| | 56 | * Action items |
| | 57 | * JPar to look at spot scanning. |
| | 58 | * Trying to arrange a date to meet Karen. Could be Feb. |
| | 59 | * Spot scanning may not be necessary, can do many things with passive scattered. |
| | 60 | * KL: Energy too low to passively scatter. |
| | 61 | * KL: For microbeams: |
| | 62 | * Ideally like to get back to laser target spot size. ~70 micron. |
| | 63 | * Other people do few hundred microns width beams. |
| | 64 | * Discussion re fixing spot size for spot scanning. |
| | 65 | * Choose 100 micron spot size for scanning. |
| | 66 | * System updates |
| | 67 | * Capture. |
| | 68 | * Summary of discussion on 20th Dec. |
| | 69 | * Calculations from Colin on differential pumping. |
| | 70 | * Prelim calculations show can have 2 orders of magnitude pressure differential. |
| | 71 | * Need to include investigating this experimentally into the R&D plan. |
| | 72 | * CW spoke to Bob Bingham who is interested in the lens. |
| | 73 | * Beam transport |
| | 74 | * BDSIM model updated to include all features. Most of Stage 2 parts are there only as placeholders, waiting for physics design to be finalised. |
| | 75 | * Looked at countering space charge by neutralising more at the start to improve transmission. |
| | 76 | * Include phase rotation/bunch compression RF cavities. |
| | 77 | * JPas: I can provide bunch length at extraction and energy spread. |
| | 78 | * JPoz: I can then work out voltages and drifts. |
| | 79 | * End stations |
| | 80 | * Going over floor plan. |
| | 81 | * Second end station will be incorporated. |
| | 82 | * WS to send JPar snapshot of beamline. |
| | 83 | * Meeting with Birmingham re FLASH irradiations. They will set up a FLASH R&D facility and hope to start irradiations end of Jan to early Feb. |
| | 84 | * AK: Have they done anything on dosimetry. |
| | 85 | * Not yet. |
| | 86 | * KL: Tim Greenshaw is giving a seminar in Birmingham. |
| | 87 | * AOB |
| | 88 | * Schedule and costing from KL. |
| | 89 | * KL to circulate the project and request WPMs to update their parts. |
| | 90 | * JPas: deadline for APAC on 9th. |
| | 91 | * IOP HEPP and PAB meetings, need to submit abstract by 24th Jan. |
| | 92 | |
| | 93 | == Action items == |
| | 94 | * WS to send JPar snapshot of beamline. |
