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--- questions_area [2018/08/24 21:08]
admin
+++ questions_area [2018/09/12 22:55]
berg
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-Please share your questions to instructors and fellow participants here
+==== Some 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?
+{{:questions_answers.pdf |Answers}}
+==== Some questions from Lecture 2 (Couder):====
+  * Does the kinematics calculator include anisotropic gamma radiation?
+  * Why is the angular acceptance fixed?
+  * Beam spot and divergence in front of target, focusing necessary to minimize (x|a)?
+  * If (x|a) is non zero, how does that affect the resolving power?
+  * Rejection requirements were unclear
+  * Is x_0 the half beam spot size?
+  * definition of rejection for detectors
+  * What is the meaning of the interpolation line of the charge state distribution?
+  * Are separators ever compromised by space charge effects from large beam currents?
+  * What limits the systematic errors in measurement efficiency, transmission, charge state population?
+  * How significant can be the background in a (p,g) experiment from target impurities?
+  * Notation: is there a difference between (x|d)d_1, (x,m)dM/M, and (x|\Delta M) \Delta M/M?
+==== Some questions from Lecture 3 (Berg):====
+  * 1) Does COSY allow implementation of higher order corrections in dipoles?
+  * 2) Why dipoles doublets instead of one large dipole?
+  * 3) Definition of K, T, and C in dispersion matching.
+  * 4) Define fringe field.
+  * 5) Define Rogowski profile.
+  * 6) Explain H and K coil in K600 Spectrometer. Why quad inside K600?
+  * 7) Explain HO in K600 Spectrometer.
+  * 8) How to use reconstruct the scattering angle at target from focal plane measurement? Setup of
+    multi-slit for angle calibration, drift between target and multi-slit.
+  * 9) Discuss only one spectrometer (e.g. K600, Grand Raiden, Big Karl).
+  * 10) Explain magnetization of ferro-magnetic material.
+  * 11) p. 14 Why not 0 deg with beam (for dispersion matching)?
+  * 12) Will permanent magnet saturate material. Similar to coil generated fields?
+  * 13) Why is dispersion matching needed?
+  * 14) Can EFL be measured?

JINA-CEE ION OPTICS SUMMER SCHOOL: JIOSS 2018

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