2 research outputs found
The FNAL injector upgrade
The present FNAL H- injector has been operational since the 1970s and
consists of two magnetron H- sources and two 750 keV Cockcroft-Walton
Accelerators. In the upgrade, both slit-type magnetron sources will be replaced
with circular aperture sources, and the Cockcroft-Waltons with a 200 MHz RFQ
(radio frequency quadrupole). Operational experience at BNL (Brookhaven
National Laboratory) has shown that the upgraded source and RFQ will be more
reliable, improve beam quality and require less manpower than the present
system.Comment: 3 pp. Particle Accelerator, 24th Conference (PAC'11) 2011. 28 Mar - 1
Apr 2011. New York, US
Secondary Electron Yield Measurements of Fermilab's Main Injector Vacuum Vessel
We discuss the progress made on a new installation in Fermilab's Main
Injector that will help investigate the electron cloud phenomenon by making
direct measurements of the secondary electron yield (SEY) of samples irradiated
in the accelerator. In the Project X upgrade the Main Injector will have its
beam intensity increased by a factor of three compared to current operations.
This may result in the beam being subject to instabilities from the electron
cloud. Measured SEY values can be used to further constrain simulations and aid
our extrapolation to Project X intensities. The SEY test-stand, developed in
conjunction with Cornell and SLAC, is capable of measuring the SEY from samples
using an incident electron beam when the samples are biased at different
voltages. We present the design and manufacture of the test-stand and the
results of initial laboratory tests on samples prior to installation.Comment: 3 pp. 3rd International Particle Accelerator Conference (IPAC 2012)
20-25 May 2012, New Orleans, Louisian