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Temperature dependencies of the energy and time resolution of silicon drift detectors

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arxiv 1103.2254 v1 pith:LSF2HXYF submitted 2011-03-11 physics.ins-det

Temperature dependencies of the energy and time resolution of silicon drift detectors

classification physics.ins-det
keywords temperatureresolutiondetectorsdriftenergypreamplifiersrangesdds
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The response of silicon drift detectors (SDDs), which were mounted together with their preamplifiers inside a vacuum chamber, was studied in a temperature range from 100 K to 200 K. In particular, the energy resolution could be stabilized to about 150 eV at 6 keV between 130 K and 200 K, while the time resolution shows a temperature dependence of T^3 in this temperature range. To keep a variation of the X-ray peak positions within 1 eV, it is necessary to operate the preamplifier within a stability of 1 K around 280 K. A detailed investigation of this temperature influences on SDDs and preamplifiers is presented.

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