摘要:
A detector for detecting signals derived from charged particles (1) incident thereon, the charged particles consisting of at least one of protons, deuterons, tritons, and α-particles, and for distinguishing signals caused from the charged particles interacting with the detector from background radiation containing neutron and gamma particles, the detector comprising: a silicon wafer (4) having an entrance opening etched through a low-resistivity layer of silicon; a sensitive layer of high-resistivity silicon (3) for converting the radiation particles into detectable charges; a passivation layer (6) between the low-resistivity layer and the sensitive layer of high-resistivity silicon; a plurality of electrodes (2) built in the form of vertical channels for collecting the charges etched into the sensitive layer of high-resistivity silicon; and read-out electronics for generating signals from the collected charges, wherein the detector is constructed to take in the charged particles to be detected directly through the passivation layer and wherein the thickness of the sensitive layer of high-resistivity silicon has been selected as a function of the mean free path of the charged particles to be detected.
摘要:
A logistics system for managing objects in a space includes at least one boundary area between the space and external surroundings, and transfer devices for handling the objects. The transfer device and/or an object handled thereby has been identified. The system also includes a management unit to identify a mutual order for the objects at a first time instant on the basis of identification and location data regarding the transfer devices and/or the objects, and to determine a desired mutual order for the objects at a second time instant subsequent to the first time instant. In addition, the management unit can commence the actuation of the transfer devices relative to each other prior to the second time instant in such a way that the desired mutual order for the objects will have been achieved at the second time instant.