A high-DC-voltage GaAs photoemission gun: Transverse emittance and momentum spread measurements
Conference
·
OSTI ID:489620
- Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); and others
We have built a high-DC-voltage photoemission gun and a diagnostic beamline permitting us to measure rms transverse emittance ({epsilon}{sub x}) and rms momentum spread ({delta}) of short-duration electron pulses produced by illuminating the cathode with light from a mode-locked, frequency-doubled Nd:YLF laser. The electron gun is a GaAs photocathode source designed to operate at 500kV. We have measured {epsilon}{sub x} and {delta} for conditions ranging from emittance-dominated to space-charge-dominated. We report these measurements as functions of microbunch charge for different beam radii, pulse lengths, and voltages/field gradients at the cathode, and compare them with PARMELA calculations.
- Research Organization:
- Southeastern Universities Research Association, Inc., Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 489620
- Report Number(s):
- DOE/ER/40150-1121; JLAB-ACC-97-16; CONF-970503-13; ON: DE97006532; TRN: 97:012591
- Resource Relation:
- Conference: 17. IEEE particle accelerator conference, Vancouver (Canada), 12-16 May 1997; Other Information: PBD: 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental results of a single emittance compensation solenoidal magnet
Experimental results from an injector for an IR FEL
The Next Generation Photoinjector
Conference
·
Tue Jul 01 00:00:00 EDT 1997
·
OSTI ID:489620
+2 more
Experimental results from an injector for an IR FEL
Conference
·
Mon Jun 01 00:00:00 EDT 1998
·
OSTI ID:489620
The Next Generation Photoinjector
Technical Report
·
Mon Sep 12 00:00:00 EDT 2005
·
OSTI ID:489620