Tunnel Dug at Stanford For Superconducting Linac

MAR 01, 1969

Physics Today

A tunnel 183 meters long and 4 meters in diameter has been dug for the 152‐meter superconducting niobium linear accelerator to be built underneath the Stanford High Energy Physics Laboratory (PHYSICS TODAY, Jan. 1966, page 96). The 15 000‐liter, 300‐watt superfluid helium refrigerator is being installed, and the first 6.1‐meter aluminum dewar sections have been delivered. William M. Fairbank and H. Alan Schwettman, heading the design team, hope to have the linac in operation by 1971.

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