A new multi-energy CT for small animals is operative (now only in scanner mode) at the Physics Department of the University of Bologna. The system makes use of a set of quasimonochromatic X-ray beams produced by means of an Highly- Oriented Pyrolytic Graphite Bragg monochromator. This source is able to provide beams with energy tunable in a range from 20 to 70 keV. Here we present a complete characterization of the source. A theoretical model of the source has been analyzed, according to a very-well known theory for diffracting crystals. The beams have also been characterized in resolution and intensity, all over the accessible range, and we present here some measured spectra.
Development of a Multi-Energy CT for small animals: characterization of the quasi-monochromatic X-ray source
TURCO, ALESSANDRO;ROMA, LAURA;ROSSI, PIER LUCA;LANCONELLI, NICO;BALDAZZI, GIUSEPPE
2007
Abstract
A new multi-energy CT for small animals is operative (now only in scanner mode) at the Physics Department of the University of Bologna. The system makes use of a set of quasimonochromatic X-ray beams produced by means of an Highly- Oriented Pyrolytic Graphite Bragg monochromator. This source is able to provide beams with energy tunable in a range from 20 to 70 keV. Here we present a complete characterization of the source. A theoretical model of the source has been analyzed, according to a very-well known theory for diffracting crystals. The beams have also been characterized in resolution and intensity, all over the accessible range, and we present here some measured spectra.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
