TCS water system worked fine overnight. I turned off TCS water system at 6:16 AM this morning. Start of purging TM2 water lines for helium pressure test again this morning.

2016-4-28 7:58AM. Disconnected TM2 water lines at TCS. Purged them with compression air each for 5 minutes. 

Anders and I finished the most part of TM2 water lines helium pressure test yesterday.I list the system parameters and test result as below:

TCS  IG1: 9.8XE-8 torr,  TCS IG2: 9.6Xe-7 torr, TCS IG1S: 3.5XE-9 torr, TCS CG1A: 10 m torr

Helium pressure: 70 psi. Test time: 5 minutes for each individual circuit.  1 hour for all  lines together test.

 Leak detector base leak rate:0.0 X E -9 atm.cc/sec, base pressure 0.0X E-4 torr. LD was always restored or closely restored to the bottom  scale after each individual test.

The HS and Window lines will be tested later with new target installed and  window line gaskets restored.

  I switched off TCS and TM2 vacuum pumps. The TM2 will be disconnected at TCS today and moved to silo on next Monday.

A meeting was held on May 4, 2016 to determine the scope of the North Hot Cell project.  The following was agreed upon by those in attendance:

The NHC will be a designated target change hot cell.  It will be capable of performing all routine target operations (target removal/installation, leak check, electrical check, video inspection, post irradiation examination, target waste packaging and removal) using the same method currently used in the south hot cell.  Provisions will be included for the ability to perform target waste separation in the future unless a significant obstacle is encountered in which case the meeting attendees will be consulted.  Target waste separation involves separating the internal target heater from the target heat shield, then combining multiple target heaters in a single F-308 shipment.  Neither an inert gas atmosphere nor a double-door waste transfer system will be part of the NHC scope.

The following people were in attendance:  Bob Laxdal, Anders Mjos, Don Jackson, Joe Mildenberger, Friedhelm Ames, Alex Gottberg, Grant Minor, Yasmine Saboui, Peter Kunz

The following people were invited, but were unable to attend:  Chad Fisher, Pierre Bricault

The project will begin immediately, with Isaac Earle as the project leader.  The first steps will be to submit a Project Initiation Sheet, then to write and release the Requirements Specification document.

Update schedule weekly. See attachment 1,2,3.

They were moved for TM3 inspection job last week. All the bolts on the panel are hand tight only now since they will be removed out for camera installation during next stage inspection.

Chad and I leak checked the TM2 HS and window lines after new target installation.  The window line was very easy pumped down on LD. But, The HS line only could pumped to 2-3 torr at first. Chad changed the VCR gaskets on HS line(target). It solved the problem. The LD could pumped  both of Window and HS lines to the bottom scale. Chad sprayed lots helium around the VCR joints.  No leak has been found. WE will do helium pressurizing test on them at TCS.

I changed TCS tank top flange seal(o-ring 42.00"ID X 0.275" DIA) this morning before TM2 was moved to TCS.

TM2 and TCS vacuum system has been connected. I started all turbo pumps. Everything is good so far.

These two lines are passed helium pressure test this morning. The LD base leak rate 0.0 X E-9 atm.cc/sec. The base pressure 0.0 X E-4 torr. Helium pressure 70 psi. applied helium to both line for 5minutes each. No response on LD during the test.

The HV  cover is installed on to TM2 after the connections. The HV key is returned back to B2 level. The TCS Faraday cage is locked.

 Filled from 15 to 25 in

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.

Weekly update the TH schedules. See attachments 1, 2,3.

I did a 5KV mega test on TM3.  Only5Mohm @5kV between coli line PQ and chassis(ground). It confirmed the close gap between P,Q and GE. Other lines are ok. See attachment.

David Wang wrote:

I did a 5KV mega test on TM3.  Only5Mohm @5kV between coli line PQ and chassis(ground). It confirmed the close gap between P,Q and GE. Other lines are ok. See attachment.

See attachment for sparking signs of the water lines mentioned  above (Coil and Ground Electrode lines) in TM3 Source Tray.

Aurelia Laxdal wrote:

David Wang wrote: I did a 5KV mega test on TM3.  Only5Mohm @5kV between coli line PQ and chassis(ground). It confirmed the close gap between P,Q and GE. Other lines are ok. See attachment. See attachment for sparking signs of the water lines mentioned  above (Coil and Ground Electrode lines) in TM3 Source Tray.

PLEASE NOTE: the resistance values for A and B on David's attachment are not correct since these measurements were done after Chad removed the target and the heat-shield bracket was moved, so consequently the water lines were not at their nominal locations. Once they were back in plac,e David took another measurement and the resistance values for A and B showed also 3,000 MOhm (as it was for most of the lines). The only lines that still showed a low resistance were the Coil lines. 

Weekly update .

TM4 and ITE are under roughing now.

The spent target vault door does not open or close. The emergency door closing did have to be used to close the door as it was locked in an open position, the door stopped just off the open override limit. The door was closed and the spent target that was being assayed was placed into the mini storage. The problem with the door appears to be related to the motor itself, as all the controls to the motor appear to be in working order. Also it was noticed on the emergency door closing winch the wire rope has a kink in it from sitting in open position for so long this can cause the wire rope to jump from the pulleys.

6/27/2016  Dan McDonald. Replacement motor was ordered from Beaver Industries Friday the 24th received this morning the 27th. Once received Travis wired the motor to its proper operating orientation. Once the motor was wired  it was  set it up and plugged it in to test rotation and control function, at this point we disconnected the motor and re installed it to the gear box. Ran three open close sequences to ensure all was well. In the case of the emergency cable system a plan is being developed to correct the cable slack and kinking problem. We went ahead and ordered a spare  vault motor which is located in the RH Machine Shop