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Pyridinium chloride
No full textInelastic Neutron Scattering spectrum of Pyridinium chloride, C₅H₆ClN, measured on the TFXA instrument
Iodomethane-D3
No full textInelastic Neutron Scattering spectrum of Iodomethane-D3, CD₃I, measured on the TOSCA instrument
6-Azauracil D2O
No full textInelastic Neutron Scattering spectrum of 6-Azauracil D2O, C3H3N3O2.D2O, measured on the TOSCA-1 instrument
p-Bromobenzoic acid
No full textInelastic Neutron Scattering spectrum of p-Bromobenzoic acid, Br-C₆H₄-CO₂H, measured on the TFXA instrument
Methoxyethanol
No full textInelastic Neutron Scattering spectrum of Methoxyethanol, CH₃OCH₂CH₂OH, measured on the TFXA instrument
Optical polarimetry measurements for diagnosing Magnetic fields
No full textThe data in here were obtained in 2011 from a Vulcan TAP experiment dedicated to measure magnetic fields at the rear of plastic targets using optical polarimetry. Details are given in the paper titled "Micron-scale mapping of megagauss magnetic fields using optical polarimetry to probe hot electron transport in petawatt-class laser-solid interactions" DOI : 10.1038/s41598-017-08619-1, SREP-16-47342. The data in here contain the raw CCD images that were used to generate the magnetic field profiles in Fig.2 in the publication. These are the measurements of the three Stokes parameters (I0 - the total transmission, I1, the parallel polarization component and I2, the perpendicular polarization component) of the reflected light from the target rear. Measurements were done with 3 calibrated optical CCD cameras. The camera settings are provided in the excel sheet. The method of calculating magnetic fields from the Stokes parameters is mentioned in the document. A matlab code developed internally was used for computations. The files here contain the Stoke parameters at three delays: (1) a negative delay where the reflected probe comes before the pump pulse, (2) probe incident 5 ps after the pump and (3) probe incident 10 ps after the pump. The files are named as "120701_5ps_I0", "120803_10ps_I1" etc, where "5ps", "10ps" etc. denote the time-delay (and therefore correspond to Fig. 2b, Fig. 2c etc. in the manuscript respectively) and I0, I1 etc denote the Stokes' components (as described in the Methods section). It was confirmed that I1^2+I2^2+I3^2=I0^2.
Pixel-by-pixel calculation of the ellipticity was performed, detailed in the Methods section, and the magnetic field was calculated as described in "Magnetic field measurements.pdf".EPSRC-Fusion Doctoral Training Network
EP/J003832/1
MiUR PRIN-2012AY5LEL
STFC (CLF) Newton-Bhabha Fund
Ammonium sulfamate
No full textInelastic Neutron Scattering spectrum of Ammonium sulfamate, NH₄SO₃NH₂, measured on the TFXA instrument
Pentacene-5,7,12,14-tetraone
No full textInelastic Neutron Scattering spectrum of Pentacene-5,7,12,14-tetraone, C₂₂H₁₀O₄, measured on the TOSCA instrument
Magnesium amide
No full textInelastic Neutron Scattering spectrum of Magnesium amide, Mg(NH₂)₂, measured on the TOSCA instrument
Escaping Electron from Intense Laser-Solid Interactions as a Function of Laser Spot Size
No full textA high powered laser was defocused to observe the effect that this has on the escaping electron population.
The data was recorded on Image plate and saved as a .Fit file. Analysis of the diagnostic was conducted using GEANT4 and PIC simulations regarding the self-focusing of the laser on the front surface were also done.
Here is the abstract:
The interaction of a high-intensity laser with a solid target produces a high-energy distribution of electrons that pass into the target. These electrons reach the rear surface of the target that creates strong electric potentials that restrict the escape of many of the electrons. The measurement of the angle, flux and spectra of the electrons that do escape is able to give insights to the initial interaction. Here, the escaping electrons have been measured from interactions with intensities from 〖10〗^(17-20) W/cm2, where the intensity has been reduced by increasing the size of the focal spot. A curved diagnostic with multiple layers of differentially filtered image plate measures the escaping electrons from the target. An increase in electron flux is observed at an intensity of which corresponds to a defocus of 100 µm. The peak temperature of the electron distribution is also calculated and found to be relatively constant as a function of laser spot size