Ultra-fast MM-WAVE detectors for observation of microbunching instabilities in the Diamond storage ring

G. Rehm, A. F. Morgan, R. Bartolini, I. P. Martin, P. Karataev

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The operation of the Diamond storage ring with short electron bunches using low alpha optics for generation of Coherent THz radiation and short X-ray pulses for time-resolved experiments is limited by the onset of microbunching instabilities. We have installed two ultra-fast (time response is about 250 ps) Schottky Barrier Diode Detectors sensitive to radiation within the 3.33-5 mm and 6-9 mm wavelength ranges. Bursts of synchrotron radiation at these wavelengths have been observed to appear periodically above certain thresholds of stored current per bunch. The fast response allows a bunch-by-bunch and turn-by-turn detection of the burst signal, which facilitates study of the bursts structure and evolution. In this paper we present our first results for various settings of alpha and also discuss future plans.

Original language	English
Title of host publication	DIPAC 2009 - 9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators
Pages	369-371
Number of pages	3
Publication status	Published - 2009
Externally published	Yes
Event	9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, DIPAC 2009 - Basel, Switzerland Duration: 25 May 2009 → 27 May 2009

Conference

Conference	9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, DIPAC 2009
Country	Switzerland
City	Basel
Period	25.5.09 → 27.5.09

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ASJC Scopus subject areas

Instrumentation

Cite this

Rehm, G., Morgan, A. F., Bartolini, R., Martin, I. P., & Karataev, P. (2009). Ultra-fast MM-WAVE detectors for observation of microbunching instabilities in the Diamond storage ring. In DIPAC 2009 - 9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators (pp. 369-371)

Ultra-fast MM-WAVE detectors for observation of microbunching instabilities in the Diamond storage ring. / Rehm, G.; Morgan, A. F.; Bartolini, R.; Martin, I. P.; Karataev, P.

DIPAC 2009 - 9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators. 2009. p. 369-371.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Rehm, G, Morgan, AF, Bartolini, R, Martin, IP & Karataev, P 2009, Ultra-fast MM-WAVE detectors for observation of microbunching instabilities in the Diamond storage ring. in DIPAC 2009 - 9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators. pp. 369-371, 9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators, DIPAC 2009, Basel, Switzerland, 25.5.09.

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abstract = "The operation of the Diamond storage ring with short electron bunches using low alpha optics for generation of Coherent THz radiation and short X-ray pulses for time-resolved experiments is limited by the onset of microbunching instabilities. We have installed two ultra-fast (time response is about 250 ps) Schottky Barrier Diode Detectors sensitive to radiation within the 3.33-5 mm and 6-9 mm wavelength ranges. Bursts of synchrotron radiation at these wavelengths have been observed to appear periodically above certain thresholds of stored current per bunch. The fast response allows a bunch-by-bunch and turn-by-turn detection of the burst signal, which facilitates study of the bursts structure and evolution. In this paper we present our first results for various settings of alpha and also discuss future plans.",

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