Phase Selection and Measurement in a Superconducting Cyclotron.
Abstract
Phase selection hardware has been installed in the K1200 superconducting cyclotron. These phase slits have successfully selected a beam pulse with a single peak of FWHM of 2.4^circ in RF phase, from an initial pulse of FWHM of 14.1^ circ in RF phase. This reduced pulse transmitted 20% of the unreduced internal beam current. An internal Si PIN diode detector has been developed to measure the beam time spectrum. This timing probe was installed and successfully tested in the K1200. A phase selection simulation was developed using the MSU/NSCL orbit integration codes MYAXIAL, INFLECTOR, and Z3CYCLONE. The simulation began in the axial injection line ~3 m below the K1200 median plane. Details of the phase selection which were measured with the internal timing probe were reproduced by the simulation. Aspects of injection and acceleration were explored and related to phase selection, with suggestions made for future improvements in the phase selection hardware.
- Publication:
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Ph.D. Thesis
- Pub Date:
- 1994
- Bibcode:
- 1994PhDT.......160B
- Keywords:
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- Physics: General; Physics: Nuclear; Physics: Optics