Resolution limitations and optimization of the ITT F4157 streak tube focus for fast (10 ps) operation
The ITT F4157 image tube is biased at voltages far from the original design for operation in an ultrafast (10 ps) streak camera. Its output resolution at streak camera operating potentials has been measured as a function of input slit width, incident-light wavelength, and focus-grid voltage. The results are similar to those reported for the RCA C73435 streak tube. Indeed, the two tubes can be substituted for each other with minor mechanical modifications. The temporal resolution is insensitive to focus-grid voltage for a narrow (50 ..mu..m) input slit, but is very sensitive to focus-grid voltage for a wide (500 ..mu..m) input slit. Spatial resolution is nearly independent of focus-grid voltage for values that give good temporal resolution. Both temporal and spatial resolution depend on the incident-light wavelength. Streak camera operation is simulated with a computer program that calculates photoelectron trajectories. Electron ray tracing describes the observed effects of slit width, incident-light wavelength, and focus-grid voltage on the output resolution. 6 refs., 10 figs., 1 tab.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5824593
- Report Number(s):
- UCID-21258; ON: DE88003727
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
BEAMS
CAMERAS
COMPUTERIZED SIMULATION
ELECTRON BEAMS
FOCUSING
IMAGE TUBES
LEPTON BEAMS
MEASURING INSTRUMENTS
OPERATION
OPTIMIZATION
PARTICLE BEAMS
RADIATION DETECTORS
RESOLUTION
SIMULATION
SPATIAL RESOLUTION
STREAK CAMERAS
TIME RESOLUTION
TIMING PROPERTIES
TRAJECTORIES
47 OTHER INSTRUMENTATION
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
BEAMS
CAMERAS
COMPUTERIZED SIMULATION
ELECTRON BEAMS
FOCUSING
IMAGE TUBES
LEPTON BEAMS
MEASURING INSTRUMENTS
OPERATION
OPTIMIZATION
PARTICLE BEAMS
RADIATION DETECTORS
RESOLUTION
SIMULATION
SPATIAL RESOLUTION
STREAK CAMERAS
TIME RESOLUTION
TIMING PROPERTIES
TRAJECTORIES