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Silicon Pad Sensors Irradiation Results at KRI Dmitry Karmanov Institute

The 3rd Work Meeting of the CBM-MPD STS Consortium presents results from irradiations of silicon pad sensors at KRI Dmitry Karmanov Institute of Nuclear Physics, Moscow State University. The sensors underwent doses and annealing processes, showing good agreement with current degradation data for high doses.

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Silicon Pad Sensors Irradiation Results at KRI Dmitry Karmanov Institute

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  1. First results of irradiations of silicon pad sensors at KRI Dmitry Karmanov Institute of Nuclear Physics Moscow State University 3rd Work Meeting of the CBM-MPD STS Consortium

  2. Objects • 9 structures from CiS: • Size 7 x 7 mm2, • Active area 5х5 mm2, • Thickness - 280 mkm • 6 structures from ELMA: • Size - 10 x 10 mm2, • Active area ~8 x 8 mm2, • Thickness 300 mkm 3rd Work Meeting of the CBM-MPD STS Consortium

  3. Doses CiS: • 7.3х1010n/сm2, • 7.3х1011n/сm2, • 1.6х1012n/сm2, • 1.0х1013n/сm2, • 1.8х1013n/сm2, • 6.4х1013n/сm2 • MSU: • 1.5х1012n/сm2, • 1.2х1013n/сm2, • 2.1х1013n/сm2 3rd Work Meeting of the CBM-MPD STS Consortium

  4. Annealing Two kinds of annealing: • 60 minutes at 20oC • 60 minutes at 60oC All other time samples kept cold 3rd Work Meeting of the CBM-MPD STS Consortium

  5. ~+20C 0 + 60мин. +60C 0 + 80мин. Base plot (RD48) 3rd Work Meeting of the CBM-MPD STS Consortium

  6. 3rd Work Meeting of the CBM-MPD STS Consortium

  7. Results (1) 3rd Work Meeting of the CBM-MPD STS Consortium

  8. Results (2) 3rd Work Meeting of the CBM-MPD STS Consortium

  9. Full Depletion Voltage 3rd Work Meeting of the CBM-MPD STS Consortium

  10. Summary • Good agreement with known data on current degradation for high doses . • Not so good for low doses, but might be it because of mistakes in dose measurements. • Expected behavior for full depletion voltage • We are almost ready for real work!!! 3rd Work Meeting of the CBM-MPD STS Consortium

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