N
Nicolai Brejnholt
Researcher at Lawrence Livermore National Laboratory
Publications - 35
Citations - 4151
Nicolai Brejnholt is an academic researcher from Lawrence Livermore National Laboratory. The author has contributed to research in topics: Telescope & X-ray optics. The author has an hindex of 14, co-authored 35 publications receiving 3784 citations. Previous affiliations of Nicolai Brejnholt include Technical University of Denmark.
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Proceedings ArticleDOI
Rapid and accurate assembly method for a new Laue lens prototype
Colin Wade,Nicolas M. Barrière,Lorraine Hanlon,Steven E. Boggs,Nicolai Brejnholt,Sonny Massahi,John A. Tomsick,Peter von Ballmoos +7 more
TL;DR: The Laue lens as discussed by the authors is a technology for gamma-ray astrophysics whereby gamma-rays of particular energies can be focused by a suitable arrangement of crystals, which can be found in the Laue Lens assembly station at UC Berkeley.
Journal ArticleDOI
Characterization and simulation of soft gamma-ray mirrors for their use with spent fuel rods at reprocessing facilities.
J. Ruz,Marie-Anne Descalle,Jennifer B. Alameda,Nicolai Brejnholt,D. L. Chichester,Todd A. Decker,Mónica Fernández-Perea,R. M. Hill,Roger A. Kisner,Alexander M. Melin,B. W. Patton,Regina Soufli,H. Trellue,Scott M. Watson,K.P. Ziock,M. J. Pivovaroff +15 more
TL;DR: 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.
Proceedings ArticleDOI
Recent results and future plans for a 45 actuator adaptive x-ray optics experiment at the advanced light source
Nicolai Brejnholt,Lisa Poyneer,Randal M. Hill,Tommaso Pardini,Lisle B. Hagler,Jessie Jackson,Jae Jeon,Thomas McCarville,David Palmer,Richard Celestre,Audrey Brooks +10 more
TL;DR: The Adaptive X-ray Optics (AXO) project at the Advanced Light Source (ALS) as mentioned in this paper was the first to demonstrate a near real-time adaptive X ray optic.
Proceedings ArticleDOI
The Hitomi (ASTRO-H) Soft X-ray Telescope (SXT): current status of calibration
Yoshitomo Maeda,Naomichi Kikuchi,Sho Kurashima,Manabu Ishida,Ryo Iizuka,Takayuki Hayashi,Takayuki Hayashi,Takashi Okajima,Hironori Matsumoto,Ikuyuki Mitsuishi,Shigetaka Saji,Toshiki Sato,Sasagu Tachibana,Hideyuki Mori,Finn Erland Christensen,Nicolai Brejnholt,Kiyofumi Nitta,Tomoya Uruga +17 more
TL;DR: In this article, the atomic scattering factor in the 11.2-15.4 keV band with the energy pitch of 0.4-0.7 eV was obtained by the curve fitting to the reflectivities of a witness sample.
Proceedings ArticleDOI
In-depth calibration of a Laue lens prototype composed of Fe and Al mosaic crystals
Colin Wade,Nicolas M. Barrière,John A. Tomsick,Lorraine Hanlon,Steven E. Boggs,Nicolai Brejnholt,Sonny Massahi,Peter von Ballmoos +7 more
TL;DR: The Laue lens as mentioned in this paper is a developing technology for focusing soft gamma-rays, that is based on the principle of Bragg diffraction, and a suitable arrangement of diffracting crystals is used to concentrate a set of parallel incoming photons onto a common focal spot.