Vacuumed out remainder of debris from the wall penetration, removed cradle and checked condition. Down stream support bracket sees advanced stages of material loss (OBO 20-30% loss). See attached photos.

RPG reports that the removed beam tube has 15k CPM on the interior of the beam tube.

Tank flange was cleaned as per 2009 repair report, looks OK. Video capture of flange inspection attached as .zip file.

.03" shim was inserted into the clamp indexing block.

Yesterday we installed the 2a2 window, the drive screw was torqued until 70 ft-lbs and we stopped, the yoke is not fully closed to its hard stop with roughly 7/8" to 3/4" still to go. Similar to identical conditions to 2a3 beamline window install, see https://elog.triumf.ca/TIS/RH-ISAC/647 for that install. Otherwise clamp looks centered and installed correctly.

Concerns with the cooling lines for the window WRT to the base of the shielding plug: There is no jog bend indicated on drawings for the transition of the window cooling lines from beamline center to the corner of the shield plug penetration. See photo for cooling line position on initial removal of shielding plug. It was decided to not add a jog for the shield plug and to carefully reinsert it being mindful of the cooling lines.  The shielding plug has a chamfer on the corner to allow the cooling lines to be routed to the top.

A new beam tube cradle is being manufactured where the old one will removed and the new one swapped with the beam tube in situ. Both sides of the window still need to be leak checked.

Anders and I leak checked new 2A2 window seal on ITW side. Leak detector was connected  to ITW TP4.  Base  leak rate 0.0Xe-9 atm.cc/sec. base pressure 0.0xe-4 torr.  Sprayed 15-20 psi directly underneath 2A2 window by using exist 2a2 window leak check copper tube. The leak detector got response in 5 seconds when helium was applied. the leak rate was 5xe-6 atm.cc/sec. Once the helium source was closed, the leak rate dropped quickly back to base level. To confirm the leak is at window , I sprayed 15 psi helium around all top flange seals of TM and entrance module.  There was no direct response during the spray( about 1.5- 2 minutes). There was a weak slow up response (up to 1.0 xe-7 atm.cc/sec) which was started after 1.5 minutes of spray. The weak response is cause by helium drift in my view.   Our conclusion is the 2A2 window seal on ITW side is not perfectly sealed.  The elak we saw on LD is ture , and it is located on window.  The station will be vented soon for shielding plug moving back. .

Leak detector is connected to ITW TP4. LD Base leak rate 0.0XE-09 atm.cc/sec. Helium line is connected to existing window leak check 1/8 " copper tube. Applied 18psi helium for 1 minute. No response on LD. The window seal is good on ITW vacuum vessel. 

 The west entrance module has been moved from the silo to the west target station.

Link to e-log,

Link to efault

Tank level down from 76 to 55 in on TK1

Valve replaced by Curtis today

 SiC#37 has been moved from the South Hot Cell to the Spent Target Vault. It was placed in Pail #165 and put in spot 3B of the vault and it measured 25.8mSv/hr upon removal from the hot cell. See the attached PDF for details

 A Motorla CP200 portable two-way radio was tested today for use inside the ISAC hot cells.  A High Technology Communications Throat microphone PRO model from Planet Headset was used with the radio.  Chad entered the NHC wearing the throat mic and radio under a air supplied hood to mimic real world conditions.  Communication was clear with the other person in the NHC service area, in the SHC service area, at various locations on the B1 level, and even with an operator in the TRIUMF Main Control Room.

This testing satisfies RS 104 of the NHC requirements specification (Document-131915, Release 1)

Field measurements have been taken to determine the level before entry for repair of manipulators.

Field on contact at manipulator is 560 uSv/h, and at approximately 1/2 meter at table surface 920 uSv\h.

The shield door has been opened and fields measured at 77 uSv/h on contact at the AL. panel.

Shorted TGHT with new high current connector assembly and heated to 600 A. Temperature measured on half way point on cable ~ 70 deg C and on connector ~60 deg C at 600 A, 45 / 40 deg C at 400 A. Target Hall locked out during test

hot items have been moved and shielded as much as possible. Field at left manipulator has been reduced from 560 uSv/h to 85 uSv/h.

Tuesday, June 26 the broken tong cable was replaced on the west manipulator in the south hot cell. Wednesday the tong cable was preemptively replaced on the east manipulator of the south hot cell.

At the end of manipulator repair Thursday the ventilation pre-filter in the hot cell was changed. Old filter remains in the hot cell until such time as it can be removed.

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

Installation of the diagnostic connections between the NHC hot and cold sides has been completed.  The cable bundle was prepared by Travis Cave in the electronics workshop with connectors attached at one end only.  Metal fish tape was first ran through the conduit from the cold side to hot side, the non-terminated end of the cable bundle was attached to the fish tape inside the cell, cable pulling lubricant was applied, then the cable bundle was pulled through the conduit to the cold side, and the cold side terminations were then made.  For future replacement of the cables and connectors the same method should be used, and a minimum of 6m of cable length.  Connector details can be found on drawings IRH1765 (hot side) and IRH1767 (cold side).  Conduit is 1" trade size PVC type (PO#3041531). Wiring details for each connector are attached below:

9 pin CPC connector:

Pin 1: Brown
Pin 2: Red
Pin 3: Orange
Pin 4: Yellow
Pin 5: Green
Pin 6: Blue
Pin 7: Violet
Pin 8: Black
Pin 9: No connection

All wires 14 gauge. 
Connector PN: Amp 211768-1
Cap PN: 208652-1

4 pin CPC connectors:

Pin 1: Coax RG-179
Pin 2: Red (18 gauge)
Pin 3: Black (18 gauge)
Pin 4: No connection

Connector PN: Amp 206430-1
Cap PN: 208800-1

SHV:

Connector: IRH1769 (customized "Kings 1709-1" connector)

USB:

5m long powered USB 3.0 cable
Connector: IRH1770 (customized "TE Connectivity PC4B0100-15NY-1-C" connector)
Cap PN: USBFTV 2 N

Ethernet:

Wires installed in the following order when viewing the back side of connector with PN lettering right-side-up:

Connector PN: Tyco 1546877
Cap PN: 208652-1

 Yesterday the spent UC#22 target was moved from the south hot cell to the spent target vault. It was placed in pail #167 and placed in spot 4A see attached PDF for details.

 On July 30th the NHC diagnostic signals were tested:

- 9 pin CPC: a shorting plug was installed on the hot side - continuity check results were as expected

- 4 pin CPCs:  snake camera installed in both hot side connectors with portable monitor on cold side - both connectors worked as expected

- USB: laptop connected on hot side, USB mouse connected on cold side - worked as expected

- Ethernet: laptop connected on hot side, cold side connected to building ethernet port - connection to network worked as expected

- SHV: a shunt was installed on the hot side - a short circuit was measured from the cold side as expected
            with no shunt installed the line was Megger tested: 1.63 G-ohms recorded @ 1000V

The control panel switches for the in-cell receptacles were also tested.  Each switch (a - d) worked as expected.

On July 31st the gas supply solenoid valves were tested.  60psi air was hooked to each solenoid inlet.  With the valve closed there was no air flow.  When each push-button or switch was activated air flow was observed through the correct solenoid.

I did a helium pressure test on TM2 HS line at TCS. At 70psi helium, the leak rate is 2.5 xE-7 atm.cc/sec. I think this is the number that close to result before which is 1.7xE-9 atm.cc/sec. WE know there is a small leak on this water block seal. Chad  and I did helium  spray check yesterday at SHC. It was good at bottom scale.  No much worry on this low E-7 range leak.

 The spent Nb#8 target was moved from the south hot cell to the spent target vault. It was placed in pail #168 and place in spot 2A in the vault. See the attached pdf for vault details.