Radiation effects in Gd3(Al,Ga)5:O12:Ce3+ single crystals induced by swift heavy ions

Nano-porosity in GaSb induced by swift heavy ion irradiation

P. Kluth, J. Sullivan, W. Li, R. Weed, C. S. Schnohr, R. Giulian, L. L. Araujo, W. Lei, M. D. Rodriguez, B. Afra, T. Bierschenk, R. C. Ewing, and M. C. Ridgway Department of Electronic Materials Engineering, Research School of Physics and Engineering, Australian National University, Canberra, Australian Capital Territory 0200, Australia ARC Centre for Antimatter-Matter Studies, AMPL, Research S...

Microstructural changes of graphite irradiated with swift heavy ions

Several methods, such as electron microscopy, scanning tunnelling microscopy (STM), X-ray diffraction, and decoration technique can be used to observe radiation damage in materials. In this work, we report microstructural changes and defect clusters induced by swift heavy ions (SHI) on graphite surfaces, visualized by scanning electron microscopy (SEM). Our studies have been performed on fine-g...

Degradation of polyimide under the irradiation with swift heavy ions

This study concentrates on radiation-induced ageing effects of polymers planned as insulating materials in the rapidly cycling superconducting magnets presently being developed for the FAIR facility. Although beam control and minimization of beam losses will be a major issue, the exposure of insulating parts (e.g. polyimide, polyetherimide, and glassenforced epoxy-compounds) of various accelera...

Mechanical degradation of polyimide induced by swift heavy ion irradiation

In the new superconducting FAIR magnets, polyimide films (Kapton) will be used as insulator. During operation, the material is exposed to high-dose radiation and it has to withstand enormous mechanical forces induced by the magnet field ramping. For better lifetime estimation, this study investigates radiation-induced degradation of the mechanical properties of Kapton by tensile strength measur...

Defects creation in sapphire by swift heavy ions: a fluence depending process