TP2 on TM4 has been replaced with a new turbo pump , I didnt  reset the controller in electrical room.So this new pump start to run at 8083 hours on ITE TP2 controller. The new TP2 pump properly  started. It works fine now.

I had changed all old induction coils for flow sensors in ITE .I checked all ITE water signals on control boards in electrical room.They are all very stable and constant.All ITE inductions coils work fine now.

ITW and TM1 winter shut down vacuum leak check had been finished yesterday.All ITW primary vacuum vessel, secondary vacuum vessel, and TM1water lines had been leak checked.No any leak has been found .The ITW and TM1 are both leak tight.Some detail information below:

TM1 and ITW primary vacuum vessel and water lines:   The leak detector was hooked on BV2 after TP2.  Calibrate leak detector.leak detector BL 0.0xe-9atm.cc/sec,BP0.0xe-4 torr.

Sprayed helium to all primary vacuum vessel seals, flanges, turbo pumps,gauges, blank offs, bellows, and insulation blocks on TM1 and ITW. No any response had been found on leak detector.Also applied 60 psi helium to all water lines in TM1 for 5minutes each,no any response on leak detector.The leak rate stayed at 0.0xe-9 to 0.3 xe-9 atm.cc/sec all the time. All waterlines in TM1 are leak tight.

ITW secondary vacuum vessel:the leak detector was hooked on BV4s after TP4.Leak detector BL 0.0xe-9 atm.cc/sec ,BP 0.00xe-4 torr.  Sprayed helium to all secondary vacuum seals which include all bellows, tank to tank flange seals,tank flange to modules seals,beam diagnostics, gauges,turbo pumps, and EXIT 2 top service cap seals.No any response had been found on leak detector during the check. The secondary vacuum vessel is leak tight on ITW. 

All high vacuum gauges were read at 2-3xe -7 torr range  during the test time and no change during the test.

I pumped down conditioning station IMC today. The inside bellow pressure is -20 psi on the gauge.Visually checked the bellow before and after pump.The bellow is in retracted condition now.

I did a leak check on conditioning station vacuum system today.The vacuum system had been roughed over night . This morning before the leak check,the convectron gauge  reading on emittance box is 20m torr which is reasonable. I hooked the  leak detector to system (without turbo pump  on) . The leak detector showed base LR 6.3xE-8 atm.cc/sec. At this base LR, I found 2 leaks up to low E -6range on that cross tube flange to small turbo pump, and the cross tube flange to vessel. I found some of the bolts on the flanges could be tightened more ½ to ¾ turn without difficulty. I checked all the fasteners on the box, cross tube, and turbo pump, tightened some of them. By doing it, the base leak rate dropped to 3.0x E-8 atm,cc/sec, base pressure still 0.0XE-4 torr. I sprayed helium again, the response I found before now disappeared. I waited for about 1hour, and let the leak detector base leak rate dropped to 1.3 xE-8 atm.cc/sec, and base pressure still at 0.0xE-4 torr. At the same time, i only use leak detector as back up pump for whole sysytem and shut off the valve to the scroll pump.By doing this , the leak detector is much stable on the base leak rate. With the help of Bevan, i sprayed the helium to all the vacuum  equipments again.This time,no any tiny response has been found on leak detector.The leak rate stayed at 1.2x E-8atm.cc/sec, and no change on pressure also. I checked helium bubble several times during the spray. The conditioning station vacuum system is leak tight.

 MAA is secured .The ITE and MAA are ready for taking proton beam now.

TM1 moved to conditioning station to today. After moving, I connected the vacuum system which include all gauges ,vacuum lines , controllers,and fans.I started roughing the station through two turbo pumps(on TM1) . After 2 hours roughing, the station vacuum went to 100 mtorr. I started TP1 and TP2 on TM1 and turned on 3 gauges (png1 on service cap, ig1 on service cap ,and png4 on emittance box) . All  turbo pumps and high vacuum gauges work fine .The pumping down of the station is smooth so far. With only 1 hour turbo pump on all three gauges readings are at low -5 torr range. The fans for cooling the turpump are also turned on. Everything is fine.

  I hooked up the leak detector to the TM1 and conditioning station vacuum system, and did the air to vacuum leak check on TM1 and station. The leak detector base leak rate 0.0x-9Eatm.cc/sec,base pressure 0.0x -4E torr. I sprayed helium around all water quick connectors (especially heat shield),gasline and valves, all gauges, turbo-pumps, bellow,  flanges, and blank-offs. There is no any response on leak detector. The TM1 is leak tight on air to vacuum seal. All   water lines on this module had been pressurized with 80psi helium when module was located in ITW on this January, and they are all leak tight. Bevan and I did a leak check on new installed diagnostic box and all vacuum lines, gauges, and turbo pump last week, and they are all leak tight. So I would say the whole vacuum system on TM1 and conditioning station now is leak tight. Right now, the PNG1(inside containment box ) is 6.5 xE-6Torr, the IG1 (top service cap which close to turbo) is 2.1xE-6 torr, and the IG4 (inside diagnostic box) is 4.1xE-6 torr.  

Chad and I did a leak check on TM1 Nb5 target heat shield circuit. The leak detector was connected to heat shield circuit.The pumping down  of the  circuit is very smooth.Base leak rate is 0.0xE-9atm.cc/sec,and the base pressure is 0.0xE-4 torr. Chad checked the helium flow downstairs .He sprayed helium to both up and down VCR joints 2seconds each time. There is no any response on leak detector(30 seconds waiting time). Both joints did the same test twice, no response . Finally, he flushed helium around the target for 10 seconds,and i didnt see any response on leak detector either.The heat shield circuit on TM1 Nb5 target is leak tight at this stage.

 The pumping down on TM1 and conditioning station is fine over the weed end. The PNG 1(containment box) is 2.4xe-6 Torr, the IG1 (top service cap) is 9.0 xE-7 Torr, and the IG4 is 1.9xE-6Torr (diagnostic box). At this pressure, I connected the leak detector to the system and applied 80psi helium to the heat shield circuit. The leak rate and base pressure on leak detector are 0.0xE-9 Atm.cc/sec and 0.0xE-4Torr. There is no any response on leak detector during 4mins helium applying time. So the heat shield and Nb5 target water circuit is completely leak tight.

The the magnetic field on ITE TM4 flow wheel  was gone yesterday.So there is no water signal on this circuit. The water flow is fine ,and the wheel is rotating. I removed 1 shielding block on ITE and replaced the old wheel with a new one.Now the containment box water signal is normal.The problem is fixed.The shielding block is back.

Due to weak magnetic field on TM4 EE water flow wheel, we have two times intermittent water signal on this circuit this morning. I replaced the old wheel with a new one in ITE. I checked the signal frequency and strength.It looks fine now.

 I moved 5 shielding blocks from ITE to ITW .  I checked  all ITW water signals strength and frequency in electrical room, and everything looks fine.The ventilation system is set up for ITW. MAA is locked. ITW is ready for taking proton beam.

I disconnected TM4 in ITE. The heat shield water circuit is purged. I  closed the water supply to ITE.Now, the water system only supply water to ITW and the system pressure is 110 psi which is good.I visually checked S-tank sight glass,and the water level is stable comparing to last week. Also, I visually checked the ITW water signals  strength and stability on electrical panel from electrical room.Everything looks fine.

Chad and I leak checked the heat shield circuit after sic 27 target  installed. It took 20minutes  to pump down the circuit to the leak detector bottom scales. The leak detector is calibrated today,and all the vacuum lines and connections are leak checked by spraying helium. Chad sprayed helium to each vc fittings for 2 seconds. There is no any response on leak detector . The test repeated one time and the result is same. Chad flushed  helium around the target for 10 second .This time leak detector also have no respone.  The heat shield circuit is leak  tight at this stage . We will move TM4 to conditioning station and pressure helium test the circuit.

I did a helium pressure test on heat shield circuit. The leak detector is concected to the TM4 primary vacuum system.The IG1 is 1.1xe-6 torr,PNG4 is 1.5 x E-6torr,and IG4 is 2.1 XE-6torr.leak detector base leak rate:0.0xE-9 atm.cc/sec, base pressure is 0.0x E-4 torr.Applied 80psi helium to heat shield circuit for 4 mins .There is no any response on leak detector during 4mins time. There is no pressure change during the test time. The heat shield circuit is leak tight.

All TM4 connections in ITE is done. The station and TM4 is under roughing now.

  I started 6 turbo pumps this afternoon. The TM4 and ITE are under pumping now. The vacuum is fine so far. We will see a better picture tomorrow morning. In order to keep the system pressure at 90 psi, I just turned on all the water to TM4 circuits. The water interlock check which related to TM4 water circuits is all done. I will do the rest part (XTpage related to 2A beam) next week once I turn on all the water to ITE. The ITE and TM4 will be ready for HV conditioning once the vacuum is ok.

5 shielding blocks have  been transferred from  ITW to ITE. ITE ventilation is opened, and ITW closed. All ITE water  signals have been checked for frequency and strength.They are all good. ITE is ready for taking proton beam.

I disconnected TM1 in ITW yesterday morning.The general radioactive level in ITW over the TM top (300mm) is about 350 usv/hr. contacting level on TP1 and TP2 are 1.0-1.2 msv/hr. I took 0.22 msv dose .The module is moved to

south hot cell later and a shielding plug is put back to ITW. Everything is fine.