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CLUE Passato e Futuro

CLUE Passato e Futuro. A. Menzione, Gr 2 , 19/11/03. 1 : Generale. A. Menzione, Gr 2 , 19/11/03. CLUE Cherenkov Light UV Experiment. Matrice 9 telescopi 3x3, Passo 45 m, specchi F/1 1.8 m. Lece Cerenkov UV (190-240 nm) MWPC con TMAE. FOV 4^. Trigger 2 Livelli. Soglia 1 TeV. Cluster.

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CLUE Passato e Futuro

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  1. CLUE Passato e Futuro A. Menzione, Gr 2 , 19/11/03

  2. 1 : Generale A. Menzione, Gr 2 , 19/11/03

  3. CLUE Cherenkov Light UV Experiment Matrice 9 telescopi 3x3, Passo 45 m, specchi F/1 1.8 m Lece Cerenkov UV (190-240 nm) MWPC con TMAE FOV 4^ Trigger 2 Livelli Soglia 1 TeV

  4. Cluster Cluster charge Cluster centroid The UV Cherenkov light properties Typical CLUE event on one mirror Standard imaging techniques cannot be used

  5. 2 : Sources A. Menzione, Gr 2 , 19/11/03

  6. 89 68000 31000 1000 7 sigma Obs Hours: Tot Events: Used Events: Excess: Significance level: CLUE RESULTS : CRAB

  7. 36 28000 15000 1500 17 sigma Obs Hours: Tot Events: Used Events: Excess: Significance level: CLUE RESULTS : AGN MRK421 Mrk 421 Active Period Mrk 421 Quiescent Period

  8. Preliminary Data Analysis on g-sources We used thrust method to reconstruct showers direction Corrections depending on I.P. have been not yet applied in that analysis • Crab • feb.-mar 98, feb. 99, and nov.99 - mar. 2000 • 90 hrs ON-source • 68000 evts • 31000 reconstructed events ( Ncluster>9 ) • 27000 OFF-source • MrK421 • Apr.-May 98 and mar. 2000 • 86 hrs ON-source • 63000 evts • 32000 reconstructed events ( Ncluster>9) • 18000 OFF-source • Data Reduction • Pedestal drift correction • Noisy and hot pad identification and correction • Charged particles / photons selection (on clusters)

  9. 3 : Moon A. Menzione, Gr 2 , 19/11/03

  10. Observation of Moon Shadow with old method • Same preliminary treatement of source data • We rotate the primary directions in such a way to have the proton shadow fixed along the a- axis. • The Moon dip lies along this axis (the West of the sky) and then it is evidenced in the difference between Western and Earsten bins Chamber owerview and pad segmentation [degrees]

  11. 4 : HPD A. Menzione, Gr 2 , 19/11/03

  12. Rb2Te 5-inch: Q.E.

  13. Cover for HPD SYLGARD moulding air evaporation job done!!! Rb2Te 5-inch: SYLGARD

  14. Rb2Te 5-inch: Gain Equalization Ref NIM A 385(1997) 336-370 FFT

  15. Bialkali 10-inch: Production Heater Assembly Top view

  16. Bialkali 10-inch:Sealed and working in May 2003 10-inch saled TOM-HPD compared to 5-inch HPD

  17. Bialkali 10-inch: Q.E.

  18. GOAL: Production of a 10-inch HPD - Quartz window - Rb2Te Photocathode - Integrated electronics Project CERN-INFN First Conclusion Wider in QE Good separation between noise and single phe Good photon counting (small gain fluctuations) Good imaging property (detector segmented) Good time property

  19. * 5-inch Solar blind Rb2Te Photocathode (Q.E. 15 %) (BEAUNE 2002 NIM A 504 (2003) 19 ) DONE * 10-inch tube with Bialkali Photocathode (Q.E. 25%) (ELBA 2003 to be published on NIM A) DONE * 10-inch tube with QUARTZ window and Rb2Te with very special technology sealing quartz window to glass body developed toghether with PHOTEK and SVT 2003 * 10-inch tube with autotriggering electronics (VA-TA). Ready for CLUE 2004 TOM development road map

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