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Title: ELECTRON CLOUD OBSERVATIONS AND CURES IN RHIC.

Abstract

Since 2081 MIC has experienced electron cloud effects, which have limited the beam intensity. These include dynamic pressure rises - including pressure instabilities, tune shifts: electrons, a reduction of the stability threshold for bunches crossing the transition energy, and possibly slow emittance growth. We summarize the main observations in operation and dedicated experiments, as well as countermeasures including baking, NEG coated warm beam pipes, solenoids, bunch patterns, anti-grazing rings, pre-pumped cold beam pipes, and scrubbing.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
910365
Report Number(s):
BNL-78049-2007-CP
R&D Project: 18026; KB0202011; TRN: US0704139
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: ECL2 WORKSHOP; CERN, SWITZERLAND; 20070301 through 20070302
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BROOKHAVEN RHIC; ELECTRONS; BEAM DYNAMICS; OPERATION

Citation Formats

FISCHER,W., BLASKIEWICZ, M., HUAN, H., HSEUH, H.C., PTITSYN, V., ROSER, T., THIEBERGER, P., TRBOJEVIC, D., WEI, J., ZHANG, S.Y., and IRISO, U. ELECTRON CLOUD OBSERVATIONS AND CURES IN RHIC.. United States: N. p., 2007. Web.
FISCHER,W., BLASKIEWICZ, M., HUAN, H., HSEUH, H.C., PTITSYN, V., ROSER, T., THIEBERGER, P., TRBOJEVIC, D., WEI, J., ZHANG, S.Y., & IRISO, U. ELECTRON CLOUD OBSERVATIONS AND CURES IN RHIC.. United States.
FISCHER,W., BLASKIEWICZ, M., HUAN, H., HSEUH, H.C., PTITSYN, V., ROSER, T., THIEBERGER, P., TRBOJEVIC, D., WEI, J., ZHANG, S.Y., and IRISO, U. Thu . "ELECTRON CLOUD OBSERVATIONS AND CURES IN RHIC.". United States. doi:. https://www.osti.gov/servlets/purl/910365.
@article{osti_910365,
title = {ELECTRON CLOUD OBSERVATIONS AND CURES IN RHIC.},
author = {FISCHER,W. and BLASKIEWICZ, M. and HUAN, H. and HSEUH, H.C. and PTITSYN, V. and ROSER, T. and THIEBERGER, P. and TRBOJEVIC, D. and WEI, J. and ZHANG, S.Y. and IRISO, U.},
abstractNote = {Since 2081 MIC has experienced electron cloud effects, which have limited the beam intensity. These include dynamic pressure rises - including pressure instabilities, tune shifts: electrons, a reduction of the stability threshold for bunches crossing the transition energy, and possibly slow emittance growth. We summarize the main observations in operation and dedicated experiments, as well as countermeasures including baking, NEG coated warm beam pipes, solenoids, bunch patterns, anti-grazing rings, pre-pumped cold beam pipes, and scrubbing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}

Conference:
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