**ShowPlay Reference Manual, Chapter 3 (ControlVariables): t_r**
===== T_R -- The scanner TR time (in msecs). =====
This is used to determine the number of images to be acquired and the length of the initial [[jvs:cigal:showplay:manual:chapter3:disdaqs|DISDAQ]] delay.

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:showplay|ShowPlay Home]], 
[[jvs:cigal:showplay:manual|ShowPlay Manual]], 
[[jvs:cigal:showplay:manual:chapter3|InputParameters List]], 
[[jvs:cigal:showplay:manual:help|Manual Help]]