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Title: 4D Emittance Measurements Using Multiple Wire and Waist Scan Methods in the ATF Extraction Line

Abstract

Emittance measurements performed in the diagnostic section of the Accelerator Test Facility (ATF) extraction line since 1998 led to vertical emittances three times larger than the expected ones, with a strong dependence on intensity. An experimental program is pursued to investigate potential sources of emittance growth and find possible remedies. This requires efficient and reliable emittance measurement techniques. In the past, several phase-space reconstruction methods developed at SLAC and KEK have been used to estimate the vertical emittance, based on multiple location beam size measurements and dedicated quadrupole scans. These methods have been shown to be very sensitive to measurement errors and other fluctuations in the beam conditions. In this context new emittance measurements have been performed revisiting these methods and newly developed ones with a systematic approach to compare and characterise their performance in the ATF extraction line.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028695
Report Number(s):
SLAC-PUB-14676
TRN: US1105587
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Journal Name:
Conf.Proc.C0806233:tupc087,2008
Additional Journal Information:
Conference: EPAC'08, 11th European Particle Accelerator Conference, 23-27 June 2008, Genoa, Italy
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; ACCELERATOR FACILITIES; BEAMS; BEAM EMITTANCE; BEAM EXTRACTION; ERRORS; EXTRACTION; FLUCTUATIONS; GROWTH; MEETINGS; PERFORMANCE; PHASE SPACE; QUADRUPOLES; SIZE; TEST FACILITIES; WIRES; Accelerators,ACCPHY

Citation Formats

Rimbault, C, Bambade, P, Brossard, J, /Orsay, LAL, Alabau, M, /Valencia U., IFIC, Kuroda, S, /KEK, Tsukuba, Scarfe, A, /Manchester U., Woodley, M, and /SLAC. 4D Emittance Measurements Using Multiple Wire and Waist Scan Methods in the ATF Extraction Line. United States: N. p., 2011. Web.
Rimbault, C, Bambade, P, Brossard, J, /Orsay, LAL, Alabau, M, /Valencia U., IFIC, Kuroda, S, /KEK, Tsukuba, Scarfe, A, /Manchester U., Woodley, M, & /SLAC. 4D Emittance Measurements Using Multiple Wire and Waist Scan Methods in the ATF Extraction Line. United States.
Rimbault, C, Bambade, P, Brossard, J, /Orsay, LAL, Alabau, M, /Valencia U., IFIC, Kuroda, S, /KEK, Tsukuba, Scarfe, A, /Manchester U., Woodley, M, and /SLAC. 2011. "4D Emittance Measurements Using Multiple Wire and Waist Scan Methods in the ATF Extraction Line". United States. https://www.osti.gov/servlets/purl/1028695.
@article{osti_1028695,
title = {4D Emittance Measurements Using Multiple Wire and Waist Scan Methods in the ATF Extraction Line},
author = {Rimbault, C and Bambade, P and Brossard, J and /Orsay, LAL and Alabau, M and /Valencia U., IFIC and Kuroda, S and /KEK, Tsukuba and Scarfe, A and /Manchester U. and Woodley, M and /SLAC},
abstractNote = {Emittance measurements performed in the diagnostic section of the Accelerator Test Facility (ATF) extraction line since 1998 led to vertical emittances three times larger than the expected ones, with a strong dependence on intensity. An experimental program is pursued to investigate potential sources of emittance growth and find possible remedies. This requires efficient and reliable emittance measurement techniques. In the past, several phase-space reconstruction methods developed at SLAC and KEK have been used to estimate the vertical emittance, based on multiple location beam size measurements and dedicated quadrupole scans. These methods have been shown to be very sensitive to measurement errors and other fluctuations in the beam conditions. In this context new emittance measurements have been performed revisiting these methods and newly developed ones with a systematic approach to compare and characterise their performance in the ATF extraction line.},
doi = {},
url = {https://www.osti.gov/biblio/1028695}, journal = {Conf.Proc.C0806233:tupc087,2008},
number = ,
volume = ,
place = {United States},
year = {Wed Nov 02 00:00:00 EDT 2011},
month = {Wed Nov 02 00:00:00 EDT 2011}
}

Conference:
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