Advanced, time-resolved imaging techniques for electron-beam characterizations

Conference · Mon Jan 01 04:00:00 EST 1990

DOI:https://doi.org/10.1063/1.40746· OSTI ID:5992350

Lumpkin, A H

Several unique time-resolved imaging techniques have been developed to address radio frequency (RF)-linac generated electron beams and the free-electron lasers (FEL) driven by such systems. The time structures of these beams involve a series of micropulses with 10 to 15-ps duration, separated by tens of nanoseconds. Mechanisms to convert the e-beam information to optical radiation include optical transition radiation (OTR), Cherenkov radiation, spontaneous emission radiation (SER), and the FEL mechanism itself. The use of gated, intensified television cameras and synchroscan and dual-sweep streak cameras to time-resolve these signals has greatly enhanced the power of these techniques. A brief review of the less familiar conversion mechanisms and electro-optic techniques is followed by a series of specific experimental examples from the RF linac FEL facilities at Los Alamos and Boeing (Seattle, WA). 23 refs., 35 figs., 3 tabs.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: DOD
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5992350
• Report Number(s): LA-UR-91-532; CONF-9010267--3; ON: DE91008587
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430200 -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
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ACCELERATORS
BEAMS
BREMSSTRAHLUNG
CAMERAS
CHERENKOV RADIATION
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
FREE ELECTRON LASERS
IMAGE PROCESSING
LASERS
LEPTON BEAMS
LINEAR ACCELERATORS
MEASURING INSTRUMENTS
PARTICLE BEAMS
PROCESSING
RADIATION DETECTORS
RADIATIONS
RESOLUTION
RF SYSTEMS
STREAK CAMERAS
SYNCHROTRON RADIATION
TIME RESOLUTION
TIMING PROPERTIES