The Ar glove box issues ( https://elog.triumf.ca/TIS/General/23 ) have been fixed.

Quoted from work permit: I2019-03-19-4

RPG checked the old SS lines. They were clear of contamination although still contained TCE. The TCE was cleaned out & removed.

The Ar glove box is connected properly to the nuclear ventilation as well as having the added filter / catch. The SS lines were replaced & valves cleaned. A large clog was found in the vent line and has been removed. Will now be able to test the regeneration function of the glove box.

-A regeneration should be performed monitored to test the lines for the glove box to be officially fixed.

The blockage was found on the exit of the Ar Glove Box. The blockage was held within a Swagelok check valve (P/N - B4CP2-1/3 - https://www.swagelok.com/en/catalog/Product/Detail?part=B-4CP2-1/3). It may have been installed intentionally, it may have been assumed to be a 1/4" brass pipe nipple. At any rate it was completely plugged and

did not allow for proper venting of the regeneration lines. Pictures of the blocked valve are included. The regeneration function is ready to be tested.

A regeneration of the Ar Glove box had been performed Monday, 04, Feb, 2019. At some point during the night of the 4/5, a leak of volatile materials burst out of the vent line inside the control box housing the fuses, solenoid valves, & electrical components. The volatile liquid, determined to likely contain Trichloroethylene, ate through the plug holding one of the 250 V 4A fuses. The plug then shorted to the glove box itself and the glove box main touch screen & controls completely shut off. The H2O & O2 monitors still worked, however we were unable to allow any Ar back into the box. A noticeable electrical / burning smell was found in the morning of the 5th and the cover removed. A highly irritating chemical smell was also found and respirators were then put to use.

A work permit (I2019-02-05-3) was opened for the cleanup & inspection of the fuses and electrical components. Darwin & I spent the afternoon of the 5th to cleanup the volatile liquid. It was determined that the glove box was temporarily ok as it was still maintaining a low oxygen atmosphere (below 200 ppm)

On the sixth we changed out the melted fuse plug and replaced the fuse however the Ar glove box did not respond in kind. 

Thursday, February 07, 2019, 08:00: Contacted Randy Boehm. He determined the lines were still alive, including the small control box and 4 fuse plugs. We changed two of the 10A fuses and cleaned the plugs. The touchscreen came back.

Thursday, February 07, 2019, 09:15: Contacted Darwin. Initially the Ar glove box did not purge and the solenoid valves did not respond, however 10A Fuse #F1 & 4A Fuse #F3 just needed to be seated properly. 

The glove box was able to be purged & made stable.

The source of the main volatile leak has not yet been determined completely (Thursday, February 07, 2019, 11:25) however it will be investigated this afternoon. 

In the meantime do not use the Ar Glove box 'Regeneration' function.

Friday, February 08, 2019: The source of the leak was determined to be the vent line leading out from the last solenoid in the control box and out to the regeneration purge /  vent outlet. It has a pin hole leak mid-line and a clear 'burst' from the fitting leading into the solenoid valve. Another noteworthy issue was found. The regeneration purge / vent outlet leads directly out into the hot lab atmosphere. During any regeneration, a small amount of TCE & material is released from the argon glove box.

A non-conformance is issued (NCR 12029) and a work permit plan is being setup. 

The line main vent line is to be replaced with lengths of 3/8" x 0.040" wt SS tubing and the regen purge/vent outlet re-linked to the nuclear ventilation. RPG has issued P100 Organic vapor / Acid gas cartridges for use in the repair.

Will update with the upcoming work permit*

 Friday, April 06, 2018, 16:21

Over the long weekend ~1000psi was used up, indicating a leak somewhere in the glove box. 

Tests over the past few days showed ~150psi leaked in 48hrs.

Tested both transfer chambers for leaks, both chambers held pressure fine/ no leaks detected.

Checked all the gloves for leaks and found a ~1mm size hole on the index finger of the right glove closest to the control box.

See photos attached.

Has been sealed off temporarily with duck tape.

Will replace glove after the weekend.

 Tuesday, April 10, 2018, 06:45: Work permit for glove(s) replacement, I2018-04-09--4 submitted yesterday. Current status: Pending. -Aaron S.

 Wednesday, January 31, 2018, 13:31

3 x lab safety mirrors have been installed in the hot lab, now all locations in the lab are visible from the door.

First mirrow in 1st photo allows visibility behind evap1; second and third mirrors in 2nd photo shows visibility between glove box and evap2, as well as visibility behind evap2

 Tuesday, January 23, 2018, 11:55

Portable glove box with everything inside, contaminated beakers, pellets and BeO dissolved in acid were all removed from the cold lab today!!!

Transported for waste removal.

 Wednesday, December 20, 2017, 09:02

Replaced Argon tank for glove box, full tank of Ar ~2350psi.

Wednesday, January 3, 2018, 11:59

Water turned back on, no leaks detected.

Glove box checked, O2 and H2O levels good.

 Tuesday, August 08, 2017, 14:28

Alarm for glove box went off this afternoon.

1person went to put arms in and alarm sounded.

Ar good = ~900psi

H2O/ O2 levels fine.

Gloves stuck out straight, but when touched very clear the pressure was low inside box.

Touch screen said ~"pressure exceeded +/-10" pressure"

Increased amount of Ar going into glove box by a small amount.

Ar going into/out of glove box ceased while alarm going off.

Pressed continue to reset and glove box went back to normal...

 Thursday, July 13, 2017, 14:53

Same pipe that had a leak in the cold lab ~1 month ago now has leak in SEM lab.

Small amount of water on floor and ceiling tile was brown and very bulgey - looked like it was about to collapse.

Small poke and the whole thing fell out. 

Tile was very brown, damp and moldy as one can see in photos

mold indicates this was a slow build up and must have started a while ago.

one can see entire pipe through hallway does not look in great condition - similar to patch where leaked.

recommend entire pipe gets replaced.

will be patched up for now and replaced at end of month.

ISAC operations called to check that equipment in the labs were OK for the non active water to be off for a short time. I gave the OK after having checked that both evaporators are off. The system will be bled for air.

Tuesday, February 28, 2012, 11:31

Hi All,

Hope you all find the TIS/RH elog useful :)  There are a few things I want to share with you.  

Did you know that you can make comments to the existing entries by using the "REPLY" function, so you can keep all the related entries in the same subjects?  Yap!  By doing that, we all keep the elogs organized :) 

If you are using shared computers, please remember to log out when you finish with the elog.  I suggest you to NOT check the "Keep me logged in..." box when you sign in. 

If you have any questions/comments please feel free to let me know.  

TIS/RH admin,

John Wong

*** All users are subscribed to the General elog.  If you do not want to receive emails from the General elog, you can unsubscribe by disable the automatic email notifications in the "Config" setting. ***

 Please see attached file for notes on the water leak from the cold lab fume hood Tuesday Feb 21.

John Wong wrote:

The evaporator#1 glovebox is leaking from the gloves, around the ports, and the base (possible more places).  It is evident that there were holes on the gloves.  When the glovebox is purged with Ar gas, one can feel that the gas is blown out from the base.   Solutions: New gloves are ordered from RENCO Co. (PO#TR189708).  New seals & glove port rings have been implemented.  More need to be done...

 See Evaporator_1 log entry

The evaporator#1 glovebox is leaking from the gloves, around the ports, and the base (possible more places).  It is evident that there were holes on the gloves.  When the glovebox is purged with Ar gas, one can feel that the gas is blown out from the base.  

Solutions:

New gloves are ordered from RENCO Co. (PO#TR189708). 

New seals & glove port rings have been implemented. 

More need to be done...  

 Tuesday, July 19, 2011, 16:22:  The planetary ball mill was in the coldlab, and now it has moved to the hot lab for the purpose of processing UCx targets.  The ball mill is installed in front of the fumehood and near by the alpha filters.  The legs are secured in the metal rings so the machine will not move away during milling.  (see attachment).

Hi All,

As requested by Pierrer Bricault,  I have added the following users to join the Targets and Ion Source (TIS) elog: 

Grant Minor, Bevan Moss, Don Jackson, Chad Fisher, Travis Cave, David Wang, Tom Lyth, Ron Kuramoto, Maico Dalla Valla, Ron Muller. 

Here is the link: https://elog.triumf.ca/TIS/

Your login names and temporary passwords are your first and last name (no spacing & all low cases, eg. Maico's user and password: maicodallavalla).  Once you're logged in, please change your password. 

I have created a few more elogs for the Remote Handling group:  RH-Cyclotron, RH-Conditioning Station, RH-Yield Station.  All new elogs entries come with the default attributes, "TYPE" and "Category".  These attributes and the dropdown options can be added and changed.  See "Evaporator_1" logbook how I have created 4 attributes: Target, Number, Source, Status. There are also many other functions, see the attachment for a few examples. Try using the elog; let me know how you would like to change it to work better for you and the group, and I'll do my best.

 If you have any question, please feel free to ask.  

TIS-Elog Administrator, 

John Wong

Tue Jun 21 16:30:48 2011: 

Re-Cap:  On June 13, 2011, the milling jar gasket seal partially came out during the high speed milling (400RPM), and the ball mill was contaminated with UO2/C mixture (See TIS/Target Production message ID#9, UCx#2, for more details).

Today, the ball mill was successfully re-commissioned.  RPG's helped to take some air samples during the commissioning, and nothing above the background was detected.  The cold-lab is now re-open back; no booties are required.  The commissioning plan and commissioning report are available on DocuShare. 

Fri May 13 11:55:37 2011:  The contain in the uranium waste container was removed and transferred into a beaker and sealed.  The total waste mass = 12.59g, over 100K CPM.  The container is double bagged and will be removed from the Hotlab.