| Budget Amount *help |
¥12,800,000 (Direct Cost: ¥12,800,000)
Fiscal Year 2006: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2005: ¥10,200,000 (Direct Cost: ¥10,200,000)
|
|---|
| Research Abstract |
We have developed the Pilatus-II single-module pixel detector in collaboration with the Paul Scherrer Institute. A module has a single, continuously sensitive, 300 um thick silicon sensor, which absorbs 75 % incoming X-ray radiation at a typical wave length of 1 angstrom. The active area is 33.54x83.764mm^2 with 195x487=94,965 pixels. The pixel size is 172 um. A PILATUS-II readout chip with 60 x 97 pixels in the UMC 0.25 μm COMS process has been developed. An array of 2 x 8 readout chips is indium bump-bonded to the sensor. Each pixel contains a charge-sensitive amplifier, a single level discriminator and a 20-bit counter. An individual pixel is thus capable of being operated in a single photon counting mode.
The pixel detector has been applied for SPring-8 user applications at BL19LXU (X-ray Diffraction combining under pulsed magnetic field ), BL46XU (In-situ observation of microstructure formation process of weld metals by time-resolved X-ray diffraction ), BLO1B1 (Fluorescent XAFS), BLO2B1 (Time-resolved X-ray diffraction of current-piezoelectricity in an organic crystal) and so on. These novel methodological studies have been talked as the title of "Methodological Study of a Single Photon Counting Pixel Detector at SPring-8"in SRI2006 (Deagu, EXCO, Korea, May 28・June 2, 2006), "A single photon counting pixel detector system for synchrotron radiation applications" in STD6 (Carmel Mission Inn, California, September 11-15, 2006), "A single photon counting 2-D detector PILATUS" in JSR07 (Hiroshima, January 12-14, 2007).
|
