RANDOM ERRORS AND MISALIGNMENTS IN THE A/G PROTON LINEAR ACCELERATOR

Technical Report · Fri Jul 01 04:00:00 EDT 1955

OSTI ID:4789893

King, N M

Expressions were derived for the effects of three types of random error in a root-mean-square linear accelerator. These are; misalignment of the zero- field (longitudinal) magnet axis; rotations of the transverse magnetic axes (twists); and errors in magnetic field magnitude. The first type was found to lead to wander'' of the entire proton beam around the design axis, while the other two result in radial expansion, or blow-up'' of the beam. The magnitude of these effects was estimated for different rootmean-square values of the errors. The results indicated that a 0.010-in. misalignment of the zero-field axes creates a maximum beam wander of 0.54 cm while a twist of 2 deg can cause a radial expansion of 0.04 cm. A 2.5% error in field magnitude led to a radial expansion of 0.17 cm. It is suggested that correcting lenses should be provided to overcome wander and re-center the beam. (auth)

• Research Organization: United Kingdom Atomic Energy Authority. Research Group. Atomic Energy Research Establishment, Harwell, Berks, England
• NSA Number: NSA-16-017156
• OSTI ID: 4789893
• Report Number(s): AERE-T/M-126
• Country of Publication: United Kingdom
• Language: English

Related Subjects

CONFIGURATION
DEFECTS
EQUATIONS
ERRORS
LENSES
LINEAR ACCELERATORS
MAGNETIC FIELDS
MAGNETS
MOTION
NUMERICALS
OPTICAL SYSTEMS
PHYSICS
PLANNING
PROTON BEAMS
ROTATION
STATISTICS