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Technetium Behavior and Recovery in Soil

Description: Technetium-99 in soils is of great concern because of its long half-life and because it can not be detected readily. This work reviews the behavior of technetium in various types of soils. A method for extracting technetium from soil was developed with the use of technetium-95m and 99m to determine recoveries at each step. Technetium chemistry is very complicated and problem areas in the behavior and recovery have been highlighted. Technetium is widely used in nuclear medicine and a review of i… more
Date: December 1, 1995
Creator: Meinken, G. E.
Item Type: Refine your search to only Report
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Transverse Resistive Wall Instability in the Two-Beam Accelerator

Description: The transverse resistive wall instability in the Two-Beam Accelerator (TBA) is investigated analytically and numerically. Without any damping mechanism, we find one to four e-folds in 100 m, depending on the design. It is found that Landau damping, due to energy spread within a beam slice, is not effective, due to rapid synchrotron oscillations in the FEL ponderomotive well. Damping due to an energy sweep along the beam is also considered and it is found that a small variation in energy along t… more
Date: June 1, 1990
Creator: Whittum, D.H.; Sessler, Andrew M. & Neil, V.K.
Item Type: Refine your search to only Article
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Development and Testing of Industrial Scale Coal Fired Combustion System, Phase 3

Description: Coal Tech Corp's mission is to develop, license & sell innovative, lowest cost, solid fuel fired power systems & total emission control processes using proprietary and patented technology for domestic and international markets. The present project 'DEVELOPMENT & TESTING OF INDUSTRIAL SCALE, COAL FIRED COMBUSTION SYSTEM, PHASE 3' on DOE Contract DE-AC22-91PC91162 was a key element in achieving this objective. The project consisted of five tasks that were divided into three phases. The first phas… more
Date: September 30, 1998
Creator: Zauderer, Bert
Item Type: Refine your search to only Report
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Umatilla River Basin Anadromous Fish Habitat Enhancement Project : 1993 Annual Report.

Description: The Umatilla Basin Anadromous Fish Habitat Enhancement Project is funded under the Northwest Power Planning Council's Columbia River Basin Fish and Wildlife Program Measure 704 (d) (1) 34.02 and targets the improvement of water quality and restoration of riparian areas, holding, spawning and rearing habitats of steelhead, spring and fall chinook and coho salmon. The project focused on implementing instream and riparian habitat improvements on private lands on the Umatilla Indian Reservation (he… more
Date: April 1, 1993
Creator: Shaw, R. Todd
Item Type: Refine your search to only Report
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Influence of Subslab Aggregate Permeability of SSV Performance

Description: The effectiveness of the technique of subslab ventilation (SSV) for limiting radon entry into basements was investigated through complementary experimentation and numerical modeling. Determination of the impact of subslab aggregate permeability on SSV performance was a primary objective. Subslab pressure fields resulting from SSV were measured in six well-characterized basements, each with a different combination of soil and aggregate permeability. The relationship between air velocity and pres… more
Date: September 1, 1991
Creator: Gadgil, A. J.; Bonnefous, Y. C.; Fisk, W. J.; Prill, R. J. & Nematollahi, A.
Item Type: Refine your search to only Article
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Characteristics of a High Energy {mu sup +}{mu sup -} Collider Based on Electro-Production of Muons

Description: We analyze the design of an high energy {mu}{sup +}{mu}{sup -} collider based on electro-production of muons. We derive an expression for the luminosity in terms of analytic formulae for the electron-to-muon conversion efficiency and the electron beam power on the production target On the basis of studies of self-consistent sets of collider parameters under 'realistic' ('optimistic') assumptions about available technology with beam cooling, we find the luminosity limited to 10{sup 27} m{sup -2}… more
Date: January 9, 1993
Creator: Barletta, W. A. & Sessler, Andrew M.
Item Type: Refine your search to only Article
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Final predictions of ambient conditions along the east-west crossdrift using the 3-D UZ site-scale model. Level 4 milestoneSP33ABM4.

Description: In 1998, the Yucca Mountain Site Characterization Project (YMP) is expected to continue construction of an East-West Cross Drift. The 5-meter diameter drift will extend from the North Ramp of the Exploratory Studies Facility (ESF), near Station 19+92, southwest through the repository block, and over to and through the Solitario Canyon Fault. This drift is part of a program designed to enhance characterization of Yucca Mountain and to complement existing surface-based and ESF testing studies. Th… more
Date: March 1, 1998
Creator: Ritcey, A. C.; Sonnenthal, E. L.; Wu, Y. S.; Haukwa, C. & Bodvarsson, G. S.
Item Type: Refine your search to only Report
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Design Considerations for Simultaneous FEL and Nuclear Physics Operation at CEBAF

Description: As conceived in a recent design study, electron beams of quite distinct character would be provided for nuclear physics experiments and FEL wigglers at CEBAF. When full nuclear physics operation begins, coordination between these two programs becomes critical. FEL operation requires electron bunches carrying charge of 120 pC at repetition rates of 2.5 and 7.5 MHz, whereas the nuclear physics users need a relatively small charge per bunch, ~ 0.13 pC, but at a repetition rate of 1.5 GHz. To allow… more
Date: August 1, 1991
Creator: Yunn, Byung; Douglas, David; Neuffer, David; Krafft, Geoffrey; Bisognano, Joseph & Simrock, Stefan
Item Type: Refine your search to only Article
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Lattice calculation of I=2 pion scattering length

Description: We present results for the I=2 pion scattering length calculated using staggered fermions in the quenched approximation. The calculation uses the finite volume dependence of the energy of a two pion state. We find good agreement with current algebra predictions for scattering of Goldstone pions, and reasonable agreement for the non-Goldstine pions.
Date: January 1, 1992
Creator: Kilcup, Gregory; Gupta, Rajan & Sharpe, Stephen
Item Type: Refine your search to only Article
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Confining Potential in Momentum Space

Description: A method is presented for solution in momentum space of the bound state problem with linear potential in r-space. The potential is unbounded at large r leading to a singularity at small q. The singularity is integrable, when regulated by exponentially screening the r-space potential, and is removed by a subtraction technique. The limit of zero screening is taken analytically, and numerical solution of the subtracted integral equation gives eigenvalues and wavefunctions in good agreement with po… more
Date: June 1, 1992
Creator: Kahana, David; Norbury, John & Maung-Maung, Khin
Item Type: Refine your search to only Article
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Nuclear vs. Nucleon Structure Effects on Nuclear Transparency

Description: Nuclear structure effects account for the observed enhancement of the nuclear transparency to moderate energy protons, with respect to the predictions of Glauber theory. This enhancement appears to be comparable to the one associated with the onset of color transparency in the Q^2 range spanned by the available (e, e'p) data (Q^2<7(GeV/c)^2). It is argued that in this kinematical regime a stronger colour transparency signal can be observed in the low energy loss tail of the inclusive electron-n… more
Date: January 1, 1998
Creator: Benhar, Omar
Item Type: Refine your search to only Report
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Many-Body Correlation Effects on the Longitudinal Response in the Quasielastic (e, e') Reaction

Description: A study is made of the influence of many-body corrections on the longitudinal response function for the inclusive quasielastic (e, e') reaction. This response function is well known to be suppressed, by about a factor of two, when compared with theoretical predictions based on the concept of single nucleon ejection. This is a characteristic of the data that persists through a wide range of different nuclei and suggests a violation of the Coulomb sum rule. It is here shown how an estimation of t… more
Date: January 1, 1990
Creator: Van Orden, Jay & Boucher, Patrick
Item Type: Refine your search to only Article
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National Synchrotron Light Source Activity Report 1998.

Description: In FY 1998, following the 50th Anniversary Year of Brookhaven National Laboratory, Brookhaven Science Associates became the new Managers of BNL. The new start is an appropriate time to take stock of past achievements and to renew or confirm future goals. During the 1998 NSLS Annual Users Meeting (described in Part 3 of this Activity Report), the DOE Laboratory Operations Board, Chaired by the Under Secretary for Energy, Ernest Moniz met at BNL. By chance all the NSLS Chairmen except Martin Blum… more
Date: May 1, 1999
Creator: Rothman, E.
Item Type: Refine your search to only Report
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NREL Photovoltaic Program FY 1996 Annual Report

Description: This report summarizes the in-house and subcontract research and development (R&D) activities under the National Renewable Energy Laboratory (NREL) Photovoltaics (PV) Program from October 1, 1995 through September 30, 1996 (fiscal year [FY] 1996). The NREL PV Program is part of the U.S. Department of Energy's (DOE) National Photovoltaics Program, as described in the DOE Photovoltaics Program Plan, FY 1991 - FY 1995. The mission of the DOE National Photovoltaics Program is to: "Work in partnersh… more
Date: August 1, 1997
Item Type: Refine your search to only Report
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Lake Roosevelt Fisheries Evaluation Program : Limnological and Fisheries Monitoring Annual Report 1999.

Description: The Grand Coulee Dam was constructed in 1939 without a fish ladder, which eliminated steelhead (Onchorhynchus mykiss), chinook salmon (O. twshwastica), coho salmon (O. kisutch) and sockeye salmon (O. nerka) from returning to approximately 1,835 km (1,140 miles) of natal streams and tributaries found in the upper Columbia River Drainage in the United States and Canada. The Pacific Northwest Electric Power Planning and Conservation Act of 1980 gave the Bonneville Power Administration (BPA), the a… more
Date: August 1, 1999
Creator: McLellan, Holly; Lee, Chuck; Scofield, Ben & Pavlik, Deanne
Item Type: Refine your search to only Report
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Relativistic Nuclear Many-Body Theory

Description: Nonrelativistic models of nuclear systems have provided important insight into nuclear physics.In future experiments, nuclear systems will be examined under extreme conditions of dmensity and temperature, and their response will be probed at momentum and energy transfers larger than the nucleon mass.It is therefore essential to develop reliable models that go beyond the traditional nonrelativistic many-body framework.General properties of physics; such as quantum mechanics, Lorentz covariance, … more
Date: August 1, 1991
Creator: Serot, Brian & Walecka, J.
Item Type: Refine your search to only Article
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Relativistic one boson exchange model for the nucleon nucleon interaction

Description: Nucleon-nucleon data below 300-MeV laboratory energy are described by a manifestly covariant wave equation in which one of the intermediate nucleons is restricted to its mass shell. Antisymmetrization of the kernel yields an equation in which the two nucleons are treated in an {ital exactly} symmetric manner, and in which all amplitudes satisfy the Pauli principle {ital exactly}. The kernel is modeled by the sum of one boson exchanges, and four models, all of which fit the data very well ({chi}… more
Date: October 1, 1991
Creator: Gross, Franz; Van Orden, Jay & Holinde, Karl
Item Type: Refine your search to only Article
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The Pion Wave Function and QCD Sum Rules with Nonlocal Condensates

Description: The QCD sum rule calculation of the pion wave function by Chernyak and Zhitnitsky is implicitly assuming that the correlation length of vacuum fluctuations is large compared to the typical hadronic scale ~ 1/m(sub)p, so that one can substitute the orginal nonlocal objects like (q-bar(0)q(z)) by constant (q-bar(0)q(0))-type values.We outline a formalism enabling one to work directly with the nonlocal condensates, and construct a modified sum rule for the moments (Xi^N) of the pion wave function.… more
Date: October 1, 1991
Creator: Radyushkin, Anatoly & Mikhailov, Sergei
Item Type: Refine your search to only Article
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Physics Program in Hall A at CEBAF

Description: We present here the physics program planned for Hall A at CEBAF. It encompasses exclusive as well as inclusive electromagnetic measurements requiring both high precision and accuracy.The program includes measurements of the elementary form factors of the nucleon, systematic studies of the few nucleon systems (d, 3,4He), high momentum structure of nuclei, their structure at high Q^2 to look for hadronization and quark effects, spin response of nuclei via (vector-e, e'vector-p) reactions and the … more
Date: February 1, 1990
Creator: Saha, Arunava
Item Type: Refine your search to only Article
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Emittance Growth in TESLA

Description: The results of collective simulation of a typical TeV Energy Superconducting Linear Accelerator (TESLA) are reported. Because of accelerating gradient is low and the accelerator is long compared to other TeV colliders, betatron phase mixing must be suppressed along with the usual sources of emittance growth. Including single bunch effects, alignment tolerances consistent with reasonable emittance growth are given. When such tolerances are achieved, multibunch effects do not cause excessive effe… more
Date: May 1, 1991
Creator: Krafft, Geoffrey & Bisognano, Joseph
Item Type: Refine your search to only Article
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Cooperative Pre-College Educational Programs at the Continuous Electron Beam Accelerator Facility (CEBAF)

Description: The Continuous Electron Beam Accelerator Facility (CEBAF), under construction in Newport News, Virginia, is a particle accelerator laboratory for nuclear physics research funded by the U.S. Department of Energy. CEBAF's research and supporting technologies offer a rich environment for capturing the interest of and augmenting the experience of pre-college teachers and students. This paper describes some of the pre-college educational programs underway at CEBAF in collaboration with schools, coll… more
Date: January 1, 1992
Creator: Hartline, Beverly & Strozak, Kathryn
Item Type: Refine your search to only Report
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