Wide bandgap materials for detection of ionizing radiation
|Andrzej J. Wojtowicz|
Nicolaus Copernicus University, Institute of Physics, Grudziądzka 5/7, Toruń 87-100, Poland
In the last 10-15 years there has been a significant effort toward development and studies of new, more efficient and faster materials for detection of ionizing radiation. A growing demand for better scintillator crystals for detection of 511 keV gamma rays has been due mostly to recent advances in modern imaging systems employing positron emitting radionuclides for medical diagnostics in neurology, oncology and cardiology. While older imaging systems were almost exclusively based on BGO and NaI:Tl crystals the new systems, e.g. ECAT Accel, developed by Siemens/CTI, are based on recently discovered and developed LSO (Lu2SiO5:Ce, Ce-activated lutetium oxyorthosilicate) crystals. Interestingly, despite very good properties of LSO, there still is a strong drive toward development of new scintillator crystals that would show even better performance and characteristics.
Presentation: invited oral at E-MRS Fall Meeting 2003, Symposium A, by Andrzej J. Wojtowicz
See On-line Journal of E-MRS Fall Meeting 2003
Submitted: 2003-06-25 14:32 Revised: 2009-06-08 12:55