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Preliminary evaluation of Am/Cm melter feed preparation process upset recovery flowsheets

Description: This document summarizes the results from the development of flowsheets to recover from credible processing errors specified in TTR 99-MNSS/SE-006. The proposed flowsheets were developed in laboratory scale equipment and will be utilized with minor modifications for full scale demonstrations in the Am/Cm Pilot Facility.
Date: January 20, 2000
Creator: Stone, M. E. & DuVall, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ISOcxx: The C++ portability package

Description: The level of C++ compliers' adherence to the ISO C++ standard varies considerably from compiler to compiler. This variability has significantly hindered users' attempts as standard-compliant C++ coding practices. ISOcxx is a software package that addresses such deficient aspects of users' C++ development environments. This portability package: (1) probes an environment to identify areas of non-compliance (defects) with the standard, and (2) supplies, where possible, compliance code so as to mit… more
Date: February 9, 2000
Creator: Brown, W.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Comment on the generalized Gerasimov-Drell-Hearn sum rule in chiral perturbation theory

Description: The author comments on the application of the chiral expansion to generalize the Gerasimov-Drell-Hearn sum rule for finite Q-squared. The observation, made by several authors, that the corrections to the leading order contributions are large and limit the applicability to a very small range in Q-squared are valid when considering the generalization of the sum rule for protons and neutrons, separately. However, when using the proton-neutron difference, the application of chiral perturbation theo… more
Date: March 1, 2000
Creator: Burkert, Volker D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Robust bearing estimation for 3-component stations

Description: A robust bearing estimation process for 3-component stations has been developed and explored. The method, called SEEC for Search, Estimate, Evaluate and Correct, intelligently exploits the inherent information in the arrival at every step of the process to achieve near-optimal results. In particular the approach uses a consistent framework to define the optimal time-frequency windows on which to make estimates, to make the bearing estimates themselves, to construct metrics helpful in choosing t… more
Date: February 1, 2000
Creator: CLAASSEN,JOHN P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bandwidth requirements for fine resolution squinted SAR

Description: The conventional rule-of-thumb for Synthetic Aperture Radar is that an RF bandwidth of c/(2{rho}{sub r}) is required to image a scene at the desired slant-range resolution {rho}{sub r}, and perhaps a little more to account for window functions and sidelobe control. This formulation is based on the notion that the total bandwidth required is the same bandwidth that is required for a single pulse. What is neglected is that efficient processing of an entire synthetic aperture of pulses will often … more
Date: March 1, 2000
Creator: Doerry, Armin W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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J/{sub psi} production: Tevatron and fixed-target collisions

Description: In this talk the author shows the results of a fit of the NRQCD matrix elements to the CDF data for direct J/{psi} production, by including the radiative corrections to the g g {r_arrow} {sup 3} S {sub 1}{sup [1]} channel and the effect of the k{sub T}-smearing. Furthermore he performs the NLO NRQCD analysis of J/{psi} production in fixed-target proton-nucleon collisions and he fits the colour-octet matrix elements to the available experimental data. The results are compared to the Tevatron one… more
Date: June 1, 2000
Creator: Petrelli, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Radiative corrections for (e,e{prime}p) reactions at GeV energies

Description: A general framework for applying radiative corrections to (e,e{prime}p) coincidence reactions at GeV energies is presented, with special emphasis to higher-order Bremsstrahlung effects, radiation from the scattered hadron, and the validity of peaking approximations. The sensitivity to the assumptions made in practically applying radiative corrections to (e,e{prime}p) data is extensively discussed. The general framework is tested against experimental data of the {sup 1}H(e,e{prime}p) reaction at… more
Date: May 1, 2000
Creator: Ent, R.; Filippone, B. W.; Makins, N. C. R.; Milner, R. G.; O'Neill, T. G. & Wasson, D. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Calculation of the QED correction to the recoil proton polarization by the electron structure function method

Description: Model independent radiative correction to the recoil proton polarization for the elastic electron-proton scattering is calculated within method of electron structure functions. The explicit expressions for the recoil proton polarization are represented as a contraction of the electron structure and the hard part of the polarization dependent contribution into cross-section. The calculation of the hard part with first order radiative correction is performed. The obtained representation includes … more
Date: December 1, 2000
Creator: Afanasev, A. V.; Akushevich, I. & Merenkov, N. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Electroweak measurements from hadron machines

Description: The discovery of the W and Z gauge bosons at the Sp{bar p}S in 1983 marked the beginning of direct electroweak measurements at a hadron machine. These measurements vindicated the tree level predictions of the Standard Model. The new generation of hadron collider machines now have data of such precision that the electroweak measurements are probing the quantum corrections to the Standard Model. The importance of these quantum corrections was recognized in the award of the 1999 Nobel Price. These… more
Date: May 25, 2000
Creator: Lancaster, Mark
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Correction of high gradient quadrupole harmonics with magnetic shims

Description: Superconducting quadrupole magnets with 70 mm aperture and nominal field gradient of 215 T/m are being developed by the US-LHC Accelerator Project for the Interaction Regions of the Large Hadron Collider. Due to large beam size and orbit displacement in the final focusing triplet, these magnets are subject to stringent field quality requirements. For this reason, a correction scheme based on magnetic shims was investigated. This paper reports design calculations, fabrication issues and tests re… more
Date: January 26, 2000
Creator: Sabbi, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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QCD corrections to lifetime differences of B{sub s} mesons

Description: The calculation of QCD corrections to the width difference {Delta}{Lambda} in the B{sub s}meson system is presented. The next-to-leading order corrections reduce the dependence on the renormalization scale significantly and allow for a meaningful use of hadronic matrix elements from lattice gauge theory. At present the uncertainty of the lattice calculations limits the prediction of {Delta}{Lambda}. The presented work has been performed in collaboration with Martin Beneke, Gerhard Buchalla, Chr… more
Date: September 28, 2000
Creator: Nierste, Ulrich
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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New understanding of poloidal rotation measurements in a tokamak plasma

Description: Significant atomic physics corrections to the measured poloidal velocity using charge exchange spectroscopy have been neglected when interpreting impurity poloidal velocity. In the presence of a magnetic field, the gyro motion of the impurity ion along with the finite lifetime of the observed state results in an additional line shift that scales with ion temperature and magnetic field strength. Effects of collisions on the lifetime of excited states, cascades from higher longer-lived n levels, … more
Date: May 15, 2000
Creator: Bell, R.E. & Synakowski, E.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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