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Entry  Thursday, October 13, 2016, 18:05, Laura Lambert, Ta, 41790-5, LP-SIS, In progress, Temperature measurements for Ta#50 
    Reply  Saturday, October 15, 2016, 12:42, Aurelia Laxdal, Ta, 41790-5, LP-SIS, In progress, Temperature measurements for Ta#50 
       Reply  Sunday, October 16, 2016, 17:55, Aurelia Laxdal, Ta, 41790-5, LP-SIS, In progress, Temperature measurements for Ta#50 
          Reply  Tuesday, October 18, 2016, 09:23, Laura Lambert, Ta, 41790-5, LP-SIS, Done, Temperature measurements for Ta#50 
Message ID: 332     Entry time: Saturday, October 15, 2016, 12:42     In reply to: 331     Reply to this: 333
Author: Aurelia Laxdal 
Target Material: Ta 
Target Oven W.O#: 41790-5 
Source: LP-SIS 
Status: In progress 
Subject: Temperature measurements for Ta#50 

Laura Lambert wrote:

Thursday, October 13, 2016, 18:04

Target loaded into evap2

No heat shields.

Both endcaps inserted and expanded.

Rh foil inserted [when inserting, the Ta rod used to expand the Rh foil inside the ionizer tube snapped off inside the container - this piece was able to be shaken out and is no longer inside]

Chamber pumped down.

HS water valves opened, no leaks detected
 
Tapped up manually to 35A
 
Vacuum stable, IGP1 = 5e-7 Torr
 
Initiating auto-ramp.
 
OMEGA slope = 0.98

TBHT will be ramped up to 230A at 1.0A/min.

TGHT will be ramped up to 300A at 2.0A/min.

Final desired temperature = 1900C


Friday, October 14, 2016, 13:28

TGHT and TBHT had reached 300A/ 230A respectively.

Power bump ~10min ago caused evap2 to trip off.

Tapped back up manually to 35A.

Re-initiating auto ramp now.


 

Friday October 14: the target was ramp up to 300A/230A after Laura started it. Then, I cooled down at 6pm before leaving TRIUMF. <br>

Saturday October 15: restated the auto-ramp for Ta#50 in EVAP2. It's currently set to go to 300A/230A.

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