Published February 5, 2002
| Version v1
Journal article
Aluminum Superconducting Tunnel Junction as X-ray detector: Technological aspects and phonon decoupling from the substrate
Creators
- 1. INFM, Dipartimento di Scienze Fisiche, Universita' Federico II, Naples (Italy)
- 2. INFN, Sez. Napoli, Naples (Italy)
- 3. CNR-Istituto di Cibernetica, I-80078 Pozzuoli, Naples (Italy)
- 4. CNR-Istituto di Cibernetica, I-80078 Pozzuoli, Naples, Italy and INFN, Sez. Napoli, Naples (Italy)
- 5. Departments of Applied Physics and Physics, Yale University, New Haven, Connecticut 06520-8284 (United States)
- 6. Technische Universitat Munchen, Physik Department E15, D-85748 Garching (Germany)
- 7. INFM, Dipartimento di Fisica, Universita' di Salerno, I-84081, Baronissi, SA (Italy)
Description
We have investigated Al/Al2O3/Al Superconducting Tunnel Junctions (STJs) for their use as X-ray detector. The junctions have been fabricated on sapphire substrates both with and without a SiO buffer layer. It was found that the presence of the SiO significantly changes the Al2O3 tunnel barrier properties. Experiments under X-ray irradiation from 55Fe X-ray source are reported. The spectra show that the SiO buffer layer succeeds in reducing the events coming from the phonons generated into the substrate. Besides, the charge yield is about 85% for STJs with the SiO buffer layer, quite high in comparison with the 5% of STJs without the buffer layer
Additional details
Identifiers
- DOI
- 10.1063/1.1457618;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 605
- Journal Issue
- 1
- Journal Page Range
- p. 157-160
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 9. international workshop on low temperature detectors
- Dates
- 22-27 Jul 2001
- Place
- Madison, WI (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35081582
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALUMINIUM; ALUMINIUM OXIDES; DECOUPLING; IRON 55; JUNCTION DETECTORS; LAYERS; PHONONS; SAPPHIRE; SILICON OXIDES; SUBSTRATES; SUPERCONDUCTING JUNCTIONS; THIN FILMS; TUNNEL EFFECT; X RADIATION; X-RAY DETECTION; X-RAY SOURCES; X-RAY SPECTRA
- Descriptors DEC
- ALUMINIUM COMPOUNDS; BETA DECAY RADIOISOTOPES; CHALCOGENIDES; CORUNDUM; DETECTION; ELECTROMAGNETIC RADIATION; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-ODD NUCLEI; FILMS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; IRON ISOTOPES; ISOTOPES; MEASURING INSTRUMENTS; METALS; MINERALS; NUCLEI; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; QUASI PARTICLES; RADIATION DETECTION; RADIATION DETECTORS; RADIATION SOURCES; RADIATIONS; RADIOISOTOPES; SEMICONDUCTOR DETECTORS; SILICON COMPOUNDS; SPECTRA; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- (c) 2002 American Institute of Physics.