloud processing experiments. |
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| Fan-Beam Multiplexed Compton Scatter Tomography for Single-Sided Noninvasive Inspection |
APR 1999 |
170 pages |
| Authors:
Brian L. Evans; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF ENGINEERING
|
| Multiplexed Compton Scatter Tomography (MCST) is explored as a method of nondestructively generating cross-sectional images of a sample's electron density. MCST is viable when access is available to only one side of the sample because it registers scattered gamma radiation. Multiplexing in scattered photon energy and in detector position allows simultaneous interrogation of many voxels with comparatively wide collimation. Primary components include a radioisotope source, fan beam collimators, and energy-discriminating ... |
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| Requirements of Radiation Detection, Identification, and Dosimetry Equipment for the Canadian Forces |
APR 1999 |
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| Authors:
D. S. Haslip; T. Cousins; DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
|
| Technical Descriptions have been developed for equipment to be procured under Defense Services Procurement Project G2199 Nuclear Detection, Identification and Dosimetry. These descriptions have been developed from NATO requirements, industry research, analysis of previous DREO tests, and extensive consultations with the project's operational sponsor in the Directorate of Nuclear, Biological, and Chemical Defense (DNBCD). |
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| EPR Spectrometer for Probing Biomimetic Metal Sites |
02 FEB 1999 |
3 pages |
| Authors:
KANSAS UNIV LAWRENCE DEPT OF CHEMISTRY
|
| An EPR spectrometer was purchase with funds obtained with DURIP grant N00014-998-0448. This instrument, which has been operational since November 1998, has been used to characterized structure/functional properties of new materials. These materials are used for gas storage/release and transport, sensors and catalysis. Materials that rapidly and reversibly bind O2 and NO have been fabricated. Biomedical applications include artery (smooth muscle) relaxation under biologically relevant conditions which is induced by ... |
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| Gamma Ray Imaging Prototype Vehicle and Cargo Inspection System (VACIS II) |
20 JAN 1999 |
67 pages |
| Authors:
Jay Payne; Vic Verbinski; SCIENCE APPLICATIONS INTERNATIONAL CORPSAN DIEGO CA
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| This report summarizes the development and production of the VACIS II Gamma-ray Imaging System. It includes system specifications, a trade study, and hazard analysis. |
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| Monitoring and Investigation of Ground Level Solar Cosmic Ray Enhancements by Means of High Altitude Neutron Monitor |
1999 |
17 pages |
| Authors:
Anatoly V. Belov; RUSSIAN ACADEMY OF SCIENCES TROITSK INST OF TERRESTRIAL MAGNETISM IONOSPHEREAND RADIO WAVE PROPAGATION
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| This report results from a contract tasking IZMIRAN as follows: The contractor will investigate high-energy solar neutrons which are produced at solar flare sites. He will improve the registration system of the Alma-Ata neutron monitor and develop methods of reliable selection of the solar neutron events, as well as methods to study high energy solar proton events and calculate their spectra. He will supplement the GLE database existing at the ... |
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| Apparatus and Method for Generating Short Pulses for NMR and NQR Processing |
08 SEP 1998 |
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| Authors:
Joel B. Miller; Allen N. Garroway; DEPARTMENT OF THE NAVY WASHINGTON DC
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| An apparatus using nuclear magnetic or quadrupole resonance to detect selected nuclei in a specimen (e.g., specimens containing a class of explosives or narcotics). The apparatus includes a pulsing unit to generate an RF pulse or a train of pseudo-random RF pulses used in stochastic NQR. Each of the pulses has an RF signal reaching a full amplitude within a quarter-cycle (substantially no pulse rise delay) and having_ a recovery ... |
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Nuclear Instrumentation
