Maintaining and operating experiments at off-campus sites often results in large consumption of C2H5OH compounds or their derivativs. Because even small quantities can significantly alter the performance (of the operator) it is essential to determine the exact BAL. The tunneling monitor is a novel device to accomplish this by measuring the solid angle of the field of view, also referred to as the tunnel view (see picture to the right), once a certain threshold has been exceeded.
Initial tests have shown that the callibrations is strongly object dependence. The plot below shows various callibration curves in comparison with the prediction of the theoretical model in Genesis 1.3. Note that the A.M.-object has a strong anormaly at small BALs, resulting in an improvement with respects to its zero (sober) state. All other obejcts shows more and less normal performance except for the P.F.-object, which poor performance makes it most likely, that it willl only be used in the off-campus experiments in a case that the minimum number of needed operators (LLNL:1, FNAL:1, BNL:2) is not achieved.
