A possible synchrotron light beam profile monitor in RHIC [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1998.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 3 pages : digital, PDF file
Additional Creators: Brookhaven National Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

This report examines the possibility of observing transverse beam profiles by using synchrotron light emission from the 100 GeV/nucleon heavy-ion gold beam in the Relativistic Heavy Ion Collider (RHIC). Synchrotron radiation experiences a shift towards higher photon energy when the magnetic field at the end of a dipole varies rapidly over a short distance. Synchrotron light signals from high energy (larger than 400 GeV) proton beams have already been routinely used to observe the transverse beam profiles at the SPS in CERN and at the TEVATRON at Fermilab. Because of the modest relativistic factor of the fully stripped stored gold ions in RHIC this push towards higher critical energy is not large enough to place the synchrotron light within the visible region of the spectrum. The critical wavelength remains within the infrared region. A 77 K cooled infrared array detector with 160 elements, made of PbSe (Lead Salt) could be used for beam profile detection. It would cover the wavelength range between 1 and 6 microns, with maximum sensitivity at a wavelength of 4.5 microns.

Report Numbers

E 1.99:bnl--65134
E 1.99: conf-980671--
conf-980671--
bnl--65134

Subject(s)

Particle Accelerators

Other Subject(s)

Note

Published through SciTech Connect.
08/01/1998.
"bnl--65134"
" conf-980671--"
"DE98007197"
"KB0202000"
EPAC 1998: 6. European particle accelerator conference, Stockholm (Sweden), 22-26 Jun 1998.
Hahn, A.; Courant, E.; Trbojevic, D.; Peggs, S.

Funding Information

AC02-98CH10886

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