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UNT Libraries Government Documents Department
308
Private Collection of Jim Bell
154
Oklahoma Historical Society
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UNT Music Library
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Sterling Municipal Library
11
Sweetwater/Nolan County City-County Library
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Carl Albert Congressional Research and Studies Center
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National Museum of the Pacific War/Admiral Nimitz Foundation
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Collection
Office of Scientific & Technical Information Technical Reports
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Jim Bell Texas Architecture Photograph Collection
154
Texas Digital Newspaper Program
140
Congressional Research Service Reports
80
Oklahoma Digital Newspaper Program
52
Tocker Foundation Grant
47
The Greensheet
31
Government Accountability Office Reports
20
President Gretchen Bataille Records
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College of Music Recordings
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1500 MHZ Passive SRF Cavity for Bunch Lengthening in the NSLS-II Storage Ring
NSLS-II is a new ultra-bright 3 GeV 3rd generation synchrotron radiation light source. The performance goals require operation with a beam current of 500mA and a bunch current of at least 0.5mA. Ion clearing gaps are required to suppress ion effects on the beam. The natural bunch length of 3mm is planned to be lengthened by means of a third harmonic cavity in order to increase the Touschek limited lifetime. After an extensive investigation of different cavity geometries, a passive, superconducting two-cell cavity has been selected for prototyping. The cavity is HOM damped with ferrite absorbers on the beam pipes. The two-cell cavity simplifies the tuner design, compared to having two independent cells. Tradeoffs between the damping of the higher order modes, thermal isolation associated with the large beam tubes, and overall cavity length are described. A copper prototype has been constructed, and measurements of fundamental and higher order modes will be compared to calculated values.
Date:
May 4, 2009
Creator:
Yanagisawa,T.; Rose, J.; Grimm, T. & Bogle, A.
Object Type:
Article
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 39, No. 3, Ed. 1 Friday, September 4, 2009
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 4, 2009
Creator:
Price, Racheal
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 39, No. 13, Ed. 1 Friday, December 4, 2009
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
December 4, 2009
Creator:
Price, Racheal
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
1891 Colorado County Courthouse Chairs
Photograph of three side chairs in the district courtroom in the 1891 Colorado County courtroom in down town Columbus, Texas.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Interior
Photograph of four wooden chairs sitting against a low wooden gate inside of the Colorado County courthouse.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Interior Ceiling
Photograph of the ceiling in the district courtroom in the 1891 Colorado County courthouse in downtown Columbus, Texas. A light fixture hangs down in front of a window.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of repaired and repainted windows on the north side of the second floor of the 1891 Colorado County Courthouse restoration project. The window and walls are covered with metal scaffolding.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of a double window on the north side of the first floor that has been repaired and repainted for the 1891 Colorado Courthouse Restoration Project.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of restoration in progress on the 1891 Colorado County courthouse in downtown Columbus, Texas. The view is of the north side of the courthouse facing U.S. Highway 90. Scaffolding covers the stone building.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of a construction crane operating on the northwest courthouse lawn. The crane is lifting bundles of tiles to the roof level.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of a restoration project under way on the 1890 - 1891 Classic Revival style Colorado County courthouse in down town Columbus, Texas. The original design was Classic Revival Style, with a clock and bell tower. A tornado toppled the tower and buried the bell in the lawn. The clock and bell tower were replaced with a dome and clocks. Re-modeled in the 1930s with out many changes of outside appearance. Today the Colorado County courthouse is still an example of the Classic Revival style.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of the restoration of the 1891 Colorado County courthouse in downtown Columbus, Texas. Metal scaffolding stands against the walls of the stone building. A clock face sits against a chain link fence on the lawn below.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of restoration work on the 1891 Colorado County courthouse in downtown Columbus, Texas.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration
Photograph of the west side of the Colorado County courthouse during a restoration project. The building is covered with scaffolding.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of the inside of the west entrance door of the 1891 Colorado County courthouse in downtown Columbus, Texas. Sign on doors advises to use north exit only. Marble floors, double entry doors with a wide transom, and brass light fixture.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of a doorway and wooden stairs inside of the Colorado County courthouse in Columbus, Texas. A floral light fixture hangs over the entryway.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of a green Tiffany glass dome in the ceiling of the Colorado County courthouse.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of a light fixture hanging down from an ornate target pattern on a ceiling within the Colorado County courthouse of Columbus, Texas.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of light fixtures hanging over a courtroom in the Colorado County courthouse in Columbus, Texas. Benches sit in the foreground while chairs are surrounded by a wooden fence.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of the jury box in the district courtroom in the 1891 Colorado County courthouse in downtown Columbus, Texas.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of a wall light fixture in the district courtroom in the 1891 Colorado County courthouse in down town Columbus, Texas.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of a stairway in the interior of the Colorado County courthouse. The wooden stairs wind past windows and off white-walls. A small chandelier hangs on the wall under the landing over the floor above.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of the north entry hall of the 1891 Colorado County courthouse in down town Columbus, Texas. The interior features detailed woodwork, tall transom doors, arched hall decoration, brass light fixtures, marble floors, and historic photographs on the walls.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History
1891 Colorado County Courthouse Restoration Interior
Photograph of an ornamental Jack-in-the-pulpit in the east to west hall of the 1891 Colorado County courthouse in downtown Columbus, Texas. The golden plant is inlaid into the wall near a banister.
Date:
November 4, 2009
Creator:
Bell, Jim
Object Type:
Photograph
System:
The Portal to Texas History