= LhARA Radiobiology Meeting: 01Oct26; 14:00 BST =

**ZOOM:** https://imperial-ac-uk.zoom.us/j/98220889714?pwd=SM90vOF7BKSXoU3mD9q7OwBQo4IVB3.1 

- Planning Document: https://docs.google.com/document/d/1OTARVtxhLRu02S6CLdRDB2QlGvCqDfZ3aWBifjIFs_Q/edit?tab=t.0

- Trello: https://trello.com/invite/b/67587c515b0c69656ee78b48/ATTIe86f94b24e3e5884e4cb87e5ed3b89ab64321B83/poplar

Attended: KL, MH, CW, TP, SdL, PB, RH, RA, FA, CD

== Meeting Notes == 

1. Alternate Beamlines
 - ELIMED part of the next ELI submission
  - There appear to be calls for ELIMED every year
 - 20th October 12:00 (noon)
  - Unlikely to make this deadline
  - Cannot make a submission repeating the same missing details 
 - BUT:
  - **Calvin to share the document**
  - **Ken and Josie to nudge the bioplan into action**

2. BioPrep
 - Alex seen SCAPA
  - Yes and transwells have been agreed to be the best way forward
 - Transwells
  - Cost ~£1000
 - February puts the bio team on a timetable
 - Need a stronger bio/SCAPA presence at these meetings
  - **Colin to reach out to Marie**
  - **Colin to reach out to the SCAPA team to confirm February is our goal**

3. Instrumentation
 - RCF
  - Updates on delaminated EBT4
   - No longer sold unless for 100 boxes or more
   - Need 35 more boxes to get an order
  - Mark found a different type of film
   - Tony has requested a free sample to check it out
   - Tony has two master's students on cmos and can compare to the new film
 - SciFi
  - Construction pad is built
  - Appears to be no sensitivity to rotation of the array (as expected)
 - Thin wall ion chamber
  - On-line detector uses protons
  - Thin window (10s of um of Mylar)
  - Concern is mainly recombination at the time of ionisation because of the intense pulse
   - Will still see a residual ionisation
 - Diamond detector
  - Off-line using the electrons
  - Need a better understanding of the electrons to understand its feasibility
 - **Richard to discuss thin wall detectors and diamond detectors at a Tuesday meeting**
 - Calorimeter
  - Measure the energy by measuring the temperature change in graphite
  - Most stable and understood measure of dose
  - If we had £10K can ask the same company NPL asked to make a transcal detector thin enough for our energies
  - Sam Flynn's detector that has been discussed before
  - Longer term benefit is thatthey're known compared with something like air fluoresence which is not as well known
 - Further discussion:
  - Need to group these diagnostics into:
   - In-beam beamline diagnostics
   - Dosimetry run at the same time as cells. Measuring the dose in the cells. eg ion-acoustic
   - Measuring the dose of the low-energy beams to establish stability
  - As always, beamtime available in Birmingham
   - **Ken, Simon, Calvin and Josie to discuss next week**

4. SCAPA
 - Updates
  - No update

5. Review Trello: https://trello.com/invite/b/67587c515b0c69656ee78b48/ATTIe86f94b24e3e5884e4cb87e5ed3b89ab64321B83/poplar

6. DoNM 
 - 15/10/26

7. AoB 
- Funds
 - Have £5k
 - Ken meeting this afternoon to discuss £14k Imperial money

=== Summary of actions required ===

In-Beam Diagnostics
- **Unassigned**: Acquire a glass sheet
- **Unassigned**: Get a new RCF batch and calibrate
- **SdL**: Simulate energy deposited in transport fibres
- **KL, CD, JMcG, SdL**: Design a system to make full scifi prototypes
- **KL, CD, JMcG, SdL**: Make a full scifi prototype
- **KL, CD, JMcG, SdL**: Discuss visit to Birmingham to test SciFi
- **RW, CD**: Study the correlation between laser diagnostics and mean dose
- **CW**: Investigate the feasibility of ICTs for our beamline
- **MH**: Investigate LET detector
- **CW**: Ask Narender about air fluorescence implementation
- **JMcG**: Investigate using IF as a dosimeter
- **GS, RH**: Investigate fast electron diagnostic
- **TP**: Investigating commerical delaminated EBT4

Bio Next Steps
- **EM, CD, JMcG**: Write up technical summary of Phase 2
- **EM, MB, RA, JMcG**: Write up a biology plan for a 2 PMQ setup
- **Unassigned**: Obtain an inverted microscope
- **Unassigned**: Obtain multi-chamber haemocytometers (Might be able to use Birmingham's)
- **Unassigned**: Obtain a thermostat for the incubator
- **EM**: Send cells to Rosh and Marie
- **EM, MB, RA, JMcG**: Run controls to examine how long the cells can survive vertically
- **CW, AM**: Show Alex around SCAPA
- **MB, RA**: Send specifications of and transwells to Tony to test at Birmingham
 - **DONE**
- **MB, RA**: Test transwells with x-rays
- **KL**: Share paper with interesting cell dishes (RCF sandwich)
 - **DONE**

Beamline Modelling
- **Unassigned**: Investigate how to improve the beamline beyond CV=8%
 - **DONE**
- **CD**: Examine energy spectra variation
- **JMcG, ED**: Discuss spectra fits and SCAPA source divergence
- **JMcG**: Talk to Darsebury to get more information on sensible dipole parameters
 - **DONE**

Alternate Beamlines
- **JMcG**: Simulate BELLA
- **JMcG**: Simulate ELI
- **CD**: Planning doc for ELI

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