• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Photomultiplier HV power supply schematic

Status
Not open for further replies.

captainhannes

New Member
Hi all!

I googled a lot, but it seems there is no photomultiplier high voltage power supply schematic out there.
Does anyone have such a schematic ?
Preferably, but not necessarily without a transformer. I suppose a simple cascade will do too, since it 'only' requires about 1kV (?)
Those photomultiplier packages with a required power supply of 5VDC or 12VDC don't have any transformer aswell, do they ?

Thank you very much in advance!

All the best,
Hannes.
 

Sebi

Active Member
For the photomuliplier need 80...150V potential-difference between the dinodes. So the (negative) high voltage depend from number of dinodes, and must be stabilised. Because the last two dinodes suck more current, better using two supplies: one for last dinodes with higher current (about 2mA, HI) and another high voltage supply with resistor-divider (about 1500...1800V 1mA)
 
Status
Not open for further replies.

Latest threads

EE World Online Articles

Loading
Top