Genova Site - Report at SQTF G. Darbo - INFN / Genova SQTF, January 2005 Genova Site Report C.Gemme, G. Darbo, V.Kostyukhin INFN / Genova Copy of this talk on the CDS Agenda:

Genova Site - Report at SQTF G. Darbo - INFN / Genova SQTF, January Status of Loaded Staves in Genova  Stave /08/2004 Pre-production stave, completely characterized, data summary available at:  Stave /10/2004 Initial production stave #1, completely characterized. On this stave we had a power fail on the chiller that had the consequence of over heating 6 modules that were powered. Temperature on the modules NTC reached 80÷90ºC. All the modules tested again after the accident and did not show damages. data summary available at:  Stave /11/2004 Initial production stave #2, LOAD test performed, Burn-in. STAVE test underway. The LOAD test have been performed with a new set of analysis cuts to overcome the effect of HV bias off in the SURF. Survey has been made, but there was large difference in temperature (~6ºC) between loading and survey rooms. Because all screws were left tight there is a suspect that this induced a deformation to the stave due to the large CTE of the aluminum cradle. The module position in Z is ±15÷20 µm, while in X there is a larger error that we think is partially induced by change of bow due to thermal effect. When the STAVE test will be finished a new survey will be made.Partially filled data summary tables:  Stave /12/2004 Initial production stave #3, stave loaded, now under survey.

Genova Site - Report at SQTF G. Darbo - INFN / Genova SQTF, January Robot Upgrade  To improve the precision of the loading robot, 3 additions to the setup are under way: 1)Temperature will be monitored by a temperature logger with 4 channels. Temperature probes have been put in thermal contact with support parts of the robot and also air temperature is monitored. 2)A linear encoder from Heidenhain, mod. LS-487C, having 5 µm precision, have been ordered. The encoder has a travel of 92 cm and will be used to monitor and correct the linear Z movement of the robot stage. The encoder parts will be in genova by mid February. 3)A digital measuring microscope has been bought and it will be used to measure the position of the modules in the garage position or on stave. The microscope is from Keyence, mod.VHX-100 with two zoom lens (25÷175 X and 100÷100 X). It has 18 MPixels resolution and calibrated measurements in the image plane. Also digital image processing are available in the system, like depth of focus increase and several options for image enhance.

Genova Site - Report at SQTF G. Darbo - INFN / Genova SQTF, January Stave T=10ºC, Room T=0ºC, Pump Speed 1… Pump Speed

Genova Site - Report at SQTF G. Darbo - INFN / Genova SQTF, January Stave T=-20ºC, Room T=0ºC, Pump Speed 1…8 Pump Speed

Genova Site - Report at SQTF G. Darbo - INFN / Genova SQTF, January Stave T=0ºC,-10ºC,-20ºC, Room T=0ºC, Pump Speed 6 Stave Temp. T = 0ºCT = -10ºC T = -20ºC

Genova Site - Report at SQTF G. Darbo - INFN / Genova SQTF, January Electrical Test  The electrical test for LOAD and STAVE is implemented using 2 SURFs boards. It is planned to add other 2 to completely automatize the system as soon we will receive them from LBL. The movement of the source is controlled under ambush.  For next stave the test should run in completely automatic way.  Some new analysis cuts have been defined to overcome to the "bias effect" on HV off when a module is tested with the SURF.