| | 2 | |
| | 3 | == Notes: == |
| | 4 | |
| | 5 | **Present:** KL, LC, JB, AK, HTL |
| | 6 | |
| | 7 | 1. Notes and actions from [wiki:Research/Instrumentation/Meetings/2019/06-26 last meeting]: |
| | 8 | * **HTL**: Inject 90Sr electrons to estimate test-rig light yeild. \\ |
| | 9 | * **Done.** Simulation estimating number of photo-electrons created (see slides). Now await measurement to allow comparison. |
| | 10 | * **Agree:** Make measurement of activity of source using silicon detector. This was done; the rate measured was 90kHz. |
| | 11 | * **KL**: Liaise to develop concept for polishing. \\ |
| | 12 | * **Ongoing.** Possibly use diamond cutter after having glued two planes together to form station. |
| | 13 | * **KL**: Work within Imperial to find assembly space. |
| | 14 | * **Done.** |
| | 15 | * **KL**: Seek meeting with S.Gruber to get her input into the design. |
| | 16 | * **Ongoing.** |
| | 17 | * **LC**: Obtain chemical composition of resin and black dye. \\ |
| | 18 | * **Done.* Carbon-black pigment. Its composition is "like" resin. **KL** send MuScat paper for reference. |
| | 19 | * **LC**: Develop concept for optical connector at camera end of lightguide and for potting of light guide at detector end. \\ |
| | 20 | * **Done.** Example part has been printed. We discussed the dimensions and agreed to make it one piece. |
| | 21 | * **KL**: Liaise with FW to work out how to place aluminium-part order. |
| | 22 | * **Done.** Order may be placed on the code used for other components. |
| | 23 | * **JB**: Purchase parts for optical readout system. |
| | 24 | * **Done.** All parts for prototype are ordered. Optical system concept developed and initial sketch uploaded. |
| | 25 | * **AK**: Provide JB with project code for purchase of optical readout components. \\ |
| | 26 | * **Done.** |
| | 27 | |
| | 28 | 2. Mechanical design update: LC \\ |
| | 29 | * See slides. Excellent discussion, next steps noted in LC's slides. Imperial my make sheet-metal stand. |
| | 30 | * We **agreed** to assemble jig at RAL because of need to measure accuracy of assembly. Implies some technical effort from RAL. **LC** will see if this is available. |
| | 31 | |
| | 32 | 3. Optical readout update: JB \\ |
| | 33 | * We discussed the concept that had been circulated. JB demonstrated the concept with parts (holder, lens assembly, locking ring). |
| | 34 | * Concept seemed good. Light tighting felt to be straightforward. |
| | 35 | * **LC/JB:** Agreed to finalise specification of interface between clear-fibre connector and optical assembly. |
| | 36 | |
| | 37 | 4. Control system and SciWire readout update: AK \\ |
| | 38 | * Will use LabView. AK has requested LabView license for himself and HTL. Work will be divided between AK and HT. |
| | 39 | * Need to purchase laptops to run/develop system: one for development one for development and operation of system. |
| | 40 | * Stepper motor with travel of 150mm will be purchased from ThorLabs. Order will include two locking rings for optical system. |
| | 41 | * **JB** will send part number to AK. |
| | 42 | |
| | 43 | 5. Simulation update: HTL \\ |
| | 44 | * Points noted above. |
| | 45 | |
| | 46 | 6. Schedule: HTL and discussion (all) \\ |
| | 47 | * Discussion of schedule led to conclusion that there is a need to advance the construction etc. as far as possible. |
| | 48 | * Agreed to wind first prototype planes with scifi (not fishing line). Hope that these will be acceptable detectors for use. |
| | 49 | * We **agreed** to meet next Tuesday (time to be defined) to make a first baseline version of the schedule **KL** to suggest time. |
| | 50 | |
| | 51 | 7. Next steps \\ |
| | 52 | * Preparation of components indicates that assembly of winding jig could start after 12Aug19. Need to watch this space. |
| | 53 | |
| | 54 | 8. DONM \\ |
| | 55 | * 07Aug19 |
| | 56 | |
| | 57 | 9. AoB \\ |
| | 58 | * None. |
| | 59 | |
| | 60 | === Summary of actions === |
| | 61 | |
| | 62 | * **KL**: Liaise to develop concept for polishing. |
| | 63 | * **KL**: Seek meeting with S.Gruber to get her input into the design. |
| | 64 | * **LC**: Check re technical effort at RAL for assembly/dowling etc. |
| | 65 | * **LC/JB:** Finalise specification of interface between clear-fibre connector and optical assembly. |
| | 66 | * **JB** Provide ThorLabs part numbers of remaining optical components to AK. |
| | 67 | * **KL**: Suggest time for schedule discussion on 30Aug19. |
| | 68 | |
| | 69 | ---- |
