Detection of alpha radiation using Josephson tunneling junctions
Abstract
A detector-counter of nuclear emission based on a long Josephson tunneling junction is described which continuously records the volt-ampere characteristic. The detector uses 120 x 10 sq-micron Josephson junctions consisting of niobium film with a 2000-A-thick lower electrode, 3000-A-thick upper electrode, and a 30-A-thick barrier layer of NbO(x). Results obtained for alpha radiation are presented. It is shown that the use of Josephson tunneling junctions in nuclear radiation detectors makes it possible to achieve high spatial resolution with characteristic dimensions of the sensitive region of several microns.
- Publication:
-
Pisma v Zhurnal Tekhnischeskoi Fiziki
- Pub Date:
- March 1986
- Bibcode:
- 1986PZhTF..12..301G
- Keywords:
-
- Alpha Particles;
- Josephson Junctions;
- Nuclear Radiation;
- Radiation Detectors;
- Volt-Ampere Characteristics;
- Solid Electrodes;
- Spatial Resolution;
- Instrumentation and Photography