GSI Forum
GSI Helmholtzzentrum für Schwerionenforschung

Home » NUSTAR » NUSTAR PRESPEC » AGATA Crystal positions (Look-Up Table)
Re: AGATA Crystal positions (Look-Up Table) [message #18047 is a reply to message #18046] Mon, 23 March 2015 09:50 Go to previous messageGo to previous message
wieland@mi.infn.it is currently offline  wieland@mi.infn.it
Messages: 13
Registered: July 2014
occasional visitor
From: *mi.infn.it
Dear Tayfun,
we (Riccardo and me) did something really simple.
we did not change the lookup table.
We let it as it was in the package and did all transformations afterward.
Otherwise it will get very confuseing.
Using the prespec package from Michael we printed out the psa data (taking care of the 1.3cm shift measured from Plamen).
then apply a simple rotation (in positive direction - please try out both directions to rotate- using rotation matrixes it is easy to rotate in the wrong direction using different refernce systems, then take the direction that produces better results, try 7 to 8 degrees (visual estimation with basic tools on a paper plotout measured) Wink in the x,y plane (agata coordinates) and target z-shift of the few mm (Riccardo please correct me if it is wrong).
Finaly we gave the coordinates to the mgt code directly (doing additionally the x,y target coordinate shift to correct the source position).
And this worked much better than we did until now.

please try

cheers
Oliver
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Scattering Angle Cut
Next Topic: Multihit TDCs in the PreSPEC setup (CAENv1290)
Goto Forum:
  


Current Time: Sun Oct 17 05:34:35 CEST 2021

Total time taken to generate the page: 0.02668 seconds