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Side extraction duoPIGatron-type ion source.

Description: We have designed and constructed a compact duoPIGatron-type ion source, for possible use in ion implanters, in such the ion can be extracted from side aperture in contrast to conventional duoPIGatron sources with axial ion extraction. The size of the side extraction aperture is 1x40 mm. The ion source was developed to study physical and technological aspects relevant to an industrial ion source. The side extraction duoPIGatron has stable arc, uniformly bright illumination, and dense plasma. The… more
Date: August 26, 2007
Creator: Gushenets, V. I.; Oks, E. M.; Herschovitch, A. & Johnson, B. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

BERNAS ION SOURCE DISCHARGE SIMULATION

Description: The joint research and development program is continued to develop steady-state ion source of decaborane beam for ion implantation industry. Bemas ion source is the wide used ion source for ion implantation industry. The new simulation code was developed for the Bemas ion source discharge simulation. We present first results of the simulation for several materials interested in semiconductors. As well the comparison of results obtained with experimental data obtained at the ITEP ion source test… more
Date: August 26, 2007
Creator: Rudskoy, I.; Kulevoy, T. V.; Petrenko, S. V.; Kuibeda, R. P.; Seleznev, D. N.; Pershin, v. I. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Model Simulations of Continuous ION Interjection Into EBIS Trap with Slanted Electrostatic Mirror

Description: The efficiency of trapping ions in an EBIS is of primary importance for many applications requiring operations with externally produced ions: RIA breeders, ion sources, traps. At the present time, the most popular method of ion injection is pulsed injection, when short bunches of ions get trapped in a longitudinal trap while traversing the trap region. Continuous trapping is a challenge for EBIS devices because mechanisms which reduce the longitudinal ion energy per charge in a trap (cooling wi… more
Date: August 26, 2007
Creator: Pikin, A.; Kponou, A.; Alessi, J. G.; Beebe, E. N.; Prelec, K. & Raparia, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effectiveness of Electrostatic Shielding and Electronic Subtraction to Correct for the Hole Trapping in Cdznte Semiconductor Detectors.

Description: CdZnTe (CZT) is a very promising material for nuclear-radiation detectors. CZT detectors operate at ambient temperatures and offer high detection efficiency and excellent energy resolution, placing them ahead of high-purity Ge for those applications where cryogenic cooling is problematic. The progress achieved in CZT detectors over the past decade is founded on the developments of robust detector designs and readout electronics, both of which helped to overcome the effects of carrier trapping. … more
Date: August 26, 2007
Creator: Bolotnikov, A. E.; Camarda, G. S.; Hossain, A.; Cui, Y. & James, R. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

STATUS OF ITEP DECABORANE ION SOURCE PROGRAM.

Description: The joint research and development program is continued to develop steady-state ion source of decaborane beam for ion implantation industry. Both Freeman and Bemas ion sources for decaborane ion beam generation were investigated. Decaborane negative ion beam as well as positive ion beam were generated and delivered to the output of mass separator. Experimental results obtained in ITEP are presented.
Date: August 26, 2007
Creator: Kulevoy, T. V.; Petrenko, S. V.; Kuibeda, R. P.; Seleznev, D. N.; Kozlov, A. V.; Stasevich, Yu. B. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Superconducting Photoinjector

Description: One of the frontiers in FEL science is that of high power. In order to reach power in the megawatt range, one requires a current of the order of one ampere with a reasonably good emittance. The superconducting laser-photocathode RF gun with a high quantum efficiency photocathode is the most natural candidate to provide this performance. The development of a 1/2 cell superconducting photoinjector designed to operate at up to a current of 0.5 amperes and beam energy of 2 MeV and its photocathode … more
Date: August 26, 2007
Creator: Ben-Zvi,I.; Burrill, A.; Calaga, R.; Chang, X.; Grover, R.; Gupta, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fel Potential of the High Current Erls at Bnl.

Description: An ampere class 20 MeV superconducting Energy Recovery Linac (ERL) is under construction at Brookhaven National Laboratory (BNL) for testing concepts for high-energy electron cooling and electron-ion colliders. This ERL prototype will be used as a test bed to study issues relevant for very high current ERLs. High average current and high performance of electron beam with some additional components make this ERL an excellent driver for high power far infrared Free Electron Laser (FEL). A possibi… more
Date: August 26, 2007
Creator: Kayran,D.; Ben-Zvi, Ilan; Litvinenko, V.; Pozdeyev, E.; Matveenko, A.; Shevchenko, O. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ion Sources for Energy Extremes of Ion Implantation.

Description: For the past four years a joint research and development effort designed to develop steady state, intense ion sources has been in progress with the ultimate goal to develop ion sources and techniques, which meet the two energy extreme range needs of mega-electron-volt and 100's of electron-volt ion implanters. This endeavor has already resulted in record steady state output currents of high charge state of Antimony and Phosphorous ions: P{sup 2+} (8.6 pmA), P{sup 3+} (1.9 pmA), and P{sup 4+} (0… more
Date: August 26, 2007
Creator: Herschcovitch, A.; Johnson, B. M.; Batalin, V. A.; Kropachev, G. N.; Kuibeda, R. P.; Kulevoy, T. V. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

[Staffers seated at Aerie Yearbook booth]

Description: Photograph of April Porter, Kelsey Campbell, Rachel Hildewig, and another staffer at the Aerie Yearbook booth during the Mean Green Fling. They are seated against the wall of Willis Library outside on the Library Mall and their booth has cups, past yearbooks, pens, and pencils on display.
Date: August 26, 2007
Creator: Baugh, Brian
Item Type: Refine your search to only Photograph
Location: 33.210282 -97.148658
Partner: UNT Libraries Special Collections

[Volunteer removing wax mold]

Description: Photograph of a volunteer removing the wax mold from a young child's hand. The child is holding a sucker in his other hand and the wax tub and other booths are in front of them.
Date: August 26, 2007
Creator: Evans, Rebecca
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Student on inflatable Velcro wall]

Description: Photograph of a student right after jumping onto a Velcro wall outside on the UNT campus. They are attached to it because they are wearing a Velcro suit over their clothes. Their legs are held up as well.
Date: August 26, 2007
Creator: Evans, Rebecca
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Parents with kids making wax hands]

Description: Photograph of students, volunteers, parents, and children at a station where they can make wax molds of their hands. There are a few different tub options for wax and another booth is set up behind them.
Date: August 26, 2007
Creator: Evans, Rebecca
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[People converse at Mean Green Fling booth]

Description: Photograph of people talking at a booth during the Mean Green Fling. One woman in the center of the photograph is looking at the woman in front of her, who has her back to the camera. They are both holding papers in their hands. The woman facing the camera seems to be talking. Behind her, a woman wearing a UNT branded shirt is standing, looking at the camera. A man is sitting down next to her, looking at the camera and smiling. He is wearing a shirt that says, "Alpha Phi Omega." Candy is scatte… more
Date: August 26, 2007
Creator: Ha, Khai
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Two women sit on fountain ledge at Mean Green Fling]

Description: Photograph of two women sitting on the ledge of a fountain at the Mean Green Fling. The woman on the left-hand side of the photograph is holding a bottle of water. A plate of food is sitting on the ledge in front of her. The other woman is sitting across from her, on the right side of the photograph. There is a plate sitting on her lap and a burger in her right hand. The women are looking at each other and appear to be talking. Other people can be seen in the background, sitting on the other si… more
Date: August 26, 2007
Creator: Ha, Khai
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
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