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Test Results for a High Field (13T) Nb3Sn Dipole

Description: A Nb{sub 3}Sn dipole magnet (D20) has been designed, constructed, and tested at LBNL. Previously, they had reported test results from a hybrid design dipole which contained a similar inner Nb{sub 3}Sn and outer NbTi winding. This paper presents the final assembly characteristics and parameters which will be compared with those of the original magnet design. The actual winding size was determined and a secondary calibration of the assembly pre-load was done by pressure sensitive film. The actual… more
Date: December 1, 1996
Creator: McInturff, A.D.; Benjegerdes, R.; Bish, P.; Caspi, S.; Chow, K.; Ell'Orco, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of mercury and chloride monitors for coal gasifiers

Description: Ames Laboratory will develop an integrated sampling and analysis system suitable for on-line monitoring of mercury (Hg) and hydrogen chloride (HCl) in advanced coal-based gasifiers. The objectives of this project are to (1) summarize current technology for monitoring Hg and HCl in gaseous effluents; (2) identify analytical techniques for such determinations in high-temperature, high-pressure gases from coal-based systems for producing electrical power; (3) evaluate promising analytical approach… more
Date: December 31, 1996
Creator: Buttermore, W. H.; Norton, G. A.; Chriswell, C. D.; Eckels, D. E. & Peters, R. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurements of integrated water vapor and cloud liquid water from microwave radiometers at the DOE ARM Cloud and Radiation Testbed in the U.S. Southern Great Plains

Description: The operation and calibration of the ARM microwave radiometers is summarized. Measured radiometric brightness temperatures are compared with calculations based on the model using co-located radiosondes. Comparisons of perceptible water vapor retrieved from the radiometer with integrated soundings and co-located GPS retrievals are presented. The three water vapor sensing systems are shown to agree to within about 1 mm.
Date: June 1, 1996
Creator: Liljegren, J. C. & Lesht, B. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Calibration of a Solar Absolute Cavity Radiometer with Traceability to the World Radiometric Reference

Description: This report describes the present method of establishing traceability of absolute cavity radiometers to the World Radiometric Reference (WRR) through the process employed in the International Pyrheliometer Comparisons (IPC). This method derives the WRR reduction factor for each of the participating cavity radiometers. An alternative method is proposed, described, and evaluated as a way to reduce the uncertainty in the comparison process. The two methods are compared using a sample of data from … more
Date: January 1, 1996
Creator: Reda, I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The calibration and characterization of a research x-ray unit

Description: The proper characterization of an X-ray unit is necessary for the utilization of the source as a dosimetry calibration standard. Upon calibration, the X-ray unit can be used for X-ray calibrations of survey, diagnostic, and reference-class, instruments and for X-ray irradiations of personnel dosimeters. It was the goal of this research to provide the Radiation Calibration Laboratory at Oak Ridge National Laboratory with a characterized research X-ray unit that could be used in reference dosimet… more
Date: June 1, 1996
Creator: Johnson, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The CMS central hadron calorimeter

Description: The CMS central hadron calorimeter is a copper absorber/ scintillator sampling structure. We describe design choices that led us to this concept, details of the mechanical and optical structure, and test beam results. We discuss calibration techniques, and finally the anticipated construction schedule.
Date: December 31, 1996
Creator: Freeman, J. & Collaboration, E892
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Improving thermosyphon solar domestic hot water system model performance. Final report, March 1994--February 1995

Description: Data from an indoor solar simulator experimental performance test is used to develop a systematic calibration procedure for a computer model of a thermosyphoning, solar domestic hot water heating system with a tank-in-tank heat exchanger. Calibration is performed using an indoor test with a simulated solar collector to adjust heat transfer in the heat exchanger and heat transfer between adjacent layers of water in the storage tank. An outdoor test is used to calibrate the calculation of the fri… more
Date: September 1996
Creator: Swift, T.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Monochromators for small cross-section x-ray beams from high heat flux synchrotron sources

Description: For some x-ray experiments, only a fraction of the intense central cone of x-rays generated by high-power undulator sources can be used; the x-ray source emittance is larger than the useful emittance for the experiment. For example with microfocusing optics, or for coherence experiments, x-ray beams with cross sections less than 0.1 mm{sup 2} are desirable. With such small beams, the total thermal load is small even though the heat flux density is high. Analyses indicate that under these condit… more
Date: October 1996
Creator: Ice, G.; Riemer, B. & Khounsary, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Dose reconstruction for the Urals population: Joint Coordinating Committee on Radiation Effects Research Project 1.1. Final report

Description: Population exposure in the Urals occurred as a result of failures in the technological processes at the Mayak plutonium facility in the 1950s. Construction of the Mayak facility began in 1945 and was completed in 1948. Initially this complex consisted of three main parts: Reactor plant, radiochemical facility, and waste-management facilities. The major sources of radioactive contamination were the discharges of 2.7 x 10{sup 6}Ci of liquid wastes into the Techa River (1949-1956); an explosion in… more
Date: January 1, 1996
Creator: Degteva, M. O.; Drozhko, E.; Anspaugh, L. R.; Napier, B. A.; Bouville, A. C. & Miller, C. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fielding and calibration issues for diamond photoconducting detectors

Description: Diamond photoconducting detectors are routinely fielded as soft x-ray diagnostics on Sandia`s Saturn facility. We have developed an improved detector mount that provides a 200-ps time response, is easily cleanable, and is very rugged. In addition, we have developed a new, fast insertion unit to apply bias voltage to the detectors. Absolute calibration of the PCDs is carried out either at the Brookhaven National Synchrotron Light Source or on Sandia`s laser calibration facility. We are now field… more
Date: December 1, 1996
Creator: Spielman, R. B.; Ruggles, L. E.; Pepping, R. E.; Breeze, S. F.; McGurn, J. S. & Struve, K. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Shuffler measurements of previously unverified and unconfirmed inventory items

Description: The two new shufflers at Los Alamos National Laboratory (LANL) have been used on uranium inventory items that could not be previously verified or confirmed because of the lack of a suitable assay instrument. A third shufflers at the Westinghouse Savannah River Site (SRS) is currently measuring yet another inventory. One of the LANL inventories had items with only uranium while the second inventory had many mixtures of uranium and plutonium. The only calibration standards available were uniforml… more
Date: September 1996
Creator: Hurd, J. R.; Hsue, F. & Rinard, P. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Groundwater model calibration at Pantex using Data Fusion modeling

Description: The Pantex plant has operated as one of the Federal government`s key conventional and nuclear weapons facilities since the 1940`s. In recent years, the DOE has expended considerable effort to characterize the nature and extent of groundwater contamination associated with the site. That effort is still on-going with the ultimate aim of determining and implementing appropriate remedial measures. The goal of the study described in this report was to use Data Fusion modeling to calibrate a groundwa… more
Date: April 1, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using a coordinate measuring machine to calibrate step gages at world class levels of uncertainty

Description: The purpose of this paper is to relate some of the experiences of using a coordinate measuring machine (CMM) to calibrate long end standards and step gages at measurement uncertainties of less than 0. 5{mu}m. It is not the intent of this paper to suggest that everyone should return to his or her laboratory and change the way CMMs are operated nor to suggest that the methods discussed here are even the best methods. The intent is to provide some food for thought, based on real experiences, about… more
Date: August 1, 1996
Creator: Zurcher, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contribution of backscattering to radiation fields in the Source Projector Facility

Description: The Radiation Physics Source Projection Facility at Fermilab employs three collimated {sup 137}Cs sources for different calibration purposes. This facility is used to calibrate many of the instruments used at Fermilab to measure both prompt and residual radiation fields due to accelerator operations. A study was done using three air ion chambers (2.5 ml, 80 ml, and 1000 ml) to measure field uniformity within the radiation cone and separately the contribution of backscatter. The field uniformity… more
Date: October 1, 1996
Creator: Marshall, E.; Vaziri, K.; Krueger, F. & Cossairt, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The design and performance of the research reactor fuel counter

Description: This paper describes the design features, hardware specifications, and performance characteristics of the Research Reactor Fuel Counter (RRFC) System. The system is an active mode neutron coincidence counter intended to assay material test reactor fuel assemblies under water. The RRFC contains 12 {sup 3}He tubes, each with its own preamplifier, and a single ion chamber. The neutron counting electronics are based on the Los Alamos Portable Shift Register (PSR) and the gamma readout is a manual-r… more
Date: September 1, 1996
Creator: Abhold, M. E.; Hsue, S. T.; Menlove, H. O.; Walton, G. & Holt, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

In situ calibration of the CMS HCAL detector

Description: One serious challenge for hadron calorimeters is setting the absolute calibration. Electromagnetic calorimeters in a magnetic spectrometer have the momentum of electrons to calibrate against. In addition, at hadron colliders, Z supplies a narrow resonance to determine calibrations. No such well-measured processes have been available in the past for hadron calorimeters. In high energy collisions, high Pt hadrons are not normally isolated, rather appearing as part of jets. Contamination of the en… more
Date: December 20, 1996
Creator: Freeman, J. & Wu, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gas characterization system operation, maintenance, and calibration plan

Description: This document details the responsibilities and requirements for operation, maintenance, and calibration of the Gas Characterization Systems (GCS) analytical instrumentation. It further, defines the division of responsibility between the Characterization Monitoring Development organization and Tank Farms Operations.
Date: March 4, 1996
Creator: Tate, D.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Uncertainties in repository modeling

Description: The distant future is ver difficult to predict. Unfortunately, our regulators are being enchouraged to extend ther regulatory period form the standard 10,000 years to 1 million years. Such overconfidence is not justified due to uncertainties in dating, calibration, and modeling.
Date: December 31, 1996
Creator: Wilson, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Determination of the secondary electron equilibrium using an extrapolation chamber

Description: To ensure that the external personnel dosimetry program conducted by U. S. Department of Energy (DOE) contractors is of the highest quality, the DOE established the Department of Energy Laboratory Accreditation Program or DOELAP. The contractor`s dosimetry program is assessed against the criteria set forth for dosimeter performance and the associated quality assurance and calibration programs. Although personnel dosimeters are not processed or calibrated by Fermilab, a proactive quality assuran… more
Date: September 1, 1996
Creator: Marshall, E. T.; Vaziri, K.; Krueger, F. P. & Cossairt, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Partial least squares, conjugate gradient and the fisher discriminant

Description: The theory of multivariate regression has been extensively studied and is commonly used in many diverse scientific areas. A wide variety of techniques are currently available for solving the problem of multivariate calibration. The volume of literature on this subject is so extensive that understanding which technique to apply can often be very confusing. A common class of techniques for solving linear systems, and consequently applications of linear systems to multivariate analysis, are iterat… more
Date: December 1996
Creator: Faber, V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Results from the first Waste and Residue NDA Measurements School

Description: The first Waste and Residue Nondestructive Assay (NDA) Measurements School was given at Los Alamos on June 3--7, 1996. This school is a new part of the DOE Office of Safeguards and Security, Safeguards Training Program, with additional instructor support from the National Transuranic Waste Program, Idaho National Engineering Laboratory, Oak Ridge National Laboratory, Portsmouth Gaseous Diffusion Plant, Westinghouse savannah River Company, Pajarito Scientific Corporation, and Canberra Industries… more
Date: September 1, 1996
Creator: Ensslin, N.; Abhold, M.; Coop, K.; Prettyman, T.; Rinard, P.; Sheppard, G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Determination of reference concentrations for inorganic analytes in groundwater at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee

Description: Background (or reference) concentrations for inorganics in Y-12 Plant groundwater were determined using a combination of statistical cluster analysis and conventional cumulative probability graphing. Objective was to develop a methodology for setting groundwater reference concentrations that uses all site groundwater data instead of only results of sampling upgradient of groundwater contamination. Y-12 was selected as prototype because the groundwater data set is very large and the data have be… more
Date: March 1, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemometrics applied to vibrational spectroscopy: overview, challenges and pitfalls

Description: Chemometric multivariate calibration methods are rapidly impacting quantitative infrared spectroscopy in many positive ways. The combination of vibrational spectroscopy and chemometrics has been used by industry for quality control and process monitoring. The growth of these methods has been phenomenal in the past decade. Yet, as with any new technology, there are growing pains. The methods are so powerful at finding correlations in the data, that when used without great care they can readily y… more
Date: October 1, 1996
Creator: Haaland, D.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Simulation of x-ray fluorescence spectra

Description: A method for simulating x-ray fluorescence (XRF) spectra in hybrid densitometry is presented. This technique allows simulation of XRF spectra for solutions with arbitrary concentrations of special nuclear material and minor actinides excited by an x-ray generator. Spectra for mixed uranium and plutonium solutions with U/Pu ratios ranging from 100 to 1 have been generated. This range of ratios applies to most solutions found in plutonium reprocessing plants. XRF simulation can provide important … more
Date: September 1, 1996
Creator: Collins, M.L.; Hsue, S.T. & Gunnink, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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