JINA-CEE ION OPTICS SUMMER SCHOOL: JIOSS 2018

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berg 		questions_area [2018/09/24 13:01] (current)
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   * 2) How realistic is Gaussian distribution for the incoming beam?   * 2) How realistic is Gaussian distribution for the incoming beam?
   * 3) Difference between dispersive focus and achromatic focus.   * 3) Difference between dispersive focus and achromatic focus.
-  * 4) On ST. GEORGE the reactions that push the energy acceptance (+/-8%) also pushes the angular acceptance (+/-40 mrad). This doesn’t seem to be true in SECAR: 15O(p,g)19Ne pushes the energy acceptance (+/-3.1%) but not in the angular acceptance (only +/-15.6 mradvs. SECAR’s +/-25 mradacceptance). Is there a reason SECAR was designed with angular acceptance so much larger than the energy acceptance?+  * 4) On ST. GEORGE the reactions that push the energy acceptance (+/-8%) also pushes the angular acceptance (+/-40 mrad). This doesn’t seem to be true in SECAR: 15O(p,g)19Ne pushes the energy acceptance (+/-3.1%) but not in the angular acceptance (only +/-15.6 mradvs. SECAR’s +/-25 mrad acceptance). Is there a reason SECAR was designed with angular acceptance so much larger than the energy acceptance?
   * 5) Purpose of SECAR Section 3?   * 5) Purpose of SECAR Section 3?
   * 6) On slide 6, what is the meaning of the arrows the Effective Field Length and Good Field Regions?   * 6) On slide 6, what is the meaning of the arrows the Effective Field Length and Good Field Regions?
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   * 14) Alignment example not clear.   * 14) Alignment example not clear.
   * 15) Does higher order effects give us details about the initial beam characteristic? Or do HO effects tell us that the beam line is different than what we think? ( e.g. field imperfections in the magnets etc.)   * 15) Does higher order effects give us details about the initial beam characteristic? Or do HO effects tell us that the beam line is different than what we think? ( e.g. field imperfections in the magnets etc.)
 +{{ :questions_answers_lecture4.pdf |Answers}}
 +
/srv/thewikis/JIOSS/data/attic/questions_area.1537807903.txt.gz · Last modified: 2018/09/24 12:51 by berg

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