1. SciFi option for neutrino target tracker
Presented by Alexander Malinin,
NRC KI, Moscow
7th SHiP Collaboration Meeting
11 February , 2016 1

2. SHiP experimental set-up
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3. SciFi tracker structure
Conceptual view
SciFi mats
ECC Brick
Honeycomb
Honeycomb
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4. Tau-neutrino detector cros-section
SciFi tracker envelope
SciFi
SciFi
SciFi
SciFi
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5. SciFi sp-resolution and rad-hardness
Measured charge weighted
Double Gaussian fit
σ1 = 59 μm
σ2 = 203 μm
σeff = 79 μm (weighted average)
Measured attenuation length Λ
with respect to the SciFi irradiation dose.
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6. SciFi Target Tracker option cost
Fiber: 1/8.6 of the total fiber length for the LHCb SciFi.
2750 kCHF /8.6 = 320kCHF (12 stations, 15 x 7 ribbons)
Honeycomb panels: 50 kCHF
FE Electronics: The same number of boards, but no -40 C cooling and simple serial Ethernet interface :~1000 KCHF.
Special production equipment: 30 kCHF
Consumables, chemicals, and CR maintenance: 40 kCHF.
Total ~1500 kCHF
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7. SciFi detector fabrication
275 m
Not to scale
The alignment pins define center and fibre direction
Alignment pins on the mat produced through glue filled holes on the wheel
3mm
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8. SciFi production clean room at KI
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9. Fibre rewinding and QA machine model
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10. Fibre Rewinding & QA machine parts
Optical quality control (light leak detector)
LED
Photodiodes
LLB
Cover with Z-path is not shown
SiPM
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11. Fibre QA scanner, light leak box
The box (not blackened).
The sensors board (3 Hamamatsu photodiodes and 1 SiPM).
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12. Fibre QA scanner, light leak box
Photodiodes
The sensor side of the board which will face the fibre The LLB board’s schematics.
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13. Ribbon QA optical stand
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14. A new SciFi winding wheel from Bryansk
Good shape and the surface quality. Correct positions of the alignment holes.
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15. SciFi winding wheel alignment pinholes
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16. SciFi production status update
The KI personnel is trained at RWTH, Aachen, to operate the production and the QA equipment (October 2015).
Winding machine is being shipped to NRC KI (pickup date was January 29th ) and is expected to be delivered this week. The first winding wheel is ready;
The production zone at KI, the clean room, will be integrated by March 14th.
All necessary production and QA equipment will be operational by the LHCb SciFi Production Readiness Review in May 2016.
The fibers and other consumables delivery contracts are being negotiated (delivery profiles, batch sizes and rates).
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17. Fiber and ribbon QA status update
Fiber QA scanner is at the final stage of the integration (all the mechanics parts and motors are integrated, all the electronic boards and power supplies are produced and delivered, the light leak detector is ready, the laser micrometers and the control electronics are the last to be integrated). The software is ready.
Ribbon QA custom made optical stand is ready. The software to detect and to measure fiber's positions and diameters is ready.
The neural net based code to detect the fiber's shape defects and as well as the optical output variations (brightness, color) is being tested.
The Sr90 SciFi light yield and uniformity stand is being built.
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18. Plans towards CDR Securing R&D funds.
Target tracker geometry optimization (together with the neutrino
target detector).
Detailed tracker MC simulation together with the neutrino detector to evaluate its performance.
Production of the qualification module and electronics (Module 0, or technology demonstrator) and its mechanical study.
The Beam tests of the Module-0
Engineering Design Review
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19. Conclusions:
Big way ahead, but the work done for the LHCb SciF tracker
makes it a lot shorter.
We welcome motivated people to join it.
Thank you!
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