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Home » NUSTAR » NUSTAR PRESPEC » Multihit TDCs in the PreSPEC setup (CAENv1290) (This topic is intended to collect different ways of treating data from multihit TDCs. Post here whenever you want to share your ideas.)
Re: Multihit TDCs in the PreSPEC setup (CAENv1290) [message #18436 is a reply to message #18419] Wed, 26 August 2015 21:09 Go to previous messageGo to previous message
miree is currently offline  miree
Messages: 71
Registered: June 2014
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 From: *084.059.pools.vodafone-ip.de
Hi Tayfun,

With the v1290 multihit-TDC the full resolution of 25ps is only achieved for channel differences. If you make a histogram of one single multihit-TDC channel, it will always show the time distribution of the signal that was put into the channel, but folded with a ~25ns wide jitter. Because the jitter is identical on all channels, it disappears when you look at channel differences.

Concerning your trigger signal: You should see a spike - folded with a 25ns wide jitter signal - which gives a 25ns wide peak.

Michael

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