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., A., A., B., W., B., Bertolucci, E., U., B., Conti, M., A., D.G., M. E., F., M., G., M., L., M., M., P., R., V., R., Russo, P., A., S.. - STAMPA. - 2:(1992), pp. 1301-1303. (IEEE Conference on Nuclear Science Symposium and Medical Imaging Orlando, FL, USA 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.
