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Messerschmitt-boelkow-blohm Gmbh

Lothar Strueder

Gerhard Lutz

Josef Kemmer

Peter Holl

A semiconductor radiation detector has an at least partially or even completely depleted base region of a first conductivity, to which a bias voltage is applied, and has at least one output or read-out electrode at which a signal is produced by the charge carriers generated by radiation incident on the detector. The read-out or output electrode includes a highly doped region of the first or a second conductivity, onto which an insulating layer and thereupon a conducting electrode layer are applied for outputting the generated or induced signals. The voltage application to the highly doped region of the read-out or output electrode is achieved through a high impedance through the base region of the detector, from at least one electrode of the same conductivity as that of the output or read-out electrode. Thus, it is simply possible to capacitively couple the detector to external circuitry even if these external circuits have a complex structure or arrangement.

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Munich, Germany

Lothar Strueder