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Mechanical design of a high field common coil magnet

Description: A common coil design for high field 2-in-1 accelerator magnets has been previously presented as a 'conductor-friendly' option for high field magnets applicable for a Very Large Hadron Collider. This paper presents the mechanical design for a 14 tesla 2-in-1 dipole based on the common coil design approach. The magnet will use a high current density Nb{sub 3}Sn conductor. The design addresses mechanical issues particular to the common coil geometry: horizontal support against coil edges, vertical… more
Date: March 18, 1999
Creator: Caspi, S.; Chow, K.; Dietderich, D.; Gourlay, S.; Gupta, R.; McInturff, A. et al.
Partner: UNT Libraries Government Documents Department
open access

A machining parameter study to select best conditions for SPDT of large single-crystal silicon optics

Description: The interdependence of process parameters on diamond turning of single-crystal silicon is poorly understood. An experimental design technique based on methods of statistical analysis permits the determination of a specific parameter's influence and its co-dependence on other factors. This design technique enables the creation of an experimental matrix, considering all input parameters (surface velocity; feed rate; depth of cut; tool radius; tool rake/skew angle; cutting fluid), while substantia… more
Date: March 18, 1999
Creator: Carr, J W; Davis, P J; Haack, J K; Krulewich, D A; McClellan, M R & Zimmermann, M
Partner: UNT Libraries Government Documents Department
open access

Web-based document and content management with off-the-shelf software

Description: This, then, is the current status of the project: Since we made the switch to Intradoc, we are now treating the project as a document and image management system. In reality, it could be considered a document and content management system since we can manage almost any file input to the system such as video or audio. At present, however, we are concentrating on images. As mentioned above, my CRADA funding was only targeted at including thumbnails of images in Intradoc. We still had to modify In… more
Date: March 18, 1999
Creator: Schuster, J
Partner: UNT Libraries Government Documents Department
open access

Bent Superconducting Solenoids for the Muon Cooling Experiment

Description: This report describes some solenoid design work done for the cooling experiment for the muon collider collaboration. This report describes an analysis section of superconducting solenoids that have a center line induction of 3.0 T. The section is bent in the shape of an S. Each bend in the S bends the muon beam one radian (57.3 degrees). The warm bore diameter of the solenoid bent solenoid is 300 to 320 mm. The radius of the bend at the solenoid center line is 1000 mm. This report shows the res… more
Date: March 18, 1999
Creator: Green, M. A.; Eyssa, Y.; Kenney, S.; Miller, J. R.; Prestemon, S. & Wang, S. T.
Partner: UNT Libraries Government Documents Department
open access

Operational Characteristics, parameters, and history of a 13T Nb3Sn dipole

Description: The early design and test results have been previously reported. During the subsequent operation of 'D20' the accelerator prototype dipole has provided both additional and more detailed data as to its characteristics and performance. D20's use as a test facility for high field critical current measurements has provided operational experience and history pertammg to accelerator required characteristics. There has been recently obtained data related to field quality, operational reproducibility a… more
Date: March 18, 1999
Creator: Benjegerdes, R.; Bish, P.; Caspi, S.; Chow, K.; Dietderich, D.; Hannaford, R. et al.
Partner: UNT Libraries Government Documents Department
open access

Single sector supersymmetry breaking

Description: We review recent work on realistic models that break supersymmetry dynamically and give rise to composite quarks and leptons, all in a single sector. These models have a completely natural suppression of flavor-changing neutral currents, and the hierarchy of Yukawa couplings is explained by the dimensionality of composite states. The generic signatures are unification of scalar masses with different quantum numbers at the compositeness scale, and lighter gaugino, Higgsino, and third-generation … more
Date: March 18, 1999
Creator: Luty, Markus A. & Terning, John
Partner: UNT Libraries Government Documents Department
open access

Chemometric Analysis of Two Dimensional Decay Data: Application to {sup 17}O NMR Relaxation Matrices

Description: The use of {sup 17}O NMR spectroscopy as a tool to investigate aging in polymer systems has recently been demonstrated. Because the natural abundance of {sup 17}O is extremely low (0.037%), the use of labeled {sup 17}O{sub 2} during the oxidation of polymers produces {sup 17}O NMR spectra whose signals arise entirely from the degradation species (i.e. signals from the bulk or unaged material are not observed). This selective isotopic labeling eliminates the impact of interference from the unage… more
Date: March 18, 1999
Creator: Alam, M. K. & Alam, T. M.
Partner: UNT Libraries Government Documents Department
open access

Oxidation Effects on the Friction of Lubricants and Self-Lubricating Materials in the Enduring Stockpile

Description: Predictive models of solid lubricant performance are needed to determine the dynamic behavior of electromechanical devices after long periods of storage. X-ray photoelectron spectroscopy has been used to determine the kinetics of oxidation and sulfate formation for solid lubricants and self-lubricating materials containing MoS{sub 2}, exposed to a variety of oxidation conditions. The frictional performance of the lubricant has then been determined as a fi.mction of its surface chemistry and the… more
Date: March 18, 1999
Creator: Dugger, M. T.; Peebles, D. E.; Ohlhausen, J. A.; Robinson, J. A.; Sorroche, E. H. & Fanska, J.
Partner: UNT Libraries Government Documents Department
open access

BTFS: The Border Trade Facilitation System

Description: The author demonstrates the Border Trade Facilitation System (BTFS), an agent-based bilingual e-commerce system built to expedite the regulation, control, and execution of commercial trans-border shipments during the delivery phase. The system was built to serve maquila industries at the US/Mexican border. The BTFS uses foundation technology developed here at Sandia Laboratories' Advanced Information Systems Lab (AISL), including a distributed object substrate, a general-purpose agent developme… more
Date: March 18, 1999
Creator: Phillips, L.R.
Partner: UNT Libraries Government Documents Department
open access

A Multi-Attribute Utility Decision Analysis for Treatment Alternatives for the DOE/SR Aluminum-Based Spent Nuclear Fuel

Description: A multi-attribute utility analysis is applied to a decision process to select a treatment method for the management of aluminum-based spent nuclear fuel (Al-SNF) owned by the US Department of Energy (DOE). DOE will receive, treat, and temporarily store Al-SNF, most of which is composed of highly enriched uranium, at its Savannah River Site in South Carolina. DOE intends ultimately to send the treated Al-SNF to a geologic repository for permanent disposal. DOE initially considered ten treatment … more
Date: March 18, 1999
Creator: Davis, F.; Weiner, R.; Wheeler, T.; Sorenson, K. & Kuzio, K.
Partner: UNT Libraries Government Documents Department
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