Showing papers by "Dimitris Maroulis published in 1997"
TL;DR: In this paper, the authors present a digital solar radio spectrograph located at the Thermopyles station, Greece, operated by the University of Athens Observations cover the range from 110 to 600 MHz using a 7m parabolic antenna.
Abstract: We present the new digital solar radio spectrograph located at the Thermopyles station, Greece, operated by the University of Athens Observations cover the range from 110 to 600 MHz, using a 7-m parabolic antenna The reception system uses two techniques in parallel: sweep frequency and multi-channel, the latter being based on the Acousto-Optical technique The data acquisition system is based on two subsystems, a Sun Sparc-5 workstation and a front end based on a VME Motorola system The two subsystems are connected through the Ethernet and are operated using the VxWorks real-time package The daily operation is completely automated: pointing of the antenna to the sun, starting and stopping the observations at pre-set times, acquiring data, compressing data by silence suppression in real time, and archiving the data on a routine manner on DAT tapes Apart from its usual function, this instrument will be used in conjunction with other instruments, including the Nancay decameter array and the low frequency radio receivers on the Wind spacecraft
6 citations
12 May 1997
TL;DR: The first major facility of IASA, now under construction, is a 242 MeV two-stage CW cascade microtron as discussed by the authors, which has been set up for the installation of the injector and the testing of several key subsystems.
Abstract: The Institute of Accelerating Systems and Applications (IASA) is pursuing research and facilitates postgraduate studies in traditional and cross-disciplinary areas where accelerators play an important role. The first major facility of IASA, now under construction, is a 242 MeV two-stage CW cascade microtron. During the ongoing period of civil construction a staging area has been set up for the installation of the injector and the testing of several key subsystems. A progress report on this project is presented here.
3 citations