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Drift Spaces 


label:DRIFT,TYPE=string,APERTURE=real-vector,L=real;
A DRIFT space has one real attribute:
L
The drift length (default: 0 m)
Examples: 

DR1:DRIFT,L=1.5;
DR2:DRIFT,L=DR1->L,TYPE=DRF;
The length of DR2 will always be equal to the length of DR1. The reference system for a drift space is a Cartesian coordinate system.


MAD User Guide, http://wwwslap.cern.ch/mad/