Design and characterization of a tunable amplifier for 500 - 1000 kHz frequency range
Tässä työssä suunniteltiin, simuloitiin ja rakennettiin radiotaajuus (RF) -vahvistin toimimaan säädettävällä taajuusalueella. Vahvistimella saadaan tuotettua korkeajännitteisiä radiotaajuussignaaleja ionikimputtimelle, jolla parannetaan tutkimuksissa käytettävän ionisuihkun laatua. Työn tavoitteena oli rakentaa vahvistin, jolla saadaan tuotettua 400 Vpp jännitesignaali ionikimputtimen elektrodeille ja joka operoi 500 kHz - 1000 kHz taajuusalueella. Lopulta 600 kHz - 1000 kHz taajuusalue saatiin katettua halutulla 400 Vpp jännitteen amplitudilla. In this work, an RF amplifier was designed, simulated and constructed to operate in an adjustable frequency range. The amplifier produces high voltage radio frequency signals that radiofrequency quadrupole (RFQ) cooler-buncher uses for improving the quality of an ion beam. The goal of the thesis was to build an amplifier that can deliver an output voltage up to 400 Vpp to the cooler-buncher electrodes with a frequency range between 500 kHz and 1000 kHz. The frequency range of 600 kHz - 1000 kHz was finally covered with a wanted 400 Vpp output amplitude.
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