Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Nicolai Brejnholt"'
Autor:
Farhad Salmassi, Franck Delmotte, David Girou, Julia Meyer-Ilse, Nicolai Brejnholt, Sonny Massahi, Eric M. Gullikson, Regina Soufli, Finn Erland Christensen
Publikováno v:
Journal of Applied Physics
Journal of Applied Physics, American Institute of Physics, 2019, 125 (8), pp.085106. ⟨10.1063/1.5067366⟩
Soufli, R, Delmotte, F, Meyer-Ilse, J, Salmassi, F, Brejnholt, N, Massahi, S, Girou, D, Christensen, F & Gullikson, E M 2019, ' Optical constants of magnetron sputtered Pt thin films with improved accuracy in the N-and O-electronic shell absorption regions ', Journal of Applied Physics, vol. 125, no. 8, 085106 . https://doi.org/10.1063/1.5067366
Journal of Applied Physics, American Institute of Physics, 2019, 125 (8), pp.085106. ⟨10.1063/1.5067366⟩
Soufli, R, Delmotte, F, Meyer-Ilse, J, Salmassi, F, Brejnholt, N, Massahi, S, Girou, D, Christensen, F & Gullikson, E M 2019, ' Optical constants of magnetron sputtered Pt thin films with improved accuracy in the N-and O-electronic shell absorption regions ', Journal of Applied Physics, vol. 125, no. 8, 085106 . https://doi.org/10.1063/1.5067366
We present an experimental, self-consistent determination of the optical constants (refractive index) of Pt using a combination of photoabsorption and reflectance data in the photon energy range 25–778 eV, which includes the N- and O-shell electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83f6e3ad195067cbb661048a4bfd051b
https://hal-iogs.archives-ouvertes.fr/hal-03349801
https://hal-iogs.archives-ouvertes.fr/hal-03349801
Autor:
Mónica Fernández-Perea, K.P. Ziock, Roger A. Kisner, Alexander M. Melin, M. J. Pivovaroff, R. M. Hill, Regina Soufli, Marie-Anne Descalle, J. Ruz, Todd A. Decker, Jennifer B. Alameda, B. W. Patton, Nicolai Brejnholt
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 777:15-19
Direct measurement of plutonium and uranium X-rays and gamma-rays is a highly desirable non-destructive analysis method for the use in reprocessing fuel environments. The high background and intense radiation from spent fuel make direct measurements
Autor:
Jeff C. Robinson, J. Dreyer, Scott M. Watson, M. J. Pivovaroff, J. Ruz-Armendariz, Marie-Anne Descalle, Regina Soufli, H. Trellue, D. L. Chichester, T. Decker, Nicolai Brejnholt, K.P. Ziock, Jennifer B. Alameda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b497c585ae3420eea4d0825fa0b086f7
https://doi.org/10.2172/1404864
https://doi.org/10.2172/1404864
Autor:
Sasagu Tachibana, Kiyofumi Nitta, Takayuki Hayashi, Takashi Okajima, Toshiki Sato, Tomoya Uruga, Sho Kurashima, Nicolai Brejnholt, Ryo Iizuka, Shigetaka Saji, Naomichi Kikuchi, Yoshitomo Maeda, Finn Erland Christensen, Manabu Ishida, Ikuyuki Mitsuishi, Hironori Matsumoto, Hideyuki Mori
Publikováno v:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII.
We report the atomic scattering factor in the 11.2–15.4 keV for the ASTRO-H Soft X-ray Telescope (SXT)9 obtained in the ground based measurements. The large effective area of the SXT covers above 10 keV. In fact, the flight data show the spectra of
Autor:
T. McCarville, T. Pardini, Louisa Pickworth, Stefan P. Hau-Riege, Justin Buscho, T. Decker, Julia Vogel, J. Ayers, Perry M. Bell, D. K. Bradley, Nicolai Brejnholt, Christopher C. Walton, J. D. Kilkenny
Publikováno v:
The Review of scientific instruments. 87(11)
Current two-dimensional X-ray imaging at the National Ignition Facility (NIF) uses time resolved pinhole cameras with ∼10-25 μm pinholes. This method has limitations in the smallest resolvable features that can be imaged with reasonable photon sta
Autor:
Colin Wade, Lorraine Hanlon, John A. Tomsick, Steven E. Boggs, Peter von Ballmoos, Nicolai Brejnholt, Nicolas M. Barrière, Sonny Massahi
Publikováno v:
SPIE Proceedings.
The Laue lens is a developing technology for focusing soft gamma-rays, that is based on the principle of Bragg diffraction. A suitable arrangement of diffracting crystals is used to concentrate a set of parallel incoming photons onto a common focal s
Autor:
Marie-Anne Descalle, D. L. Chichester, K.P. Ziock, Regina Soufli, H. Trellue, M. J. Pivovaroff, Nicolai Brejnholt, Todd A. Decker, Scott M. Watson, Roger A. Kisner, B. W. Patton, Jennifer B. Alameda, J. Ruz, R. M. Hill, Alexander M. Melin, Mónica Fernández-Perea
Publikováno v:
Applied optics. 55(16)
The use of a grazing incidence optic to selectively reflect K-shell fluorescence emission and isotope-specific lines from special nuclear materials is a highly desirable nondestructive analysis method for use in reprocessing fuel environments. Prelim
Autor:
Sasagu Tachibana, Sho Kurashima, Hironori Matsumoto, Naomichi Kikuchi, Ryo Iizuka, Manabu Ishida, Kiyofumi Nitta, Shigetaka Saji, Yoshitomo Maeda, Takashi Okajima, Hideyuki Mori, Toshiki Sato, Takayuki Hayashi, Nicolai Brejnholt, Finn Erland Christensen, Tomoya Uruga, Ikuyuki Mitsuishi
Publikováno v:
SPIE Proceedings.
The X-ray astronomy satellite ASTRO-H are equipped with two equivalent soft X-ray telescopes (SXT-I and SXT-S) which cover the energy band 0.3-12 keV. The X-ray reflectors of the SXTs are coated with a gold monolayer by means of the replication techn
Autor:
Regina Soufli, Marie-Anne Descalle, T. Decker, T. Pardini, Nicolai Brejnholt, R. M. Hill, Jennifer B. Alameda, M. J. Pivovaroff
Research performed under this LDRD aimed to demonstrate the ability to detect and measure hard X-ray emissions using multilayer X-ray reflective optics above 400 keV, to enable the development of inexpensive and high-accuracy mirror substrates, and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bb4db6f33afe259802e4e769027e705
https://doi.org/10.2172/1237572
https://doi.org/10.2172/1237572
Autor:
Thomas McCarville, Jae Jeon, Randal M. Hill, Jessie Jackson, Lisa Poyneer, Tommaso Pardini, Lisle B. Hagler, David Palmer, Richard Celestre, Audrey Brooks, Nicolai Brejnholt
Publikováno v:
AIP Conference Proceedings.
We report on the current status of the Adaptive X-ray Optics project run by Lawrence Livermore National Laboratory (LLNL). LLNL is collaborating with the Advanced Light Source (ALS) to demonstrate a near real-time adaptive X-ray optic. To this end, a