Rolled indium into new blanking plate turned down to 5.550". Dry fit with no indium ok. Assembled hook eyes from the previous blank off plate (removed from the slits box?). Used the same 20.5 mm spring compression (1.5 turns of the nut from finger tight). Hooks did not move 100% completely freely, but seemed ok.

Blanked off CM1: Reused CM1 pin drive (was written on the pin drive) Pin drive was 500 uSv/h on contact. Working at beam plane level seemed to have lower dose rate. Drove down to 1/8" just before shoulder on taper. Intended to use WD-40 but can was empty. Vacuum leak check will have to wait until a later date.

2016 02 23: Attached scanned inspection report of as installed blanking plate.

Attempted to remove RH parts between Q1, 2 and monitor vacuum box. Removed Q1 to monitor box parts, could not remove monitor to Q2 parts, pin drive and indium ring are stuck in place. Indium joint is severed however. Collar was removed.

East leg of pin drive was bent trying to remove the stuck indium ring, it is stuck to the monitor box.

Recommend to proceed with removal of magnet regarless of the current state of the indium ring.

Pails with RH parts marked 1384, 1385, 1386 and stored in north end of vault tunnel on grey shelf. RPG storage book updated to reflect this.

 On 8March2016, under W/P C2016-03-08-2, 4VQ3 was lifted out of BL4V with the vault orbit crane where it was first weighed then lifted onto the RH flat deck rail dolly.  It was then moved into the RH basement where it was surveyed before lifting it up onto the Red wagon cart in the RH loading bay.  It was then pulled to the Meson Hall loading bay by fork lift where and then over the Cycloton vault to the top of the E-Hall roof beams under the 10 Ton crane.  4VQ3 weighed 5900 Lbs. using Plants Groups "RON Load scale".  It was 60uSv/Hr @ 0.5 M on the upstream side with no contamination on the swipes.

The total accumulated dose received was 0.34mSv spread amongst 7 people.

See the attached photos.

 On 14March2016, 4VQ1&Q2 were removed from BL4V and lowered into the Vault basement B3 level where they were stored in the south west corner on their respective wood pallets.  The hot ends of both magnets were place against the west wall.  4VQ2 was lifted out first and moved temporarily downstream where it was separated from its magnet stand. Q2 was then craned into the basement where it was tipped 45^o to lay on the flat side of the magnet face.  Q2’s magnet  stand and it’s mounting brackets were then craned down onto another pallet and moved to the same storage area.

4VQ1 was pulled about 3-4 ft. downstream using a pair of ¾ Ton come-along winches to clear the overhead Elevating Jacks platform.   Q1 was then separated from its stand where both were lowered onto pallets like Q2 and moved to the storage area.  Four concrete shield blocks were postioned down stream of 4VCM1 to shield the beam exit port.

The total accumulated dose received was 0.46mSv spread amongst 5 people.  See W/P C2016-03-11-5 for Rad survey levels of Q1 & Q2.

See the attached photos.

Re-installed indium vacuum joint for 1VQ4, routing installation. R. Kuramoto sprayed silicone grease on to the threads and bushings on pin drive. Drove down tapererd pins and stopped 1/16" short of old marker markings.  RK. Commented on the drive screw bending under load, reversed drive 1/2 turn to relieve the stress on the screw.

Contacted E. Dalla Valle to continue assembling beam line down stream and pump when ready.

Started uncovering the area above the T2 to Q13 joint:

On Monday found leaking joint was the ring directly downstream of T2. Vacuum group has been spraying Vacseal (http://www.vacseal.net/Pages/default.aspx) sealant over the last 3 days attempting to get it in between the flanges and have partial vacuum to draw in the fluid. Seven sprays have been completed as of March 16th.

Tomorrow, 2 more applications will be made and then Vacuum group will pump the T2 volume over the weekend.

test

Assisted beamlines in replacing 2 insulators on 1A Q15 magnet. #10 and #14 insulators were found to be leaking at the ceramic, where the stainless steel fitting joins the insulator. They were both replaced. During re-installation of the #10 ceramic, the VCR coil termination broke off the coil end and a new one with updated design (see TBP0379) had to be soldered back in its place. The original SS fittings are deemed to have problems in their construction and have been replaced over the years.

Video capture shows soldered fitting with a large glob of excess solder on bottom. Other photos show new fitting soldered in place and completed assembly of fitting with new insulator.

Beamlines has changed out another 2 insulators on Q15 after discovering two additional leaks. Insulators #2 & #4 were replaced. One of them failed on installation (broken ceramic?)  and was replaced by another stocked replacement. Magnet was pressure tested and now enegerized as part of power testing. Doug P. expects repairs to be complete and to cover up the area by tomorrow.

Correction that all supply side (even numbered insulators) ceramic insulators on Q15 have been replaced with new old stock insulators as of today. Beamlines finds no power or water issues. Expected to cover up tomorrow moving on to the Q12 and Q13 magnet area next week.

T2 vacuum started today.

One of the cracked insulators is being stored temporarily in the warm cell (it is contaminated), Scott M. will be analyzing the broken ceramic once he has decontaminated it.

1.) Completed covering up 1A Q15.

2.) RH flask currently contains the 8 insulators removed from Q15. 3.6 mSv/h on contact, 40-60 uSv/h @ .5 m. Double bagged. Bag exterior was swiped clean, inside was not checked (didn’t want to breach interior bag just to swipe components).

Uncovered and placed bridges for 1a q12 q13 for doug's re cabling work. See WP C2018-02-13-2: work permit

Surveyed contents of storage flask located at TNF. The lid was lifted off roughly 12" up and a pole monitor was swept over the opening. The fields of the combined items in the flask were 9.84 mSv/h at 12-24". Extrapolated, the field is approximately 3.7 mSv/h at 1/2 m. 

The flask contains an indium blank off plate, ISAC beam window and some miscellaneous used water fittings. The ISAC window is probably the largest contributor to the field.

A list of the contents and the dates the were placed into the flask are attached to the top of the flask lid.

Annotated drawing of TBP0425D attempting to capture the repairs of 1A Q15 triplet magnet ceramic insulator/coils over the years.

Note that the file contains embedded comments visible only if opening the file in adobe acrobat reader.

The Beam Position Monitor between 1VB1 and 1VM3 has been installed. The indium joints are leak tight, however the V flanges are leaking slightly. The leak is small enough to still be able to run beam.

The Pin drive at the BPM and 1VB1 joint was replaced with a new one. The pin drive that was originally there had a bent screw drive so it was retired. The clamping collars at both joints were reused.

 beamlines replaced leaking insulator on q15, circuit #4. See updated pdf for replacement part and location.

 2022 Apr 28 to 29:

Installed a new remote handling 4" indium joint for new beamline 4 north section. Issues were encountered in clearance between the downstream steering magnet and the compression collar of the joint. Joint installation itself went smoothly. 

The drive screw is a 17mm hex instead of a 5/8". This was noted in the install of the blank off plate in 2016.

See attached pdf report for photos and more description.

Today:

Bridge setup complete; Noticed 12 x 3 x 3 block when placed on top of several other blocks rocked when placed down.

Took initial photos of joint: west side approximately 0.05" to 0.06" gap, east side 0.20" to 0.220" gap. Joint appears to be the same as before. See photos.

Will do visual/video inspection and leak check tomorrow morning.