Setup and Performance of the Rhic Injector Accelerators for the 2005 Run With Copper Ions. (open access)

Setup and Performance of the Rhic Injector Accelerators for the 2005 Run With Copper Ions.

Copper ions for the 2005 run [1] of the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) are accelerated in the Tandem, Booster and AGS prior to injection into RHIC. The setup and performance of these accelerators with copper are reviewed in this paper.
Date: May 16, 2005
Creator: Ahrens, L.; Alessi, J. & Gardner, C. J.
Object Type: Article
System: The UNT Digital Library
Acceleration of Polarized Protons in the Ags With Two Helical Partial Snakes. (open access)

Acceleration of Polarized Protons in the Ags With Two Helical Partial Snakes.

The RHIC spin program requires 2 x 10{sup 11} proton/bunch with 70% polarization. As the injector to RHIC, AGS is the bottleneck for preserving polarization: there is no space for a full snake to overcome numerous depolarizing resonances. An ac dipole and a partial snake have been used to preserve beam polarization in the past few years. Two helical snakes have been built and installed in the AGS. With careful setup of optics at injection and along the ramp, this combination can eliminate all depolarizing resonances encountered during acceleration. This paper presents the setup and preliminary results.
Date: May 16, 2005
Creator: Huang, H.; Ahrens, L.; Bai, M.; Brown, K.; Courant, E. D.; Gardner, C. et al.
Object Type: Article
System: The UNT Digital Library
Performance Limitations in High-Energy Ion Colliders (open access)

Performance Limitations in High-Energy Ion Colliders

High-energy ion colliders (hadron colliders operating with ions other than protons) are premier research tools for nuclear physics. The collision energy and high luminosity are important design and operations considerations. The experiments also expect flexibility with frequent changes in the collision energy, detector fields, and ion species, including asymmetric collisions. For the creation, acceleration, and storage of bright intense ion beams limits are set by space charge, charge exchange, and intrabeam scattering effects. The latter leads to luminosity lifetimes of only a few hours for intense heavy ions beams. Currently, the Relativistic Heavy Ion Collider (RHIC) at BNL is the only operating high-energy ion collider. Later this decade the Large Hadron Collider (LHC), under construction at CERN, will also run with heavy ions.
Date: May 16, 2005
Creator: Fischer, W.
Object Type: Article
System: The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 110, No. 50, Ed. 1 Friday, December 16, 2005 (open access)

The Clifton Record (Clifton, Tex.), Vol. 110, No. 50, Ed. 1 Friday, December 16, 2005

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: December 16, 2005
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 110, No. 37, Ed. 1 Friday, September 16, 2005 (open access)

The Clifton Record (Clifton, Tex.), Vol. 110, No. 37, Ed. 1 Friday, September 16, 2005

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: September 16, 2005
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
POLARIZED PROTON COLLISIONS AT RHIC. (open access)

POLARIZED PROTON COLLISIONS AT RHIC.

The Relativistic Heavy Ion Collider provides not only collisions of ions but also collisions of polarized protons. In a circular accelerator, the polarization of polarized proton beam can be partially or fully lost when a spin depolarizing resonance is encountered. To preserve the beam polarization during acceleration, two full Siberian snakes were employed in RHIC. In 2002, polarized proton beams were first accelerated to 100 GeV and collided in RHIC. Beams were brought into collisions with longitudinal polarization at the experiments STAR and PHENIX by using spin rotators. Optimizing polarization transmission efficiency and improving luminosity performance are significant challenges. Currently, the luminosity lifetime in RHIC is limited by the beam-beam effect. The current state of RHIC polarized proton program, including its dedicated physics run in 2005 and efforts to optimize luminosity production in beam-beam limited conditions are reported.
Date: May 16, 2005
Creator: Bai, M.; Ahrens, L.; Alekseev, I. G.; Alessi, J. & AL., ET
Object Type: Article
System: The UNT Digital Library
Characterization of 200-UP-1 Aquifer Sediments and Results of Sorption-Desorption Tests Using Spiked Uncontaminated Groundwater (open access)

Characterization of 200-UP-1 Aquifer Sediments and Results of Sorption-Desorption Tests Using Spiked Uncontaminated Groundwater

Core characterization showed only 4 out of 13 core liner samples were intact samples and that the others were slough material. The intact samples showed typical Ringold Unit E characteristics such as being dominated by gravel and sand. Moderately reducing conditions are inferred in some core from borehole C4299. This reducing condition was caused by the hard tool process used to drill the wells. One core showed significant presence of ferric iron oxide/clay coatings on the gravels. There were no highly contaminated sediments found in the cores from the three new boreholes in UP-1 operable unit, especially for uranium. The presence of slough and ''flour'' caused by hard tooling is a serious challenge to obtaining field relevant sediments for use in geochemical experiments to determine the adsorption-desorption tendencies of redox sensitive elements such as uranium. The adsorption of COCs on intact Ringold Formation sediments and Fe/clay coatings showed that most of the anionic contaminants [Tc(VII), Se(VI), U(VI), Cr(VI), and I(-I)] did not adsorbed very well compared to cationic [Np(V), Sr(II), and Cs(I)] radionuclides. The high hydrous iron oxide content in Fe/clay coatings caused the highest Kd values for U and Np, suggesting these hydrous oxides are the key solid adsorbent …
Date: November 16, 2005
Creator: Um, Wooyong; Serne, R JEFFREY.; Bjornstad, Bruce N.; Schaef, Herbert T.; Brown, Christopher F.; Legore, Virginia L. et al.
Object Type: Report
System: The UNT Digital Library
Present Status and First Experiments on the National Ignition Facility (open access)

Present Status and First Experiments on the National Ignition Facility

None
Date: November 16, 2005
Creator: Landen, O L
Object Type: Article
System: The UNT Digital Library
Port Aransas South Jetty (Port Aransas, Tex.), Vol. 35, No. 24, Ed. 1 Thursday, June 16, 2005 (open access)

Port Aransas South Jetty (Port Aransas, Tex.), Vol. 35, No. 24, Ed. 1 Thursday, June 16, 2005

Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with extensive advertising.
Date: June 16, 2005
Creator: Judson, Mary Henkel
Object Type: Newspaper
System: The Portal to Texas History
Operations and Performance of Rhic as a Cu-Cu Collider. (open access)

Operations and Performance of Rhic as a Cu-Cu Collider.

The 5th year of RHIC operations, started in November 2004 and expected to last till June 2005, consists of a physics run with Cu-Cu collisions at 100 GeV/u followed by one with polarized protons (pp) at 100 GeV [l]. We will address here the overall performance of the RHIC complex used for the first time as a Cu-Cu collider, and compare it with previous operational experience with Au, PP and asymmetric d-Au collisions. We will also discuss operational improvements, such as a {beta}* squeeze to 85cm in the high luminosity interaction regions from the design value of 1m, system improvements, machine performance and limitations, and address reliability and uptime issues.
Date: May 16, 2005
Creator: Pilat, R.; Ahrens, L.; Bai, M.; Barton, D. S. & Al., Et
Object Type: Article
System: The UNT Digital Library
RISK REDUCTION FOR MATERIAL ACCOUNTABILITY UPGRADES. (open access)

RISK REDUCTION FOR MATERIAL ACCOUNTABILITY UPGRADES.

We present in this paper a method for evaluating explicitly the contribution of nuclear material accountability upgrades to risk reduction at nuclear facilities. The method yields the same types of values for conditional risk reduction that physical protection and material control upgrades yield. Thereby, potential material accountability upgrades can be evaluated for implementation in the same way that protection and control upgrades are evaluated.
Date: May 16, 2005
Creator: FISHBONE, L. G. & SISKIND, B.
Object Type: Article
System: The UNT Digital Library
The Optimist (Abilene, Tex.), Vol. 94, No. 25, Ed. 1, Wednesday, November 16, 2005 (open access)

The Optimist (Abilene, Tex.), Vol. 94, No. 25, Ed. 1, Wednesday, November 16, 2005

Weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date: November 16, 2005
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 90, No. 159, Ed. 1 Wednesday, March 16, 2005 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 90, No. 159, Ed. 1 Wednesday, March 16, 2005

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: March 16, 2005
Creator: Broaddus, Matthew B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Tulia Herald (Tulia, Tex.), Vol. 97, No. 24, Ed. 1 Thursday, June 16, 2005 (open access)

The Tulia Herald (Tulia, Tex.), Vol. 97, No. 24, Ed. 1 Thursday, June 16, 2005

Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date: June 16, 2005
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 130, No. 3, Ed. 1 Thursday, June 16, 2005 (open access)

The Albany News (Albany, Tex.), Vol. 130, No. 3, Ed. 1 Thursday, June 16, 2005

Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date: June 16, 2005
Creator: Lucas, Melinda L.
Object Type: Newspaper
System: The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 123, No. 83, Ed. 1 Sunday, October 16, 2005 (open access)

Polk County Enterprise (Livingston, Tex.), Vol. 123, No. 83, Ed. 1 Sunday, October 16, 2005

Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date: October 16, 2005
Creator: White, Barbara
Object Type: Newspaper
System: The Portal to Texas History
RHIC OPERATIONAL STATUS. (open access)

RHIC OPERATIONAL STATUS.

As the first hadron accelerator and collider consisting of two independent superconducting rings RHIC has operated with a wide range of beam energies and particle species. Machine operation and performance will be reviewed that includes high luminosity gold-on-gold and copper-on-copper collisions at design beam energy (100 GeV/u), asymmetric deuteron-on-gold collisions as well as high energy polarized proton-proton collisions (100 GeV on 100 GeV). Plans for future upgrades of RHIC will also be discussed.
Date: May 16, 2005
Creator: ROSER, T.
Object Type: Article
System: The UNT Digital Library
Oral History Interview with Joy Taylor, August 16, 2005 transcript

Oral History Interview with Joy Taylor, August 16, 2005

The National Museum of the Pacific War presents an oral interview with Joy (Cheatham) Taylor. Taylor begins with a summary of her siblings and provides details about an older brother who served in the Navy during World War II aboard the USS Saratoga (CV-3). Taylor reflects on rationing items like gasoline. She also mentions corresponding with her two older brothers in the Navy. Taylor's father died in 1943 and she and her mother went to live on the farm with Taylor's grandparents in Coryell County, Texas. She recalls several aspects of farm living during World War II. Taylor also mentions housing for soldiers near Fort Hood, Texas as well as gardening and canning vegetables. She talks about her having to wear homemade clothes made from feed sacks, which she disliked. Taylor recalls the end of the war and ringing the church bell all night in town. After the war, she helped her brother run a cafe in Abilene before she met her husband, Paul Taylor, and got married.
Date: August 16, 2005
Creator: Taylor, Joy
Object Type: Sound
System: The Portal to Texas History
The Archer Advocate (Holliday, Tex.), Vol. 2, No. 50, Ed. 1 Wednesday, March 16, 2005 (open access)

The Archer Advocate (Holliday, Tex.), Vol. 2, No. 50, Ed. 1 Wednesday, March 16, 2005

Weekly newspaper from Holliday, Texas that includes local, state, and national news along with advertising.
Date: March 16, 2005
Creator: Thomas, John
Object Type: Newspaper
System: The Portal to Texas History
Cherokeean Herald (Rusk, Tex.), Vol. 156, No. 39, Ed. 1 Wednesday, November 16, 2005 (open access)

Cherokeean Herald (Rusk, Tex.), Vol. 156, No. 39, Ed. 1 Wednesday, November 16, 2005

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: November 16, 2005
Creator: Whitehead, Marie
Object Type: Newspaper
System: The Portal to Texas History
The Archer Advocate (Holliday, Tex.), Vol. 2, No. 46, Ed. 1 Wednesday, February 16, 2005 (open access)

The Archer Advocate (Holliday, Tex.), Vol. 2, No. 46, Ed. 1 Wednesday, February 16, 2005

Weekly newspaper from Holliday, Texas that includes local, state, and national news along with advertising.
Date: February 16, 2005
Creator: Thomas, John
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 84, No. 252, Ed. 1 Tuesday, August 16, 2005 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 84, No. 252, Ed. 1 Tuesday, August 16, 2005

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: August 16, 2005
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 39, No. 61, Ed. 1 Thursday, June 16, 2005 (open access)

Today Cedar Hill (Duncanville, Tex.), Vol. 39, No. 61, Ed. 1 Thursday, June 16, 2005

Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date: June 16, 2005
Creator: Gooch, Robin
Object Type: Newspaper
System: The Portal to Texas History
Levelland and Hockley County News-Press (Levelland, Tex.), Vol. 27, No. 83, Ed. 1 Sunday, January 16, 2005 (open access)

Levelland and Hockley County News-Press (Levelland, Tex.), Vol. 27, No. 83, Ed. 1 Sunday, January 16, 2005

Semiweekly newspaper from Levelland, Texas that includes local, state, and national news along with advertising.
Date: January 16, 2005
Creator: Rigg, John
Object Type: Newspaper
System: The Portal to Texas History