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Title: Utilization of optical image data from the Advanced Test Accelerator (ATA)

Extensive use is made of optical diagnostics to obtain information on the 50-MeV, 10-kA, 70-ns pulsed-electron beam produced by the Advanced Test Accelerator (ATA). Light is generated by the beam striking a foil inserted in the beamline or through excitation of the gas when the beamline is filled with air. The emitted light is collected and digitized. Two-dimensional images are recorded by either a gated framing camera or a streak camera. Extraction of relevant beam parameters, such as current density, current, and beam size, requires an understanding of the physics of the light-generation mechanism and an ability to handle and properly exploit a large digital database of image data. We will present a brief overview of the present understanding of the light-generation mechanisms in foil and gas, with emphasis on experimental observations and trends. We will review our data management and analysis techniques and indicate successful approaches for extracting beam parameters.
Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
6506074
Report Number(s):
UCRL-95366; CONF-870584-3
ON: DE87009573
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: SPIE technical symposium on optics and optoelectronics, Orlando, FL, USA, 15 May 1987; Other Information: Portions of this document are illegible in microfiche products
Research Org:
Lawrence Livermore National Lab., CA (USA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ELECTRON BEAMS; IMAGE PROCESSING; CALIBRATION; DATA ACQUISITION; DATA ANALYSIS; RECORDING SYSTEMS; STREAK CAMERAS; BEAMS; CAMERAS; LEPTON BEAMS; MEASURING INSTRUMENTS; PARTICLE BEAMS; PROCESSING; RADIATION DETECTORS 430200* -- Particle Accelerators-- Beam Dynamics, Field Calculations, & Ion Optics