Search

Your search keyword '"Weinand, Udo"' showing total 19 results
Start Over Author "Weinand, Udo" Publication Year Range Last 10 years
19 results on '"Weinand, Udo"'

1. Near-infrared Radiation Induced Attenuation in Nested Anti-resonant Hollow-core Fibres

Author

Medaer, Sacha, primary, Bradley, Tom, additional, DI FRANCESCA, DIEGO, additional, Fu, Qiang, additional, Jasion, Gregory, additional, Kuhnhenn, Jochen, additional, Meroli, Stefano, additional, Poletti, Francesco, additional, Schmauss, Bernhard, additional, TARANTA, Austin, additional, Vidiajev, Konstantin, additional, Weinand, Udo, additional, Wheeler, Natalie, additional, Wolf, Raphael, additional, and Ricci, Daniel, additional

Published
2023
Full Text
View/download PDF

8. Radiation hardened temperature measurement chain based on femtosecond laser written FBGs in a specific optical fiber

Author

Mélin, Gilles, Lablonde, L., Robin, Thierry, Kuhnhenn, Jochen, Weinand, Udo, Morana, Adriana, Girard, Sylvain, Marin, Emmanuel, Perisse, Jocelyn, Genot, Jean, Grelin, Jérôme, Hutter, L., Macé, Jean-Reynald, Boukenter, Aziz, Ouerdane, Youcef, Cadier, Benoit, iXBlue Photonics, Fraunhofer Institute for Technological Trend Analysis (Fraunhofer INT), Fraunhofer (Fraunhofer-Gesellschaft), Laboratoire Hubert Curien [Saint Etienne] (LHC), Institut d'Optique Graduate School (IOGS)-Université Jean Monnet [Saint-Étienne] (UJM)-Centre National de la Recherche Scientifique (CNRS), AREVA NP, AREVA NP - Centre Technique (FRANCE), Smart Fibres Ltd, and Groupe AREVA

Subjects
OCIS codes: (1200280), [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, (3505610), (2301480)
Abstract

International audience; a radiation resistant temperature measurement chain based on femtosecond laser written FBGs is described. First results confirm a suitable design to withstand foreseen harsh nuclear environment both in term of temperature and cumulated dose

Published
2017

10. Characterization of novel lightweight radiation shielding materials for space applications

Author

Steffens, Michael, Hepp, Felicitas, Höffgen, Stefan, Krzikalla, Phillip, Metzger, Stefan, Pellowski, Frank, Santin, Giovanni, Tighe, Adrian, Weinand, Udo, and Publica

Abstract

Novel materials or multilayers can help to reduce the mass requirement for radiation shielding of electronic components significantly. In this study, potential alternatives to the standard aluminum shielding approach are assessed by Monte Carlo simulations and promising candidates are manufactured and characterized by radiation tests including proton and electron tests. The transmission of energetic protons of up to 39 MeV through the shielding solution was assessed as well as the dose deposited by energetic electrons up to 12 MeV in RADFETs and Alanine dosimeters behind the shield.

Published
2017

19. Near-infrared radiation induced attenuation in nested anti-resonant nodeless fibers.

Author

Medaer SER, Bradley TD, Di Francesca D, Fu Q, Jasion G, Kuhnhenn J, Meroli S, Poletti F, Schmauss B, Taranta A, Vidiajev K, Weinand U, Wheeler NV, Wolf R, and Ricci D

Abstract

This Letter reports the first, to the best of our knowledge, spectral radiation induced attenuation (RIA) measurements of nested anti-resonant nodeless hollow-core fibers (NANFs). A 5-tube NANF, alongside a solid-core single-mode radiation resistant fiber (SM-RRF), was irradiated under γ-ray up to 101 kGy (SiO 2 ) and under x-ray up to 241 kGy (SiO 2 ). No RIA was observed in the NANF in the second half of the O-band, the S-band, the C-band, and the L-band. The NANF showed a reduction of absorption bands associated with water and HCl under irradiation. Three new attenuation peaks were radiolytically induced and are attributed to the creation of HNO 3 . These peaks are centered respectively at 1441 nm, 1532 nm, and 1628 nm, with a full width at half maximum (FWHM) of, respectively, 10 nm, 12 nm, and 12 nm. These results demonstrate that the wide bandwidth range of NANFs is essentially unaffected by radiation, but the internal gas contents of the NANF must be managed to avoid producing undesirable spectral features through radiolytic reactions. Wide spectral regions almost unaffected by the ionizing radiation could open new possibilities for the use of NANF in harsh radiation environments.

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results