PIE on TiC#6 was done in the NHC. The target assembly looked brand new when we took it out, no heating spots or deposits (pictures on docushare). Online we measured a 400kOhm connection between TGHT-TBHT-COIL to HV common (TGHT and COIL shorted in TM2 service tray) and anode was unstable above ~300V. After the module move and before the target removal David found TGHT-TBHT-COIL was a dead short to HV common and the anode was at 39kOhms to HV common.

1. Wanted to see if the TGHT-TBHT-COIL short was on the COIL. Measured with ohmmeter the COIL lines to HS and got about 700Ohms. But with the target lying down the COIL lines drop and touch the heat shield so to do this measurement Chad had to lift the lines, which could cause them to touch something else. So not sure how reliable this measurement was. It jumped around a lot, saw 0L occasionally.

2. Measured both target legs and tantalum gas line to HS, got about 5kOhms repeatedly using the ohmmeter.

3. Meggered across the gas line insulator to the gas line going into the target and got open circuit at 250V, so the gas line wasn't coated.

4. Target container looked vaguely red in the areas where the target material was, otherwise still no deposits on the inside. The container was not overly crystalized as seen on the legs and end caps.

5. Some sparking marks on the EE and some slightly asymmetric deposits

Continuing Aug. 22 2023:

6. Found what looks like a hole in the insulation on the COIL, maybe the cause of our short? Found a corresponding line mark on the copper plates that hold the coil down but not sure if it is related. Pics on docushare.

7. Grid looks perfectly new. Where was that current going?

8. Copper plates that hold coil were loose and bolts that hold coil in just fell out as well.

9. What can be seen of the anode wire looks good.