Speaker
Description
The Beam Permit System (BPS) has been implemented as a software-level permit and verification layer for the Rare isotope Accelerator complex for ON-line experiments (RAON), a heavy-ion accelerator being commissioned at the Institute for Basic Science (IBS) in Korea. While the Machine Protection System (MPS) provides fast hardware signal-based protection against beam-induced equipment damage, the BPS complements it by checking software-level conditions such as EPICS Input/Output Controller (IOC) availability, Process Variable (PV) consistency, and operating-mode correctness. By combining IOC monitoring, configuration checks, and mode-aware permit logic, the BPS ensures that beam delivery is allowed only when all required operating conditions are satisfied. Commissioning tests in the currently operational RAON section (up to SCL3) show that the BPS identifies hardware or software inconsistencies and inhibits beam extraction when necessary, ensuring that beam delivery occurs only under verified and safe operating conditions. This paper presents the design and implementation of the RAON BPS and summarizes the first commissioning results of this combined hardware–software protection approach.
Funding Agency
IBS-I001-D1
Footnotes
∗ Corresponding author: eunsang.kwon@ibs.re.kr
† These authors contributed equally to this work.
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