1 / 17

X-ray absorption in a GEM: Production of X-ray X-ray absorbsion in GEM detectors

X-ray absorption in a GEM: Production of X-ray X-ray absorbsion in GEM detectors Calculation of Charge – up effect Calibration of single GEM. 23-11-2011, RD51 miniweek. Yalçın KALKAN Uludağ University Physics Department Bursa -TURKEY. Production of X-ray.

shasta
Download Presentation

X-ray absorption in a GEM: Production of X-ray X-ray absorbsion in GEM detectors

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. X-ray absorption in a GEM: • Production of X-ray • X-ray absorbsion in GEM detectors • Calculation of Charge – upeffect • Calibration of single GEM 23-11-2011, RD51 miniweek Yalçın KALKAN Uludağ UniversityPhysicsDepartment Bursa -TURKEY

  2. Production of X-ray

  3. Energy of X-ray photon Wavelength of X-ray photon ≈ 1.541 A Energy of X-ray photon ≈ 8 keV

  4. Absorption

  5. ExpanentialAbsorption

  6. 44.009 g/mol 39.948 g/mol 1 Atm R = T = 295

  7. AttenuationCoefficient of Argon AttenuationCoefficient of Carbondioxide

  8. Absorption of UnitDistance 0.176 1/cm

  9. Absorption of CopperLayer Absorption of CromLayer

  10. Absorption of Polyimide (Pmda oda) (www.beyochem.com)

  11. Charge-UpEffect (lowVoltage) (Garfield ++) (HighVoltage)

  12. Charge-upEffect (Bulk) Polyimide BulkResistivity BulkResistance Capacitance Relaxation Time

  13. Charge-upEffect (Surface) Polyimide SurfaceResistivity SurfaceResistance Capacitance Relaxation Time Forcm2area (5900 holes)

  14. Calibration of Single GEM

  15. Acknowledgements RobVeenhof, LeszekRopelewski - RD51, İlhan TAPAN, Özkan Şahin, MythraVarunNemallapudi, LauraFranconi, TurkishAtomicEnergyAuthority.

More Related