Implementation of Spin Rotator.

geant4/spin_rot/run/sr_transmit.m

@@ -0,0 +1,44 @@
+% Transmission of Spin Rotator as a function of angular dispersion of incoming muons.
+% Settings B = 360 G, E = 21 kV.
+d = [...
+0.0   89.0 
+0.2   88.8
+0.4   86.8
+0.7   81.0
+1.0   74.1
+1.5   62.6
+2.0   51.7
+2.5   45.6
+3.0   42.0
+3.5   37.71
+4.0   34.03
+];
+
+d1 = [...
+0.0   92.99
+0.2   92.58
+0.4   91.80
+0.7   93.08
+1.0   92.85
+1.5   87.82
+2.0   75.97
+2.5   62.93
+3.0   49.73
+3.5   40.12
+4.0   34.66
+];
+
+ang_sigma = d(:,1);  sr_trans = d(:,2);
+ang_sigm1 = d1(:,1); sr_trans1 = d1(:,2);
+hp = plot(ang_sigma, sr_trans,'ro-');
+hold on
+hp1= plot(ang_sigm1, sr_trans1,'bo-');
+set(hp, 'MarkerFaceColor','w','MarkerSize',8)
+set(hp1,'MarkerFaceColor','w','MarkerSize',8)
+legend('SR ON','SR OFF',3)
+axis([0 4 0 100])
+grid on
+xlabel('Muon beam angular dispersion \sigma (deg.)','FontSize',14)
+ylabel('Spin Rotator transmission (%)','FontSize',14)
+text(2.5, 85, [{'E = 21 kV, B = 360 G'},{'10 mm symm. capacitor'},{'p rejection: total'}],'FontSize',14)
+set(gca,'FontSize',14)