Catalogo Articoli (Spogli Riviste)
OPAC HELP
Titolo: An X-ray photon-counting imaging spectrometer based on a Ta absorber with four superconducting tunnel junctions
Autore: den Hartog, R; Verhoeve, P; Martin, D; Rando, N; Peacock, A; Krumrey, M; Goldie, DJ;
- Indirizzi:
- European Space Agcy, Estec, Dept Space Sci, Div Astrophys, NL-2200 AG Noordwijk, Netherlands European Space Agcy Noordwijk Netherlands NL-2200 AG rdwijk, Netherlands Phys Tech Bundesanstalt, D-10587 Berlin, Germany Phys Tech Bundesanstalt Berlin Germany D-10587 , D-10587 Berlin, Germany Oxford Instruments Sci Res Div, Cambridge CB4 4WY, England Oxford Instruments Sci Res Div Cambridge England CB4 4WY B4 4WY, England
- Titolo Testata:
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
fascicolo: 1-2,
volume: 444,
anno: 2000,
pagine: 278 - 282
- SICI:
- 0168-9002(20000411)444:1-2<278:AXPISB>2.0.ZU;2-7
- Fonte:
- ISI
- Lingua:
- ENG
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- Engineering, Computing & Technology
- Citazioni:
- 9
- Recensione:
- Indirizzi per estratti:
- Indirizzo: den Hartog, R European Space Agcy, Estec, Dept Space Sci, Div Astrophys, POB 299, NL-2200 AG Noordwijk, Netherlands European Space Agcy POB 299 Noordwijk Netherlands NL-2200 AG
-
-
-
- Citazione:
- R. den Hartog et al., "An X-ray photon-counting imaging spectrometer based on a Ta absorber with four superconducting tunnel junctions", NUCL INST A, 444(1-2), 2000, pp. 278-282
Abstract
We present the first results obtained with a two-dimensional X-ray imagingspectrometer consisting of a 200 x 200 mu m(2) Ta absorber and read out byfour Ta/Al superconducting tunnel junctions (STJs). A preliminary image reconstruction algorithm allows the visualisation of the diffraction pattern from a 5 mu m pinhole illuminated with 10 keV X-rays. The image suggests a spatial resolution better than 10 mu m The algorithm does not take into account quasi-particle losses in the absorber. Hence, the pulse-height reconstruction is not optimal and the energy resolution varies significantly across the absorber. The best energy resolution is obtained for a 20 x 20 mu m(2) area in the centre of the absorber. and amounts to similar to 77 eV at a photon energy of 5895 eV, with a 70 eV electronic noise contribution, (C) 2000 Elsevier Science B.V. All rights reserved.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/05/13 alle ore 15:57:48