Transverse emittance and phase space program developed for use at the Fermilab A0 Photoinjector

Conference · Tue Mar 01 04:00:00 EST 2011

OSTI ID:1015382

Thurman-Keup, R; Johnson, A S; Lumpkin, A H; Ruan, J

The Fermilab A0 Photoinjector is a 16 MeV high intensity, high brightness electron linac developed for advanced accelerator R&D. One of the key parameters for the electron beam is the transverse beam emittance. Here we report on a newly developed MATLAB based GUI program used for transverse emittance measurements using the multi-slit technique. This program combines the image acquisition and post-processing tools for determining the transverse phase space parameters with uncertainties. An integral part of accelerator research is a measurement of the beam phase space. Measurements of the transverse phase space can be accomplished by a variety of methods including multiple screens separated by drift spaces, or by sampling phase space via pepper pots or slits. In any case, the measurement of the phase space parameters, in particular the emittance, can be drastically simplified and sped up by automating the measurement in an intuitive fashion utilizing a graphical interface. At the A0 Photoinjector (A0PI), the control system is DOOCS, which originated at DESY. In addition, there is a library for interfacing to MATLAB, a graphically capable numerical analysis package sold by The Mathworks. It is this graphical package which was chosen as the basis for a graphical phase space measurement system due to its combination of analysis and display capabilities.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: DOE Office of Science
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1015382
• Report Number(s): FERMILAB-CONF-11-137-AD
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
Accelerators
BEAM EMITTANCE
BRIGHTNESS
CONTROL SYSTEMS
ELECTRON BEAMS
ELECTRONS
FERMILAB
LINEAR ACCELERATORS
NUMERICAL ANALYSIS
PEPPERS
PHASE SPACE
SAMPLING
SCREENS