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Title: ANALOG COMPUTER FOR QUADRUPOLE MAGNET DESIGN

Technical Report ·
OSTI ID:4730813

In the design of particle accelerators, magnets are sometimes used to bend the paths of charged particles in linear accelerators for focusing and defocusing purposes. These magnets, in the present case, are known as quadrupoles. Their design hinges on the solution of certain mathemntical expressions of particle trajectories. A computer of the analog type was constructed to solve the equations and so facilitate magnet design. The analog computer for this application has dials labeled L,'' mu ,'' and theta .'' The settings of these dials represent the design parameters under study. The operator can set the dials of each stage to any of thousands of different combinations of L, mu , and theta . The results of his settings may be observed on a CRO screen. He can then proceed to search for the best combination of control settings with regard to their effect on particle trajectories. Once having found a satisfactory combination, the corresponding magnet design parameters are obtained from the settings of the controls. Three features of construction requiring special consideration were: the high gain, minimum phase shift, and minimum crosstalk. These items and others are discussed from the practical as well as the theoretical point of view. (auth)

Research Organization:
Argonne National Lab., Ill.
DOE Contract Number:
W-31-109-ENG-38
NSA Number:
NSA-17-007346
OSTI ID:
4730813
Report Number(s):
TID-17429; UAC-6873
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English