The first page-sized a-Si:H sensor array intended for use as a contact imager is described. The array collects light very efficiently, making it well suited to high speed document input and medical x-ray imaging (by the addition of a phosphor). The array structure, control electronics and imaging properties are discussed. Data is presented from a 13" diagonal array with 512⋗560 pixels of size 0.45 mm, although the technology is capable of higher resolution. The image is read-out using 8 ICs containing 64 voltage sensitive amplifiers. The intrinsic dynamic range of the imaging array is about 105, but is limited to <1000 by the read-out amplifiers. The minimum read-out time of about 25 msec allows real time imaging.
X‐ray imaging arrays for impurity transport studies on the Texas Experimental Tokamak