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Browsing by Author "Korostynska, Olga"

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Browsing by Author "Korostynska, Olga"

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  • Arshak, Khalil; Buckley, Dennis; Korostynska, Olga (IEEE Computer Society, 2005)
    This paper demonstrates the feasibility of a portable gamma radiation monitoring system, based on the Anderson Current Loop circuit, where Nickel Oxide (NiO) thick films are used as radiation-sensing elements. A cost ...
  • Arshak, Khalil; Jafer, Essa; McGloughlin, Timothy M.; Corbett, Timothy J.; Chatzandroulis, Stavros; Goustouridis, Dimitrios; Tsoukalas, D.; Normand, P.; Korostynska, Olga (IEEE Computer Society, 2007)
    A prototype of miniaturized, low power, bi-directional wireless communication system was designed for in vivo pressure monitoring. The capacitive pressure sensors have been developed particularly for the medical field, ...
  • Arshak, Khalil; Korostynska, Olga (IEEE Computer Society, 2002)
    Thin films of Tellurium dioxide (TeO2) were investigated for γ-radiation dosimetry purposes. Samples were fabricated using thin film vapour deposition technique. Thin films of Te02 were exposed to a 60Co γ-radiation source ...
  • Arshak, Khalil; Korostynska, Olga; Szumilas, L.; Harris, John A.; Clifford, S.A. (IEEE Computer Society, 2004)
    In2O3 and SiO mixtures into thick film pn-junctions form were investigated for γ-radiation dosimetry purposes. Results show that the current is increased with the increase in radiation dose to a certain level, exceeding ...
  • Arshak, Khalil; Korostynska, Olga; Jafer, Essa; Arshak, Arousian; Morris, Deirdre; Gill, Edric I. (IEEE Computer Society, 2006)
    A novel cost-effective real-time gamma radiation monitoring system based on metal oxide thick films was designed and tested. The changes in capacitances of ZnO and SnO2 thick film capacitors with interdigitated ...
  • Arshak, Khalil; Morris, Deirdre; Arshak, Arousian; Korostynska, Olga; Kaneswaran, Kelly (IEEE Computer Society, 2002)
    This paper examines the sensitivity of polyvinylidene fluoride (PVDF) and polyvinyl butyral (PVB) capacitors to pressures ranging from 0 – 100 kPa. The capacitors were formed by screenprinting onto flexible substrates and ...
  • Arshak, Khalil; Gill, Edric I.; Arshak, Arousian; Korostynska, Olga (IEEE Computer Society, 2007)
    Due to the increasing demand for accurate, reliable and highly sensitive pH sensors, research is ongoing to find new materials and methods to achieve this goal. An approach that shows promise in the pH-sensing field is the ...
  • Arshak, Khalil; Korostynska, Olga; Henry, John (IEEE Computer Society, 2004)
    In this work, the use of mixed oxide materials, such as Manganese oxide (MnO) and Tellurium dioxide (Te02) in the form of thermally evaporated thin film structures, is explored for gamma radiation dosimetry application. ...
  • Arshak, Khalil; Gilmartin, Stephen L.; Arshak, Arousian; Collins, Damien; Korostynska, Olga (IEEE Computer Society, 2005)
    The 2-step negative resist image by dry etching (2-step NERIME) focused ion beam (FIB) top surface imaging (TSI) process has been previously reported as an excellent technique for patterning nanometer scale features ...
  • Arshak, Khalil; Korostynska, Olga; Arshak, Arousian; Morris, Deirdre (IEEE Computer Society, 2005)
    The electrical properties of screen-printed TiO2 based thick films were explored in terms of gamma radiation influence. Screen-printed pn-heterojunctions and resistors were exposed to γ- radiation from a 137Cs source ...
  • Arshak, Khalil; Arshak, Arousian; Morris, Deirdre; Korostynska, Olga; Jafer, Essa (IEEE Computer Society, 2005)
    The ability to monitor pressure remotely is of particular importance in medical and environmental applications as it is less labour intensive, safer and offers peace of mind to the general public. To meet this demand, a ...
  • Arshak, Khalil; Korostynska, Olga; Harris, John A. (IEEE Computer Society, 2002)
    Thick films of Nickel oxide (NiO) were investigated for γ-radiation dosimetry purposes. Samples were fabricated using the thick film screen printing technique. Absorption spectra for NiO films were recorded and the values ...

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