TAU status 14/2/2012

Temperature behavior in red Delayed response No A/C T=24-25 C 19 o C Cold A/C T=19-20 C 30 o C Hot A/C T=28-32 C 16:30 18:00 04:00 02:00 CH 7 Panel setup: Ni-Ni panel CF4 600Torr 6High Voltage lines 10 Read-Out lines, with attenuators V # hits/ 30 mins Sec PDP hits /channel

Temperature behavior Panel setup: Ni-SnO 2 panel MDT gas: Ar-Co 2 600Torr 6High Voltage lines 10 Read-Out lines, with attenuators. 980 V Source with collimator above RO lines 2,3,4 Some problematic channels, not electronics issue. Could be due to bad connections in the RO card ? However, these are less relevant to the measurement PDP hits /channel

Temperature behavior 13:00 reach stable temp The drop in rate starts at ~13:00. (black line ) Each red line is 24 hours. Start at 10:30 am No response to changes in temperature after the first increase in temperature. CH2 Usual behavior # hits/ 30 mins Sec PDP hits /channel hours Temp 19 o C Cold A/C T=19-20 C 30 o C Hot A/C T=28-32 C

Temperature Control Problem with Temperature control. Two A/C. The left rise A/C #1 – located in the other side of the room relative to the temp sensor - but stopped working. The right drop A/C #2 - close to the Temperature sensor – not a reliable measurement. More “scientific “ method is needed to control the temperature. In order to perform more accurate measurements. In any case strange behavior of the detector. Rate declines with time. 12/2/12 Mid-day 9/2/12 12/2/12 Mid-day

The hypothesis Paschen's curve Temp decrease, so does the pressure. Breaking Voltage is lowered, so with the same HV and lower temperature we expect to have higher rate.

Test Beam preparations Online monitoring Server-client output. Multi-threaded readout: – for plotting histograms quickly. – receive PDP output. Individual CH selection A few simple drawing options