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  5. Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)
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Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/16842
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dc.contributor.authorKontogeorgos, A.en
dc.contributor.authorTsitsipis, P.en
dc.contributor.authorCaroubalos, C.en
dc.contributor.authorMoussas, X.en
dc.contributor.authorPreka-Papadema, P.en
dc.contributor.authorHilaris, A.en
dc.contributor.authorPetoussis, V.en
dc.contributor.authorBouratzis, C.en
dc.contributor.authorBougeret, J. L.en
dc.contributor.authorAlissandrakis, C. E.en
dc.contributor.authorDumas, G.en
dc.date.accessioned2015-11-24T18:33:56Z-
dc.date.available2015-11-24T18:33:56Z-
dc.identifier.issn0922-6435-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/16842-
dc.rightsDefault Licence-
dc.subjectinstrumentationen
dc.subjectsolar radio astronomyen
dc.subjectsolar radio burstsen
dc.subjectradio spectrographen
dc.subjectradiospectrographen
dc.titleThe improved ARTEMIS IV multichannel solar radio spectrograph of the University of Athensen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1007/s10686-006-9066-x-
heal.identifier.secondary<Go to ISI>://000242702500005-
heal.identifier.secondaryhttp://www.springerlink.com/content/00811hx5225luwmv/fulltext.pdf-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.publicationDate2006-
heal.abstractWe present the improved solar radio spectrograph of the University of Athens operating at the Thermopylae Satellite Telecommunication Station. Observations now cover the frequency range from 20 to 650 MHz. The spectrograph has a 7-meter moving parabola fed by a log-periodic antenna for 100-650 MHz and a stationary inverted V fat dipole antenna for the 20-100 MHz range. Two receivers are operating in parallel, one swept frequency for the whole range (10 spectrums/sec, 630 channels/spectrum) and one acousto-optical receiver for the range 270 to 450 MHz (100 spectrums/sec, 128 channels/spectrum). The data acquisition system consists of two PCs (equipped with 12 bit, 225 ksamples/sec ADC, one for each receiver). Sensitivity is about 3 SFU and 30 SFU in the 20-100 MHz and 100-650 MHz range respectively. The daily operation is fully automated: receiving universal time from a GPS, pointing the antenna to the sun, system calibration, starting and stopping the observations at preset times, data acquisition, and archiving on DVD. We can also control the whole system through modem or Internet. The instrument can be used either by itself or in conjunction with other instruments to study the onset and evolution of solar radio bursts and associated interplanetary phenomena.en
heal.journalNameExperimental Astronomyen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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