Non-equilibrium normal metal superconducting tunnel junction detectors
Creators
- 1. University STHB, Alger (Algeria). Inst. of Phys.
- 2. Lawrence Livermore Nat. Lab., CA (United States). Lab. for Exp. Astrophys.
- 3. California Univ., Berkeley, CA (United States). Center for Particle Astrophysics
Description
Measurements of a Normal metal-Insulating-Superconducting (NIS) tunnel junction sensor Ag/AlOx/Al coupled to a thick Pb absorber are presented. All films were thermally deposited on a Si3N4 membrane using a shadow-mask technique. Irradiation experiments with a 55Fe source were performed using a high bandwidth SQUID with one junction only. We observe a strong position dependence of the pulse shape and amplitude. The different classes of events are probably related to different elements of the sensor. At a bath temperature of 80 mK we have obtained for the main Mn Kα peak an energy resolution of 100 eV FWHM. We have preliminary evidence for absorption in the lead and efficient trapping of the resulting quasiparticles on the NIS normal electrode. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 370
- Journal Issue
- 1
- Journal Page Range
- p. 121-123.
- ISSN
- 0168-9002
- CODEN
- NIMAER
Conference
- Title
- 6. international workshop on low temperature detectors (LTD-6).
- Dates
- 28 Aug - 1 Sep 1995.
- Place
- Beatenberg, Interlaken (Switzerland).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 27042055
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION; ALUMINIUM; ALUMINIUM OXIDES; ELECTRODES; ENERGY RESOLUTION; KEV RANGE 01-10; LEAD; POSITION SENSITIVE DETECTORS; PULSES; QUASI PARTICLES; SILVER; SPACE DEPENDENCE; SUPERCONDUCTING DEVICES; SUPERCONDUCTING JUNCTIONS; TEMPERATURE RANGE 0000-0013 K; TRAPPING; TUNNEL EFFECT; X-RAY DETECTION
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHALCOGENIDES; DETECTION; ELEMENTS; ENERGY RANGE; KEV RANGE; MEASURING INSTRUMENTS; METALS; OXIDES; OXYGEN COMPOUNDS; RADIATION DETECTION; RADIATION DETECTORS; RESOLUTION; SORPTION; TEMPERATURE RANGE; TRANSITION ELEMENTS