The application of the pinhole camera with large dynamitic range on the laser focal spot diagnose in the ICF experiment

The X ray pinhole camera as a primary diagnostic equipment has played an important role in the SGIII prototype experiment. A new method based on the 4 × 4 multiple pinhole array plate is introduced. The multiple pinhole array plate has the following advantage: large dynamitic range, large field of view, aiming to light simple and accurate, fewer filter replacing number. At the same time the data acquisition rate improve greatly in the prototype experiments. (authors)