Actions for Reconstruction of longitudinal beam profiles from nondestructive electromagnetic probes

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Reconstruction of longitudinal beam profiles from nondestructive electromagnetic probes

Author
Gilpatrick, J. D.
Published
United States : [publisher not identified], 1985
Springfield, Va.: National Technical Information Service, [approximately 1985]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Watson, C. A.

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Summary
The Fusion Materials Irradiation Test (FMIT) 2-MeV accelerator has nondestructive diagnostic probes that sense changes in the electromagnetic fields of the bunched beam. These probes accurately perform their primary functions, but do not have well-behaved, frequency-domain characteristics from which the longitudinal beam profile can be measured using convolution-integral processing techniques. Therefore, each of the probes' transfer function was determined using a tightly bunched electron beam as a source for impulse response tests. Using the Signal Processing Analyzer (SPA) code, output signals from these probes mounted on the FMIT beamline were deconvolved with sampled impulse response data to produce a longitudinal electromagentic field distribution of a beam bunch. With SPA's signal-processing techniques, any electromagnetic probe shorter than ..beta..lambda and having significant signal-to-noise ratios can reconstruct longitudinal profiles, provided the probe's transfer function is known. 5 refs., 2 figs.
Report Numbers
DE85012675; LA-UR-85-1598; CONF-850504-101
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: W-7405-ENG-36
OSTI Identifier 5614230
Research organization: Los Alamos National Lab., NM (USA).
View MARC record | catkey: 47353797