| 54 | 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\\ |
| 55 | Apologies: K Kirkby, K Gleason, |
| 56 | |
| 57 | * Previous action items: |
| 58 | * AK, OE, GH, HTL and TD to continue discussing details of how to proceed with the laser-target simulations. |
| 59 | * Plan to run simulation in 3D and compare the resolution to what we can get for an equivalent 2D simulation. |
| 60 | * HTL just got an example Smilei input file from George Hicks and will go through it. |
| 61 | * JPar to email regarding fixing the best time for regular meetings on radiobiology. |
| 62 | * 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. |
| 63 | * Publication |
| 64 | * Deadline was Monday. AK and KL received comments and is in the process of updating the paper. |
| 65 | * JPas still checking and will send comments soon. |
| 66 | * HTL checked dose rate calculations and found an error. |
| 67 | * Discussion on calculation |
| 68 | * See slides from HT. |
| 69 | * JPas: Can look at SRIM. JPo has used this before. |
| 70 | * OE: We use SRIM for modelling radiochromic films. Problem is it only works on Windows. |
| 71 | * HT ran native Geant4 and saw same results as the BDSIM simulations. |
| 72 | * JPo: have SRIM on the tablet and will look at checking the energy deposition. |
| 73 | * Will continue discussion on this after the rest of the meeting. |
| 74 | * Capture - CW |
| 75 | * Getting things set up to do modelling. Making the right contacts to push this through. |
| 76 | * 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. |
| 77 | * Bob has physical dimensions to look at back of envelope calculations re diocotron. |
| 78 | * TD: Working on defining input file in prep for running. |
| 79 | * Stage 1 simulations |
| 80 | * 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). |
| 81 | * Laser-target |
| 82 | * HTL: See above |
| 83 | * OE: GH is looking at estimating how long 3D takes, 8 years. Will look at optimising the calculation. |
| 84 | * AOB |
| 85 | * KL: micro-beams |
| 86 | * 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]. |
| 87 | * Want to consider other energies. |
| 88 | * JPas: to calculate the beam properties properly will require some effort. Can think about incorporating the scanning magnet details in our simulations. |
| 89 | * Dose rate calculations |
| 90 | * HTL: May have found a bug, wrong value was used for the mass of the carbon beam. |
| 91 | * AK to install SRIM on the group's server. |
| 92 | * TG: Made contact with Carsten Welsch who is interested in scintillating fibre beam monitors. |
| 93 | |
| 94 | == Action items == |
| 95 | * JPar to email regarding fixing the best time for regular meetings on radiobiology. |
| 96 | * AK to install SRIM on the group's server. |