PAC2013 - List of Authors (Prokop, C.R.)

Paper	Title	Page
TUPAC21	Performance Comparisons of Emittance-exchanger Beamlines	496
	C.R. Prokop, P. Piot Northern Illinois University, DeKalb, Illinois, USA B.E. Carlsten LANL, Los Alamos, New Mexico, USA M.D. Church, P. Piot Fermilab, Batavia, USA
	Funding: Work supported by LDRD project #20110067DR and by the U.S. DoE Contract No. DE-FG02-08ER41532 with NIU and No. DE-AC02-07CH11359 with Fermilab. Earlier experiments at Fermilab’s A0 Photoinjector Laboratory demonstrated successful transverse-to-longitudinal emittance exchange (EEX) using a transverse-deflecting cavity (TDC) located between two identical doglegs. Such a design has the disadvantage of transversely displacing the beam. An alternative is an EEX beamline designed out of a variable R₅₆ bunch compressor chicane. In this paper, we present designs and simulation comparisons for several emittance-exchanger beamlines, including the double-dogleg and chicane designs, as well as variations of the chicane design that allow for increasing its dispersion which proportionally decreases the field-strength requirements on the TDC. These comparisons are performed with PIC models of space charge and coherent synchrotron radiation.

TUPSM25	Multiphoton Emission from Cesium Telluride Photocathodes	688
	H. Panuganti, P. Piot, C.R. Prokop Northern Illinois University, DeKalb, Illinois, USA P. Piot Fermilab, Batavia, USA
	The High-Brightness Electron Source Lab (HBESL) operates an L-band RF gun (1.3-GHz) that incorporates a Cesium Telluride photocathode illuminated by ultra-short (sub-100-fs) laser pulses. In this contribution we report recent studies on (1) characterizing the longitudinal phase of the photoemitted bunch in the blow-out regime using a single-shot diagnostics, (2) exploring the electron beam emission using 800 nm laser pulses (instead of the 266 nm nominal wavelength).

Paper

Title

Page

Performance Comparisons of Emittance-exchanger Beamlines

496

C.R. Prokop, P. Piot
Northern Illinois University, DeKalb, Illinois, USA
B.E. Carlsten
LANL, Los Alamos, New Mexico, USA
M.D. Church, P. Piot
Fermilab, Batavia, USA

Funding: Work supported by LDRD project #20110067DR and by the U.S. DoE Contract No. DE-FG02-08ER41532 with NIU and No. DE-AC02-07CH11359 with Fermilab.
Earlier experiments at Fermilab’s A0 Photoinjector Laboratory demonstrated successful transverse-to-longitudinal emittance exchange (EEX) using a transverse-deflecting cavity (TDC) located between two identical doglegs. Such a design has the disadvantage of transversely displacing the beam. An alternative is an EEX beamline designed out of a variable R₅₆ bunch compressor chicane. In this paper, we present designs and simulation comparisons for several emittance-exchanger beamlines, including the double-dogleg and chicane designs, as well as variations of the chicane design that allow for increasing its dispersion which proportionally decreases the field-strength requirements on the TDC. These comparisons are performed with PIC models of space charge and coherent synchrotron radiation.

TUPSM25

Multiphoton Emission from Cesium Telluride Photocathodes

688

H. Panuganti, P. Piot, C.R. Prokop
Northern Illinois University, DeKalb, Illinois, USA
P. Piot
Fermilab, Batavia, USA

The High-Brightness Electron Source Lab (HBESL) operates an L-band RF gun (1.3-GHz) that incorporates a Cesium Telluride photocathode illuminated by ultra-short (sub-100-fs) laser pulses. In this contribution we report recent studies on (1) characterizing the longitudinal phase of the photoemitted bunch in the blow-out regime using a single-shot diagnostics, (2) exploring the electron beam emission using 800 nm laser pulses (instead of the 266 nm nominal wavelength).