= LhARA radiobiology; meeting: 26Jun25; 14:00 BST =

**Present:** CW, RW, RG, HO, CP, EM, JMcG, AFR, CD

== Notes ==

1. //[wiki:Research/LhARA/RadiationBiology/Meetings/2025-06-12 Minutes and actions]: //
  - CW: Check on exhausts and talk to the "owner" of the backup cabinet
   - **DONE**
  - BT/RW: Send Calvin the proton energy spectrum.
   - **STANDS**
  - JP: Talk to Fisher and get a plan of action for the order and delivery of consumables to Strathclyde
   - **STANDS**
  CW: Speak to autoclave facility for bio waste disposal.
   - **DONE**

2. //Strathclyde Updates: // RG, RW, CW \\
- Laser damage and beamtime:
  - No major update.
- Still on for July run.
  - Characterising the source to begin ~the week of the 14Jul
  - Quad alignment and set up to be from 22Jul - 25Jul (21Jul is a bank holiday)
   - Include cell sample for this run.
  - Funding can extend until end of the financial year.
   - Need to change the times of no-cost extensions (Emma to chase Tony about this).
  - Bio phase to occur after September

 - Bio-safety cabinets
  - Fixed!
  - Recalibration to be completed in the next week

 - Waste and plastic consumables:
  - Plan confirmed to use the autoclave in the Wolfson building.
   - Need to train someone to carry the waste over.
   - Marie Boyd is the back up.
  - No update from Jason as off, but had been contacted by Marie.
 - RCF stack fiduciary:
  - Larger stack cut and notched
  - Smaller stack more tricky. 
  - Can send to Rutherford for laser cutting

3. //Field mapping, preparation of PMQs: // HO/BS \\
 - Everything delivered or on delivery to Strathclyde. 
 - Expected by Monday (30Jun)
 - Marked with a sharpie to indicate which way is forward.
  - F quad has the lettering the right way around when placed correctly in beamline.


4. // PMQ Positioning/Beam optimisation: // CD, RG, JMcG \\
 - Tony produced simulations with an average of 5.6KeV/um 
 - Previous simulations of 10MeV had shown an average of 4.8KeV/um
 - Waiting for overlay from Tony to better understand distribution of LET


5. //Simulation update: // KL, CD \\
 - G4 simulation of RCF stacks complete. 
 - Verified with SRIM and in comparison with LLO.
 - Does not show the splitting effect that was hoped for
 - Further verification with TOPAS simulating an RCF stacks

6. //Bioprep: // EM/MH \\
 - Cultures appeared to have survived.
 - Results will be ready before the next meeting


9. DoNM
 - 10Jul25 14:00 **BST**

10. AoB \\
 - Ross' last meeting :(

=== Summary of actions ===
 - All the elements for the beamline are now in place
 - **TP (and others?):** Chase up no-cost extensions
 - **RW:** Cut and notch smaller RCF stack
 - **TP:** Overlay previous LET distribution on newer
 - **CD/AFR:** Verify G4 RCF stack




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