Abstract: An X-ray detector using a semiconductor detector, most preferably a Silicon Drift Detector, utilizes a field effect transistor or other voltage-controlled resistance to generate an output voltage proportional to its input charge (which is generated by the X-ray photons incident on the semiconductor detector). To keep the charge (and thus the output voltage) to an acceptable range—one wherein the relationship between output voltage and input charge is substantially proportional—a feedback circuit is provided between the output and input terminals, wherein the charge on the input terminal is depleted when the output voltage begins leaving the desired range. Preferably, this is done by a comparator which monitors the output voltage, and provides a reset signal to the input terminal when it begins moving out of range. Alternatively or additionally, the reset signal may be a pulse supplied to the input terminal from a pulse generator activated by the comparator.

Abstract: A segmented rolled food item is continuously produced using a rotating segmenting roller having a plurality of parallel circumferential lanes. Each lane contains a series of circumferentially spaced knife edges that are disposed at least substantially parallel to the axis of rotation of the roller. A segmented rolled food item is produced by feeding multiple continuous at least substantially parallel strips of a flowable food product, each of which are deposited on pre-slit parallel strips of support material, between the nip of an upper anvil surface and the lower surface of the rotating segmenting roller. The segmentation of the food strip occurs without segmentation of the support strip. After segmenting, the food strip and the support material are cut into lengths to form leading and trailing ends. Each strip of food is rolled around a leading end of the support material to obtain a segmented rolled food item.