The model for determinig D-region electron density during Solar X-ray flares has been advanced and extended, so as to describe and predict the time and height profile of the electron density throughout the flare duration and within the range of 50-90 km height above Earth. For the assessment of the model's output comparison with the standard ionosphere model IRI_2007 and with the measurements of the Tromso radar are performed showing good agreement.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 1821947Organisation of the 2nd Jozef Stefan International Postgraduate School Students Conference, 27th May 2010. The main aim of the conference was to establish a connection between young researchers from academia with representatives from businesses. Proceedings of the conference were also published
C.07 Other editorial board
COBISS.SI-ID: 251232256Doctoral dissertation, Barbara Šetina Batič, Jožef Stefan International Postgraduate School Work was done on structuring of surfaces by ion beam irradiation (ion beam sputtering). Different spectroscopic techniques were used to correlate the patterns formed with the parameters of ion beam, chemical composition and crystalografic orientation of surfaces.
B.06 Other
COBISS.SI-ID: 251783168A response (sensitivity) of the Quadrupole Mass Spectrometer QMS for different gases depends on many factors. For quantitative measurements the QMS has to be calibrated at regular intervals. The talk was focused on in-situ calibration procedures (which do not require a disasembly of QMS from vacuum system) taking into account also characteristics of the vacuum system like effective pumping speed for different gases at the location of QMS, which enables direct calibration of the QMS for gas quantity and gas flow measurements
B.04 Guest lecture
COBISS.SI-ID: 853418Results for two completely different measurement methods (gravimetric measurements of water vapor uptake and integration of vacuum outgassing rate) showed comparable amount of absorbed water vapor by a Viton gasket. Water absorption is a very slow process and it takes more than a week to reach equilibrium after a change of partial pressure of water vapor. Viton can absorb considerable amount of water vapor, of the order of 0.1% of its mass at room temperature and at 50% relative humidity.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 814250