Ugrades of beam diagnostics in support of emittance-exchange experiments at the Fermilab A0 photoinjector

Journal Article · Sat Jan 01 04:00:00 EST 2011 · Submitted to Phys.Rev.ST Accel.Beams

DOI:https://doi.org/10.1103/PhysRevSTAB.14.060704· OSTI ID:1011160

Lumpkin, A H; Johnson, A S; Ruan, J; Santucci, J; Sun, Y -E; Thurman-Keup, R; Edwards, H

The possibility of using electron beam phase space manipulations to support a free-electron laser accelerator design optimization has motivated our research. An ongoing program demonstrating the exchange of transverse horizontal and longitudinal emittances at the Fermilab A0 photoinjector has benefited recently from the upgrade of several of the key diagnostics stations. Accurate measurements of these properties upstream and downstream of the exchanger beamline are needed. Improvements in the screen resolution term and reduced impact of the optical system's depth-of-focus by using YAG:Ce single crystals normal to the beam direction will be described. The requirement to measure small energy spreads (<10 keV) in the spectrometer and the exchange process which resulted in bunch lengths less than 500 fs led to other diagnostics performance adjustments and upgrades as well. A longitudinal to transverse exchange example is also reported.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: DOE Office of Science
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1011160
• Report Number(s): FERMILAB-PUB-11-013-AD
• Journal Information: Submitted to Phys.Rev.ST Accel.Beams, Journal Name: Submitted to Phys.Rev.ST Accel.Beams
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
Accelerators
DESIGN
ELECTRON BEAMS
FERMILAB
FREE ELECTRON LASERS
MONOCRYSTALS
OPTIMIZATION
PERFORMANCE
PHASE SPACE
RESOLUTION
SCREENS
SPECTROMETERS