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TUP02 |
Design of High Dynamic Range Preamplifiers for a Diamond-Based Radiation Monitor System |
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- M. Marich, S. Carrato
University of Trieste, Trieste, Italy
- L. Bosisio, A. Gabrielli, Y. Jin, L. Lanceri
INFN-Trieste, Trieste, Italy
- G. Brajnik, G. Cautero, D. Giuressi
Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
- L. Vitale
Università degli Studi di Trieste, Trieste, Italy
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Regardless of the different accelerator types (light sources like FELs or synchrotrons, high energy colliders), diagnostics is an essential element for both personnel and machine protection. With each update, accelerators become more complex and require an appropriate diagnostic system capable of satisfying multiple specifications, that become more stringent as complexity increases. This paper presents prototyping work towards a possible update of the readout electronics of a system based on single-crystal chemical vapor deposition (scCVD) diamond sensors, monitoring the radiation dose-rates in the interaction region of SuperKEKB, an asymmetric-energy electron-positron collider. The present readout units digitize the output signals from the radiation monitors, process them using an FPGA, and alert the accelerator control system if the radiation reaches excessive levels. The proposed updated version introduces a new design for the analog front end that overcomes its predecessor’s limits in dynamic range thanks to high-speed switches to introduce a variable gain in transimpedance preamplifiers, controlled by an ad-hoc developed FPGA firmware.
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Poster TUP02 [1.292 MB]
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DOI • |
reference for this paper
※ doi:10.18429/JACoW-IBIC2022-TUP02
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About • |
Received ※ 07 September 2022 — Revised ※ 09 September 2022 — Accepted ※ 12 September 2022 — Issue date ※ 16 October 2022 |
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