ELOG ligo-ex

ligo-ex ligo-ds

Richardson Lab Experimental Log, Page 11 of 12

Not logged in

List | Find | Login | Help

Full | Summary | Threaded

592 Entries

Goto page Previous 1, 2, 3 ... 10, 11, 12 Next

ID	Date	Author	Type	Category	Subject	Text
51	Tue Mar 14 18:21:41 2023	Aiden	Summary	General	Clean and Bake batch 8	Starting off Peter and I refilled the deionized water barrel. Then Aiden Cleaned and Bake the FROSTI arms and bases in liquinox for
52	Fri Mar 17 19:46:39 2023	Aiden	Summary	General	Clean and Bake batch 9	Bagged and Tagged the reflector arms and bases and placed them inside the clean room. Total of 2 bags used. Cleaned and Baked parts in
60	Mon Apr 3 17:04:05 2023	Aiden	Summary	General	IDP Scroll Pump Assembly	Aiden installed the isolation valve and the exhaust silencer kits on the IDP-3 Scroll pump. The entire assembly still needs to
69	Wed Apr 12 10:53:02 2023	Aiden	Summary	General	Valve Cleaning	Bagged and Tagged the parts from batch 10 and placed them inside the clean room. Then cleaned the last gate valve in liquinox for
72	Mon Apr 17 17:06:49 2023	Aiden	Summary	General	Clean and Bake batch 11	Cleaned the Viton O-Ring for the main chamber in Liquinox for 10 minutes. Then put it in the oven to back for; 1. Ramp to 100 degC
77	Mon Apr 24 17:38:45 2023	Aiden	Summary	General	Clean and Bake Batch 12	Today I Bagged and tagged the o-rings from batch 11 and placed them inside the clean room. I also cleaned batch 12 parts in liquinox
80	Thu Apr 27 09:48:34 2023	Aiden	Summary	General	Batch 12 Bagging	I took batch 12 out of the oven and put them in a bag and placed the bag inside the clean room in the first large stainless steel container. I
96	Wed May 10 10:49:34 2023	Aiden	Update	General	RGA Software	[Aiden, Cao] Went over how to use the RGA software, how to change the graph units, scaling and mass detection. Also went over
111	Wed May 31 16:18:41 2023	Aiden	Summary	General	Mock FROSTI	Finished assembly on the Mock FROSTI so it is ready for the fit test at LIGO lab.
115	Tue Jun 6 16:04:46 2023	Aiden	Update	General	Water	Aiden went and refilled the de-ionized water to continue clean and bake batches.
121	Tue Jun 13 13:25:05 2023	Aiden	Summary	Clean & Bake	Clean and Bake Batch 13	Cleaned and Baked the new 1.33" and 2.75" blanks for the vacuum system. Cleaned them with liquinox in the ultra sonic washer for
126	Fri Jun 16 17:40:28 2023	Aiden	Update	Clean & Bake	Clean and Bake Batch 14	Cleaned and Baked the new and 2.75" copper gaskets for the vacuum system. Cleaned them with liquinox in the ultra sonic washer for
146	Wed Jul 5 16:02:12 2023	Aiden	Update	Clean & Bake	Clean and Bake batch 14 Bagging	Bagged and Tagged the 2.75" copper gaskets from Batch 14 and placed them into the clean room on the work bench.
148	Thu Jul 6 16:16:03 2023	Aiden	Summary	VAC	Vacuum Chamber Baking Update	Pressure Measured Before Removing Gauge 2.31 E-7 Torr. Went in and turned on the heating tape in increments of 30 degC
150	Fri Jul 7 15:11:39 2023	Aiden	Update	VAC	VAC System Heating Update	The temperature of the flange connecting to the turbo pump after reaching equilibrium is 74 degC. This means that it is safe to
152	Mon Jul 10 13:23:23 2023	Aiden	Update	VAC	VAC System Heating Update	Checked on the system today. The flange on the turbo pump has reached an equilibrium temperature of 87 degC when set at 150 degC.
153	Thu Jul 13 14:56:43 2023	Aiden	Update	VAC	VAC System Heating Update	Checked on the vacuum system today to change the PID controls back to their default values in order to try and get the temperature
156	Fri Jul 14 14:37:25 2023	Aiden	Update	VAC	VAC System Heating Update	Checked on the vacuum system and it looks like it will either need to be increased in temperature or baked for a longer time.
160	Mon Jul 17 13:50:41 2023	Aiden	Update	VAC	VAC System Heating Update	Started to cool down the chamber today. Final temperature readings of the chamber were 146C and 91C for the body and cross
161	Mon Jul 17 14:01:41 2023	Aiden	Update	VAC	VAC System Heating Update	The insulation on the lid of the vacuum chamber has some discoloration and it may be wise to place a sensor closer to this
168	Thu Jul 20 18:03:19 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	Took another set of RGA data after the second bake has cooled down to 27 degC. Just by visual comparison to the other graphs,
179	Fri Jul 28 13:46:17 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	Took some more data to look at the HC count. Initial data was from leaving the Argon leak closed and then left it open for
184	Tue Aug 1 12:10:03 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	Dr. Richardson and I took off the insulation on the lid again to add more insulation in-between the heater tape folds in addition to what
185	Tue Aug 1 12:48:41 2023	Aiden	Update	Cleanroom	Pre Filter Change	Changed the pre filter inside of the 3 stage HEPA system next to the soldering station. It was rather dirty and I have attached
188	Wed Aug 2 17:02:38 2023	Aiden	Update	VAC	VAC System Heating Update	Moved the temperature sensor on the PID controller to one of the switch backs on the lid. Also started the next
189	Thu Aug 3 16:00:25 2023	Aiden	Update	VAC	VAC System Heating Update	Check on the temperature of the bake today to see the equilibrium temperatures. With both of the PID controllers set to 150 C,
190	Thu Aug 3 17:47:51 2023	Aiden	Update	VAC	VAC Heating System Update	Did some further testing to determine if it was within reason to increase the temperature of the chamber. I used a thermometer and
192	Fri Aug 4 15:21:33 2023	Aiden	Update	VAC	VAC System Heating Update	Checked on Bake 3 today and the temperature sensors read 126 C and 91 C for the chamber barrel and turbo pump flange respectively.
195	Tue Aug 8 15:31:26 2023	Aiden	Update	VAC	VAC Heating System Update	Vacuum Chamber equilibrium temperature for bake 3 are 126 C and 88 C for the chamber wall and turbo pump flange respectively.	10x
201	Thu Aug 10 14:36:00 2023	Aiden	Update	VAC	VAC System Heating Update	Came in to install one of the Full range gauges. Checked the temperature first of the cross and it was reading 30 C. After installing
203	Thu Aug 10 18:32:39 2023	Aiden	Update	VAC	VAC System Heating Update	[Dr. Richardson, Aiden] DO NOT TOUCH ANY VALVES ON THE CHAMBER. THERE IS A PRESSURE DIFFERENTIAL
205	Fri Aug 11 18:32:00 2023	Aiden	Update	VAC	VAC System Heating Update	[Dr. Richardson, Aiden] Large Update Removed most of the insulation on the chamber in order to pull back some of the heater tape	11x
208	Tue Aug 15 16:04:23 2023	Aiden	Update	VAC	VAC Heating System Update	Pulled off the rest of the heater tape along with the aluminum tape left behind. The aluminum tape adhesive left behind a	6x
212	Thu Aug 17 15:02:44 2023	Aiden	Update	VAC	VAC Heating System Update	Put the heating tape back on and made sure to have 4 coils around the barrel of the chamber. To make this happen I did not	11x
213	Thu Aug 17 15:18:48 2023	Aiden	Update	VAC	VAC Heating System Update	Relocated the PID controllers so that the heating tape could be plugged in. In the picture the left one controls the top half
214	Mon Aug 21 17:13:25 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	Came in to take RGA data and found the turbo pump drawing .38 Amps. This was much higher than what it was on Friday. I investigated
215	Mon Aug 28 14:43:50 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	The PID controllers were turned off on Friday and the chamber was left to cool over the weekend. Just took data and it looks like
216	Tue Aug 29 19:09:21 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	Here are some more plots with the RGA data take August 29. It seems that more pumping time has led to the HC levels being dramatically
217	Tue Aug 29 22:07:38 2023	Aiden	Update	General	Electronic Bench	Dr Richardson is working on mounting more power supplies in the server rack and is using the electronics bench. Be aware to
218	Thu Aug 31 12:56:29 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	Took some more RGA data to see if the HC levels have further declined since bake 4 and it seems that it has started to plateau with
219	Fri Sep 1 19:21:19 2023	Aiden	Update	VAC	VAC System Heating Update	Started bake 5 today. This will hopefully be a longer and hotter bake with it lasting 6-7 days at around 150 C. The pressure in
220	Tue Sep 5 16:43:19 2023	Aiden	Update	General	VAC System Heating Update	Checked on bake 5 today after 3 days of equilibrium. The RGA cross is at 106 C and the turbo pump cross is at 74 C. This was reached while
222	Fri Sep 8 16:10:43 2023	Aiden	Update	VAC	VAC System Heating Update	Turned off the PID controllers to let the chamber cool down. Final temperatures for the RGA cross and Turbo pump cross were 113
223	Mon Sep 11 16:02:42 2023	Aiden	Update	VAC	VAC System Heating Update	The chamber has cooled down from bake 5 and I took the first set of data. The pressure measured during the RGA measurements reached
224	Tue Sep 12 15:31:31 2023	Aiden	Update	Clean & Bake	Clean and Bake Batch 15	Cleaned and Baked the SS screws for the heater mount. Check the Clean and Bake data base on the website to get a precise list of the
226	Fri Sep 15 17:33:35 2023	Aiden	Update	VAC	Vacuum Chamber Baking Update	Took some more RGA data and see that the chamber has gotten much cleaner since monday. Next step would be another bake with some focus
227	Thu Sep 28 15:17:13 2023	Aiden	Update	Clean & Bake	Clean and Bake Batch 16	Bagged and Tagged the parts from batch 15 and started baking batch 16 which includes the 6" to 8" reducer.
232	Tue Oct 3 15:07:48 2023	Aiden	Update	Clean & Bake	Clean and Bake Batch 17	Cleaned and baked all the stainless steel parts in Batch 17. Check data base for more details on this.
233	Sat Oct 7 17:10:27 2023	Aiden	Update	Clean & Bake	Clean and Bake Batch 18	Bagged and tagged the parts from Batch 17 and placed them in the clean room on the optic table. Also started an aluminum batch
237	Mon Oct 9 21:41:24 2023	Aiden	Update	Clean & Bake	Clean and Bake Batch 19	Bagged and tagged the parts from batch 18. Started the Copper batch that includes all the gaskets needed to start the vacuum chamber

Goto page Previous 1, 2, 3 ... 10, 11, 12 Next

ELOG V3.1.3-7933898