[Halld-tagger] Thermal viewer/camera for the radiator

[Ken Livingston]

Hi Yi,
Seems like a good idea. We certainly need a standard camera too - looks 
like the FLIR series all do both IR and visual.  When Krister and I 
discussed the chamber design with Tim we talked about the need for 2 
viewports upstream, one side for the camera and one side to illuminate 
with a lamp, avioding the problem of getting reflections when there's 
only a single viewport (as in Hall-B).

Regards,
Ken



On 07/18/2012 03:04 AM, Yi Qiang wrote:
> Hi Fernando,
>
> Thanks for pointing it out. I think FLIR E60 may work, it has pretty 
> good resolution and can also provide video streaming through USB
> http://www.flir.com/cs/emea/en/view/?id=41959
>
> As for the radiation damage, the backward angle will help reduce the 
> radiation significantly and we can further lower the flux by putting 
> the camera into a shielding block. Actually, for most of the Hall-A 
> experiments, we put a camera to monitor the target ladder motion and 
> they all survived as far as I know. A typical condition is a 10 uA 
> beam hitting a 3% target which is about 3 orders of magnitude worse 
> than our photon beam radiator.
>
> Cheers,
> Yi
>
>


-- 
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Ken Livingston

Dept. of Physics & Astronomy,        Tel: +44 141 330 6428
University of Glasgow,               Fax: +44 141 330 5889
Glasgow G12 8QQ.
Scotland. UK.
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