IBIC2022 - List of Authors (Carrato, S.)

Paper	Title	Page
MOP14	Design and Implementation of an FPGA-Based Digital Processor for BPM Applications	55
	M. Colja, S. Carrato University of Trieste, Trieste, Italy G. Brajnik, R. De Monte Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
	Digital processing systems have been proven to often outperform analog elaboration. Indeed, thanks to high-density DSPs and FPGAs, operations in digital domain give results that are impossible to achieve in other ways. On the other side, dealing with this great performance and flexibility is not always straightforward: the processing chain needs to be accurately planned to reach the desired goals, avoiding erratic behaviours in the digital domain. In this paper, we focus on the design and implementation of an FPGA-based digital processor that will be used in the electron beam position monitors of Elettra 2.0. After digitizing the 500 MHz beam signals from the pickups, the system executes a digital down conversion, followed by several filtering and demodulating stages, in order to have a selectable data rate that is suitable for both diagnostics and feedback. The position calculation is also performed in FPGA as well, with the well-known difference-over-sum algorithm. According to results provided by a fixed-point simulation, the overall system has been implemented in an Intel Arria 10 FPGA, demonstrating the correct design functionality that meets the specified requirements.
	Poster MOP14 [1.475 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2022-MOP14
About •	Received ※ 06 September 2022 — Revised ※ 09 September 2022 — Accepted ※ 11 September 2022 — Issue date ※ 09 October 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUP02	Design of High Dynamic Range Preamplifiers for a Diamond-Based Radiation Monitor System	216
	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
	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.
	Poster TUP02 [1.292 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2022-TUP02
About •	Received ※ 07 September 2022 — Revised ※ 09 September 2022 — Accepted ※ 12 September 2022 — Issue date ※ 16 October 2022
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Design and Implementation of an FPGA-Based Digital Processor for BPM Applications

55

M. Colja, S. Carrato
University of Trieste, Trieste, Italy
G. Brajnik, R. De Monte
Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy

Digital processing systems have been proven to often outperform analog elaboration. Indeed, thanks to high-density DSPs and FPGAs, operations in digital domain give results that are impossible to achieve in other ways. On the other side, dealing with this great performance and flexibility is not always straightforward: the processing chain needs to be accurately planned to reach the desired goals, avoiding erratic behaviours in the digital domain. In this paper, we focus on the design and implementation of an FPGA-based digital processor that will be used in the electron beam position monitors of Elettra 2.0. After digitizing the 500 MHz beam signals from the pickups, the system executes a digital down conversion, followed by several filtering and demodulating stages, in order to have a selectable data rate that is suitable for both diagnostics and feedback. The position calculation is also performed in FPGA as well, with the well-known difference-over-sum algorithm. According to results provided by a fixed-point simulation, the overall system has been implemented in an Intel Arria 10 FPGA, demonstrating the correct design functionality that meets the specified requirements.

Poster MOP14 [1.475 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2022-MOP14

About •

Received ※ 06 September 2022 — Revised ※ 09 September 2022 — Accepted ※ 11 September 2022 — Issue date ※ 09 October 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUP02

Design of High Dynamic Range Preamplifiers for a Diamond-Based Radiation Monitor System

216

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

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.

Poster TUP02 [1.292 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2022-TUP02

About •

Received ※ 07 September 2022 — Revised ※ 09 September 2022 — Accepted ※ 12 September 2022 — Issue date ※ 16 October 2022

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)