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--- group_secar2.0 [2018/09/11 16:37]
wagner
+++ group_secar2.0 [2018/09/11 16:50]
wagner
@@ Line 1: / Line 1: @@
 ====== Group SECAR2.0 ======
--by Alex, Nadeesha and Louis-
+-- by Alex, Nadeesha and Louis --
 ===== DAY1=====
@@ Line 48: / Line 48: @@
 === Quadrupole strenght variations for emittance measurment ===
-|B [T]	|Xmax[m]	|ap [m]	|Bρ* [Tm]	|L<sub>Q7</sub> [m]	|K|
+|B<sub>Q7</sub> [T]	|X<sub>max</sub>[m]	|ap [m]	|Bρ* [Tm]	|L<sub>Q7</sub> [m]	|K|
 |0.02	|2.91E-03	|0.13	|0.8	|0.34	|0.065384615|
 |0.01	|2.27E-03	|0.13	|0.8	|0.34	|0.032692308|
@@ Line 61: / Line 61: @@
 *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 |}}
+Fit result for parabola X<sub>max</sub><sup>2</sup> = σ<sub>11</sub> = a·K<sup>2</sup> - 2ab·K + ab<sup>2</sup> + c is:\\
 a = 0.000362572706 \\
 b = 0.0834414129893 \\
 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.\\
-Emittance = 3.045387898578198e-07  π m rad= 0.3 π mm mrad.\\
+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 calculated from fit parameter  = 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.\\
-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.\\

JINA-CEE ION OPTICS SUMMER SCHOOL: JIOSS 2018

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