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Digitale Medien

Feasibility of a detector for nuclear radiation based on superconducting grains (1987)

Seidel, W. ; Oberauer, L. ; Feilitzsch, F. v.

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 58 (1987), S. 1471-1476

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Details

ISSN: 1089-7623

Quelle: AIP Digital Archive

Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: We studied the sensitivity of a radiation detector based on metastable superconducting grains. Radiation is detected by the phase transition from the superconducting to the normal-conducting state of a grain induced by energy absorption. Metastable states of tin and cadmium grains were tested. The phase boundary of a large sample of grains was found to be broadened due to variations of the phase diagrams of single grains. Therefore, the use of superconductors with a low critical temperature Tc and an operation temperature close to Tc seems advisable to increase the sensitivity of the detector. For Cd grains a sensitivity normalized to the grain volume of 12 eV/μm3 was achieved for the detection of γ rays. These grains showed an instability in the superconducting to normal-conducting phase transition for temperatures below 350 mK.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1139383

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