New frequency-modulation readout based on relaxation oscillations
| dc.creator | Furlan, Miha | |
| dc.creator | Kirk, Eugenie | |
| dc.creator | Zehnder, Alex | |
| dc.date | 2005-07-01 | |
| dc.date | 2005-12-16 | |
| dc.date.accessioned | 2026-07-07T06:43:21Z | |
| dc.date.available | 2026-07-07T06:43:21Z | |
| dc.description | Scaling of multi-pixel cryogenic detectors for imaging becomes increasingly difficult with size due to complexity of readout circuitry and cryogenic constraints (thermal load from wiring). We propose and demonstrate a new readout scheme based on a highly stable RF oscillator composed of a superconducting tunnel junction which exhibits relaxation oscillations. The oscillation frequency is almost linear with the analog bias signal over a wide operation range. The frequency signals from different detectors can be combined into one single readout line. The current noise of an optimized circuit is about 5 pA/sqrt(Hz), which is comparable to standard SQUID amplifiers. We show experimental data from `stand-alone' operation as well as response to microcalorimeter X-ray signals. | |
| dc.description | 3 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/physics/0507005 | |
| dc.identifier | http://arxiv.org/abs/physics/0507005 | |
| dc.identifier | Nucl. Instrum. Methods Phys. Res. A 559, 796 (2006) | |
| dc.identifier | doi:10.1016/j.nima.2005.12.143 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/102382 | |
| dc.subject | Instrumentation and Detectors | |
| dc.title | New frequency-modulation readout based on relaxation oscillations | |
| dc.type | text |