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:
- Research Org.:
- Originating Research Org. not identified
- 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}
}