UV Light Meter Circuit (Analogue)

Hi All, I'd like to make a very basic UV light meter to measure the output of UV florescent tubes as they warm up.
The Idea is that I would be able to see the output rise on the meter and know when the Tubes are warmed up.
I cant find a Schematic dedicated to UV but I'm guessing I could use a basic op amp amplifier with a UV photo Diode and somehow drive an analogue meter.
The unit doesn't need to be calibrated, just consistant. Its just to tell when the tubes are approaching their brightest so I don't waist the limited tube hours before I use them.

Any Idea if the attached circuit would work with my UV diode?

Any tips or hints would be appreciated as I'm not good at design but I can build most circuits.

 

Thanks for taking a look Chris.
I'm not too worried about visible light as the sensor Diode will be placed very close to the tubes in an unlit room so I think the sensor will be well saturated with 311nm UVB (Philips Narrowband TL/01)
It can probably be achieved with a simple transistor circuit but I've not got that far yet.

Andy

 

Settled on this circuit in the end, it works fine and puts out about 2.5v next to a daylight Florescent tube. Now waiting for a better UV Diode as the original one has a response from UV right through to Infra red and may be influenced by the heat of the lamps. The next UV diode I'll try has a very narrow band and will only respond to UV. I changed C1 to 1nF to lower bandwidth, as its just an analogue light meter. Not tested circuit bandwidth.