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group_secar2.0 [2018/09/11 16:38]
wagner
group_secar2.0 [2018/09/11 16:40]
wagner
Line 61: Line 61:
 *Bρ the magnetic rigidity was extracted from COSY by comand CONS(CHIM)\\ *Bρ the magnetic rigidity was extracted from COSY by comand CONS(CHIM)\\
  
-**Fit of the data to parabola**+=== Fit of the data to parabola === 
 {{ :plot.png?400 |}} {{ :plot.png?400 |}}
  
Line 67: Line 68:
 b = 0.0834414129893 \\ b = 0.0834414129893 \\
 c = 3.506973286e-07\\ c = 3.506973286e-07\\
-Double check for beam size calculation in Q7: X_calculated = 3.13mm, X_cosy_read_out = 3.16mm at the Q7 exit.\\+The consistency check for beam size calculation in Q7 shows: X_calculated = 3.13mm, X_cosy_read_out = 3.16mm at the Q7 exit.\\
 Emittance = 3.045387898578198e-07  π m rad= 0.3 π mm mrad.\\ Emittance = 3.045387898578198e-07  π m rad= 0.3 π mm mrad.\\
 Start beam emittance= XX * AX= 0.2 π mm mrad, so the emittance grows from the start to the focal point.\\ Start beam emittance= XX * AX= 0.2 π mm mrad, so the emittance grows from the start to the focal point.\\
-This rmittance grow is possibly due to the optics aberrations. Input COSY file does a 4th-order-calculation. Also the measured points don't fit the parabola ideally, i.e. optics is non-linear.\\+This rmittance grow is possibly due to the optics aberrations. Input COSY file does a 4th-order-calculation. Also the measured points don't fit the parabola ideally, i.e. the optics is non-linear.\\
  
  
/srv/thewikis/JIOSS/data/pages/group_secar2.0.txt · Last modified: 2018/09/13 16:49 by plastun