Title :
Delay line readout of microchannel plates
Author :
Sobottka, Stanley E. ; Williams, Mark B.
Author_Institution :
Dept. of Phys., Virginia Univ., Charlottesville, VA, USA
Abstract :
A two-dimensional delay line readout to be used with large-diameter (127-mm) microchannel plates (MCPs) has been developed. High spatial resolutions (25 mu m FWHM for an MCP gain of 2*10/sup 7/) and excellent linearity of position readout (less than +or-65- mu m deviation from linearity) have been achieved in a test setup using 30-mm-diameter MCPs coupled to 140-mm*140-mm delay lines. Single-pass delays of only 176 ns allow system deadtimes of less than 1 mu s. This type of readout will be applied to imaging X-ray detectors to be used in protein crystallography.<>
Keywords :
delay lines; electron multipliers; image intensifiers; phototubes; 1 mus; 176 ns; 25 mum; 30 mm; deadtimes; delay line readout; imaging X-ray detectors; microchannel plates; position readout; protein crystallography; spatial resolutions; Delay lines; Insulation; Linearity; Microchannel; Optical imaging; Proteins; Spatial resolution; Wounds; X-ray detectors; X-ray imaging;
Journal_Title :
Nuclear Science, IEEE Transactions on
