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group_secar2.0 [2018/09/11 16:24]
wagner
group_secar2.0 [2018/09/11 16:38]
wagner
Line 28: Line 28:
 {{ :reaction_kinematics.png?400 |}} {{ :reaction_kinematics.png?400 |}}
  
-Reaction summary for <sup>45</sup>V+p→γ+<sup>46</sup>Cr, Ek(<sup>45</sup>V)=135 MeV\\+Reaction summary for <sup>45</sup>V+p→γ+<sup>46</sup>Cr, E<sub>kin</sub>(<sup>45</sup>V)=135 MeV\\
 The maximum γ energy is 8.481 MeV. The minimum γ energy is 7.249 MeV.\\ The maximum γ energy is 8.481 MeV. The minimum γ energy is 7.249 MeV.\\
 The maximum <sup>46</sup>Cr energy is **132.634 MeV**. The minimum <sup>46</sup>Cr energy is **131.402 MeV**. The maximum <sup>46</sup>Cr angle is **0.13 degrees**.\\ The maximum <sup>46</sup>Cr energy is **132.634 MeV**. The minimum <sup>46</sup>Cr energy is **131.402 MeV**. The maximum <sup>46</sup>Cr angle is **0.13 degrees**.\\
  
-Assume normalized emittance 0.6 π mm mrad provided from ReA3 at 3.0 MeV/u. \\ +If we assume a normalized emittance of 0.6 π mm mrad provided from ReA3 at 3.0 MeV/u the geometric emittance is 0.6/0.08 = 7.5 π mm mrad.\\ 
-Geometric emittance is 0.6/0.08 = 7.5 π mm mrad.\\ +With the spot size on the target, designed to be ±0.5 mm (), the anglular spread then is ±15 mrad.\\ 
-Spot size on the target is ±0.5 mm (full width). Then anglular spread is ±15 mrad.\\ +Adding the calculated spread from the reaction with the target of 0.13 deg = ±2.26 mrad we get ±17.26 mrad of angular spread.\\ 
-Adding the effect from the target of 0.13 deg = ±2.26 mrad we get ±17.26 mrad of angular spread:\\ +⇒COSY beam input: SB 0.0005 **0.01726** 0 0.0005 **0.01726** 0 0 0.0047 0 0 0 ;\\ 
-SB 0.0005 0.01726 0 0.0005 0.01726 0 0 0.0047 0 0 0 ;\\ +Output for this beam passing the dipole:
 {{ :dipole46cr13.png?400 |}} {{ :dipole46cr13.png?400 |}}
  
-**DAY2**\\ +===== DAY2 ===== 
-**Emittance measurement**\\ + 
-Distance between Q7 center and focal plane is 6.085 m.+==== Emittance Measurement ==== 
 + 
 +The distance between the center of Q7 and the focal plane FP2 is 6.085 m as extracted from the script file.
 {{ :emittance.png?400 |}} {{ :emittance.png?400 |}}
  
-**Q7 strenght variation:**\\ +=== Quadrupole strenght variations for emittance measurment === 
-|B [T] |Xmax[m] |ap [m] |Brho* [Tm] |L [m] |K|+ 
 +|B<sub>Q7</sub> [T] |X<sub>max</sub>[m] |ap [m] |* [Tm] |L<sub>Q7</sub> [m] |K|
 |0.02 |2.91E-03 |0.13 |0.8 |0.34 |0.065384615| |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| |0.01 |2.27E-03 |0.13 |0.8 |0.34 |0.032692308|
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 |-0.06 |2.26E-03 |0.13 |0.8 |0.34 |-0.196153846|\\ |-0.06 |2.26E-03 |0.13 |0.8 |0.34 |-0.196153846|\\
  
-*Brho 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**
/srv/thewikis/JIOSS/data/pages/group_secar2.0.txt · Last modified: 2018/09/13 16:49 by plastun