AIR-CORE STRONG FOCUSING SYNCHROTRON

Technical Report · Fri Aug 21 04:00:00 EDT 1959

OSTI ID:4226020

Christofilos, N C

An air-core strong focusing synchrotron is described. Low-temperature magnets 80 deg K or lower are proposed. High magnetic field value and high acceleration rate are characteristic advantages of the air-core magnets. The machine becomes smaller while the required radiofrequency power is considerably increased. Present accelerators can be classified in either of two extremes: closed orbit accelerators where one can hardly see the accelerating element and the main component is the guiding magnet and the acceleration time is of the order of a second; linear accelerators where the particles travel once through the machine and, due to this fact, tremendous amounts of rf power are required. The proposed machine is a compromise between these extremes; hence, the cost of the magnet and accelerating equipment is well balanced; the acceleration is of the order of a few tens of milliseconds. Molecular beam injection is proposed, allowing multi-turn injection; thus trapping of 6 x 10/sup 12/ particles per pulse is possible. By employing high magnetic fields it is possible to reduce the aperture; hence, the final beam crosssectional area becomes very small, allowing synchroclash operation of two machines without the necessity of storage, with satisfactory reaction yield. The magnet units are combined with the radiofrequency cavities. This arrangernent eliminates long straight sections except at the injection and targets. Parameters of a 24Bev machine of this type are cited. A method of avoiding blow-up of the beam at the phase transition is described. By properly changing the amplitude of the rf voltage near the phase transition energy, it is possible to obtain solutions of constant amplitude for both the momentum and phase oscillations. (auth)

• Research Organization: California. Univ., Livermore. Lawrence Radiation Lab.
• DOE Contract Number: W-7405-ENG-48
• NSA Number: NSA-13-020298
• OSTI ID: 4226020
• Report Number(s): UCRL-5848
• Country of Publication: United States
• Language: English

Related Subjects

AGS
AIR
BEAMS
CAVITY RESONATORS
CIRCUITS
CONFIGURATION
ECONOMICS
ELECTRIC POTENTIAL
ENERGY
ENERGY RANGE
GUIDANCE
INJECTION
LINEAR ACCELERATORS
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETS
MICROWAVES
MOLECULES
MOMENTUM
NUMERICALS
OPERATION
OPTICAL SYSTEMS
ORBITS
OSCILLATIONS
PARTICLE ACCELERATORS AND HIGH-VOLTAGE MACHINES
PLANNING
POWER
PULSES
RADIO WAVES
RESONANCE
SYNCHROTRONS
TARGETS