1 / 18

AMS R ing I maging CH erenkov

AMS R ing I maging CH erenkov. J. BERDUGO CIEMAT, Madrid (Spain). PURPOSE: Precise measurement of the velocity of charged particles Measurement of the charge of the particles. Cherenkov radiation. Velocity. Charge Velocity. Particle. Cerenkov Radiator. Conical Reflector.

anson
Télécharger la présentation

AMS R ing I maging CH erenkov

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. AMS Ring Imaging CHerenkov J. BERDUGO CIEMAT, Madrid (Spain) • PURPOSE: • Precise measurement of the velocity of charged particles • Measurement of the charge of the particles Cherenkov radiation Velocity Charge Velocity Particle CerenkovRadiator Conical Reflector Electric Charge Photo- detectors AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  2. C H O Fe AMS RICH Performances: Test at CERN Accelerator Collision products: p, D, He4, Li6,… Velocity measurement: Accuracy of one part in a 1000 Charge measurement: Identification of different nuclei s (v)/v = 0.09% Ek/n=158 GeV/n Charge (Z) Velocicty (v/c) AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  3. 114 cm 47 cm 64x64 cm2 134 cm AMS RICH Main Elements • Dual solid radiator configuration • Low refractive index aerogel • Sodium fluoride • Conical reflector • Reflectivity > 85% • Photon detection plane • Photomultiplier matrix (10880 channels) • Spatial granularity: 8.5 x 8.5 mm2 AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  4. 50 mmfilter (stainless steel) Venting Valve Halkey Roberts C770RP Interface blocks (Peek) AMS RICH Radiator Configuration for the Acceptance Vibration Test NaF Aerogel AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  5. AMS RICH Radiator: Container Assembly and Test Assembly of the Radiator Container under the Lower TOF Structure Vibration Test Lower TOF and RICH Radiator Container AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  6. AMS RICH Reflector MANDREL The reflector is made by a replica technique Flight Unit AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  7. AMS RICH Detection Plane Array of 680 photomultiplier tubes • HAMAMATSU 7600-00-M16 • 4 X 4 pixels • Each pixel is 4 x 4 mm2 • Gain ~ 106 @ 800 V • QE  20 % in the range 250-600 nm 10880 sensors FRONT-END ELECTRONICS • Acquisition circuit (16 channels) • Resistor Divider for HV Mounted on 4 small PCB located at the basement of the phototube • HV Isolation • Polycarbonate housing • Dow Corning injection AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  8. 55° -35° AMS RICH Detection Plane: Thermal Test of Photomultipliers The PMT´s will stand a wide range of Temperatures (-35O to 55O) AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  9. Light Guide FE Electronics Nylon wires Photomultiplier Optical Pad Housing Shielding AMS RICH Detection Plane: Unit cell Mechanical Assembly AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  10. AMS RICH Detection Plane: Unit cell Mechanical Test Two unit cells were tested to reach thebreakage point The wires accomplished 38 g No breakage occurred No degradation on the optical contact AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  11. AMS RICH Detection Plane:Unit cells arranged in GRIDS Unit Cells Internal beams HV Patch panel Stiffness skin Read-out boards U-Beam AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  12. AMS RICH Detection Plane: Grid Assembly Internal beams Assembly Jigs Unit Cells AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  13. AMS RICH Detection Plane: Grid Internal Cabling HV connection Read-out kapton cables Read-out boards HV Patch panel Stiffness skin AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  14. AMS RICH Detection Plane: Vibration and TVT Vibration Test Rectangular Grid (143 units) Thermal Vacuum Test Rectangular Grid (143 units) AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  15. AMS RICH Detection Plane: Functional Test Online/SlowCtrl Software Validation: • Read-out Communication Protocol • HV Power Supply Control • Software for Calibration and Data taking • Temperature Sensors Read-out HV Power Supply Optical Fiber System JIN-R Characterization Data: • HV OFF: • Pedestals and electronic noise • HV ON: • Dark Current • Gains • Efficiencies AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  16. AMS RICH Electronics: Read-out System 12 electronic boards located on the edge of the detector structure • Generation of control signals to drive the front-end electronics • Monitoring and setting of parameters • Processing of the signal • Online calibration JINR RDR3 RDR2 Produced at CRISA 21 Units (4 QM +12 FM + 5 FS) AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  17. AMS RICH Final Assembly: Grids in the Main Structure AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

  18. SUMMARY • The RICH detector has been validated by testing all the critical elements under different external conditions • Two test beam data campaigns have demonstrated that the required capabilities of the detector are reached • The detector is close to final completion and on schedule for integration at CERN AMS-RICH Detector. J. Berdugo – CIEMAT (Madrid, Spain)

More Related