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    Wyświetlanie 1-3 z 3
    Tytuł:
    Wireless system for radiometric measurements
    Autorzy:
    Jakowiuk, A.
    Pieńkos, P. J.
    Kowalska, E.
    Filipiak, P.
    Świstowski, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/146860.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    radiometric probes
    radon concentration measurements
    wireless communication
    Opis:
    Wireless system for radiometric measurements contains probes, for gamma radiation measurements and other probes for radon concentration measurements in air and water. The probes have the form of droplet-tight cylinders powered from a local battery. Measuring data collecting unit, based on a portable computer, communicates directly with the probes in a wireless manner using the WiFi communication network, or through the internet using mobile phone GSM network. Serial port wire connection is also possible. The local battery ensures at least 14 days of continuous operation of the probes. For long term measurements, the probes can also be powered from solar panels. Construction and operation of the probes are described. Results of scintillation probes investigation are given. Detection efficiency of the developed probes is comparable with the laboratory probes offered in our country.
    Źródło:
    Nukleonika; 2012, 57, 4; 637-641
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Laboratory automatic measuring system for gamma specimens
    Autorzy:
    Jakowiuk, A.
    Filipiak, P.
    Bartak, J.
    Pieńkos, P.
    Kowalska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/146868.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    gamma counter
    radioimmunoassay (RIA)
    immunoradiometric assay (IRMA)
    Opis:
    LG Gamma Counter is designed for low activity measurement of the radioactive isotope iodine 125I in liquid or solid samples during radioimmunoassay (RIA) and immunoradiometric assay (IRMA) in small or medium size clinic laboratories. Apart from RIA and IRMA programmed procedures, a measurement of small activity gamma samples is possible. The well scintillator NaI(Tl) is used as radiation detector for the isotope 125 I in the measuring channel, the well dimensions fi being 17 x 38 mm. Gamma Counter was adapted for measuring radioactivity of single samples. The counter is equipped with an automatic system allowing transportation of examined samples to a scintillator well. The gauge is based on an integrated computer which is working under the control of Windows CE and is equipped with special software allowing for setting measurement parameters and communication with an external computer. The measured sample is placed inside the scintillator well either by an automatic sample feeder or manually. The pulses from a photomultiplier tube after amplification and shaping in pulse amplifiers are counted in the window of a single channel analyser by a programmable pulse counter under the control of microprocessor system. The measured count rate is the measure of activity of the assayed sample. Expected count rate error due to unstable operation of amplification is lower than 1%.
    Źródło:
    Nukleonika; 2012, 57, 4; 633-635
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metrological features of a beta absorption particulate air monitor operating with wireless communication system
    Autorzy:
    Jakowiuk, A.
    Urbański, P.
    Świstowski, E.
    Machaj, B.
    Pieńkos, J.
    Kowalska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/146846.pdf
    Data publikacji:
    2008
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    ambient air
    beta-ray absorption
    particulate matter
    wireless communication
    Opis:
    A system for measurements of particulate matter in the ambient air, employing beta absorption instrument AMIZ-2007 with wireless communication facilities based on GPRS technology, is presented. Uncertainty of measurements caused by the counting statistics was analyzed and it was found that at least 3 h of sampling time is needed to achieve coefficient of variation lower than 20% for the average concentration of particulate matter in the ambient air exceeding 10 μg/m3. Application of a C-14 beta ray source instead of Pm-147 improves sensitivity of the measurement ca. two times. Some results of on-line operation of the system with PM10 and PM2.5 samplers are also shown.
    Źródło:
    Nukleonika; 2008, 53, suppl. 2; 37-42
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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