Integrating current transformer
ICT
Bergoz Instrumentation
Integrates bunch down to femtoseconds
ICT integrates bunch charge without loss
For transfer lines, injection/extraction monitoring
For laser-plasma, wakefield accelerators
Single very short bunches, down to femtoseconds are integrated without loss. Microsecond long trains of very short micro bunches are integrated with negligible loss. High sensitivity for pC resolution pulse measurement.
Technology
ICT combines two nested transformers:
A shorted one-turn current transformer loads the bunch charge in a series of low-inductance capacitors distributed evenly around the transformer toroid. The full bunch charge is instantly loaded in those capacitors. A readout transformer transfers the charge loaded in the capacitor to its readout winding, at a slow pace determined by the RC time constant loading the winding. As a result of this very low frequency transfer, the eddy-current losses in the cores are negligible. Alloys used to assemble these cores are specially annealed to lower their coercive field and further minimize core loss.
In-flange.ICT are mounted directly in the beam line. UHV compatible. Available for many pipe diameters: 1", 1.5", 2.5", 4", 6" and 8" Also with elliptical aperture or other arbitrary shape aperture. Ceramic gap, shields and wall current bypass are included. Bellows are not required.
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