1. Very preliminary draft
VXD installation
S. Tanaka (KEK)

2. VXD Installation options
Remote Vacuum Connection:
*VXD and QCS are independently installed like SVD2
*Requiring space for RVC mechanism
*Service work start after VXD installation
*The RVC mechanics have confirmed by some tests
*Installation tool design (for conceptual test) is ongoing
(Installation procedure other than RVC will validate
before decision)
C.Niebuhr,K.Gadow
Baseline installation procedure:
*VXD and QCS are connected before installation
*Requiring space for VXD support ring to align position
*Service work of FW should finished before installation
*Mechanical analysis ->done
*Installation test with mock-up->done other than cable
stress estimation to VXD structure
T.Kohriki, K,Kanazawa
2013 Oct: Starting design work of VXD installation sub-parts
2013 Nov.: Decision of installation procedure by internal review
The decision will be done in Nov.

3. VXD mechanics
Do you have good picture including SVD service > Tschalie?

4. Discussion slide
Request from reviewer
We hope that the installation procedures and sequence can be discussed in some detail with a full accounting of clearances and the remote vacuum connections. (by Tschalie ?)
Would it be possible to also post the specifications for installation?
For example, what is the target relative alignment between the PXD and SVD, between the end rings and support rings that control the twist of the SVD, module installation precision and things of that nature. (L-shape sensor for inside or additional sensors to monitor position on installation)
These are to be answered in Shuji Tanaka's talk. Obviously he needs input from benny.
Answer slides will be prepared after meeting in Sunday and Monday
This is not only for AIM but also for baseline option

5. What should be prepared before decision
Installation procedure animation image with realistic.
Mechanical analysis on each typical step
Stress to CFRP (because of gluing connection with End-flange)
Deformation of VXD by stress on installation
Installation test with mockup
Showing feasibility of service work with space margin
Ensuring repeatability of VXD Installation and dismantle
Decision should be done by Belle II EB with machine group leader in Nov. B2GM

6. Comparison table Baseline Alternative option Cabling +piping(FW)
Before install
After install
QCS disassembly
Common with VXD
Individual with VXD
Mockup test
Done
Discussing in Nov.
Mechanical analysis
Service space estimation including working space
OK (because of individual work with installation)
Cable stress estimation to VXD structure on Installation steps
Need verification
Not issue by cabling work after installation
Should discuss on meetings in Sunday and Monday

7. VXD load test into CDC
As a result,  The VXD structure sink ( CDC structure deform) about um
(200um was expected) with 80 kg of VXD mockup structure and additional weight (This load was applied on both End flange. )

8. QCS tip position shift on install
· How much the tip of the QCS used in KEKB shift at collision point, based on the movement test of the QCS moving frame. -From spec of the frame, horizontal and vertical variation should be within 0.5 mm. the results of the test are satisfied with it move. However, if we look at the tip of the QCS, the tip of the QCSR was shifting about 1 mm in vertical. On the other hand, on QCSL case, 0.2mm variation in vertical and 0.4mm in horizontal The difference is mainly caused by the adjustment of the position of the rail. In the current scenario, the movement of the QCS tip should be kept below 0.5 mm.

9. Floor for QCS stage Floor will be very flat by adopting
self-leveling method

10. Base line procedure

11. Installation Scenario - Baseline
T. Kohriki
Design of support structure is not started yet. (expected from September)

12. Vertex detector installation
The cabling and piping work should be finished
before installation.
The cables on backward are put on sled
The sled guide is fixed on backward side

13. Vertex detector installation

14. Vertex detector installation
The guide roller keep the weight until touching the roller on
CDC Inner cylinder

15. Vertex detector installation
After touching the roller in CDC inner cylinder ,
Guide roller will be removed.

16. Vertex detector installation
On this case, the roller on backward side keep the
Weight (CFRP should not attach in any position)

17. Vertex detector installation
VXD is connected with CDC at backward (xyz)
Forward position is fixed for x-y position with
guide roller

18. SVD support ring at forward region
Positioning guide pin
(CDC side)
Release control rod after install
(QC cryostat side)
Guide roller to keep weight of SVD

19. QCS-VXD Joint VXD arm Pin（f 10） QCS arm Screw bolt（M8） Nut-cramp （M8）
The junction between VXD and the cryostat must be loosened so that a possible motion of the cryostat after exciting magnets may not exert a force on VXD.
VXD arm
Pin（f 10）
QCS arm
Screw bolt（M8）
Nut-cramp （M8）
Ring-cramp（f 8.2）
The pin support the support ring of VXD.
By loosening the nut-cramp, VXD arm and QCS arm are mechanically disconnected. The tolerance is 1 mm.
(Kohriki)

20. Fixing Backward Remove support extension
Remove the upper half of the support ring and adopt brackets
connecting CDC ring and VXD
Remove other half of the support ring and adopt brackets
connecting CDC ring and VXD
VXD detector is fixed at backward end
for x, y, z axis

21. Vertex detector installation

22. Vertex detector installation

23. BP20kg_Sled:SUS1mmｔ Equivalent stress：Max 32MPa Deformation：Max 1.3mm
IR weight ~60kg
Rib is added
Deformation：Max　1.3mm
CFRP stress
：Max 11MPa
The equivalent stress depends on
the weight of structure

24. Installation test with mockup
On Dec we have tested this installation procedure with mockup.

25. Alternative Installation method

26. Schematic view of RVC installation procedure
Apply similar procedure with Belle SVD2 case
Almost similar with Belle SVD
Procedure without support tube
Discussion of detail procedure is ongoing

27. VXD Installation Step 1 Install mounting tube (stainless steel) and
connect to inner endring
of CDC (both sides)
bwd fwd

28. VXD Installation Step 2 install support structures on both sides
bwd fwd

29. VXD Installation Step 3 install mounting tube extensions on both sides
bwd fwd

30. VXD Installation Step 4 connect cable trays on both sides of VXD
bwd fwd
40 kg
80 kg
40 kg
sliding
parts

31. VXD Installation Step 5 lower VXD system to mounting tube extension
bwd fwd

32. VXD Installation
Step 6
bend CO2 pipes and fiddle through CDC as far as possible
bwd fwd

33. VXD Installation Step 7 push VXD system by hand through mounting tube,
helping from bwd with rope or better divided rod …
bwd fwd

34. VXD Installation
Step 8
… until it reaches the final position
bwd fwd

35. VXD Installation
Step 9
fix the bwd end of VXD to CDC endring (at 3 flange-positions, 0 degree of freedom at bwd)
bwd fwd

36. VXD Installation
Step 10
fix the fwd end of VXD to CDC endring (with long fixing screw, 1 degree of freedom in moving direction at fwd)
bwd fwd

37. VXD Installation Step 11 temporarily suspend cable/pipes on fwd end
bwd fwd

38. VXD Installation
Step 12
remove extension on fwd end
bwd fwd

39. VXD Installation
Step 13
Install the first fwd cable on CDC inner wall and hang all other cable on hooks which are mountet on the fwd outside wall of
the CDC
bwd fwd

40. VXD Installation
Step 14
remove cable tray on fwd end
bwd fwd

41. VXD Installation
Step 15
remove the mounting tube flange fwd
bwd fwd

42. VXD Installation
Step 16
Install all other fwd cable
bwd fwd

43. temporarily suspend cable/pipes on bwd end
VXD Installation
Step 17
temporarily suspend cable/pipes on bwd end
bwd fwd

44. Pull extension bwd which is connected with the mounting tube
VXD Installation
Step 18
Pull extension bwd which is connected with the mounting tube
bwd fwd

45. VXD Installation
Step 19
Remove extension bwd
bwd fwd

46. VXD Installation
Step 20
remove mounting tube
bwd fwd

47. VXD Installation
Step 21
Install the first bwd cable on CDC inner wall and hang all other cable on the hook which is mountet on the bwd outside wall of
the CDC
bwd fwd

48. VXD Installation
Step 22
remove cable tray on bwd end
bwd fwd

49. VXD Installation
Step 23
Install all other cable bwd
bwd fwd

50. BRM (Baseline Retraction Method)
(for emergency extraction together with QCS on fwd)
(V2.2)

51. VXD emergency de-installation
Step 1
QCS disconnected from the beampipe on bwd
with RVC or by hand
bwd fwd

52. VXD emergency de-installation
Step 2
retract QCS on bwd
bwd fwd

53. VXD emergency de-installation
Step 3
release cable basket on fwd so that the VXD cables rest on the QCS
bwd fwd

54. VXD emergency de-installation
Step 4
on bwd end install cable suspension system (cantilever arm)
bwd fwd

55. VXD emergency de-installation
Step 5
fix cable to suspension system on bwd end
bwd fwd

56. VXD emergency de-installation
Step 6
connect cable tray on bwd side of VXD
bwd fwd

57. VXD emergency de-installation
Step 7
install a support flange for the emergency mounting tube on bwd
bwd fwd

58. VXD emergency de-installation
Step 8
move the emergency mounting tube in position (bwd)
bwd fwd

59. VXD emergency de-installation
Step 9
move the emergency mounting tube until it will be fixed at the QCS/RVC with a snap fit connection
bwd fwd

60. VXD emergency de-installation
Step 10
remove the VXD fixing on bwd side of CDC flange
bwd fwd

61. VXD emergency de-installation
Step 11
partially retract the QCS together with emergency mounting tube and the VXD
bwd fwd

62. VXD emergency de-installation
Step 12
bwd fwd

63. VXD emergency de-installation
Step 13
on fwd side install two emergency cantilever arms and a mounting tube support
bwd fwd

64. VXD emergency de-installation
Step 14
Remove the bwd flange of the mounting tube
bwd fwd

65. VXD emergency de-installation
Step 15
Retract QCS further until all cables on bwd side are free
bwd fwd

66. Installation tools

67. Support tool idea for baseline option
Installation tools are similar on both option

68. Installation tools for AIM