Difference between revisions of "FCALPMT"
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<li>The PMT are russian made 12-Stage tubes of the type FEU-84-3 with a 30mm diameter SbNa-KCs cathode</li> | <li>The PMT are russian made 12-Stage tubes of the type FEU-84-3 with a 30mm diameter SbNa-KCs cathode</li> | ||
| + | <li>Maximum gain 2.4*10^5</li> | ||
| + | <li>Entrance window Borosilicate glass</li> | ||
| + | <ul> | ||
| + | <li> 70% SiO2 </li> | ||
| + | <li> 10% B2O2</li> | ||
| + | <li> 8% Na2O</li> | ||
| + | <li> 8% K2O </li> | ||
| + | <li> 1% CaO </li> | ||
| + | </ul> | ||
<li>The tube outer diameter is 1.339" or 34.01mm and are about 100mm long (without the pins) </li> | <li>The tube outer diameter is 1.339" or 34.01mm and are about 100mm long (without the pins) </li> | ||
<li>The current desing of the base has an outer diameter of 1.5" or 38.1mm with an length of about 157mm including the PMT-connector ring and the aluminum end cap.</li> | <li>The current desing of the base has an outer diameter of 1.5" or 38.1mm with an length of about 157mm including the PMT-connector ring and the aluminum end cap.</li> | ||
Revision as of 19:13, 7 December 2007
PMT specifications
see also NIM A332(1993)419-443
- The PMT are russian made 12-Stage tubes of the type FEU-84-3 with a 30mm diameter SbNa-KCs cathode
- Maximum gain 2.4*10^5
- Entrance window Borosilicate glass
- 70% SiO2
- 10% B2O2
- 8% Na2O
- 8% K2O
- 1% CaO
- The tube outer diameter is 1.339" or 34.01mm and are about 100mm long (without the pins)
- The current desing of the base has an outer diameter of 1.5" or 38.1mm with an length of about 157mm including the PMT-connector ring and the aluminum end cap.
- The quantum efficiency is about 21% with a sigma of 3%
- The peak sensitivity is around 400nm
- The PMT base will be a Cockroft-Walton based design. Its temperature sensitivity have been investigated [PDF document]
