Title :
Spectroscopic-grade X-ray imaging up to 100-kHz frame rate with controlled-drift detectors
Author :
Castoldi, Andrea ; Guazzoni, Chiara ; Rehak, Pavel ; Strüder, Lothar
Author_Institution :
Dipartimento di Ingegneria Nucl., Politecnico di Milano, Italy
fDate :
8/1/2001 12:00:00 AM
Abstract :
Controlled-drift detectors are fully depleted silicon detectors for X-ray imaging that combine good position resolution with very fast frame readout. The basic feature of the controlled-drift detector is the transport of the charge packets stored in each pixel column to the output electrode by means of a uniform drift field. The drift time of the charge packet identifies the pixel of incidence. Images of an X-ray source obtained with the controlled-drift detector up to 100-kHz frame rate are presented and discussed. The achievable energy resolution as a function of the operating temperature and frame rate is analyzed
Keywords :
X-ray detection; position sensitive particle detectors; silicon radiation detectors; 100 kHz; Si; X-ray imaging; charge packets; controlled-drift detectors; fast frame readout; frame rate; fully depleted silicon detectors; position resolution; spectroscopic-grade X-ray imaging; Anodes; Electrodes; Electrons; Energy resolution; High-resolution imaging; Spectroscopy; Temperature; X-ray detection; X-ray detectors; X-ray imaging;
Journal_Title :
Nuclear Science, IEEE Transactions on
