Progress on the Development of a Single Line of Sight X-ray Framing Camera

Conference · Fri Apr 09 04:00:00 EDT 2004

DOI:https://doi.org/10.1063/1.1789607· OSTI ID:892792

Bradley, D; Holder, J; Damian, C; Piston, K; Bell, P; Dymoke-Bradshaw, A; Hares, J

High-speed micro-strip micro-channel plate (MCP) x-ray framing cameras are a well established diagnostic for laser plasma experiments. Each frame acquired with these devices requires a separate image, and with most reasonable x-ray optics, a separate line of sight, causing potential parallax problems. Gated image tubes have a single line of sight capability, but the conventional designs have not been effectively extended to the short gating times of the micro-strip-line MCP camera. A hybrid camera combining image tube and micro-strip-line MCP technology has been under development at LLNL in collaboration with UR/LLE, and KENTECH Instruments. The key feature of this single line of sight (SLOS) hybrid image tube is a deflection assembly that continuously divides the electrons from a single photocathode x-ray image into a set of four electron images. Temporal gating of these images is carried out using a microstripline microchannel plate framing camera module positioned at the image plane of the electron tube. Characterization measurements performed using both X-rays from a Manson source and from laser generated plasmas, will be presented. Some implementation improvements will be discussed. The results will be compared to simulations carried out using the charged particle optics code SIMION. Various dissector designs were simulated in an effort to improve the image quality of the system.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 892792
• Report Number(s): UCRL-CONF-203591
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
47 OTHER INSTRUMENTATION
CAMERAS
CHARGED PARTICLES
ELECTRON TUBES
ELECTRONS
IMAGE TUBES
IMPLEMENTATION
LASERS
LAWRENCE LIVERMORE NATIONAL LABORATORY
OPTICS
PHOTOCATHODES
PLASMA DIAGNOSTICS