Fast beam monitor diamond‐based devices for VUV and X‐ray synchrotron radiation applications

The improved performance of third‐generation light sources and the advent of next‐generation synchrotron radiation facilities require the use of extremely precise monitoring of the main photon‐beam parameters, such as position, absolute and relative intensity, and temporal structure. These parameter...

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Bibliographic Details
Published in:Journal of synchrotron radiation 2019-03, Vol.26 (2), p.386-392
Main Authors: Di Fraia, Michele, De Sio, Antonio, Antonelli, Matias, Nesti, Renzo, Panella, Dario, Menk, Ralf H., Cautero, Giuseppe, Coreno, Marcello, Catone, Daniele, Zema, Nicola, Callegari, Carlo, Pace, Emanuele
Format: Article
Language:English
Subjects:
beam monitor
Control stability
CVD diamond
Detectors
Diamonds
instrumentation
Light sources
Parameters
Photon beams
Response time
synchrotron
Synchrotron radiation
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Summary:The improved performance of third‐generation light sources and the advent of next‐generation synchrotron radiation facilities require the use of extremely precise monitoring of the main photon‐beam parameters, such as position, absolute and relative intensity, and temporal structure. These parameters, and associated real‐time feedbacks, are fundamental at the beamline control level and at the machine control level, to improve the stability of the photon beams and to provide bunch‐to‐bunch quantitative information. Fast response time, high radiation hardness and visible–blind response are main features of photon‐beam monitors for VUV and X‐ray synchrotron radiation beamlines; hence diamond‐based detectors are outstanding candidates. Here, results are presented of an extensive measurement campaign aiming at optimizing the capabilities of diamond detectors to discern time structures below the 100 ps timescale. A custom‐built device has been fabricated and tested at the Italian Synchrotron Radiation Laboratory Elettra in Trieste. The results obtained show that diamond is an excellent material for ultra‐fast photon pulses with picosecond time resolution; finally the possibilities for application at free‐electron laser sources are discussed. Results of an extensive measurement campaign aiming at exploiting the capabilities of a custom‐built diamond‐based device to monitor the time structures of VUV and X‐ray synchrotron radiation light with sub‐100 ps timescale are presented.
ISSN:1600-5775
0909-0495
1600-5775
DOI:10.1107/S1600577519000791