A pixel-like matrix for digital mammography

被引:6
作者
Arfelli, F
Barbiellini, G
Bonvicini, V
Bravin, A
Cantatore, G
Castelli, E
DiMichiel, M
Longo, R
Olivo, A
Pani, S
Pontoni, D
Poropat, P
Prest, M
Tomasini, F
Vacchi, A
Tromba, G
机构
[1] IST NAZL FIS NUCL,I-34127 TRIESTE,ITALY
[2] SINCROTRONE TRIESTE,I-34012 TRIESTE,ITALY
关键词
D O I
10.1016/S0168-9002(96)00313-0
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The SYRMEP (SYnchrotron Radiation for MEdical Physics) collaboration is now developing a microstrip silicon detector with high granularity and high efficiency for research in digital mammography. The project is planning to use a monochromatic X-ray beam, from a bending magnet, of ELETTRA, the synchrotron facility installed in Trieste. The detector is a matrix of pixels, formed by the slacking of different layers of strip silicon pads, with pixel dimensions determined by the pitch and the thickness of the pads themselves. The final detector, an AC-coupled FOXFET-type high resistivity silicon pad, will cover the whole beam region of 4 x 150 mm(2). Different pixel sizes have been tested (from 0.5 x 0.5 mm(2) to 0.3 x 0.2 mm(2)). The dead volume in the front of the detector has been reduced in order to reach 80% efficiency in the photon collection. The stacking of the layers has been obtained by means of screen printing deposits of non-conductive glue whose height has been chosen in order to minimize the inter-layer dead region and the cross talk of superimposed pixels, We present here the results of our studies in terms of imaging and the status of the final detector.
引用
收藏
页码:402 / 405
页数:4
相关论文
共 10 条
[1]  
ARFELLI F, 1993, PHYS MEDICA, V9, P229
[2]   New developments in the field of silicon detectors for digital radiology [J].
Arfelli, F ;
Barbiellini, G ;
Bonvicini, V ;
Cantatore, G ;
Castelli, E ;
DiMichiel, M ;
Longo, R ;
Olivo, A ;
Poropat, P ;
Prest, M ;
Tomasini, F ;
Tromba, G ;
Vacchi, A ;
Zampa, N .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 377 (2-3) :508-513
[3]   SILICON X-RAY-DETECTOR - FOR SYNCHROTRON-RADIATION DIGITAL RADIOLOGY [J].
ARFELLI, F ;
BARBIELLINI, G ;
CANTATORE, G ;
CASTELLI, E ;
CRISTAUDO, P ;
DALLAPALMA, L ;
DIMICHIEL, M ;
LONGO, R ;
POROPAT, P ;
ROSEI, R ;
SESSA, M ;
TOMASINI, F ;
TROMBA, G ;
VACCHI, A .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 353 (1-3) :366-370
[4]   Silicon detectors for digital radiography [J].
Arfelli, F ;
Barbiellini, G ;
Bonvicini, V ;
Bravin, A ;
Cantatore, G ;
Castelli, E ;
dallaPalma, L ;
diMichiel, M ;
Longo, R ;
Olivo, A ;
Poropat, P ;
Prest, M ;
Rosei, R ;
Savoia, A ;
Sessa, M ;
Tomasini, F ;
Tromba, G ;
Vacchi, A .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 367 (1-3) :48-53
[5]  
ARFELLI F, 1993, PHYS MEDICA, V9, P175
[6]  
Benini L, 1990, PHYS MEDICA, V6, P293
[7]   CASTOR a VLSI CMOS mixed analog-digital circuit for low noise multichannel counting applications [J].
Comes, G ;
Loddo, F ;
Hu, Y ;
Kaplon, J ;
Ly, F ;
Turchetta, R ;
Bonvicini, V ;
Vacchi, A .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 377 (2-3) :440-445
[8]  
DELLARICCA G, UNPUB TIMING READOUT
[9]   OPERATION AND RADIATION-RESISTANCE OF A FOXFET BIASING STRUCTURE FOR SILICON STRIP DETECTORS [J].
LAAKSO, M ;
SINGH, P ;
ENGELS, E ;
SHEPARD, PF .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 326 (1-2) :214-221
[10]  
VACCHI A, 1993, PHYS MEDICA, V9, P155