17–22 May 2026
C.I.D
Europe/Zurich timezone

ANALOG DOWN-CONVERSION AND DIGITAL READOUT SYSTEM FOR A CAVITY BPM BEAM TESTED AT ATF

SUP6028
17 May 2026, 14:00
4h
C.I.D

C.I.D

Student Poster Presentation MC6.T27: Instrumentation: Low Level RF Student poster session

Speaker

Juan Carlos Fernández Ortega (Instituto de Física Corpuscular)

Description

A complete analog readout system designed to extract reference and position signals from a single cavity Beam Position Monitor (cBPM) has been developed for a proto type from CEA Saclay. The complete system underwent beam testing at the Accelerator Test Facility (ATF). The monitor operates with a dipole mode centered at 1.725 GHz, requiring translation to lower frequencies for digitization and subsequent signal processing via a digital-down-conversion (DDC) algorithm. Throughout beam campaigns in May, June, and December 2025, various synchronized local oscil lator (LO) configurations and down-conversion architectures were evaluated. The final optimized systems achieved intermediate fre quencies (IF) of 417 MHz, 297 MHz, and 60 MHz. Through iterative enhancements in synchronization, filtering, and hardware integration, a peak vertical resolution of 2.81 µm was demonstrated.

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Authors

Juan Carlos Fernández Ortega (Instituto de Física Corpuscular) Laura Pedraza (Instituto de Física Corpuscular)

Co-authors

Daniel Esperante (Instituto de Física Corpuscular) Nuria Fuster-Martinez (Instituto de Física Corpuscular) Marçà Boronat (Instituto de Física Corpuscular) Cesar Blanch-Gutierrez (Instituto de Física Corpuscular) Daniel González-Iglesias (Instituto de Física Corpuscular) Benito Gimeno-Martinez (Instituto de Física Corpuscular) Eduardo Martínez López (Instituto de Física Corpuscular) Abraham Menéndez-Márquez (Instituto de Física Corpuscular) Nobuhiro Terunuma (High Energy Accelerator Research Organization) Toshiyuki Okugi (High Energy Accelerator Research Organization) Alexander Aryshev (High Energy Accelerator Research Organization) Prof. Konstantin Popov (High Energy Accelerator Research Organization) Javier Olivares Herrador (European Organization for Nuclear Research) Mr Raimundo García Olcina (Universitat de València) Claire Simon (Commissariat à l'Energie Atomique)

Presentation materials

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