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Title: Wake measurements of a dechirper jaw with nonzero tilt angle

Journal Article · · Physical Review Accelerators and Beams
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The RadiaBeam/SLAC dechirper at the Linac Coherent Light Source (LCLS) is being used as a fast kicker, by inducing transverse wakefields, to, e.g., facilitate Fresh-slice, two-color laser operation. The dechirper jaws are independently adjustable at both ends, and it is difficult to avoid leaving residual (longitudinal) tilt in them during setup. Here in this report we develop a model independent method of removing unknown tilt in a jaw. In addition, for a short uniform bunch passing by a single dechirper plate, we derive an explicit analytical formula for the transverse wake kick as function of average plate offset and tilt angle. We perform wake kick measurements for the different dechirper jaws of the RadiaBeam/SLAC dechirper, and find that the agreement between measurement and theory is excellent.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-76SF00515; SC0009550
OSTI ID:
1439381
Alternate ID(s):
OSTI ID: 1458455
Journal Information:
Physical Review Accelerators and Beams, Journal Name: Physical Review Accelerators and Beams Vol. 21 Journal Issue: 5; ISSN 2469-9888
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (9)

Analytical formulas for short bunch wakes in a flat dechirper journal August 2016
Demonstration of Nonlinear-Energy-Spread Compensation in Relativistic Electron Bunches with Corrugated Structures journal March 2015
Time-resolved measurement of quadrupole wakefields in corrugated structures journal February 2016
Measurements of wake-induced electron beam deflection in a dechirper at the Linac Coherent Light Source journal October 2017
Experimental Demonstration of Longitudinal Beam Phase-Space Linearizer in a Free-Electron Laser Facility by Corrugated Structures journal December 2014
Fresh-slice multicolour X-ray free-electron lasers journal October 2016
Femtosecond x-ray pulse temporal characterization in free-electron lasers using a transverse deflector journal December 2011
First lasing and operation of an ångstrom-wavelength free-electron laser journal August 2010
Experimental Demonstration of Energy-Chirp Control in Relativistic Electron Bunches Using a Corrugated Pipe journal January 2014

Figures / Tables (12)

Figure 1(p. 2)figure Figure 1
Figure 2(p. 2)figure Figure 2
Table I(p. 2)table Table I
Figure 3(p. 3)figure Figure 3
Figure 4(p. 3)figure Figure 4
Figure 5(p. 4)figure Figure 5
Figure 6(p. 4)figure Figure 6
Figure 7(p. 5)figure Figure 7
Figure 8(p. 6)figure Figure 8
Table II(p. 6)table Table II
Figure 10(p. 7)figure Figure 10
Figure 9(p. 7)figure Figure 9

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43 PARTICLE ACCELERATORS