| Mu-metal shield for PMT
of Aerogel counter |
| Bench test setup |
| Helmholtz coil | |
| PMT | |
| Gauss meter | |
| Myu-metal shield | |
| Light guide | |
| LED | |
| N.P.E. vs ADC mean at parallel B-field |
| What will be shown next . |
| Number of Photoelectron vs Magnetic field (vertical). | |
| The ratio of ADC mean vs Magnetic field (vertical). | |
| Number of Photoelectron vs Magnetic field (parallel) | |
| The ratio of ADC mean vs Magnetic field (parallel) |
| Pictures |
| Magnetic field(vertical) vs Number of Photoelectron |
| Magnetic field(vertical) vs the ratio of ADC mean |
| Magnetic field(parallel) vs Number of Photoelectron |
| Magnetic field(parallel) vs the ratio of ADC mean |
| BACK UP SLIDE |
| No shield at parallel B-field |
| HAMAMATSU-shield at parallel B-field |
| No shield at Vertical B-field |
| HAMAMATSU-shield at Vertical B-field |
| Magnetic field(parallel) vs Conversion factor |
| Magnetic field(vertical) vs Conversion factor |
| Magnetic field(vertical) vs ADC mean |
| Magnetic field (parallel) vs ADC mean |
| 8cm(Length)-0.5mm(thickness)
shield , B-filed: forward |
| 8cm(Length)-0.2mm(thickness)
shield , B-filed: forward |
| 8cm(Length)-0.2mm(thickness)
tapered shield , B-filed: forward |