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Re: Additional data



Hi Fernando,

> I would like to take a look at some of your raw ADC data in time for the 
> triggered events.
I added three raw fADC spectra on the wiki page with all the Fe-55 
measurements.


> Also, it would be nice if you could provide a diagram of 
> the triggering electronics/detectors and setup.

I can describe it because it is simple. If it does not suffice i can make 
a drawing.

A collimated (0.5~mm) Fe-55 source is placed close to the straw. The 
signal coming from the straw is preamplified and shaped. After the shaper 
the signal is split in two, using a passive LEMO splitter. One part goes 
to a discriminator (it is not a CFD) afterwards it is delayed a bit and 
triggers the fADC. The other part goes directly to an fADC input.


> With regards to the energy measurements, I would like to look at plots of the 
> sum of the ADC samples over the drift time of the straw for the same plots I 
> mentioned above for triggered events.
I do not know if i understand what you want here. I have some energy 
spectra = integrated signal over time. I do not think if one can call it 
energy spectra because the amplifier converts charge into amplitude. 
Anyway I will put 3 of these spectra on the wiki (3 different HV).

See you at 4pm.

Cheers,
 	Yves