A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Louie, W.

Paper Title Page
MOPAS090 Overview of the AGS Cold Snake Power Supplies and the new RHIC Sextupole Power Supplies 637
 
  • D. Bruno, G. Ganetis, W. Louie, J. Sandberg
    BNL, Upton, Long Island, New York
  
  Funding: Work performed under Contract No. DE-AC02-98CH10886 with the U. S. Department of Energy.

The two rings in the Relativistic Heavy Ion Collider (RHIC) were originally constructed with 24 sextupole power supplies, 12 for each ring. Before the start of Run 7, 24 new sextupole power supplies were installed, 12 for each ring. Individual sextupole power supplies are now each connected to six sextupole magnets. A superconducting snake magnet and power supplies were installed in the Alternating Gradient Synchrotron (AGS) and commissioned during RHIC Run 5, and used operationally in RHIC Run 6. The power supply technology, connections, control systems and interfacing with the Quench Protection system for both these systems will be presented.

 
MOPAS091 RHIC Power Supplies-Failure Statistics for Runs 4, 5 and 6 640
 
  • D. Bruno, G. Ganetis, G. Heppner, W. Louie, J. Sandberg, C. Schultheiss
    BNL, Upton, Long Island, New York
  
  Funding: Work performed under Contract No. DE-AC02-98CH10886 with the U. S. Department of Energy.

The two rings in the Relativistic Heavy Ion Collider (RHIC) require a total of 933 power supplies to supply current to highly inductive superconducting magnets. Failure statistics for the RHIC power supplies will be presented for the last three RHIC runs. The failures of the power supplies will be analyzed. The statistics associated with the power supply failures will be presented. Comparisons of the failure statistics for the last three RHIC runs will be shown. Improvements that have increased power supply availability will be discussed. Further improvements to increase the availability of the power supplies will also be discussed.