Friday, September 27, 2019, 13:54: 

There is a pin hole water leak coming from the DIW supply pipe going into the ISAC B1 hot lab - rm 06. It appears to be on the solder / joint. The leak is very small at this point. Mostly just a drip. 

Fault 12701

 Fritsch Pulverisette 5 Ball Mill status:

Wednesday, December 18, 2019, 13:48: 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

See attached.

Checked in on the labs and other equipment yesterday. Everything looks ok, including the glove box Ar supply. Recorded O2 and H2O values in the log book.

Anders Mjos wrote:

Checked in on the labs and other equipment yesterday. Everything looks ok, including the glove box Ar supply. Recorded O2 and H2O values in the log book.

 Checked in on labs again on Wednesday April 22nd. See attached for glove box details

 Temp was noted to be high @ 50 deg C.

Adjusted the regulators to 35 deg C. Ran both the eye-wash station & shower. Waited 20 minutes. Ran them again and tuned.

Monday, July 13, 2020, 10:00: Complete. 

  Fritsch Pulverisette 5 Ball Mill status:

Monday, July 13, 2020, 11:22: 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

 Odd noises reported. Darwin & Marla. "Like a rock caught in a fan"

AS -  Re-installed bolts to run. Note, balancing feet underneath were uneven. Especially the front right foot was roughly 3/8" out of position. No jars installed.

Ref: Document-42673 - Commissioning Plan - Planetary Mill Pulverisette 5. Use as a guideline. 

Wednesday, September 16, 2020, 10:39: Run @ 50 RPM / 1 min. Operation sounds ok. Balanced. 

Wednesday, September 16, 2020, 10:41: Run @ 100 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:43: Run @ 150 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:45: Run @ 200 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:48: Run @ 250 RPM / 1 min. Operation sounds ok. Balanced, but there is a "hum" that starts around 230 RPM. Disappears around 270 RPM

Wednesday, September 16, 2020, 10:50: Run @ 300 & up to 350 RPM / 1 min. Operation sounds ok. Balanced & quiet. No "hum"  

Wednesday, September 16, 2020, 10:57: Run @ 400 RPM / 1 min (Max RPM). Operation sounds ok. Balanced & quiet. 

Setup Jars w/ safe-lock assembly.

Jar A: 6349 g

Jar B: 6368 g

Wednesday, September 16, 2020, 11:25: Run @ 100 RPM / 1 min. Balanced & quiet. Tighten safe lock.

Wednesday, September 16, 2020, 11:27: Run @ 200 RPM / 1 min. Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:33: Run @ 300 RPM / 1 min. Operation sounds ok. Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:37: Run @ 400 RPM / 1 min (Max RPM). Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:52: Review w/ Darwin & Marla. Operation sounds normal. 

Note* When performing maintenance. Check the balance / feet positions. Confirm there are no loose screws as well. 

Wednesday, September 16, 2020, 14:53: Checked and re-checked with the back panel removed. Note, as the jars were loaded with graphite, a crackling sound did occur. Further testing w/ & w/o. It may be the jars with the loaded materials. Will test with water in the jars. Panel re-installed. Ran again @ 100 & 400 RPM / 1 min (Max RPM). Operation sounds ok. Balanced & quiet. - AS

   Fritsch Pulverisette 5 Ball Mill status:

Monday, July 13, 2020, 11:22: 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

Tuesday, February 09, 2021, 06:53: Evaporator 2 off. Evaporator 1 ok, Fume hoods ok. Ar glove box off. Ready for planned power outage.

Should last from 0800 to1200.

Tuesday, February 09, 2021, 11:30: Confirmation there was no EF14/15 trip. Ar Glove box on. Evaporator 2 back on.

    Fritsch Pulverisette 5 Ball Mill status:

Tuesday, August 03, 2021, 10:33 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

 Tuesday, December 07, 2021, 09:23:

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

Tomislav and John Chow tested the spare bias supply located in the rack of the electrical services room. This is a FUG HCN 1400 M-60000, serial 11590-01-01, PO TR131986 but when it was installed online we found it could not go above about 40kV. It was replaced but not tested until now. Tomislav says:

"We started testing the FuG this morning, in manual mode it is possible to reach 60 kV, 59.75 according to the display and with the load we have 1.6 mA. From the DC HV point of view, at least in manual mode no problem.

When we looked at the HV through a 1000:1 voltage divider in the oscilloscope there is a situation, the coupling in graphs 4 and 5, attached, is AC, and it was taken at 55 kV. The 200 mV scale represents 200 V because of the divider. There is a strong noise of 200 Vpp at 55 kV, it can be interpreted as ripple of 0.36%, we usually ask in FuGs 10^-5 or 0.001%. Also there are random peaks of 1 V in the divider (1000V in the output) that indicate a possible failure of the PWM circuit that generates the high voltage.

Because of issues like these Friedhelm replaced the old ITW power supply, these instabilities caused problems in the experiments, so I am not sure if it is necessary to continue testing this PS. We can only do a remote test that I do not expect to give different results from what we have now, maybe we will find an issue and it does not go beyond 40 kV, and we can check long term stability, the DC value should remain very constant for at least 8 hrs."

Fritsch Pulverisette 5 Ball Mill status:

Tuesday, July 12, 2022, 11:06:

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

 Fritsch Pulverisette 5 Ball Mill status:

Friday, December 16, 2022, 07:35 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

 Thursday, February 02, 2023, 10:14: Cold Lab Eyewash & shower station ran. Ok.

  Fritsch Pulverisette 5 Ball Mill status:

Friday, June 30, 2023, 12:20:

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

Evap1:  Cleaned and checked seals.  Oil level could not be clearly determined, but are consulting with pump group to check.

Evap2: Cleaned and checked seals. 

   Fritsch Pulverisette 5 Ball Mill status:

Tuesday, December 12, 2023, 13:11:

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

 Friday, February 09, 2024, 11:01: Epilog laser cutter operates. OK

 ISAC-1 B1 Hot Lab actinide mass balance calibration was carried out on March 27, 2024, at 11:10 a.m. with an accuracy of 0.00%.