Home > Publications database > The LAMBDA Photon-Counting Pixel Detector and High-Z Sensor Development |
Contribution to a conference proceedings/Journal Article | PUBDB-2015-01213 |
; ; ; ; ; ; ; ; ; ;
2014
Inst. of Physics
London
This record in other databases:
Please use a persistent id in citations: doi:10.1088/1748-0221/9/12/C12026
Abstract: Many X-ray experiments at third-generation synchrotrons benefit from using single-photon-counting detectors, due to their high signal-to-noise ratio and potential for high-speed measurements. LAMBDA (Large Area Medipix3-Based Detector Array) is a pixel detector system based on the Medipix3 readout chip. It combines the features of Medipix3, such as a small pixel size of 55 μm and flexible functionality, with a large tileable module design consisting of 12 chips (1536 × 512 pixels) and a high-speed readout system capable of running at 2000 frames per second.To enable high-speed experiments with hard X-rays, the LAMBDA system has been combined with different high-Z sensor materials. Room-temperature systems using GaAs and CdTe systems have been produced and tested with X-ray tubes and at synchrotron beamlines. Both detector materials show nonuniformities in their raw image response, but the pixel yield is high and the uniformity can be improved by flat-field correction, particularly in the case of GaAs. High-frame-rate experiments show that useful information can be gained on millisecond timescales in synchrotron experiments with these sensors.
![]() |
The record appears in these collections: |