Double-sided microstrip silicon crystals are being tested as detectors for X-rays in the diagnostic energy range (10-100 keV) for digital radiology. An analog-to-digital-converter and CAMAC based acquisition system has been developed to study the imaging capabilities of a silicon microstrip detector with 100 and 200 μm read-out pitch. The authors present the first images of submillimeter high-contrast phantoms obtained with an X-ray mammography tube operating at high flux density. A preliminary contrast transfer function study was performed; a low frequency contrast of about 0.97 for a high-contrast phantom and a decrease of contrast at a frequency of 5 1p/mm corresponding to the detector intrinsic spatial resolution (100 μm) were measured
Digital imaging in radiology: preliminary results obtained with a high spatial resolution 2D silicon detector / B., Alfano; A., Bandettini; W., Bencivelli; Bertolucci, Ennio; U., Bottigli; Conti, Maurizio; A., Del Guerra; M. E., Fantacci; M., Gambaccini; M., Larobina; M., Marziani; P., Randaccio; V., Rosso; Russo, Paolo; A., Stefanini. - STAMPA. - 2:(1992), pp. 1301-1303. (Intervento presentato al convegno IEEE Conference on Nuclear Science Symposium and Medical Imaging tenutosi a Orlando, FL, USA nel 25-31/10/1992) [10.1109/NSSMIC.1992.301517].
Digital imaging in radiology: preliminary results obtained with a high spatial resolution 2D silicon detector
BERTOLUCCI, ENNIO;CONTI, MAURIZIO;RUSSO, PAOLO;
1992
Abstract
Double-sided microstrip silicon crystals are being tested as detectors for X-rays in the diagnostic energy range (10-100 keV) for digital radiology. An analog-to-digital-converter and CAMAC based acquisition system has been developed to study the imaging capabilities of a silicon microstrip detector with 100 and 200 μm read-out pitch. The authors present the first images of submillimeter high-contrast phantoms obtained with an X-ray mammography tube operating at high flux density. A preliminary contrast transfer function study was performed; a low frequency contrast of about 0.97 for a high-contrast phantom and a decrease of contrast at a frequency of 5 1p/mm corresponding to the detector intrinsic spatial resolution (100 μm) were measuredI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
