Diamond Detectors for Ionizing Radiation - HEPHY

CHAPTER 9. SUMMARY 56
signal-to-noise ratios were observed to be 46 and 7.2, respectively, achieving approximately
digital spatial resolution in both cases. However, the version of the SCT chip was not yet
optimized for the small capacitive load of diamond detectors. The spatial resolution seems
to be limited by the polycrystalline structure of CVD diamond. Furthermore, the rst
prototype of a diamond pixel detector (ATLAS design) demonstrated its functionality in
atestbeam, and digital spatial resolution was observed in both dimensions.
The future program of RD42 includes further improvement of the charge collection
distance as well as the growing of large area detectors. Emphasis will be laid upon
the preparation and test of pixel detectors. Furthermore, the homogeneity studies will
be continued to investigate the charge collection properties on a scale of a few tens of
micrometers in the lateral dimension.