Anti-Blooming Clocks

[Simon Tulloch]

Dear All,

In my posting of 4 Dec 95 I described some problems that we experienced when 
trying to implement anti-blooming "wobble-clocks" on a TEK 1024 device.
A discussion on spurious charge generation followed. I understand that spurious 
charge appears as excess dark current across the whole chip. Our main 
problem, however, was the presence of many bright  bright spots, each only a few 
pixels across and distributed evenly across the image. Could a seperate process be 
involved in their generation? For those interested, Paddy Oates has posted an 
image, illustrating the effect, in his web problem page. The URL is :

	http://www.ast.cam.ac.uk/~apo/docs/probs.html

Thanks

Simon Tulloch

Royal Greenwich Observatory
Madingley road
Cambridge
UK