= LhARA Weekly Meeting 12th May 2020 = == Meeting details == 14:00 BST Zoom details: {{{#!comment https://cern.zoom.us/j/98161361260?pwd=K1BseEF6ckNyc1RRWld4ODhiUDVsUT09 }}} Meeting ID: 981 6136 1260 Password: ''See meeting invite email'' United Kingdom: +44 203 481 5237\\ +44 203 966 3809\\ +44 131 460 1196\\ +44 203 051 2874\\ 0800 031 5717 Meeting ID: 981 6136 1260 Password: ''See meeting invite email'' Find your local number: https://cern.zoom.us/u/acs7l7Y1Bc Join by SIP 98161361260@188.184.89.188 98161361260@188.184.85.92 Join by H.323 188.184.89.188 188.184.85.92 188.184.110.70 188.185.118.153 188.184.87.135 Meeting ID: 981 6136 1260 Password: ''See meeting invite email'' == 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, T Dascalu, C Whyte, HT Lau, J Pasternak, W Shields, J Parsons, 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.