Analog Signal Multiplexing System for the Iota Proton Injector

TL;DR

This paper details the design and implementation of a 32-to-4 analog signal multiplexing system for efficient, real-time monitoring of magnetic correctors in the IOTA Proton Injector at Fermilab.

Contribution

It introduces a novel multiplexing system that reduces cost and space for analog signal readout in particle accelerator control systems.

Findings

Successful real-time readout of all magnetic correctors

Reduced system cost and rack space

Enhanced control system efficiency

Abstract

The Fermilab Accelerator Science and Technology (FAST) Facility at FNAL is a dedicated research and development center focused on advancing particle accelerator technologies for future applications worldwide. Currently, a key objective of FAST Operations is to commission the 2.5 MeV IOTA Proton Injector (IPI) and enable proton injection into the Integrable Optics Test Accelerator (IOTA) storage ring. The low and medium-energy sections of the IPI include four frame-style dipole trims and two multi-function correctors with independently controlled coils, requiring readout of 32 analog channels for current and voltage monitoring in total. To reduce cost and optimize rack space within the PLC-based control system, a 32-to-4 analog signal multiplexing system was designed and implemented. This system enables real-time readback of excitation parameters from all magnetic correctors. This paper presents the design, construction, implementation, and performance of the multiplexing system.