Abstract
Monoenergetic X-rays extracted from synchrotron radiation were detected by two kinds of Nb-based superconducting tunnel junctions. Each of junctions had been fabricated by using different fabrication processes. Measurements were carried out under severe noisy circumstances. A cooled-FET preamplifier was employed to improve the signal to noise ratio. Pulse height distributions of the output signal of the preamplifier were obtained for monoenergetic X-rays in a range of 4 to 15 keV. Values of the energy for single electron collection were found to exhibit a nonlinear dependence on the energy of incident X-rays.
| Original language | English |
|---|---|
| Pages (from-to) | 29-34 |
| Number of pages | 6 |
| Journal | Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory |
| Volume | 61 |
| Issue number | 6-7 |
| Publication status | Published - Dec 1 1997 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Electrical and Electronic Engineering