scholarly journals Modeling of Laser-Induced Plasmon Effects in GNS-DLC-Based Material for Application in X-ray Source Array Sensors

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1248
Author(s):  
Alexander N. Yakunin ◽  
Sergey V. Zarkov ◽  
Yuri A. Avetisyan ◽  
Garif G. Akchurin ◽  
Nikolay P. Aban’shin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Current Source ◽  
Scanning Speed ◽  
High Energy ◽  
Localized Surface Plasmon ◽  
X Ray ◽  
The Matrix ◽  
New Material ◽  
X Ray Computed ◽  
Thermal Sources

An important direction in the development of X-ray computed tomography sensors in systems with increased scanning speed and spatial resolution is the creation of an array of miniature current sources. In this paper, we describe a new material based on gold nanostars (GNS) embedded in nanoscale diamond-like carbon (DLC) films (thickness of 20 nm) for constructing a pixel current source with photoinduced electron emission. The effect of localized surface plasmon resonance in GNS on optical properties in the wavelength range from UV to near IR, peculiarities of localization of field and thermal sources, generation of high-energy hot electrons, and mechanisms of their transportation in vacuum are investigated. The advantages of the proposed material and the prospects for using X-ray computed tomography in the matrix source are evaluated.

scholarly journals High Energy X-Ray Computed Tomography for Industrial Applications

2000 ◽  
Vol 20 (1Supplement) ◽  
pp. 361-364
Author(s):  
Shigeru IZUMI ◽  
Hiroshi KAMIMURA ◽  
Hiroshi KITAGUCHI ◽  
Eisaku MIZUFUNE
Keyword(s):  
Computed Tomography ◽  
High Energy ◽  
Industrial Applications ◽  
X Ray ◽  
X Ray Computed

High energy high resolution monochromatic x‐ray computed tomography using the Photon Factory vertical wiggler beamline

1992 ◽  
Vol 63 (1) ◽  
pp. 615-618 ◽  
Author(s):  
Y. Nagata ◽  
H. Yamaji ◽  
K. Hayashi ◽  
K. Kawashima ◽  
K. Hyodo ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
High Energy ◽  
X Ray ◽  
Photon Factory ◽  
X Ray Computed

scholarly journals Low-dose exposure energy-resolved X-ray computed tomography using a contrast agent with a high-energy K-edge

2013 ◽  
Vol 51 (1) ◽  
pp. 91-97 ◽  
Author(s):  
Yoshiki Yamashita ◽  
Kazunari Shima ◽  
Ikuo Kanno ◽  
Masahiko Ohtaka ◽  
Makoto Hashimoto ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Contrast Agent ◽  
Low Dose ◽  
High Energy ◽  
X Ray ◽  
X Ray Computed ◽  
Exposure Energy

Response of silicon detector for high energy X-ray computed tomography

1994 ◽  
Vol 41 (4) ◽  
pp. 999-1003 ◽  
Author(s):  
H. Miyai ◽  
S. Kawasaki ◽  
H. Kitaguchi ◽  
S. Izumi
Keyword(s):  
Computed Tomography ◽  
Silicon Detector ◽  
High Energy ◽  
X Ray ◽  
X Ray Computed

scholarly journals Finding fossils in Malapa breccia – medical CT scanning or micro-CT scanning?

2017 ◽  
Vol 113 (11/12) ◽  
Author(s):  
Jacqueline S. Smilg
Keyword(s):  
Computed Tomography ◽  
Lower Energy ◽  
Ct Scanning ◽  
Cost Effective ◽  
High Energy ◽  
X Rays ◽  
Micro Ct ◽  
X Ray ◽  
Mechanical Preparation ◽  
X Ray Computed

Computed tomography (CT) imaging of fossils has revolutionised the field of palaeontology, allowing researchers to gain a better understanding of fossil anatomy, preservation and conservation. Micro focus X-ray computed tomography (μXCT) has been far more extensively used for these purposes than medical CT (XCT) – mostly because of the exquisite detail that the μXCT scanning modality, using slices of micron thicknesses, can produce. High energy X-rays can potentially penetrate breccia more effectively than lower energy beams. This study demonstrates that lower energy beams produce superior images for prioritising breccia for preparation. Additionally, XCT scanners are numerous, accessible, fast and relatively cost-effective when compared to μXCT scanners – the latter are not freely available, scanning times are much longer and there are significant limitations on the size and weight of scannable objects. Breccia blocks from Malapa were scanned at high and lower energy and images were analysed for image quality, artifact and certainty of diagnosis. Results show that lower energy images are deemed superior to higher energy images for this particular application. This finding, taken together with the limitations associated with the use of μXCT for the imaging of the large breccia from Malapa, shows that XCT is the better modality for this specific application. The ability to choose fossil-bearing breccia, ahead of manual mechanical preparation by laboratory technicians, would allow for the optimal use of limited resources, manual preparatory skills as well as the curtailment of costs.

51473 High energy, high resolution monochromatic x-ray computed tomography system

1994 ◽  
Vol 27 (2) ◽  
pp. 104-105
Author(s):  
Y. Nagata ◽  
H. Yamaji ◽  
K. Hayashi ◽  
K. Kawahima ◽  
K. Hyodo ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
High Energy ◽  
X Ray ◽  
Tomography System ◽  
X Ray Computed

High energy X-ray computed tomography for industrial applications

1993 ◽  
Vol 40 (2) ◽  
pp. 158-161 ◽  
Author(s):  
S. Izumi ◽  
S. Kamata ◽  
K. Satoh ◽  
H. Miyai
Keyword(s):  
Computed Tomography ◽  
High Energy ◽  
Industrial Applications ◽  
X Ray ◽  
X Ray Computed
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