: LRL Accelerators The 184-Inch Synchrocyclotron by Lawrence Radiation Laboratory - Cyclotrons; Particle Accelerators Physics

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Dee system number of dees 1 size length 126 width 180 height 48 material: 1/64-in.-thick copper, stretched over a stainless steel frame dee aperture 4-3/16

Oscillator type: self-excited grounded-grid 10 tube: one Machlett ML5681 dc input, operating condition 10 dee bias, maximum dc 2000

Frequency-modulation system type: vibrating-reed capacitor number of units: two blades size width 45 length 32 thickness: tapered from 1.4 to 0.06 in. weight 500 vibrational frequency 64 electrical capacitance 300 to 6,500 peak-to-peak excursion 1 minimum separation of blade and stator 50

Ion source: conventional open-arc type

LeCouteur-type regenerator combined with magnetic channel

Room dimensions diameter 160 height 90

Crane type: radial capacity 30 overhead span 77

Concrete shielding: 15 ft thick on sides, 4 ft on top

Design started: January 1940. Construction started: August 1940. First operation for deuterons and alpha particles: November 1946. for protons: December 1948. Rebuilt: 1955-1957.

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