A new approach to the front-end readout of cryogenic ionization detectors

Details A new approach to the front-end readout of cryogenic ionization detectors A new approach to the front-end readout of cryogenic ionization detectors

2011-02-21

arxiv.org/abs/1102.4143v2

Physics

Instrumentation and Detectors

14 pages, 15 figures and 15 equations

Scientific paper

We present a novel approach to the readout of ionization detectors. The solution allows to minimize the number of components and the space occupation close to the detector. This way a minimal impact is added on the radioactive background in those experiments where very low signal rates are expected, such as GERDA and MAJORANA. The circuit consists in a JFET transistor and a remote second stage. The DC feedback path is closed using a diode. Two signal cables are only necessary for biasing and readout.

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