Repository: UIHistories Project: Book - Century of Physics (1973) [PAGE 25]

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r e s e a r c h e s have been completed

a l m o s t e q u a l l y d i v i d e d b e t w e e n t h e 25 and 300 MeV

machines .*

In the late 1950's, the billion-volt accelerators at the national laboratories moved to the center of the high-energy stage. Several of the

ulty who were working with the large betatron, augmented by later additions :o the faculty, formed "user groups" who commuted to the Argonne National Laboratory in Argonne, Illinois and other laboratories to do experiments which are then analyzed and computed with facilities at Urbana, Goldwasser, This

attenberg and Sard had major responsibilities in these efforts.

kind of activity will be intensified as the 200 billion-volt accelerator under construction near Batavia, Illinois comes into use. Goldwasser has been involved

for years in the national planning that has led to the authorization of the giant accelerator. In July 1967, he accepted the position of Deputy Director

of its home, the National Accelerator Laboratory. An additional major program in nuclear physics is that of Professor rauenfelder, who first came to Illinois in 1952. His style has been to

maintain a flexibility that has enabled him to initiate research on new phenomena and problems quickly and productively. Examples are the Mossbauer

effect and a wide range of applications, experiments to test fundamental symmetry principles, and an experimental search for the hypothetical and elusive particle known as the quark.

^Research with the 300 MeV betatron was terminated in 1969. Use of the 25 MeV machine continues. Research is well along on the design and construction oi a superconducting linear accelerator w h u h can be used for low energy expe or as the accelerating element in a microtron design.