AI Article Synopsis

  • A high-resolution x-ray spectrometer and an ultrafast x-ray streak camera were used to capture time-resolved line shape spectra from hot, solid-density plasmas.
  • A Bragg crystal was strategically placed to enhance data collection, and alignment tolerances were determined through ray tracing techniques.
  • The resulting streaked spectra provide valuable insights into the temporal evolution of plasma features on picosecond timescales, indicating the potential for precise measurement of plasma parameters in high-energy-density conditions.

Article Abstract

A high-resolution x-ray spectrometer was coupled with an ultrafast x-ray streak camera to produce time-resolved line shape spectra measured from hot, solid-density plasmas. A Bragg crystal was placed near laser-produced plasma to maximize throughput; alignment tolerances were established by ray tracing. The streak camera produced single-shot, time-resolved spectra, heavily sloped due to photon time-of-flight differences, with sufficient reproducibility to accumulate photon statistics. The images are time-calibrated by the slope of streaked spectra and dewarped to generate spectra emitted at different times defined at the source. The streaked spectra demonstrate the evolution of spectral shoulders and other features on ps timescales, showing the feasibility of plasma parameter measurements on the rapid timescales necessary to study high-energy-density plasmas.

Download full-text PDF

Source
http://dx.doi.org/10.1063/5.0101853DOI Listing

Publication Analysis

Top Keywords

streak camera
8
streaked spectra
8
spectra
5
streaked sub-ps-resolution
4
sub-ps-resolution x-ray
4
x-ray shapes
4
shapes implications
4
implications solid-density
4
solid-density plasma
4
plasma dynamics
4

Similar Publications

A method of acquiring sequentially time-resolved two-dimensional images with parallel multi-group sampling strategy has been developed. In this technique, the two-dimensional image was sampled and transferred by a fiber bundle, the fibers of which were arranged in two-dimensional arrays in the input end and rearranged in four one dimensional lines in the output end. The output four groups of one-dimensional images were parallelly detected by a streak camera.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigated how the structure and dynamics of electrolyte solutions affect ionic conductivity by measuring conductivity, viscosity, and dielectric relaxation in lithium bis(trifluoromethane)sulfonimide (LiTFSI) in triglyme.
  • Findings revealed that conductivity (σ) and dielectric relaxation times (⟨τ⟩) are somewhat independent of viscosity (η) and follow specific proportional relationships.
  • Additionally, Raman spectroscopy showed ion pair formation and an increase in glass transition temperature with LiTFSI concentration, highlighting interesting dependencies of conductivity on solution properties that could inform battery applications.
View Article and Find Full Text PDF

Rain streaks pose a significant challenge to optical devices, impeding their ability to accurately recognize objects in images. To enhance the recognition capabilities of these devices, it is imperative to remove rain streaks from images prior to processing. While deep learning techniques have been adept at removing rain from the high-frequency components of images, they often neglect the low-frequency components, where residual rain streaks can persist.

View Article and Find Full Text PDF

Micropinch formation dynamics in X pinches.

Phys Rev E

September 2024

School of Electrical and Computer Engineering (ECE), Cornell University, 439 Rhodes Hall, Ithaca, New York 14853, United States of America.

High temporal resolution x-ray streak camera studies of micropinch formation in Cu hybrid x pinches reveal key plasma conditions. Analysis of Ne-like Cu lines indicate an average electron temperature of about 200 eV and 4.5×10^{28}m^{-3} electron density.

View Article and Find Full Text PDF

Modifying x-ray streak cameras for operation on igniting fusion experiments.

Rev Sci Instrum

October 2024

Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

The National Ignition Facility produced the first nuclear fusion experiment demonstrating net positive energy gain on December 5, 2022. The x-ray streak camera that measures the bang time and burn-width from this landmark experiment had an electronic failure and did not record data. The CCD sensor was replaced with a radiation hardened CMOS sensor that has since demonstrated successful operation on repeat ignition shots.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!