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Improvements to Antiproton Accumulator to Recycler Transfers at the Fermilab Tevatron Collider

Description: Since 2005, the Recycler has become the sole storage ring for antiprotons used in the Tevatron Collider. The operational role of the Antiproton Source has shifted to exclusively producing antiprotons for periodic transfers to the Recycler. The process of transferring the antiprotons from the Accumulator to the Recycler has been greatly improved, leading to a dramatic reduction in the transfer time. The reduction in time has been accomplished with both an improvement in transfer efficiency and an increase in average stacking rate. This paper will describe the improvements that have streamlined the transfer process and other changes that contributed to a significant increase in the number of antiprotons available to the Collider.
Date: April 1, 2009
Creator: Morgan, J.P.; Drendel, B.; Vander Muelen, D. & /Fermilab
Partner: UNT Libraries Government Documents Department

Operating Procedure Changes to Improve Antiproton Production at the Fermilab Tevatron Collider

Description: Since the start of Fermilab Collider Run II in 2001, the maximum weekly antiproton accumulation rate has increased from 400 x 10{sup 10} Pbars/week to approximately 3,700 x 10{sup 10} Pbars/week. There are many factors contributing to this increase, one of which involves changes to operational procedures that have streamlined and automated Antiproton Source production. Automation has been added to the beam line orbit control, stochastic cooling power level management, and RF settings. In addition, daily tuning efforts have been streamlined by implementing sequencer driven tuning software.
Date: April 1, 2009
Creator: Drendel, B.; Morgan, J.P.; Vander Meulen, D. & /Fermilab
Partner: UNT Libraries Government Documents Department