Kovalchuk S. Metal micro detectors of ionizing radiation fluxes

The thesis is devoted to experimental measurements of ionizing radiation fluxes by metal micro-detectors. The development and creation of the world's first detector modules based on ultra-thin micro-strip metal sensors of various configurations manufactured by the Institute for Nuclear Research of the National Academy of Sciences of Ukraine by the original technology of plasma-chemical etching were completed. The technical devices and the necessary software are created on the basis of commercial readout systems for multichannel metal detectors. Direct experiments have proved the possibility of using metal detectors for mass-spectrometry purposes, measurement of the beam profile of charged particles and synchrotron radiation as well as for fractionated radiation therapy purposes. Measured effective conversion coefficient (the ratio of the number of incident photons to cut electrons) in the air is 2.02 photons per 1 electron, in a vacuum - 1.5 x 104 photons per 1 electron. The measured value of the inter-strip interference does not exceed 0.2% of the signal.