Date: Mon, 5 May 2003 14:36:55 -0500 (EST) From: David Eric Miller
To: Rajendran Raja Cc: David Eric Miller , Peter Barnes , Pierrick Hanlet Subject: Re: HV plot Hi Raja and Peter! I can plot the TPC data for you but I don't remember what format you wanted. I can also put it on the web page. The data is at the end of this email for your immediate satisfaction.
About the connectors, wires and o-rings: If Peter has the gaskets for me then I can put the connectors into the TPC at any time. Otherwise I need to get the material and punch out some gaskets myself. I have a 2 conductor plus ground to isolated ground BNC bulkhead connector bushing potted here at Lab 6. However, to open the TPC, run the wires and repair the o-rings I will need at least one person to help. Two people helping would be much better. Peter, should I use vacuum grease on the gaskets? -david eric miller p.s. Here is the TPC data. May 2nd, 2003 1.5 scfh N2 flow rate @ 5 psig Power Supply Trip Setting 1.01 mA Note: High Voltage Toggle Switch Light is inactive. Note: Water from heavy rain is on the floor in the clean room. Humidity is probably 100%. Volts Micro-Amps -1002 -8.4 -1537 -12.8 -2002 -16.5 -2501 -20.5 -3001 -24.5 -3502 -28.6 -4012 -32.6 -4505 -36.6 -5001 -40.6 -5506 -44.7 -6003 -48.6 -6515 -52.7 -7016 -56.7 -7555 -61.0 -7998 -64.6 -8502 -68.6 -9006 -72.6 -9255 -74.6 -9522 -76.8 -9757 -78.7 -10005 -80.6 <--Raja inspects chamber: "No sparking heard." -10266 -82.7 <--Raja inspects chamber: "No sparking heard." -10510 -84.6 <--Spark heard. Power Supply Tripped. Power Supply Reset. -128 -1.3 -1000 -8.4 <-- Same current draw as before spark. Wires unbroken. On Mon, 5 May 2003, Rajendran Raja wrote: > Hi Dave, > > Do you have the HV plot for the TPC yet? if not you can give me the page from the log book and I can plot it. > > Also, when do you think you will be able to put in the connectors and repair the gasket for the TPC? I will be away next week so perhaps we can get to it this week? > > I realize that you are busy with chamber 4 move, which must have priority. > best regards > > Rajendran Raja > Fermilab, > WH13E, Rm 1327 > Tel: 630-840-4092 > Fax: 630-840-6311 >