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in creator/contributor: "Naylor, C."  
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Analysis of kicker noise induced beam emittance growth

Description: Over the last few years, physicists have occasionally observed the presence of noise acting on the RHIC beams leading to emittance growth at high beam energies. While the noise was sporadic in the past, it became persistent during the Run-11 setup period. An investigation diagnosed the source as originating from the RHIC dump kicker system. Once identified the issue was quickly resolved. We report in this paper the investigation result, circuit analysis, measured and simulated waveforms, soluti… more
Date: May 20, 2012
Creator: Zhang, W.; Sandberg, J.; Ahrens, L.; Blacker, I. M.; Brennan, M.; Blaskiewicz, M. et al.
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Partner: UNT Libraries Government Documents Department
open access

Commissioning Results of Slow Extraction of Heavy Ions From the AGS Booster.

Description: Brookhaven's AGS Booster has been modified to deliver slow extracted beam to a new beam line, the NASA Space Radiation Laboratory (NSRL). This facility was constructed in collaboration with NASA for the purpose of performing radiation effect studies for the NASA space program. The design of the resonant extraction system has been described in [1]. A more detailed description, which includes predictions of the slow extracted beam time structure has been described in [2]. In this report we w… more
Date: May 12, 2003
Creator: Brown, K. A.; Bellavia, S.; Binello, S.; Brelsford, B.; Dumont, D.; Eng, W. et al.
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Partner: UNT Libraries Government Documents Department
open access

Medium energy heavy ion operations at RHIC

Description: As part of the search for a phase transition or critical point on the QCD phase diagram, an energy scan including 5 different energy settings was performed during the 2010 RHIC heavy ion run. While the top beam energy for heavy ions is at 100 GeV/n and the lowest achieved energy setpoint was significantly below RHICs injection energy of approximately 10 GeV/n, we also provided beams for data taking in a medium energy range above injection energy and below top beam energy. This paper reviews RHI… more
Date: March 28, 2011
Creator: Drees, K. A.; Ahrens, L.; Bai, M.; Beebe-Wang, J.; Blackler, I. M. C.; Blaskiewicz, M. et al.
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Partner: UNT Libraries Government Documents Department
open access

RHIC Performance for FY2011 Au+Au Heavy Ion Run

Description: Following the Fiscal Year (FY) 2010 (Run-10) Relativistic Heavy Ion Collider (RHIC) Au+Au run, RHIC experiment upgrades sought to improve detector capabilities. In turn, accelerator improvements were made to improve the luminosity available to the experiments for this run (Run-11). These improvements included: a redesign of the stochastic cooling systems for improved reliability; a relocation of 'common' RF cavities to alleviate intensity limits due to beam loading; and an improved usage of fee… more
Date: September 4, 2011
Creator: Marr, G.; Ahrens, L.; Bai, M.; Beebe-Wang, J.; Blackler, I.; Blaskiewicz, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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