| Errors in SttHi [message #14875] |
Wed, 19 June 2013 15:05  |
Tobias Stockmanns
Messages: 489
Registered: May 2007
|
first-grade participant |
From: *ikp.kfa-juelich.de
|
|
Dear STT code developers,
I had a look into the hit errors stored in the STTHit.
The x,y,z coordinates given in the SttHit are the wire mid-position. The error given for them is 0.5 in x and y while in z it is 3 cm. In my opinion the error should be 1 / Sqrt(12) for x,y and tube length / Sqrt(12) for the z coordinate. Can you please check this?
When looking at the isochrones, these values are still given as a radius in cm with an error in cm. For the time-based simulations it is necessary to have a method to translate the stored time stamp (or time pulse) into a radius including error by giving the event time with error.
Cheers,
Tobias
|
|
|
|
GSI Forum
Search
Help
Members
Login
Home
