TM3 and UCx#44 ran in ITE but issues with the cyclotron prevented proton beam delivery. Nonetheless, the target was heated and provided stable beam to TITAN as well as for tuning and some tests.

Results of inspection of TM3 module after run:

The module looked pretty good. There were no marks on the polished surface of the containment box, next to the water blocks, that were visible. But we didn't remove the box, only looked with the camera and it was visible by turning the module. So some things may have been hidden. There were some black marks on the door, near the bolts that hold in the handle (see attachment). This seems a very unlikely spot for sparking as the fields should be considerably lower than at the target handles, lower down. Maybe the spots are from oil left on the door that had a chemical reaction? There is one very faint matching spot on the top of the copper trident connector, but it doesn't look much like a spark mark. The other two marks have no corresponding mark on the source tray. There were no marks on the ground electrode, or anywhere else on the source tray. There was a scuff on one of the trapezoidal insulators, but it could have happened during installation.

Results of inspection of the target after run:

The FEBIAD target developed the same cathode short we have seen on almost every FEBIAD we run online - a high resistance short from cathode to HVC that prevents voltage on the cathode. This time the short remained after cooling the target, and David measured 208kOhms with the ohmmeter on the module top (11kOhms with the megger). We used a multimeter in the hot cell to test after the target had been dismounted and we found no short. So it must be related to either the position of the target (upright vs face down) or time (a conductive trace on an insulator oxidizes and becomes non-conductive again) or some pressure/shaking during the de-installation.

There weren't many marks on the target - a faint mark near where the faint mark on the copper trident was observed, some marks on the EE which had no counterparts on the ground electrode. See pictures.

Tom Kauss inspected target hall crane below hook attachment pins and plates ITA6550-01 yesterday. He certified the use of these pins and plates. The inspection of these pins and plates was in Target hall crane annual check list. It was issued as a calibration index by Isaac Earle in 2022-Feb-08.  After inspection, The inspection tag  was issued and attached to pin. Tom has an inspection record on this job

Chad and Anders inspected the Source Tray today using the camera in the hot cell. A dark spot was observed on one of the four insulators separating the Extraction Electrode from the Ground Electrode. This could potentially influence the high leakage current. Some discolored areas were also observed in the Service Tray, but these was present when the module was built. See attachment for details.

Yesterday, Grant entered the Ante Room with David Wang to visually inspect the two sets of failed c-seals from the Heat Shield circuit, to remove the second set from the Heat Shield water blocks, and to leak check the heat shield circuit with o-rings and a water-block-to-leak-detector fitting.

Some photos of the inspected seals are in the attached design review presentation.  Some unusual marks were observed on both sets of failed seals.

The heat shield lines and water block assembly leak checked successfully to the bottom of the leak rate range ("UNDER" ~1x10-9 atm cc / sec on the Varian 979) with a great flood of helium on all joints with no response anywhere.

Tom Gauss inspected  two target module lifting frames ITA0494-1997-01 and ITA0494-1997-02.. He certified the use of these two frames. Inspection tags have been issued and attached to frames. He has inspection record on them. See attachments.

The in cell airline has preemptively been replaced. The hose was, as far as I know the original.

To prevent TP bearings seize during shut down, ITW:TP3,TP4, TP1S TP4S have been started since March 06th. They work fine.  The plan is to switch them off this Thursday, and restart them in May before ITW in use.

Air leak was found at the Solenoid control valve located in the Pre-Separator & DB0 room.  The gasket between the solenoid body and its manifold block was broken, see attached photos. The gasket and solenoid body were replaced. Air was turned back on to IV5 (B/L gate valve) with no apparent air leaks. The gate valve was actuated open & closed from the control room seeing both limits successfully.

Measured resistance on safety limit switches for FC5 on Exit Module 2. Determined that the in connected signal did not work (shows not connected irregardless of FC position). Confirmed proper operation of the OUT limit. See attachment for details. The Harp 5 x and y signal connectors were checked and reconnected.

Yesterday Diagnostics group installed a temporary external limit switch to provide the in signal to the safety system.

ITW and TM2 primary and secondary vacuum vessel leak check is done. Leak detector is connected to ITW TP1. Base leak rate on leak detector is 0.0 x E-9 atm.cc/sec.   See attachment for the result.  No big issue. Two old leaks we found last year at location D and E disappeared in this check. We did Vacseal resin spray on them last year.  It looks like the Vacseal spray works .  From the result , I can see the o-ring between exit 1 module and T - flange is closing to the end of the life.  There are two small leaks on this o-ring now at A and B location. We plan to change this o-ring next winter shut down. We do vacseal spray on them this year. The big O-ring between tank vessel and T -flange looks still ok. Two small leaks are found on location F and G on this O-ring. Not much we can do on them. The leak on location C and B were sprayed with resin yesterday after leak check. They are leak free after spray on check. I will double check them. Leak on location A will be resin sprayed after TM2 is removed and ITW is under vacuum.   All TM2 internal water-cooling lines are helium pressurized (70 psi) for 5 minutes each. HS shows 2.5 X E-9atm.cc/sec leak rate. The rest lines are 0.0 X E-9 atm.cc/sec.

ITW/ITW 24VDC electrical connectors for TP BVs MRO has been done. 

In past two weeks, ITW/ ITE primary vacuum back up lines and BVs in ITW/ITE pit have been leak checked.  ITW BV1 and BV2 on back up line side were leak. They are replaced with old leak free BVs.  ITE TP2 NW25 SST  flexible line right after pump were leak . It is replaced with new NW25 SST flexible line. Two leak were found on ITW side KF 50 O-rings connected to NW 50 SST flexible coupling. They were replaced with new KF50 o-rings. After job, both  stations primary back up lines in pit were leak checked .  They are good.

ITW/ITE pit general annual cleaning up were done. all concrete floor and TM equipment surface are vacuum  cleaned. HV cage inside and blue nylon insulators were wiped by paper.

2013 winter shut down ITW-TM1 primary vacuum vessel, secondary vacuum vessel, and water lines leak check: connected leak detector to TP2(primary and water lines) and TP4S (secondary). base leak rate 0.0xE-9atm.cc/sec,base pressure 0.0XE-4torr. Sprayed helium to all primary vacuum seal and there is no response on leak detector. Helium pressurized all water lines(except HS) at 70psi ,3mins.Tube heat(+) no response, tube heater(-)1.6xe-9atm.cc/sec, target oven(-)5.8xe-9atm.cc/sec, target oven (+) 6.9xe-9atm.cc/sec, EE 5.7xe-9atm.cc/sec, MSP no response, window 7.5 xe-9atm.cc/sec.All water lines are water leak free.  Two leaks had been found on secondary vacuum vessel. One is on exit 1 to tank o-ring (east side, E-N corner). The leak detector got   responses from 1.4 to1.7 xe-7 atm.cc/sec scale . The test  hadbeen repeated 4-5 times and   confirmed the location   . The second one is a small leak which  is on exit 2 to tank o-ring(east side, close to E-N corner). The leak detector got  responses from 1.4 to 1.8xe-8atm.cc/sec scale. The test had been repeated 3 times and confirmed the location. As the present plan. we will replace the exit1 to tank o-ring during this year shut down time.

I let isac opp switched off ITW turbo-pumps. The argon vent valve in electrical room is opened. The ITW argon venting will be started  soon.

ITW water system maintenance is done. All working paddle wheels and coils are replaced. ITW water system polyurethane tubes are replaced as well. Two 3/8" leak small valves on return lines are replaced. 85 liters of tritium water are transferred from storage tank to B2 level holding tank. LALC water are refilled into S-tank. Restarted pump and checked system. Everything works fine now. No water leak has been found so far.  

Annual ITW water signals interlock check are done. Everything works good.

Chole and I finished ITW water signals interlock. No issue.

I did a ITW water signals interlock check with ISAC opp. They are checked once a year before first beam on.

2016-04-13 Same test is done on ITE also. Everything is good.