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--- group_10 [2018/09/13 16:09]
dombos
+++ group_10 [2018/09/13 16:35]
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 **Problem 8**
-The mass resolutions of ''stgeorge.fox'' without any modifications are given at the beginning of the previous problem.
+As stated in Problem 7, the mass resolutions of ''stgeorge.fox'' without any modifications are
-In order to have a 5% decrease in the mass resolutions, the final resolutions must be
+Mres_x = 60.123, and
-(60.123-x)/(60.123) = 0.05 -> x = 57.11685%, and (59.262-y)/(59.262) = 0.05 -> y = 56.2989%.
+Mres_y = 59.262.
+To have a 5% decrease, the final mass resolutions must be
+(60.123-x)/(60.123) = 0.05 -> x = 57.116, and
+(59.262-y)/(59.262) = 0.05 -> y = 56.2989.
+The beam position (offsetting the optical axis) can be changed with the ''SA'' command.
+With ''SA 0.0005 0.0;'', Mres_x = 55.18793673041390 and Mres_y = 54.57598045160019. This is close to a 5% decrease.
+With ''SA 0.0 0.0014;'', Mres_x = 55.03721889327960 and Mres_y = 54.24635345218690. This is close to a 5% decrease.
-The beam position (offsetting the optical axis) can be changed with the ''SA'' command. With ''SA 0.0005 0.0;'', Mres_x = 55.18793673041390 and Mres_y = 54.57598045160019. This is close to a 5% decrease.

JINA-CEE ION OPTICS SUMMER SCHOOL: JIOSS 2018