Design, development and use of the spectrometer for investigating coherent THz radiation produced by micro-bunching instabilities at Diamond Light Source

Aiveen Finn, Pavel Karataev, Gunther Rehm

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Schottky barrier diodes (SBDs) are known for their low noise, ultra-fast response and excellent sensitivity. They are often implemented as detectors in the millimetre wavelength regime. Micro-bunch instabilities (MBI) have been detected at many light sources around the world including the Diamond Light Source, UK. These MBI can result in bursts of coherent synchrotron radiation (CSR) with millimetre wavelengths. More research needs to be carried out with regards to the dynamics of MBI in order to confirm the simulations and to eventually harness the power of the CSR bursts. A single shot spectrometer has been designed and is under operation at the Diamond Light Source (DLS). It is composed of eight SBDs ranging from 33-1000 GHz. Unlike previous measurements carried out, each of the SBDs has been individually characterised thus making the results obtained comparable to simulations. In this paper, we present the assessment of each SBD in the spectrometer and the first results of the spectrometer's use in the beam.
Original languageEnglish
Title of host publicationJournal of Physics: Conference Series
EditorsPavel Karataev, Aleksandr Potylitsyn, Andrey Tyukhtin, Mikhail Strikhanov
Place of PublicationUK
PublisherIOP PUBLISHING LTD
Pages1-9
Number of pages9
Volume732
DOIs
Publication statusPublished - 1 Jul 2016

Publication series

NameRadiation from Relativistic Electrons in Periodic Structures
PublisherIOP Publishing
Volume732

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