P001 - Sepsis impairs the capillary response within hypoxic capillaries and decreases erythrocyte oxygen-dependent ATP efflux

The gaseous pixel chamber is a wireless detector working in limited streamer mode, developed within the LAA project at CERN. Its excellent properties have already been described. We present here the latest tests and results obtained during the further development of this device but, as this is still going on, they are by no means complete. Included are various tests that we have made to extend both the range of operational voltage and that of the gas mixtures. Finally, we will discuss some ideas we have for further development.

As part of the LAA project at CERN a prototype of a streamer-chamber in which a blade, instead of a wire, is used as the amplification electrode has been built. A big advantage is that the blade can be bent to follow a curve so that a chamber can be built with cells ideally matched to the geometry of the experiment. Moreover, a blade is very rugged, it can withstand severe mechanical shocks and it is also resistant to damage by sparks. The drift time has been measured and a spatial resolution of 250 μm has been achieved. Left-right ambiguity can be solved by measuring the charge asymmetry on the walls. The coordinate along the blade is read by external pickup strips.