Accession Number : AD0623659

Title :   A 200 SUPERCONDUCTING RACETRACK MICROTRON,

Corporate Author : STANFORD UNIV CALIF HIGH ENERGY PHYSICS LAB

Personal Author(s) : Wiik,B. H. ; Schwettman,H. A. ; Wilson,P. B.

Report Date : SEP 1965

Pagination or Media Count : 15

Abstract : A race-track microtron is proposed consisting of two 180 degree magnets spaced 2.5 meters apart with a superconducting linac section between. The magnets are two meters in diameter with a homogeneous field of 8 kilogauss. The linac section will operate at 1.2 kmc and provide an energy gain of 10 MeV per turn. The electrons are injected into the microtron at about 12 MeV from a second superconducting accelerator section. The spacing between orbits is 8 cm. Thus vertical and radial focusing can be provided on any orbit by quadrupoles placed in the field-free region between the magnets. The phase error due to the fringing fields of the magnets has been calculated and can be compensated. An energy resolution of 0.001 is expected. Using superconducting linac sections, a beam current of 100 microamps at unity duty cycle is feasible. It is also possible to build the microtron using conventional linac sections. For such a machine a duty cycle greater than one percent is reasonable. (Author)

Descriptors :   (*ELECTRON ACCELERATORS, SUPERCONDUCTIVITY), CYCLOTRONS, MAGNETS, FOCUSING, STABILITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE