Dynamic x-ray detectors for high-energy-density experiments in high density

2021 ◽  
Author(s):  
Sabrina R. Nagel
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Density ◽  
High Energy Density ◽  
X Ray

scholarly journals Nitrogen-Rich Carbon Nitrides as Novel High Energy Density Materials

2014 ◽  
Vol 70 (a1) ◽  
pp. C758-C758
Author(s):  
Dominique Laniel ◽  
Elena Sebastiao ◽  
Cyril Cook ◽  
Muralee Murugesu ◽  
Serge Desgreniers
Keyword(s):  
Raman Spectroscopy ◽  
Energy Density ◽  
Energetic Materials ◽  
Hexagonal Lattice ◽  
High Energy ◽  
Unit Cell ◽  
High Density ◽  
High Energy Density ◽  
X Ray Diffraction ◽  
X Ray

Nitrogen-rich carbon nitride materials hold the promise of constituting novel high density energetic materials if recoverable as metastable polymeric networks of single-bonded atoms at ambient conditions. Upon transition to a lowest-energy configuration, this high pressure synthesized nitrogen-heavy material would release a large amount of energy. In this work, two nitrogen-rich molecular precursors, namely, 5'-bis(1H-tetrazolyl)amine (BTA) and cyanuric triazide (CTA), were studied in their condensed states at elevated pressures and room temperature. Powder x-ray diffraction using synchrotron radiation and micro-Raman spectroscopy were carried out to pressures as high as 12.9 and 59.6 GPa, for BTA and CTA, respectively. In our study, dense BTA is shown to conserve its room condition crystalline structure, an orthorhombic unit cell (Pbca), up to the highest pressure. In the case of CTA, results of Raman spectroscopy and x-ray diffraction indicate structural changes between 29.6 and 33.4 GPa. From numerical simulations of dense CTA [1], a phase transition into either tritetrazole (hexagonal lattice, P-6) or the sought-after polymeric CTA (monoclinic lattice, P21) is expected to take place at a pressure close to 30 GPa. Preliminary results of x-ray diffraction data indicate a transition from a hexagonal to a monoclinic unit cell with parameters similar to those predicted. Moreover, theoretically calculated polymeric nitrogen Raman peaks [2] are well matched to those observed for the high-density phase of CTA [1]. Studies of BTA and CTA under extreme conditions provide a deeper understanding of the behaviour of dense nitrogen-rich materials and guidance for further developments of high energy density compounds.

scholarly journals Demonstration of Geometric Effects and Resonant Scattering in the X-Ray Spectra of High-Energy-Density Plasmas

2021 ◽  
Vol 126 (8) ◽  
Author(s):  
G. Pérez-Callejo ◽  
E. V. Marley ◽  
D. A. Liedahl ◽  
L. C. Jarrott ◽  
G. E. Kemp ◽  
...  
Keyword(s):  
Energy Density ◽  
Resonant Scattering ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
High Energy Density Plasmas ◽  
Geometric Effects

Mirror to measure small angle x-ray scattering signal in high energy density experiments

2020 ◽  
Vol 91 (12) ◽  
pp. 123501
Author(s):  
M. Šmíd ◽  
C. Baehtz ◽  
A. Pelka ◽  
A. Laso García ◽  
S. Göde ◽  
...  
Keyword(s):  
Energy Density ◽  
Small Angle ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Signal ◽  
Ray Scattering

scholarly journals Imaging at an x-ray absorption edge using free electron laser pulses for interface dynamics in high energy density systems

2017 ◽  
Vol 88 (5) ◽  
pp. 053501 ◽  
Author(s):  
M. A. Beckwith ◽  
S. Jiang ◽  
A. Schropp ◽  
A. Fernandez-Pañella ◽  
H. G. Rinderknecht ◽  
...  
Keyword(s):  
Energy Density ◽  
Absorption Edge ◽  
Free Electron ◽  
Free Electron Laser ◽  
Laser Pulses ◽  
High Energy ◽  
High Energy Density ◽  
Interface Dynamics ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Characterization of Advanced High-Energy Density Li-S Batteries by FE-AEM, SEM/EDS X-ray Spectral Imaging and Feature Sizing/Chemical Typing Techniques

2009 ◽  
Vol 15 (S2) ◽  
pp. 1398-1399 ◽  
Author(s):  
VP Oleshko ◽  
C Scordilis-Kelley ◽  
A Xiao ◽  
J Affinito ◽  
Y Talyossef ◽  
...  
Keyword(s):  
Energy Density ◽  
Spectral Imaging ◽  
High Energy ◽  
High Energy Density ◽  
X Ray

Extended abstract of a paper presented at Microscopy and Microanalysis 2009 in Richmond, Virginia, USA, July 26 – July 30, 2009

Revealing the charge/discharge mechanism of Na–O2 cells by in situ soft X-ray absorption spectroscopy

2018 ◽  
Vol 11 (8) ◽  
pp. 2073-2077 ◽  
Author(s):  
Mohammad N. Banis ◽  
Hossein Yadegari ◽  
Qian Sun ◽  
Tom Regier ◽  
Teak Boyko ◽  
...  
Keyword(s):  
Energy Density ◽  
Absorption Spectroscopy ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
Discharge Mechanism ◽  
X Ray Absorption ◽  
Charge Discharge

Developing high energy density batteries, such as metal–air systems, requires a good understanding of their underlying electrochemical principles.

scholarly journals Editors’ Choice—4D Neutron and X-ray Tomography Studies of High Energy Density Primary Batteries: Part II. Multi-Modal Microscopy of LiSOCl2 Cells

2020 ◽  
Vol 167 (14) ◽  
pp. 140509
Author(s):  
Ralf F. Ziesche ◽  
James B. Robinson ◽  
Henning Markötter ◽  
Robert Bradbury ◽  
Alessandro Tengattini ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
X Ray
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