A high efficiency single photon counting silicon matrix for position sensitive X-ray detection

Author

Arfelli, F. ; Bonvicini, V. ; Bravin, A. ; Cantatore, G. ; Castelli, E. ; Palma, L. Dalla ; Di Michiel, M. ; Longo, R. ; Olivo, A. ; Pani, S. ; Pontoni, D. ; Poropat, P. ; Prest, M. ; Rashevsky, A. ; Tromba, G. ; Vacchi, A. ; Vallazza, E.

Author_Institution

Ist. Nazionale di Fisica Nucl., Trieste, Italy

fYear

1997

fDate

9-15 Nov 1997

Firstpage

304

Abstract

The SYRMEP collaboration (Synchrotron Radiation for Medical Physics) is developing a novel imaging device to be used with a laminar monochromatic synchrotron radiation X-ray beam for applications in digital mammography. Its main components are silicon microstrip detectors and a dedicated VLSI readout chip based on the single photon counting concept. The innovative geometry-several overlapped detectors with strips parallel to the beam direction-determines a matrix of pixels, each of them having an area of 200×300 μm², which can detect up to 10⁶ photons/(mm² s) with 90% efficiency at 25 keV. Front-end and readout electronics are expandable in a modular fashion and can be coupled to successive receptor versions with increasing number of channels, while a VME based DAQ system offers full testing facilities. In our view this system is providing specific and original contributions to digital mammography but it could also be useful in other modern radiology fields

Keywords

CMOS integrated circuits; VLSI; X-ray detection; diagnostic radiography; digital readout; photon counting; position sensitive particle detectors; silicon radiation detectors; SYRMEP collaboration; Si; Si microstrip detectors; VLSI readout chip; digital mammography; front-end electronics; pixels; position sensitive X-ray detection; readout electronics; single photon counting; Biomedical imaging; Collaboration; Electronic equipment testing; Mammography; Optical imaging; Physics; Silicon; Synchrotron radiation; Transmission line matrix methods; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1997. IEEE

Conference_Location

Albuquerque, NM

ISSN

1082-3654

Print_ISBN

0-7803-4258-5

Type

conf

DOI

10.1109/NSSMIC.1997.672590

Filename

672590