| | 11 | == Actions == |
| | 12 | || 23-01-24-01 || '''All''' to prepare document for the milestone to update the baseline || In progress |
| | 13 | |
| | 14 | == Notes == |
| | 15 | Present: Neil Bliss, Clive Hill, Mark Johnson, Ajit Kurup, Keith Middleman, Jaroslaw Pasternak, Lilli Platt, Rehanah Razak, Will Shields, Colin Whyte\\ |
| | 16 | Apologies: Ken Long, Hywel Owen |
| | 17 | |
| | 18 | * Keith Middleman senior vacuum design engineer |
| | 19 | * Looking at the gas flow through the target vessel interface with the first gabor lens. |
| | 20 | * Using MOLFLOW+ (free software for accelerator vacuum modelling ). |
| | 21 | * Looked at gas desorption from the target in a diffuse scenario and for different narrower angular spreads. |
| | 22 | * CW: Would be good to do an experiment. |
| | 23 | * From the simulations it looks like the vacuum should be OK but depends on how strong the beaming affect is. |
| | 24 | * Need to also consider gas desorption from the other surfaces of the target vessel. |
| | 25 | * KM will prepare a paragraph and the tables for the design review. |
| | 26 | * Engineering update - NB |
| | 27 | * Meeting tomorrow in Strathclyde to discuss target configurations. |
| | 28 | * Further FEA work on the FETS vacuum chamber. |
| | 29 | * Looking at trying 8mm wall thickness instead of 10mm by including radii in the corners to reduce stress. |
| | 30 | * Power consumption |
| | 31 | * Schematic update. |
| | 32 | * Need reference design for profile monitor and the cavity to determine if the gap between lenses 2 and 3 is realistic. |
| | 33 | * JP to provide cavity dimensions. |
| | 34 | * AK to ask FETS for details of profile monitor. |
| | 35 | * WS will ask IBA for details of their profile monitors. |
| | 36 | * WP5 are charged with beam instrumentation. |
| | 37 | * Discussion on position of the collimators. |
| | 38 | * One after Gabor lens 3 |
| | 39 | * One just before the vertical bend |
| | 40 | * One half way along the vertical arc. |
| | 41 | * Slide from CH on the schematic. |
| | 42 | * Adjustment of the positions of the Gabor lenses. |
| | 43 | * Length between lenses 3 and 4 is critical. |
| | 44 | * Simulations |
| | 45 | * Slides on end station dose from WS |
| | 46 | * File that was found does not have the correct input beam so it looks like the data used in the pre-CDR was lost. |
| | 47 | * New BDSIM model |
| | 48 | * Uses slightly different physics list. |
| | 49 | * 12.2 Gy/shot instead of 12.8 Gy/shot quoted in the pre-CDR. |
| | 50 | * Slides from LP on octupole and collimator optimisation. |
| | 51 | * Details from JP on FFA design. |
| | 52 | * Found working point for high-intensity operation by using a small D (instead of a small F doublet) |
| | 53 | |
| | 54 | |
| | 55 | |
