The Fast Current Transformer (FCT) - Bergoz Instrumentation - #1

Text version of the page

Beam wideband current transformer for pulsed or CW beams Higher sensitivity than a Wall Current Monitor: 5 V/A Rise time down to 200ps In-air FCT installation, over the vacuum chamber. Requires installation of a “gap” to prevent the wall current from flowing through the FCT aperture. The gap cab be a brazed ceramic ring or an organic material O-ring depending on the vacuum requirements. Typical installations include bellows, a wall current bypass and an electromagnetic shield covering the FCT completely. In-flange.FCT is mounted in the beam line. Short axial length, includes a ceramic gap vacuum-brazed on kovar. Does not require bellows, wall current bypass nor electromagnetic shield. UHV compatible. Technology Composite* magnetic cores of Cobalt-based amorphous and nanocrystalline alloys provide high permeability and very fast risetime. Alloys are thermally and magnetically processed inhouse, to obtain unequalled performance. Annealing techniques are the result of 20 years experience with cobalt-based alloy processing. Proprietary multithread winding techniques and numerically analysed modelling to assure uniform field density in magnetic core. * Amorphous / nanocrystalline composite cores are made from two or more alloy composition batches. Alloy batches are individually annealed to give each of them specific characteristics. High-temperature annealing is performed under fixed or rotating magnetic field. V.4.0 FCT Fast Current Transformer Most sensitive & fastest current transformer