Quick Shot

Shown is Experimental System Technician Dan Neyland changing filtration in front of the charge-injected–device (CID) cameras in the gated monochromatic x-ray imaging (GMXI) diagnostic. Filtration is used to set the level of x rays going to the imaging camera in order to capture data in a specific spectral range with optimal signal-to-noise ratio. The GMXI module, highlighted in red, consists of two rotary stages, each of which positions a crystal turret-framing module pair. The crystal turrets, each containing two crystals, are positioned at the desired Bragg angle (θB), while the framing modules are positioned at the diffracted image plane.