6533b857fe1ef96bd12b3c96
RESEARCH PRODUCT
Thermalization efficiency of superconducting absorbers for thermal X-ray microcalorimeters
Marco BarberaEric H. SilverEmanuele PerinatiSalvatore SerioSalvatore Seriosubject
PhysicsSuperconductivityCondensed matter physicsPhononDetectorQuasiparticleEnergy Engineering and Power TechnologyTrappingCondensed Matter PhysicsSuperconducting absorberElectronic Optical and Magnetic MaterialsComputational physicsThermalisation: MicrocalorimeterThermalQuasiparticlePhononsElectrical and Electronic EngineeringComputer Science::DatabasesEnergy (signal processing)description
The persistence of long living quasiparticles created in the energy thermalization process can affect the performances of a thermal X-ray microcalorimeter with superconducting absorber. Numerical simulations indicate that in an ab- sorber made of high-purity Sn, operated at temperatures lower than 100 mK, up to 60% of the deposited energy can remain trapped in the quasiparticle system for a time much longer than the time scale of the thermal sensor response, producing a reduction of the SNR of the detector. Other pure superconductors can present the same problem and therefore a microscopic analysis of the physical properties can be useful to identify suitable absorbing materials and optimize the detector performances.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-08-01 | Physica C: Superconductivity |