Development of a fast scintillator based beam phase measurement system for compact superconducting cyclotrons
- Variable Energy Cyclotron Centre, 1/AF Bidhannagar, Kolkata 700064 (India)
In an isochronous cyclotron, measurements of central phase of the ion beam with respect to rf and the phase width provide a way to tune the cyclotron for maximum energy gain per turn and efficient extraction. We report here the development of a phase measurement system and the measurements carried out at the Variable Energy Cyclotron Centre's (VECC's) K= 500 superconducting cyclotron. The technique comprises detecting prompt {gamma}-rays resulting from the interaction of cyclotron ion beam with an aluminium target mounted on a radial probe in coincidence with cyclotron rf. An assembly comprising a fast scintillator and a liquid light-guide inserted inside the cyclotron was used to detect the {gamma}-rays and to transfer the light signal outside the cyclotron where a matching photo-multiplier tube was used for light to electrical signal conversion. The typical beam intensity for this measurement was a few times 10{sup 11} pps.
- OSTI ID:
- 22118554
- Journal Information:
- Review of Scientific Instruments, Vol. 84, Issue 5; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
43 PARTICLE ACCELERATORS
ALUMINIUM
ELECTRON MULTIPLIERS
GAMMA DETECTION
INTERACTIONS
ION BEAMS
ISOCHRONOUS CYCLOTRONS
PHOTOMULTIPLIERS
PROBES
RF SYSTEMS
SCINTILLATION COUNTERS
SIGNALS
SUPERCONDUCTING CYCLOTRONS
SUPERCONDUCTING DEVICES
VARIABLE ENERGY CYCLOTRONS