1 / 14

Update on DHC elements testing. Task force: A. Dyshkant, M.Martin, V. Rykalin

Update on DHC elements testing. Task force: A. Dyshkant, M.Martin, V. Rykalin. V. Rykalin. PMT for measurements. PMT Quantum Efficiency. Extruded scintillator,emission intensity versus wavelength. BC 408, emission intensity versus wavelength. BCF 92, absorption end emission versus wavelength.

brigit
Download Presentation

Update on DHC elements testing. Task force: A. Dyshkant, M.Martin, V. Rykalin

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. Update on DHC elements testing.Task force: A. Dyshkant, M.Martin, V. Rykalin V. Rykalin

  2. PMT for measurements

  3. PMT Quantum Efficiency

  4. Extruded scintillator,emission intensity versus wavelength.

  5. BC 408, emission intensity versus wavelength.

  6. BCF 92, absorption end emission versus wavelength

  7. Fiber transparency versus loop radius(V. Makeev measurements)

  8. Elements tested

  9. Hexagonal, machined at NIU, BC-408,1mm BCF-92, N=1.8 P.E.

  10. BC-404, 1cm thickness,1.2 mm fiber BCF 92 N=9.6 P.E. Reflective end

  11. Extruded MINOS,0.9 cm thickness, 1 mm BCF-92 N=3.7 P.E., two ends.

  12. Final results

  13. Possible improvements for NIU9 mm thickness,10 cm fiber active length • Deeper grooving ~ 1.3 • Reflective coating ~ 1.5 • Machining optimization ~ 2-4 • VLPC QE=60% ~ 4 • MRS 30% ~ 2 • TOTAL (VLPC) 15.6 -31.2 P.E. TOTAL (MRS) 7.8 -15.6 P.E. • After attenuation and optical connectors ~ 4 times less

  14. VLPC, 0.9 cm, 2 optical connectors, 0.5 mm fiber BCF-92 N=6 P.E.

More Related