IBIC2026 - 15th International Beam Instrumentation Conference

Beam loss monitoring and protection for the upgraded cyclotron injection system at TRIUMF

MOP051

31 Aug 2026, 16:40

2h

Ballroom C (Whistler Conference Centre)

Poster Presentation MC02: Beam Loss Monitors and Machine Protection Monday Poster Session 1

Speaker

Suresh Saminathan (TRIUMF)

Description

The Ion Source and Injection System transports 300 kV negative hydrogen ions from the ion source to the cyclotron injection point. While the vertical section was upgraded in 2011, recent work focused on the horizontal section, featuring new optics, advanced beam diagnostics, µ-metal shielding, enhanced vacuum systems, updated power supplies, and modernized control infrastructure. A new ion source terminal is being integrated as part of these upgrades. Given the requirement to deliver 1 mA at 300 kV, beam loss monitoring (BLM) and machine protection interlocks are critical for reliable proton beam delivery. This paper presents the commissioning and operational performance of the BLM system, including diagnostic data for beam current, position, transverse profile, and localized beam loss.