= LhARA Weekly Meeting 12th May 2020 =

== Meeting details ==

14:00 BST

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== Agenda ==
 * Action items from previous meeting.
  * AK, OE, GH, HTL and TD to continue discussing details of how to proceed with the laser-target simulations.
  * JPar to email regarding fixing the best time for regular meetings on radiobiology.
 * Status of the publication.
 * Capture section.
 * Simulations.
   * Stage 1.
   * Laser-target.
 * A.O.B.
  * [raw-attachment:2020-05-07-CurieInst-first_simulations.pdf Micro-beam simulations from T. Schneider and Y. Prezado of the Curie Institut]
== Notes ==
Participants: A Kurup,  K Long, J Hughes, O Ettlinger, G Aymar, TD, CW, HTL, JPas, WS, JPar, T Greenshaw, G Schettino, J Matheson, J Pozimski, G Jones\\
Apologies: K Kirkby, K Gleason,

 * Previous action items:
  * AK, OE, GH, HTL and TD to continue discussing details of how to proceed with the laser-target simulations.
   * Plan to run simulation in 3D and compare the resolution to what we can get for an equivalent 2D simulation.
   * HTL just got an example Smilei input file from George Hicks and will go through it. 
  * JPar to email regarding fixing the best time for regular meetings on radiobiology. 
   * Will send an email to determine interest in setting up a separate meeting to discuss radiobiology activities. Need to see if we have a separate meeting or keep this in the weekly meetings.
 * Publication
  * Deadline was Monday. AK and KL received comments and is in the process of updating the paper.
  * JPas still checking and will send comments soon.
  * HTL checked dose rate calculations and found an error.
   * Discussion on calculation
    * See [raw-attachment:DoseRates.pdf slides] from HTL.
    * JPas: Can look at SRIM. JPo has used this before.
    * OE: We use SRIM for modelling radiochromic films. Problem is it only works on Windows.
    * HT ran native Geant4 and saw same results as the BDSIM simulations.
    * JPo: have SRIM on the tablet and will look at checking the energy deposition.
    * Will continue  discussion on this after the rest of the meeting.
 * Capture - CW
  * Getting things set up to do modelling. Making the right contacts to push this through.
  * Looking at VSIM. Strathclyde has an old version. May want a newer one but it's very expensive. Cluster at Strathclyde has 300Gb RAM and may be available to run simulations on. 
  * Bob has physical dimensions to look at back of envelope calculations re diocotron.
  * TD: Working on defining input file in prep for running.
 * Stage 1 simulations
  * TD: looking at tracking simulations using a transfer matrix and an idealised electric field for the lens. Discrepancy is much smaller now after discussing with WS (mainly due to the aperture needed to match the optics). 
  * Laser-target
   * HTL: See above
   * OE: GH is looking at estimating how long 3D takes, 8 years. Will look at optimising the calculation.
 * AOB
  * KL: micro-beams
   * See slides on [raw-attachment:2020-05-07-CurieInst-first_simulations.pdf Micro-beam simulations from T. Schneider and Y. Prezado of the Curie Institut].
   * Want to consider other energies.
    * JPas: to calculate the beam properties properly will require some effort. Can think about incorporating the scanning magnet details in our simulations.
  * Dose rate calculations 
   * HTL: May have found a bug, wrong value was used for the mass of the carbon beam.
   * AK to install SRIM on the group's server.
  * TG: Made contact with Carsten Welsch who is interested in scintillating fibre beam monitors.

== Action items ==
 * JPar to email regarding fixing the best time for regular meetings on radiobiology. 
 * AK to install SRIM on the group's server.