Quasiparticle diffusion over several mm in cryogenic detectors
| Parent link: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment: Scientific Journal Vol. 465, iss. 2-3.— 2001.— [P. 440-446] |
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| Altri autori: | , , , , , , , , |
| Riassunto: | Title screen The use of quasiparticle diffusion in a superconducting film has the potential to allow an increase in the size of a cryogenic detector without proportional loss of energy resolution. The quasiparticle lifetime and the diffusion constant are critical parameters which have limited this development. Using W superconducting phase transition thermometers as the sensors and a W/Al bilayer as the diffusion film, we have measured quasiparticle diffusion over a distance of 2mm and deduced a diffusion constant of D = 2.5x10‾4m2/s and a quasiparticle lifetime of т = 9.0 ms , which is, to our knowledge, by far the longest ever observed. With Ir/Au thermometers and an Ir/Au/Al diffusion film we found D = 4.6x10‾3m2/s and т = 0.43 ms with diffusion over 4mm, the longest distance observed to date Режим доступа: по договору с организацией-держателем ресурса |
| Pubblicazione: |
2001
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| Soggetti: | |
| Accesso online: | http://www.sciencedirect.com/science/article/pii/S0168900201006210 http://elibrary.ru/item.asp?id=14121112& |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=637193 |