Thicker, more efficient superconducting strip-line detectors for high throughput macromolecules analysis

Casaburi, A. , Ejrnaes, M., Zen, N., Ohkubo, M., Pagano, S. and Cristiano, R. (2011) Thicker, more efficient superconducting strip-line detectors for high throughput macromolecules analysis. Applied Physics Letters, 98(2), 023702. (doi:10.1063/1.3537808)

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Abstract

Fast detectors with large area are required in time-of-flight mass spectrometers for high throughput analysis of biological molecules. We fabricated and characterized subnanosecond 1×1 mm2 NbN superconducting strip-line detectors. The influence of the strip-line thickness on the temporal characteristics and efficiency of the detector for the impacts of keV accelerated molecules is investigated. We find that the increase of thickness improves both efficiency and response time. In the thicker sample we achieved a rise time of 380 ps, a fall time of 1.38 ns, and a higher count rate. The physics involved in this behavior is investigated.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Casaburi, Dr Alessandro
Authors: Casaburi, A., Ejrnaes, M., Zen, N., Ohkubo, M., Pagano, S., and Cristiano, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
ISSN:0003-6951
Published Online:11 January 2011

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