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--- hi:hi:blmservicerecords [2019/09/25 14:57]
p.boutachkov
+++ hi:hi:blmservicerecords [2020/12/11 13:33] (current)
p.boutachkov FAIR BLM records
@@ Line 7: / Line 7: @@
 Note on the light yield. Reference Glenn Knoll 3rd edition p.235 and p226 NE102A 10 k photons per MeV. BC400 light output 0.65 of NE102A (anthrscene). Hence one can expect: 6500 photons / keV
-Bellow is a spectrum taken with the HDO6104A scope when for a BLM set to count 3 kHz (in this case XP2972
+Bellow is a spectrum taken with the HDO6104A scope when for a BLM set to count 3 kHz (in this case XP2972 34391)
+{{:hi:hi:sn34391-137cs-1275v--00000.jpg?700|}}
 ====== XP2972 PMT History ======
@@ Line 38: / Line 40: @@
     * No yellowing, signs of mechanical damage on the surface.
     * Under UV, no spots
 The Standard operating voltage is 1100 V, I<sub>l</sub> = 739 uA, counting rate bellow 5 Hz
+====== FAIR Type  ======
+   * Measurement with Micsing scope, BW 150 MHz, dT=100 ns/div, dV = 200 mV/div, trigger -104 mV
+   * The LED drive, pulse, positive, voltage is 3V, width 50 ns, rise/fall time 5 ns, frequency 1 kHz
+^ PMT S/N ^ AVD S/N [uA] ^ I@1500V [uA] ^ Dark counts@1500V [Hz]^ Vmin[V] LED on ^
+| LA8177  | 2019-101     | 540          |           < 15        |     1.29    |
+| LA8178  | 2019-100     | 570          |           < 15        |     1.35    |
+| LA8179  | 2019-102     | 540          |           < 10        |     1.36    |

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