Berkeley in Alameda County, California — The American West (Pacific Coastal)
The Lawrence 37-Inch Cyclotron
Discoveries with this cyclotron were numerous, including radioisotopes, such as iodine-131, as well as the first man-made element, technetium. Modified, the magnet first showed in 1941-42 that uranium-235 could be separated magnetically on a large scale.
In 1945, it became the pioneer synchrocyclotron, confirming for the first time the theory of phase stability: the principle governing the operation of the great accelerators built since. This cyclotron stands as a major stepping-stone in the history of science.
May 20, 1968
Location. 37° 52.762′ N, 122° 14.758′ W. Marker is in Berkeley, California, in Alameda County. Marker is on Centennial Drive south of Grizzly Peak Boulevard, on the left when traveling south. Click for map. Marker is at
Other nearby markers. At least 8 other markers are within walking distance of this marker. Temple of Wings (approx. 0.6 miles away); Annie and Bernard Maybeck House (approx. 0.6 miles away); Jensen House (approx. 0.6 miles away); Daley’s Scenic Park Street Improvenents (approx. 0.6 miles away); Allenoke Manor (approx. 0.7 miles away); "Annie's Oak" (approx. 0.7 miles away); Gilman Hall (approx. ¾ mile away); Panoramic Hill (approx. ¾ mile away). Click for a list of all markers in Berkeley.
More about this marker. The marker is found on the grounds of the Lawrence Hall of Science.
Also see . . .
1. . Accelerators for Society explains cyclotrons, bevatrons, and synchrocyclotrons in a manner that is almost intelligible to the layperson. (Submitted on December 24, 2015.)
2. Cyclotron - Wikipedia. "A cyclotron is a type of particle accelerator invented by Ernest O. Lawrence in 1932 in which charged particles accelerate outwards from the center along a spiral path. The particles are held to a spiral trajectory by a static magnetic field and accelerated by a rapidly varying (radio frequency) electric field. Lawrence was awarded the 1939 Nobel prize in physics for this invention. Cyclotrons (Submitted on December 24, 2015.)
Additional keywords. physics chemistry
Categories. • Science & Medicine •
Credits. This page originally submitted on , by Andrew Ruppenstein of Sacramento, California. This page has been viewed 291 times since then and 16 times this year. Photos: 1, 2, 3. submitted on , by Andrew Ruppenstein of Sacramento, California. This page was last revised on June 16, 2016.