First Successful Cyclotron

"First successful cyclotron built by Lawrence and his graduate student M. Stanley Livingston, accelerated a few hydrogen molecule ions to an energy of 80,000 electron volts. Since each ion received an accelerating kick twice in a circuit as it entered and left the single flat semicircular electrode or 'dee', those that managed to reach full energy and fall into the collecting cup 4.50 cm from the center of the instrument had made no fewer than forty turns. The result, reported at the January 1931 APS meeting, earned Livingston his Ph.D. and Lawrence $500 from the National Research Council towards the construction of a machine that might be useful for nuclear physics."

(The preceding information was excerpted from the text of the Fall 1981 issue of LBL Newsmagazine.)
LBL NEWS Magazine, Vol. 6, No. 3, Fall 1981, p. 11 | The first successful cyclotron.

Published on the web at the Lawrence Berkely National Lab website.
LBNL Image Library -- Collection BERKELEY-LAB/ACCELERATORS/EARLY-CYCLOTRONS ,Image File:96602522

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