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A special apparatus was designed in order to “write”, with nanometric resolution, microsize‐confined nanostructures in oxide samples. The nanostructures are produced by high energy heavy ion irradiation that allows nanostructuring the sample over its full thickness. The properties of the nanostructured areas can be further modulated by choosing the proper energy and fluence of the incoming ion beam. We present this set‐up and different kinds of nanostructured patterns created on high temperature superconducting films. We used the magneto‐optical analysis to directly show the effect of the confined nanostructures on the micron scale. The confined nanostructured area, embedded in the virgin matrix, is demonstrated to be a fruitful element for designing a new class of devices.

The aim of this work is to investigate the potential of superconducting magnesium diboride (MgB2) thin films, prepared by the in‐situ method, as broadband radiation detectors based on the microwave measurement of the complex impedance. The characterization of the films at microwave frequencies has been obtained by a coplanar resonator technique. The data analysis results in the determination of penetration depth, surface impedance and energy gap. In view of their microwave properties, particularly of the gap structure, the possible use of such MgB2 films as photon detectors is discussed in detail.

The increasing in complexity and scale of modern experiments places major requirements on the one‐line systems needed to operate them. The MODEL software has been developed by the Online Computing Group of the CERN Data Handling Division to provide an environment for data acquisition software. LEP and the new generation experiments were the target of the project. The Obelix on‐line system has been developed on the basis of the MODEL framework. We report our experience in the system development and integration.

An event display program based on HIGZ, KUIP and ZEBRA packages has been written for the OBELIX experiment (CERN PS201).The user interface has been based on KUIP. During the program development a KUIP‐SIMULATOR which simulates and modifies the Command Definition File and creates the Fortran File with direct calls to KUIP has been added to the KUIP facilities.An on‐line version of the system has also been made available which employees the Model Human Interface as a user interface. Events are accessed when desired from the monitoring programs with the use of global sections and of system flags to communicate.The system can run in a distributed environment by means of a remote graphic server; this way the display program can access data from the host computer memory, where the monitor program is resident, while the graphic interface and display run on a workstation.