antiproton

Paper	Title	Other Keywords	Page
TUXMA02	Record Luminosities at the Tevatron & Future Potentiality	collider, luminosity, proton, target	51
	S. J. Werkema Fermilab, Batavia, Illinois
	Fermilab Collider Run II has been in progress for nearly six years. During this tine the D0 and CDF experiments have each acquired total integrated luminosities of nearly 2.2 fb-1. Also during this time the peak instantaneous luminosities increased by more than a factor of 25 ' from 10 to as high as 270 ×1030 cm-2 s-1. An aggressive collider upgrade program continues to make significant progress in conjunction with luminosity production operations. This paper will give the status of Tevatron operations and expectations for the remainder of Run II.
	Slides
TUPMA094	Electron Cooling Rates in FNAL's Recycler Ring	electron, emittance, pick-up, instrumentation	238
	A. V. Shemyakin, L. R. Prost Fermilab, Batavia, Illinois
	A 0.1-0.5 A, 4.3 MeV DC electron beam provides cooling of 8 GeV antiprotons in Fermilab's Recycler storage ring. The paper presents cooling rate formulas derived in the framework of a simple non-magnetized model and compares them with measurements.
WEPMA010	8 GeV Beam Line Optics Optimization for the Rapid Antiproton Transfers at Fermilab	lattice, optics, proton, controls	345
	V. P. Nagaslaev, V. A. Lebedev, J. P. Morgan, D. Vander Meulen Fermilab, Batavia, Illinois
	Tevatron Run-II upgrade requires a significant increase of the efficiency and speed of the antiproton transfers from the Accumulator to the Recycler. This goal represents a great challenge as the time between stopping and initiating the stacking regime should change from 1 hour down to a few minutes. Here we discuss the beam line optics aspects of this project. Results of lattice measurements and optimization are analyzed in terms of transport efficiency and stability.
THPMA028	Regulation Scheme for Precision Magnet Power Supply	power-supply, feedback, controls, monitoring	669
	S. Bandyopadhyay, M. Das DAE/VECC, Calcutta
	Accelerators require extremely precise high-current magnet power supplies to drive their magneto-optic devices for proper beam dynamics. The dc precision of the power supply, which generally defines the absolute tolerance of its current, can be split up into three distinct parts — ripple, short-term and long-term stability. To ensure that the output current is within an error-band of 10ppm or less, a three-loop regulation topology has been developed and implemented in a high current magnet power supply (750A/12V) that uses transistor bank as the series pass element.