Development of a short duration backlit pinhole for radiography on the National Ignition Facility

作者：Huntington C M^*; Krauland C M; Kuranz C C; Drake R P; Park H S; Kalantar D H; Maddox B R; Remington B A; Kline J

来源：Review of Scientific Instruments, 2010, 81(10): 10E536.

DOI：10.1063/1.3496984

Experiments on the National Ignition Facility (NIF) will require bright, short duration, near-monochromatic x-ray backlighters for radiographic diagnosis of many high-energy density systems. This paper details a vanadium pinhole backlighter producing (1.8 +/- 0.5) x 10(15) x-ray photons into 4 pi sr near the vanadium He-like characteristic x-ray energy of 5.18 keV. The x-ray yield was quantified from a set of Ross filters imaged to a calibrated image plate, with the Dante diagnostic used to confirm the quasimonochromatic nature of the spectrum produced. Additionally, an x-ray film image shows a source-limited image resolution of 26 mu m from a 20 mu m diameter pinhole.

• 出版日期2010-10