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Richardson Lab Experimental Log, Page 10 of 10

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ID	Date	Author	Type	Category	Subject	Text
306	Tue Jan 16 16:11:41 2024	Aiden	Update	VAC		[Aiden,Luis] Below is the data for the most recent bake. I believe the chamber is cleaner than it is actually showing as the
307	Wed Jan 17 15:47:49 2024	Aiden	Update	General	Resistors for Heater Elements	Power Res (Ohm) RTD Res (Ohm) Heater 1= 73.6; 81.8 Heater 2= 70.4; 82.1 Heater 3= 71; 84.5 Heater 4= 71.5; 80 Heater
308	Thu Jan 18 15:13:37 2024	Aiden	Update	VAC	VAC Heating System Update	[Aiden] Took more data today and the chamber and elements are showing an even lower HC level than we have gotten before.
314	Fri Feb 2 19:08:20 2024	Aiden	Update	VAC	1st Hot Element RGA Scan	Here are the measurements for the RGA scan of the elements while on at around 160C. The pressure of the chamber during the test
316	Mon Feb 5 14:17:52 2024	Aiden	Update	VAC	Heater Element RGA Scan	Here are the new RGA scans for the powered Heater elements. The pressure at the time of taking data was 2.88 e-8 torr. The HC
319	Thu Feb 8 17:37:48 2024	Aiden	Update	VAC	Heater Element RGA Scan	Took more RGA data now that the heaters are powered by 18V. The pressure of the system during the data taking was 3.8 e-8 torr.
320	Mon Feb 12 17:35:47 2024	Aiden	Update	VAC	Heater Element RGA Scan	Took more RGA data before and after increasing the heater elements to 300 degC and before heating them up.
325	Tue Feb 13 12:34:04 2024	Aiden	Update	VAC	VAC Heating System Update	Here is an overlay with for all the heating steps done with the heater elements.
328	Mon Feb 19 14:17:50 2024	Aiden	Update	VAC	Heater Element RGA Scan	Three days after the completion of Bake 11, the Heater elements RGA scan looks much cleaner. The HC level is back down to 33 e-10 torrl/s
332	Tue Feb 20 18:08:24 2024	Aiden	Update	General	Degassing the RGA	I took an RGA measurement before and after degassing the RGA. Both data was taken with the Argon open. The pressure before taking
340	Mon Feb 26 15:15:39 2024	Aiden	Update	General	Vacuum Chamber Baking Update	Started Bake 12 on Wednesday Feb. 21 and turned the bake off on Saturday Feb. 24. This was a normal low temp bake with the PID controllers
348	Fri Mar 15 16:58:55 2024	Aiden	Update	VAC	Vacuum Chamber Frosti Testing	[Luke, Luis, Aiden] On Thursday, March 14 - Took preliminary RGA scans of the empty chamber to compare later on. Vented the chamber
350	Tue Mar 19 15:22:27 2024	Aiden	Update	Clean & Bake	FROSTI Legs Clean and Bake	[Aiden, Luke] Cleaned and baked the Cal Tech FROSTI legs and showed Luke the procedure on how to clean parts.
352	Sun Mar 24 11:49:27 2024	Aiden	Update	General	FROSTI RGA Scan	Took RGA data 1 day after the conclusion of Bake 13. Bake 13 ended on Saturday March 23, the RGA data shown was taken on Sunday
353	Sun Mar 24 11:50:37 2024	Aiden	Update	Clean & Bake	Cal Tech FROSTI Parts	Bagged the FROSTI legs and feet after the conclusion of the clean and bake. They are double bagged and sitting in the flow bench.
367	Mon May 13 14:48:27 2024	Aiden	Update	VAC	New Vacuum Chamber Design	I created a new model for the vacuum chamber based on the ideas from last week's meeting. It should be noted that we can not have the
372	Mon Jun 3 09:24:48 2024	Aiden	Update	VAC	Vacuum Chamber Rendering	Here is a new render of the vacuum chamber that includes the 2.75 tee to place the Argon leak right next to the RGA. The conical reducer
87	Mon May 1 17:10:25 2023	Julian, Cao	Physics	VAC	Installing Pirani gauge and RGA probe onto to vacuum chamber	[Julian, Cao] 03:00 pm: Particle count : Zone 3

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