Hello,
I have a Bicron BaF2 detector (model number- 1M.5BaF2/2) lying around in my lab. There is no manual with it and Bicron, I suppose, is closed now.
I want to know if anybody has any information on what type of PMT this detector has?
I want to fire up the detector and its base says- negative voltage. We do timing spectroscopy and its timing is horrible. So, I want to change the voltage divider base, as thats the easiest thing to do. The scintillator and PMT are hermetically sealed with some kind of epoxy/soft rubbery material.
By the looks of the PMT pin - 20 pins- it seems to be a XP 2020Q.
Is there a way you can confirm this, please? I can always put a VD 124KT type base and see how it performs.
saurabh
As far as I know, Bicron is part of St Gobain company. So Saint Gobain should be able to answer your questions accurately.
However, I have already used a Bicron BaF2 detector and it was equipped with a Philips XP2020Q PMT (Q means that there is a quartz window, for fast timing). I confirm that the voltage is negative for XP2020 PMTs.
I hope it helps...
Sorry, I just saw the reply. Thank you for the suggestion. It does look like XP 2020. I will try and let you know. Also, the whole PMT and BaF2 seems to be integrated with a polymer like thing. The whole PMT+scintillator is inside a cylinder (probably mu metal) and the gap (between the PMT and the mu metal cylinder) is filled with a polymer. I was wondering if its possible to remove that polymer somehow. The reason is that I want to dissassemble the whole thing and repply the optical glue. Please let me know if you have experience for such taking apart of detectors.
thanks
saurabh
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