Radiant energy – Invisible radiant energy responsive electric signalling – Superconducting type
Reexamination Certificate
2005-09-30
2008-11-04
Hannaher, Constantine (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Superconducting type
Reexamination Certificate
active
07446314
ABSTRACT:
Superconducting Gamma-ray and fast-neutron spectrometers with very high energy resolution operated at very low temperatures are provided. The sensor consists of a bulk absorber and a superconducting thermometer weakly coupled to a cold reservoir, and determines the energy of the incident particle from the rise in temperature upon absorption. A superconducting film operated at the transition between its superconducting and its normal state is used as the thermometer, and sensor operation at reservoir temperatures around 0.1 K reduces thermal fluctuations and thus enables very high energy resolution. Depending on the choice of absorber material, the spectrometer can be configured either as a Gamma-spectrometer or as a fast-neutron spectrometer.
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Friedrich Stephan
Labov Simon E.
Niedermayr Thomas R.
Hannaher Constantine
Lawrence Livermore National Security LLC
Lee John H.
Taningco Marcus H
Wooldridge John P.
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