Jq. Lu et Sw. Quan, BEAM PULSING SYSTEM FOR THE 4.5 MV ELECTROSTATIC ACCELERATOR, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 346(1-2), 1994, pp. 31-35
A single state 4.5 MV electrostatic accelerator was designed and const
ructed at Peking University, P.R. China. In order to measure the neutr
on energy with time of flight method, it is necessary to compress the
continuous ion beams into pulses. Therefore, a beam pulsing system has
been incorporated in this machine. This paper describes the 9 MHz rf
bunching system, the 1.5 MHz rf chopping system, the relevant electron
ics, the simulations of particle longitudinal motions, the requirement
s for the transverse focusing system and the experimental results. A d
uration of the beam pulse width (FWHM) of 1.8 ns was observed.