2024/10/24 by A. R. Rouzky, Rouzky, A., N. Eddy +3
Computer Science · Engineering · #VLSI and Analog Circuit Testing #Engineering and Test Systems #Integrated Circuits and Semiconductor Failure Analysis
paper · pdf · doi:10.48550/arxiv.2410.18951
The use of non-invasive sensors & systems to measure particle beam\ncharacteristics is a crucial part of modern accelerator control systems due to\ntheir ability to return real time passive measurements without impacting the\nbeam quality. Simulations, which can predict these sensors' behaviour and\nperformance under anticipated accelerator conditions, are valuable tools to\nensure confidence in the sensors' functionality prior to a physical bench test.\nThis paper details the design, testing, and results of two sensor models\ndeveloped using CST Studio Suite software. One model is an elliptical,\nlarge-aperture beam position monitor (BPM) for which vertical & horizontal\nposition signal linearity was analyzed. The second model is an AC current\ntransformer (ACCT) beam current monitor (BCM), which was used to search for\npotential fault cases within the BCM and beam pipe flange gaps. Fermilab Proton\nImprovement Plan II (PIP-II) accelerator beam conditions were applied, and\nspecial focus is given to the discovery of linearity variations within the BPM\nas well as the use of frequency domain techniques in the BCM fault case\nanalyses.\n