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group_secar2.0 [2018/09/11 16:38] wagner |
group_secar2.0 [2018/09/11 16:46] wagner |
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====== Group SECAR2.0 ====== | ====== Group SECAR2.0 ====== | ||
- | -by Alex, Nadeesha and Louis- | + | -- by Alex, Nadeesha and Louis -- |
===== DAY1===== | ===== DAY1===== | ||
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*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 |
{{ : | {{ : | ||
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b = 0.0834414129893 \\ | b = 0.0834414129893 \\ | ||
c = 3.506973286e-07\\ | c = 3.506973286e-07\\ | ||
- | Double | + | σ< |
+ | The consistency | ||
Emittance = 3.045387898578198e-07 | Emittance = 3.045387898578198e-07 | ||
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.\\ |