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Review of window and filter requirements for commissioning of the Advanced Photon Source insertion device beamlines

Description: The Advanced Photon Source (APS) is building 16 insertion device (ID) front ends for the first phase of the project. Eleven of these are to be equipped with the APS Undulator A and the other five with a Wiggler-A-type source. The Undulator A front ends are designed to operate in a ``windowless`` mode using an APS-designed differential pump. However, during beamline commissioning and early operations of the storage ring, it is prudent to install windows to ensure storage ring vacuum safety befor… more
Date: June 2, 1994
Creator: Kuzay, T. M. & Wang, Zhibi
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MeVVA source of primary metallic ions for SuperEBIS. Informal report

Description: Generation of high charge state heavy metallic ions including uranium has been successful in a number of EBIS (Electron Beam Ion Source) devices. The best results have been obtained in devices utilizing injection of primary, low charge state, ions from an external ion source into the EBIS trap for further ionization into higher charge states. In one such device, named EBIT (Electron Beam Ion Trap), a MeVVA ion source is used as an injector of primary metallic ions into the EBIT trap. The author… more
Date: June 2, 1994
Creator: Hershcovitch, A.; Kponou, A. & McCafferty, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A time-of-flight spectrometer for SuperEBIS. Informal report

Description: A time-of-flight (TOF) spectrometer for determining ion species and charge states which are produced by ion sources has been constructed. It will be used to analyze the output of SuperEBIS, an Electron Beam Ion Source (EBIS) presently being assembled at BNL. Its design closely follows that of Weisgerber, which is based on the original work of Mamyrin. The spectrometer has been tested with an ion beam from a MEVVA ion source using titanium and uranium cathodes.
Date: June 2, 1994
Creator: Kponou, A.; Hershcovitch, A.; McCafferty, D. & Usack, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Magnetic field measurements of the superEBIS superconducting magnet. Informal report

Description: SuperEBIS was designed to have a solenoidal magnetic field of a 5 Tesla strength with a 120 cm long bore. The field was specified to be straight within 1 part in 10000 within the bore, and uniform to within 1 part in 1000 within the central 90 cm. Magnetic field measurements were performed with a computerized magnetic field measuring setup that was borrowed from W. Sampson`s group. A preliminary test was made of a scheme to determine if the magnetic and mechanical axes of the solenoid coincided… more
Date: June 2, 1994
Creator: Herschcovitch, A.; Kponou, A.; Clipperton, R.; Hensel, W. & Usack, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

{mu}{sup +} SR studies of magnetic properties of boron carbide superconductors

Description: Positive-muon spin rotation ({mu}{sup +}SR) has been carried out in the recently discovered rare-earth boron carbide superconductors RNi{sub 2}B{sub 2}C, R = Ho, Er and Tm. For R = Ho and Er zero-field {mu}{sup +}SR measurements showed a well-defined internal field below the Neel temperatures (TN {approx} 5.5 K) coexisting with the superconducting state down to 0.1 K. The observed temperature dependence of the order parameter in R = Ho is consistent with a 2-dimensional Ising model. For R = Tm … more
Date: June 2, 1994
Creator: Le, L. P.; Heffner, R. H.; Nieuwenhuys, G. J.; Canfield, P. C.; Amato, A.; Feyerherm, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

[Letter from Julie Anne Abel to D. Jack Davis, June 2, 1994]

Description: A letter from Julie Anne Abel, Program Associate for The Getty Center for Education in the Arts, to D. Jack Davis, Vice Provost at the University of North Texas and Co-Director of the North Texas Institute for Educators on the Visual Arts, about an enclosed signed copy of The Getty Center March 31, 1994 agreement with UNT on behalf of NTIEVA. Mary Day, Mark Elder, R. William McCarter and Vicki Rosenberg are cc'd at the bottom of the document. In a second letter from Leilani Lattin Duke informs … more
Date: June 2, 1994
Creator: Abel, Julie Anne
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
open access

[Letter from Vicki J. Rosenberg to Sheila Brown, D. Jack Davis, R. William McCarter, Anne Lindsey, Jeff Patchen, Nancy MacGregor and Michael Parsons, June 2, 1994]

Description: A letter from Vicki J. Rosenberg to Sheila Brown, D. Jack Davis, R. William McCarter, Anne Lindsey, Jeff Patchen, Nancy MacGregor and Michael Parsons about attaching the guidelines for the Getty Center for Education in the Arts' National Specialty Program development grants. Attached is the guidelines.
Date: June 2, 1994
Creator: Rosenberg, Vicki J.
Item Type: Refine your search to only Letter
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Chemical Fire]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 2, 1994, 5:00 p.m.
Duration: 39 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Evidence]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 2, 1994, 10:00 p.m.
Duration: 1 minute 52 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Budget DISD]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 2, 1994, 6:00 p.m.
Duration: 41 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections

[News Clip: Mosquitos]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 2, 1994, 6:00 p.m.
Duration: 1 minute 43 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: DISD Election]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: June 2, 1994, 10:00 p.m.
Duration: 1 minute 49 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
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