Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Pierre Bastie"'
Autor:
Peter von Ballmoos, Nicolas M. Barrière, G. Roudil, Colin Wade, Lorraine Hanlon, Pierre Bastie, Gerard Fitzpatrick, Michael Jentschel
Publikováno v:
Journal of Applied Crystallography. 49:606-615
The Laue lens is an emerging technology that uses crystal diffraction to concentrate gamma-rays. The Darwin model describes diffraction in mosaic crystals at high energies (>50 keV) and is the basis for assessing the throughput of a Laue lens. While
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10a0a0c627dc563ca4f5b77a7b13040f
https://doi.org/10.1107/s1600576716002880
https://doi.org/10.1107/s1600576716002880
Autor:
P. von Ballmoos, Nicolas M. Barrière, P. Courtois, Julien Rousselle, G. Roudil, Nickolay Abrosimov, Lorenzo Natalucci, Pierre Bastie, Michael Jentschel
Publikováno v:
International Conference on Space Optics — ICSO 2008.
The development of a Laue lens to focus soft gamma rays appears today as the only solution to improve significantly telescopes’ sensitivity and angular resolution in the 100 keV – 1 MeV domain. A Laue lens makes use of diffraction in the volume o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44fb89c7169c9e79163f9cd10cbfd050
https://doi.org/10.1117/12.2308289
https://doi.org/10.1117/12.2308289
Publikováno v:
Materials Science Forum. :2075-2080
We present a computer inexpensive method to calculate the profile of the high resolution diffraction pattern of a single crystal superalloy. The displacement field is taken as the sum of the individual fields of cuboidal inclusions with uniform eigen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ef0e9384bb23e6cb58e06c904d8ebc2
https://doi.org/10.4028/www.scientific.net/msf.783-786.2075
https://doi.org/10.4028/www.scientific.net/msf.783-786.2075
Publikováno v:
Materials Science Forum. :789-794
The shape of the diffraction peaks of a single crystal superalloy measured by Three Crystal Diffractometry changes during a creep test. We show that these variations are directly linked to the strain and dislocation density within the γ’ phase.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e44e444181847e4c5e1bd66c77943854
https://doi.org/10.4028/www.scientific.net/msf.783-786.789
https://doi.org/10.4028/www.scientific.net/msf.783-786.789
Autor:
Valerio Bellucci, Gianfranco Paternò, Vincenzo Guidi, Pierre Bastie, Riccardo Camattari, Alessandro Battelli
Publikováno v:
Journal of Applied Crystallography. 47:799-802
A germanium crystal was bent through a grid of superficial grooves, manufactured on the sample surface. The resulting diffraction planes were bent thanks to quasi-mosaicity, which is an effect of mechanical anisotropy in crystals. High integrated dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d31838135343bd29b63567ddf97d02a
https://doi.org/10.1107/s1600576714005056
https://doi.org/10.1107/s1600576714005056
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 300:6-10
A method to acquire three dimensional diffraction data and orientation mapping with the 2D imaging setup of Hasylab beamline G3 is presented. The method has been successfully applied to undeformed large grains extracted from ice samples and extended
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1223b4bcf629814bc5efdaecb31521f
https://doi.org/10.1016/j.nimb.2013.01.042
https://doi.org/10.1016/j.nimb.2013.01.042
Publikováno v:
Advanced Materials Research. 278:37-41
One of the major ingredients of modelling the mechanical behaviour of superalloys is the knowledge of dislocation densities and strain distribution. Both can be measured using post mortem BF TEM and CBED, but such methods do not allow following their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f5b9efe99ac61d24aca16b546a64817
https://doi.org/10.4028/www.scientific.net/amr.278.37
https://doi.org/10.4028/www.scientific.net/amr.278.37
Publikováno v:
Advanced Materials Research. 278:48-53
The combination of high temperature (1050°C -1150°C) testing and in situ high energy X-Ray diffraction measurements using synchrotron Three Crystal Diffractometry may give various insights into the mechanical behaviour of superalloys: measurement o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9674fd7a1141e78fdecf42e259bfb04e
https://doi.org/10.4028/www.scientific.net/amr.278.48
https://doi.org/10.4028/www.scientific.net/amr.278.48
Autor:
P. Courtois, G. Roudil, T. Camus, Nickolay Abrosimov, Julien Rousselle, P. von Ballmoos, Michael Jentschel, Pierre Bastie, Lorenzo Natalucci, Nicolas M. Barrière, Jürgen Knödlseder, C. B. Wunderer, Vladimir N. Kurlov
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 610:283-286
Nuclear astrophysics presents an extraordinary scientific potential for the study of the most powerful sources and the most violent events in the Universe. But in order to take full advantage of this potential, telescopes should be at least an order
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a10d29eeb5322538b4748a6cb3befdf4
https://doi.org/10.1016/j.nima.2009.05.133
https://doi.org/10.1016/j.nima.2009.05.133
Autor:
Lorenzo Natalucci, T. Camus, Vladimir N. Kurlov, Nikolai V. Abrosimov, Pierre Bastie, Michael Jentschel, Peter von Ballmoos, Nicolas M. Barrière, Nicolai Frisch Brejnholt, G. Roudil, Julien Rousselle, Denis Serre, P. Courtois
Publikováno v:
Journal of Applied Crystallography. 42:834-845
Crystals are the elementary constituents of Laue lenses, an emerging technology which could allow the realization of a space-borne telescope 10–100 times more sensitive than existing ones, in the 100 keV–1.5 MeV energy range. This paper addresses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43c50e364ac842afb7e68fbcc5792ce9
https://doi.org/10.1107/s0021889809023218
https://doi.org/10.1107/s0021889809023218