@Carl, that's an excellent suggestion for the backdrop. Thanks for that!
I am not yet clear on the lenses yet since. I actually found an
interesting camera that is pre-modified and may be an interesting initial
trial to see how it works without going down the road of very expensive
quartz lenses.
On Sun, May 17, 2015 at 8:30 PM, Carl Noggle <cn8@xxxxxxx> wrote:
> We have noticed a purple glow around TC streamers which doesn't seem to be
> there in film camera pix. There's no obvious structure, but it's always
> there if the background is black enough. Are the lenses made of different
> glass? Fused quartz, maybe? You can get black flock paper from astronomy
> stores which is very black and would make a good background. It would be
> interesting to find out what is going on here.
>
> ---Carl
>
>
>
>
> On 5/17/2015 3:50 PM, David Thomson wrote:
>
>> Why would you want to be limited to ultraviolet? If you are aiming to
>> measure the output radiation at the breakout of a high voltage system,
>> which can produce x-rays if sufficiently powered and designed, then you
>> will still be missing the active frequency of the output. Of course, if
>> you
>> were interested in the secondary ionization of the surrounding atmosphere,
>> ultraviolet could be useful. To maximize the ionization, however, means
>> having top load capacity in excess of the potential so that no streamers
>> are produced. I suspect in the case of ionized atmosphere there would be a
>> visual blob roughly equivalent to the shape of the E field.
>>
>> Dave Thomson
>>
>> On Sun, May 17, 2015 at 3:05 PM, illuminated <illumination00@xxxxxxxxx>
>> wrote:
>>
>> In a similar vein to my other message, but more specific, has anyone ever
>>> used a UV filter to view / record high energy experiments? (400 nm to
>>> 250
>>> nm to be specific)
>>>
>>> I am working on putting together a full spectrum camera for such
>>> observations and am curious as to whether others have taken this approach
>>> before to see what additional non visible light spectrum observations may
>>> have been made.
>>>
>>>
>>> -G
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