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-**Please share your questions to instructors and fellow participants here!**
+Questions from Lecture 1 (Berg):
+  * Why are the dots on the "Diagnostics in focal plane of Spectrometer" so evenly spaced?
+  * What is the real world example of measuring emittance?
+  * (2) Describe the focal plane diagnostics of the spectrometer in more detail
+  * (2) l doesn't appear to have a dependence on anything. Can you clarify how l(t) transforms? How exactly is l define?
+  * Can you show a (x|a)!=0 case
+  * (4) Why is sigma matrix symmetric? What is definition of sigma_21? How do we create the 6x6 ellipse matrix?
+  * How does the x-Theta measurement setup look like (measure orientation of ellipse)
+  * Definition of Louisville Theorem?
+  * How do we define the central ray?
+  * R11, R12, R21, R22 - can more than one be zero?

JINA-CEE ION OPTICS SUMMER SCHOOL: JIOSS 2018