Abstract
We present results obtained with a single photon counting system of 384 silicon microstrips (100 micron pitch) equipped with six RX64DTH ASICs including charge preamplifier, shaper, two discriminators and two 20-bit counters for each channel. The energy resolution of the system was determined to be of 0.72 keV (rms) with a spread of threshold setting of 0.32 keV for the whole 384-channel module (at energies of 29-33 keV), indicating its excellent potential for dual-energy imaging. Images of a mammographic test object made of PMMA, polyethylene and water were taken in scanning mode (strips parallel to incoming X-rays) under the dual energy X-ray beams. Images were subsequently processed with the dual energy subtraction technique (Alvarez and Macovski, 1976). Experimental results agree well with MCNP simulations of the mammographie phantom and demonstrate the capability of our system to obtain contrast cancellation between two kinds of materials, thereby enhancing the visibility of small features in the third material.
| Original language | English |
|---|---|
| Title of host publication | IEEE Nuclear Science Symposium Conference Record |
| Editors | J.A. Seibert |
| Pages | 2324-2328 |
| Number of pages | 5 |
| Volume | 4 |
| Publication status | Published - 2004 |
| Event | 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy Duration: Oct 16 2004 → Oct 22 2004 |
Other
| Other | 2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors |
|---|---|
| Country | Italy |
| City | Rome |
| Period | 10/16/04 → 10/22/04 |
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Keywords
- ASIC
- Dual energy
- Mammography
- Microstrip
- Silicon detector
- Single photon counting
ASJC Scopus subject areas
- Computer Vision and Pattern Recognition
- Industrial and Manufacturing Engineering
Cite this
A silicon microstrip system equipped with the RX64DTH ASIC for dual energy mammography. / Ramello, L.; Avila, C.; Bollini, D.; Rodriguez, A. E Cabal; Sanchez, C. Ceballos; Dabrowski, W.; Garcia, A. Diaz; Gambaccini, M.; Giubellino, P.; Grybos, P.; Gaitan, J. Lopez; Marzari-Chiesa, A.; Montano, L. M.; Prino, F.; Sanabria, J. C.; Sarnelli, A.; Swientek, K.; Taibi, A.; Tuffanelli, A.; Van Espen, P.; Wiacek, P.
IEEE Nuclear Science Symposium Conference Record. ed. / J.A. Seibert. Vol. 4 2004. p. 2324-2328.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A silicon microstrip system equipped with the RX64DTH ASIC for dual energy mammography
AU - Ramello, L.
AU - Avila, C.
AU - Bollini, D.
AU - Rodriguez, A. E Cabal
AU - Sanchez, C. Ceballos
AU - Dabrowski, W.
AU - Garcia, A. Diaz
AU - Gambaccini, M.
AU - Giubellino, P.
AU - Grybos, P.
AU - Gaitan, J. Lopez
AU - Marzari-Chiesa, A.
AU - Montano, L. M.
AU - Prino, F.
AU - Sanabria, J. C.
AU - Sarnelli, A.
AU - Swientek, K.
AU - Taibi, A.
AU - Tuffanelli, A.
AU - Van Espen, P.
AU - Wiacek, P.
PY - 2004
Y1 - 2004
N2 - We present results obtained with a single photon counting system of 384 silicon microstrips (100 micron pitch) equipped with six RX64DTH ASICs including charge preamplifier, shaper, two discriminators and two 20-bit counters for each channel. The energy resolution of the system was determined to be of 0.72 keV (rms) with a spread of threshold setting of 0.32 keV for the whole 384-channel module (at energies of 29-33 keV), indicating its excellent potential for dual-energy imaging. Images of a mammographic test object made of PMMA, polyethylene and water were taken in scanning mode (strips parallel to incoming X-rays) under the dual energy X-ray beams. Images were subsequently processed with the dual energy subtraction technique (Alvarez and Macovski, 1976). Experimental results agree well with MCNP simulations of the mammographie phantom and demonstrate the capability of our system to obtain contrast cancellation between two kinds of materials, thereby enhancing the visibility of small features in the third material.
AB - We present results obtained with a single photon counting system of 384 silicon microstrips (100 micron pitch) equipped with six RX64DTH ASICs including charge preamplifier, shaper, two discriminators and two 20-bit counters for each channel. The energy resolution of the system was determined to be of 0.72 keV (rms) with a spread of threshold setting of 0.32 keV for the whole 384-channel module (at energies of 29-33 keV), indicating its excellent potential for dual-energy imaging. Images of a mammographic test object made of PMMA, polyethylene and water were taken in scanning mode (strips parallel to incoming X-rays) under the dual energy X-ray beams. Images were subsequently processed with the dual energy subtraction technique (Alvarez and Macovski, 1976). Experimental results agree well with MCNP simulations of the mammographie phantom and demonstrate the capability of our system to obtain contrast cancellation between two kinds of materials, thereby enhancing the visibility of small features in the third material.
KW - ASIC
KW - Dual energy
KW - Mammography
KW - Microstrip
KW - Silicon detector
KW - Single photon counting
UR - http://www.scopus.com/inward/record.url?scp=23844511945&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=23844511945&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:23844511945
VL - 4
SP - 2324
EP - 2328
BT - IEEE Nuclear Science Symposium Conference Record
A2 - Seibert, J.A.
ER -