What question did this study set out to answer?

The study aims to develop a verification method for the signal path in the BBC subsystem prototype.

April 4, 2026

The Method for Estimating the Performance of the Optical and Electronic Path of the BBC Subsystem in the SPD Detector

ATA. V. TishevskyJoint Institute for Nuclear Research IVI. S. VolkovJoint Institute for Nuclear Research FDF. A. DubininNational Research Nuclear University MEPhI

Key Points

The study aims to develop a verification method for the signal path in the BBC subsystem prototype.
Designed and tested an eight-channel sector prototype of the Beam-Beam Counter subsystem.
Focused on using side-glow fiber (SGF) for illumination to verify the signal path.
Discussed the implementation prospects within the BBC subsystem.
Initial results from using SGF illumination indicate effectiveness in verifying the signal path.
Prospects for broader applications of this verification method within the BBC subsystem are outlined.

Abstract

A previous series of studies was aimed at selecting the optimal materials for a highly granular prototype of the Beam-Beam Counter subsystem, which is part of the SPD detector at the NICA collider 1– 3. This formed the basis for designing and testing an eight-channel sector prototype. Developing verification tools for this prototype is a priority task. This paper presents a method for verifying the main part of the signal path using side-glow fiber (SGF) illumination. First results have been obtained, and prospects for applying this method within the BBC subsystem are discussed.

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