Status of the Fermilab Main Injector

Abstract

The Fermilab Main Injector is a rapid cycling proton synchrotron. It is designed to accelerate protons and antiprotons to 150GeV. The initial commissioning phase was in the summer of 1999. Since then, Main Injector has been supporting the high energy physics program at Fermilab. Beam studies for continued improvements in machine performance are in progress, in order to support a luminosity of 8*10 31 cm -2 sec -1 during Run IIa. The status of the Main Injector and beam studies results are presented.

Online track processor for the CDF upgrade

“…This represents a factor of 20 increase in data sample size from the 0.109 fb accumulated by CDF during Run I. The instantaneous luminosity increase is a factor of 10 over the maximum experienced during Run I and is made possible by both the new Main Injector as well as the anti-proton recycler [1], [2]. To keep the number of overlapping interactions per crossing at a manageable level, the Tevatron will increase the number of proton and antiproton bunches in the machine to 108 (from 6 used in Run I), while decreasing the time between bunches to 132 ns (from 3.5 s used in Run I).…”

Beam loading compensation requirement for multibatch coalescing in Fermilab Main Injector

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AbstractFermilab collider Run IIa requires 36 proton bunches with intensities 270E9ppb and 36 antiproton bunches with intensities 40-70E9ppb [1]. Currently the proton bunches are produced by coalescing 5-7 53MHz bunches into one 53MHz bunch and repeating this process a total of 36 times.

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