Measurement of Beam Losses at the Australian Synchrotron (original) (raw)

Abstract

The unprecedented requirements that new machines are setting on their diagnostic systems is leading to the devel-opment of new generation of devices with large dynamic range, sensitivity and time resolution. Beam loss detec-tion is particularly challenging due to the large extension of new facilities that need to be covered with localized detector. Candidates to mitigate this problem consist of systems in which the sensitive part of the radiation detec-tors can be extended over long distance of beam lines. In this document we study the feasibility of a BLM system based on optical f ber as an active detector for an electron storage ring. The Australian Synchrotron (AS) comprises a 216 m ring that stores electrons up to 3 GeV. The Ac-celerator has recently claimed the world record ultra low transverse emittance (below pm rad) and its surroundings are rich in synchrotron radiation. Therefore, the AS pro-vides beam conditions very similar to those expected in the CLIC/ILC damping rings....

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What are the calibration findings of the Optical Fiber Beam Loss Monitor system?add

The OBLM demonstrated sensitivity to beam losses down to 10,000 electrons and was validated for single-shot calibrations, revealing a nonlinear relationship with electron gun voltage.

How does the Australian Synchrotron facilitate future damping ring research?add

The AS exhibits similar parameters to CLIC DR and allows for adjustable conditions, enhancing experimental flexibility for future collider research.

What challenges were encountered during topup injection loss measurements?add

Significant losses of 0.028 mA were recorded, with a peak signal modulation observed at 100 µs, driven by synchrotron tune effects.

What role does Cherenkov light play in beam loss monitoring?add

Cherenkov light generated by charged particles crossing optical fibers offers precise location-based detection of beam loss, crucial for monitoring systems.

How does detector choice affect sensitivity in beam loss measurements?add

MPPCs showed sensitivity to lower charge levels compared to PMTs, indicating differences in linearity and response attributes based on detector characteristics.

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References (7)

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