Imaging of laser–plasma x-ray emission with charge-injection devices

Abstract

This work details the method of obtaining time-integrated images of laser-plasma x-ray emission using charge-injection devices ͑CIDs͒, as has been demonstrated on the University of Rochester's 60-beam UV OMEGA laser facility ͓T. R. Boehly et al., Opt. Commun. 133, 495 ͑1997͔͒. The CID has an architecture similar to a charge-coupled device. The differences make them more resistant to radiation damage and, therefore, more appropriate for some application in laser-plasma x-ray imaging. CID-recorded images have been obtained with x-ray pinhole cameras, x-ray microscopes, x-ray spectrometers, and monochromatic x-ray imaging systems. Simultaneous images obtained on these systems with calibrated x-ray film have enabled determination of the absolute detection efficiency of the CIDs in the energy range from 2 to 8 keV.

Impact of extended preplasma on energy coupling in kilojoule energy relativistic laser interaction with cone wire targets relevant to fast ignition

“…X-ray attenuation in the Cu wire was taken into account in analysis of the data. In addition, thermal plasma emission inside the cone was monitored with a time-integrated x-ray pinhole camera [27], and the spectrum of electrons escaping along the wire axis was measured with an electron spectrometer [28].…”

Extreme Contrast Ratio Imaging of Sirius with a Charge Injection Device

“…The generated charge, now under the sense node, is then Due to the field oxide, the readout architecture, and the nature of the underlying charge collection architecture, CIDs are inherently anti-blooming. CIDs are also well suited to space; they are remarkably resistant to gamma rays and neutrons (e.g., Marshall et al 2001) and have radiation tolerance past 5 Mrad (Bhaskaran et al 2008). In addition, CIDs use NDROs that minimize the effects of cosmic rays because count rates are monitored and radiation events are removed from the final photon flux.…”

Multispectral x-ray imaging with a pinhole array and a flat Bragg mirror

“…We designed the instrument to have high sensitivity by moving the pinhole and The detector is a time-integrated charge injection device (CID) x-ray detector with a pixel size of 40 µm and an image area of 24 x 36 mm [14]. This detector is convenient, sensitive, and relatively large, but it does not provide time resolution.…”