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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefulas far as the triggering is concerned,my profesor told me that the triggering is done by the system that i will use on its own and i don't have to be concerned about it.and about the noise,i will probably measure the background before i put the sources,so don't think about it too.(also,the pulse decay you asked me is 250ns)
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefuldear stephan,
i am in the lab today.i must say that your code seems to be good but i cannot check if it gives the right result because i don't have the DAQ part.i will be here all day today.if you have any idea let me know
manthos
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Message 12 of 20
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefulIn your DAQ you have to check if there is a valid pulse on your signal channel, which I do in the analysis code looking for values which are higher then a certain value. I presume there square pulses which are zero if there is no valid value.
With your pulses it is a bit more difficult, but I will think about it today.
I have to travel to Berlin today because of our research here, so I won't have the time to write code, but I will be online in two days or so.
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Message 13 of 20
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefuldear stephan,
i created a program that i attach to this message.your code works very good.my problem is in the DAQ part that i created.more specifickly,the program takes the pulse but it only takes one pulse and then stops.i have problem how to make it repeat and take pulses continuously.have a look at it if you can and tell me about.
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Message 14 of 20
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefulalso have a look at this program too,that is similar to the previous
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Message 15 of 20
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefuli finally solved the problem and now i have the wright program which i attach to the message.it works and i have aolready started the counting.thank you very much for your help.see you again,
manthos
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Message 16 of 20
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefulI tested your program with a sine wave and I get counts from the flank of the wave, too. I'm not sure wheather you like to measure the flank of your pulses as well. As far as I have understood your problem you are only interested in the maxima of your pulses. Thus, maybe should reconsider your triggering.

Stephan
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Message 17 of 20
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefulS.Klumpp wrote:
> How do you know there is a valid puls on your signal channel? There
> must be a trigger or something similar which indicates this. After
> triggering you must be certain that you measure your pulse height at
> the maximum height which represents your detector value. How can you
> distinct this from signal flanks and noise certainly ?
>
> Stephan
prove
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Message 18 of 20
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefulYear, that's rigth!
Especially when the signals are at random which they are I presume.

Stephan
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am trying to find a program that takes as an input from a card 6024E the pulse-signal from a scintillator with 1024 channels and high limit voltage 8volt,and gives an output the spectrum in a diagram counts/channel.if anyone can help me i would be gratefulAs always, Oleg gives a very detailed explanation.
But I'll try to propose to look at this problem from the slightly different point of view:
In many applications involving scintillators, PM's, ADC's and pulse peak detecting we do not really need the last one. Instead of detailed analysis of the pulse form in certain conditions it's much more easier to use a resettable analog integrater before the ADC - in other words, aquiring only resulting area beneath the pulse (usually this represents electric charge) and not it's form. Also this frequently reffered as QDC - charge (Q) to digital converter. In this case the rate of conversion will be one per pulse which greatly simplifies the final task. Full information about scintillater response pulse can be intere
sted if one wants information about decay time(s), pulse components and so on. For all others integral pulse area looks informative enough for me.
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