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Quantum Giaever Detectors: STJ's.
- Source :
- Cryogenic Particle Detection; 2005, p217-266, 50p
- Publication Year :
- 2005
-
Abstract
- Solid state detectors rely on the interaction of energy with matter. The absorbed energy from for example, a charged particle, a photon or a phonon is degraded and shared among a number of electronic, thermal and/or magnetic excitations. Quantum Giaever detectors are usually called super-conducting tunneling junction devices, in short STJ's by the community. In these devices, energy is absorbed in a metallic electrode in its super-conducting state. The energy breaks Cooper pairs and an "excess" number of electronic excitations, called quasi-particles is created. The number of these quasi-particles is a measure of the energy absorbed in the electrode which can be determined in a tunneling experiment. The sensitivity is sufficient to perform 1 eV photon counting. In this review we describe the physical processes governing the creation, loss and collection of quasi-particles in an STJ used as photon sensor. We shall first emphasize the importance of device parameters on the quasi-particle creation efficiency. In the second part we focus on the physical processes and device parameters affecting the quasi-particle collection efficiency. Intrinsic and experimental noise sources are discussed in separate sections. Finally, we attempt to browse a portrait of the line of development followed in different laboratories during the last decade or so. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISBNs :
- 9783540201137
- Database :
- Supplemental Index
- Journal :
- Cryogenic Particle Detection
- Publication Type :
- Book
- Accession number :
- 32912387
- Full Text :
- https://doi.org/10.1007/10933596_5