Home » PANDA » PandaRoot » General » Question about pipe simulation
| Re: Question about pipe simulation [message #9129 is a reply to message #9089] |
Mon, 03 August 2009 14:57   |
donghee
Messages: 385
Registered: January 2009
Location: Germnay
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first-grade participant |
From: *kph.uni-mainz.de
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Dear Panda users,
I want to get how the information of pipe geometry access from below numbers in passive/PndPipe.cxx.
| Quote: |
Double_t parPipeRight[18] = { 0., 360., 5,
20., .8873, .9,
22., 2.073, 2.1,
120., 2.05, 2.1,
300.1, 2.85, 2.9,
1050., 5.4, 5.5};
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This numbers correspond to geometry of the beam pipe into the forward spectrometer direction.
0 to 360 is phi angle, and 5 is the distinction at 5 different z position.
And the difference between .8873 and .9 in the second line represents the thickness of beam pipe from x=0, y=0, z=20. Then one can build a cylinder shape.
How can I give shifted x and y in this scheme?
Best wishes,
Donghee Kang
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