====March 15 2022====

* **Run 05**: SMPS_20220315_Run05
   * No notes on this run.

* **Run 06**: SMPS_20220315_Run06
   * //Start Time//: 14:24 UTC
   * CPC Starting Concentration: 6300 #/cm3
   * APS Starting Pattern: Flat. Minor peaks around 3-4 μm at 4 #/cm3
   * CPC continuing to linearly drop off

* **Run 07**: SMPS_20220315_Run07
   * //Start Time//: 14:59 UTC
   * CPC Starting Concentration: 2800 #/cm3
   * APS Starting Pattern: Relatively Flat
   * CPC Concentration after 5 min: 2000 #/cm3
   * Any minor APS peaks are around 5 #/cm3
   * CPC showing asymptotic behavior, signs of flattening out.
   * Tapping valves causes spikes in CPC concentrations.

* **Run 08**: SMPS_20220315_Run08
   * //Start Time//: 15:28 UTC
   * //Filter Off//: 16:12 UTC
   * CPC pattern very different. CPC concentrations increased and now relatively stable. Different solution producing different results. CPC concentration stabilized around 380 #/cm3.
   * APS Pattern: Flat
   * After peak, seeing slight decay in concentration.

* **Run 09**: SMPS_20220315_Run09 (Acetone Run)
   * //Start Time//: 16:25 UTC
   * //Purge of Generator//: 16:29 UTC
   * Peak of purge at 100 #/cm3. Falling off quickly.
   * Second peak observed at 16:37 UTC. Unknown what the cause is.
   * //Filter Start Time//: 16:41 UTC
   * Back to background levels after purge at 16:44 UTC.
   * Train went by at 16:51 UTC. No response in data.
   * Tapping valves at 16:54 UTC. Minor peak of 40 #/cm3.

* **Run 10**: SMPS_20220315_Run10 (Propane Run)
   * //Start Time//: 18:08 UTC
   * //Filter On//: 18:09 UTC
   * CPC just background values ( ≥ 0.5 #/cm3).
   * APS has very few larger particles. Peak around 0.6 μm at ∼0.2 #/cm3.
   * 10 mins in, everything remains the same. APS peaking between 0.6-0.7 μm.

* **Run 11**: SMPS_20220315_Run11 (IPC 2021 Old Run)
   * //Start Time//: 19:01 UTC
   * CPC Concentration Peak: ∼440 #/cm3
   * APS Pattern: Flat, no real peaks
   * CPC showing linear decrease. ∼350 #/cm3 at 5 mins in. 

* **Run 12**: SMPS_20220315_Run12 (New Filtration System: Duplicate to Run 1)
   * Filtration System added: 0.2 #/cm3 background
   * CPC hovering around 20,000 with valves open. Counts averaged around 17,000 #/cm3. Background is 0.1-0.3 #/cm3.
   * Background 1 to Atmos. 15,000 ratio
   * //CPC Start Time//: 20:05 UTC
   * //Sample Start Time//: 20:30 UTC
   * 1 minute sample outside (air without dilution)
   * 1 minute sample with dilution
   * Repeat process for two of each. 
   * Generator CPC peak at 1,100 #/cm3. Dropping linearly to 750 #/cm3 3 minutes later.
   * CPC holding steady between 700-750 #/cm3.

* **Run 13**: SMPS_20220315_Run13 (WMI Formula)
   * //CPC Start Time//: 20:55 UTC
   * Initial Concentration: ∼20 #/cm3
   * Ratio Tests:
       * 13-15 background to 40,000 (1 valve)
       * 13-15 background to 80,000+ (all valves)
   * Concentrations not dipping down to previous background levels. Some contamination possible. Another bypass might be needed.
   * Running propane to clear 8" tubing. No real response. Still 8-10 #/cm3. Needs to be around 1 #/cm3.
   * More ratio tests:
       * 3-6 background to 14,000-15,000
       * 5-7 background to 12,000-13,000
       * 5-7 background to erroneous values.
   * //Sample Start Time//: 22:10 UTC (same as filter start time)
   * CPC Concentration: 3,720 #/cm3
   * APS pattern: Continued relatively flat pattern ∼ 4 #/cm3
   * Fans once again died at the end. (overheated)