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Title: ACCELERATOR TARGET POSITIONER AND CONTROL CIRCUIT THEREFOR

Abstract

An apparatus is described for inserting and retracting a target material with respect to the internal beam of a charged particle accelerator and to circuitry for controlling the timing and motion of the target placement. Two drive coils are mounted on the shaft of a target holder arm and disposed within the accelerator magnetic field with one coil at right angles to the other. Control circuitry alternately connects each coil to a current source and to a varying shorting resistance whereby the coils interchangeably produce driving and braking forces which swing the target arm within a ninety degree arc. The target is thus moved into the beam and away from it at high speeds and is brought to rest after each movement without whiplash or vibration.

Inventors:
; ; ;
Issue Date:
OSTI Identifier:
4099158
Patent Number(s):
2964710
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
NSA Number:
NSA-15-008191
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
United States
Language:
English
Subject:
PHYSICS; ACCELERATORS; BEAMS; CHARGED PARTICLES; COILS; CONTROL SYSTEMS; CURRENTS; MAGNETIC FIELDS; MOTION; PLANNING; RESISTORS; TARGETS; VIBRATIONS

Citation Formats

Stone, K F, Force, R J, Olson, W W, and Cagle, D S. ACCELERATOR TARGET POSITIONER AND CONTROL CIRCUIT THEREFOR. United States: N. p., 1959. Web.
Stone, K F, Force, R J, Olson, W W, & Cagle, D S. ACCELERATOR TARGET POSITIONER AND CONTROL CIRCUIT THEREFOR. United States.
Stone, K F, Force, R J, Olson, W W, and Cagle, D S. Tue . "ACCELERATOR TARGET POSITIONER AND CONTROL CIRCUIT THEREFOR". United States.
@article{osti_4099158,
title = {ACCELERATOR TARGET POSITIONER AND CONTROL CIRCUIT THEREFOR},
author = {Stone, K F and Force, R J and Olson, W W and Cagle, D S},
abstractNote = {An apparatus is described for inserting and retracting a target material with respect to the internal beam of a charged particle accelerator and to circuitry for controlling the timing and motion of the target placement. Two drive coils are mounted on the shaft of a target holder arm and disposed within the accelerator magnetic field with one coil at right angles to the other. Control circuitry alternately connects each coil to a current source and to a varying shorting resistance whereby the coils interchangeably produce driving and braking forces which swing the target arm within a ninety degree arc. The target is thus moved into the beam and away from it at high speeds and is brought to rest after each movement without whiplash or vibration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {12}
}