bergoz instrumentation
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Measures current difference between two monitoring points with 0.05% resolution, e.g. measures 5% loss with 1% resolution
To keep machine activation low enough for hands-on maintenance, personnel safety and environmental protection
To protect machine parts from beam radiation damage
To achieve efficient beam transport
To measure beam loss along an accelerating structure, when no secondary particles can exit the vacuum chamber, the only option is to measure the beam current at regular intervals. Non-interceptive current transformers can be used for this purpose.
Wideband transformers cannot measure the beam current accurately because their response is dependant on the frequency spectrum, thus dependant on the bunch width.
Tuned-CT is a narrowband transformer tuned to the beam fundamental frequency. Its output is a near-sinewave independant of the bunch width. It is therefore a solution when beam loss must be measured in low-energy hadron accelerators, an area where, so far, no non-destructive diagnostics existed.
■ Stability < 5E-4
■ Thickness 40 mm
■ No noticeable temperature dependance
■ No dependance on external magnetic fields
■ Radiation resistant
■ Bakable
■ Vacuum down to 1E-10 mbar on option
The Tuned-CT was developed in collaboration with KAERI the Korean Atomic Energy Research Institute and PAL Pohang Accelerator Laboratory, to measure beam loss along the PEFP acceleration path.
PEFP Tuned-CTs (non-Conflat flanges)