Quasiparticle diffusion and edge losses in superconducting tunnel junction detectors with two active electrodes

被引：11

作者：

Parlato, L

Ammendola, G

Cristiano, R

Esposito, E

Frunzio, L

Kraus, H

Lisitskii, M

Nappi, C

Pagano, S

Peluso, G

Pepe, G

Valko, P

Barone, A

机构：

[1] CNR, Ist Cibernet, I-80072 Arco, Napoli, Italy

[2] Univ Naples Federico II, Dipartimento Sci Fisiche, INFM, Naples, Italy

[3] Osservatorio Astron Capodimonte, I-80131 Naples, Italy

[4] Univ Oxford, Dept Phys Particle & Nucl Phys, Oxford, England

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 444卷 / 1-2期

关键词：

D O I：

10.1016/S0168-9002(99)01318-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A theoretical model to describe the spectral response of SIS tunnel junctions under irradiation in the presence of diffusion and edge losses of non-equilibrium quasiparticles has been developed. The model takes into account the back-tunnelling effect, in the general case of asymmetrical rates of tunnelling, gamma(12) not equal gamma(21). It provides a quantitative estimate of parameters like the edge reflectivity, the diffusion length and the diffusion coefficient, which are important parameters for a diagnostic of STJ-detectors. The predictions of the theory are compared with an experimental spectrum obtained from a Nb-based STJ. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：15 / 18

页数：4

共 6 条

[1] Quasiparticle diffusion, edge losses, and back-tunneling in superconducting tunnel junctions under x-ray irradiation [J].