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Copy pathsingle_file_curvaturePlotting.m
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single_file_curvaturePlotting.m
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% close all;
clear all;
%Ep_Xe = 8.44; %Ep_Ne = 16.848; %Ep_HeI = 21.22; %Ep_HeII = 40.8;
E_photon = 21.22;
EF = 4.43;
% -------------files: --------------------------------------------------------
file_1 = sprintf('SPE3428_11.txt');
data = dlmread(file_1,'\t',82,0);
siz = size(data);
%------- Normalization ----------------------------------------------------
for j=2:siz(2)
data_norm_linewise(:,j) = smooth(data(:,j)./max(data(:,j)),5); %line- / energywise normalization
end;
for i = 1:siz(1)
data_norm_columnwise(i,:) = smooth(data(i,:)/max(data(i,:)),5);
end;
data_norm = data_norm_linewise;
for i = 1:siz(2)
kinetic_energy(:,i) = data(:,1);
binding_energy(:,i) = E_photon - EF - kinetic_energy(:,i);
end;
center_x_pixel = 139; %CHANGE !
%ANGULAR / MOMENTUM SCALE X - Detector given range
detector_angle = 28;
for i = 1:siz(2)
k_parallel_x(:,i) = 0.5123*sqrt(kinetic_energy(:,1))*sin(((i - center_x_pixel)*detector_angle/256)*2*pi/360);
end;
k_parallel_x_1D = k_parallel_x(siz(1),:);
delta_x = abs(k_parallel_x(2,1)-k_parallel_x(2,2));
delta_E = abs(binding_energy(1,1)-binding_energy(2,1));
%-------calculation of EDC,MDC, 2ndDerivs and Curvatures---------------
% erste_diff = zeros(siz(1),siz(2));
% zweite_diff = zeros(siz(1),siz(2));
curvature_MDC_1 = zeros(siz(1),siz(2));
curvature_EDC_1 = zeros(siz(1),siz(2));
strength = 5;
int = 2;
for i = 1:siz(1)
if i+int<siz(1) MDC_1(i,:) = mean(data(i:i+int,:),1);
else MDC_1(i,:) = mean(data(i-int:i,:),1); end;
MDC_norm_1(i,:) = smooth(MDC_1(i,:) ./ max(MDC_1(i,:)),15);
deriv_MDC_1(i,:) = del2(MDC_norm_1(i,:),delta_x);
deriv_MDC_norm_1(i,:) = smooth(-1 .* deriv_MDC_1(i,:) ./ max(deriv_MDC_1(i,:)),strength);
C_1(i,:) = 0.01 * max(abs(gradient(MDC_norm_1(i,:),delta_x))).^2;
curvature_MDC_1(i,:) = del2(smooth(MDC_norm_1(i,:),strength),delta_x)./(sqrt(C_1(i,:) + gradient(smooth(MDC_norm_1(i,:),strength),delta_x).^2)).^3;
curvature_MDC_norm_1(i,:) = smooth(-1 .* curvature_MDC_1(i,:) ./ max(curvature_MDC_1(i,:)),strength);
end;
MDC_int = sum(MDC_1(:,:),1);
%------------weiter----- EDC s---------------------------------------------
for j = 2:siz(2)
if j+int<siz(2) EDC_1(:,j) = mean(data(:,j:j+int),2);
else EDC_1(:,j) = mean(data(:,j-int:j),2); end;
EDC_norm_1(:,j) = smooth(EDC_1(:,j) ./ max(EDC_1(:,j)),15);
deriv_EDC_1(:,j) = del2(EDC_norm_1(:,j),delta_E);
deriv_EDC_norm_1(:,j) = smooth(-1 .* deriv_EDC_1(:,j) ./ max(deriv_EDC_1(:,j)),strength);
C2_1(:,j) = 0.01 * max(abs(gradient(EDC_norm_1(:,j),delta_E))).^2;
curvature_EDC_1(:,j) = del2(smooth(EDC_norm_1(:,j),strength),delta_E) ./ (sqrt(C2_1(:,j) + gradient(smooth(EDC_norm_1(:,j),strength),delta_E).^2)).^3;
curvature_EDC_norm_1(:,j) = smooth(-1 .* curvature_EDC_1(:,j) ./ max(curvature_EDC_1(:,j)),strength);
end;
EDC_int = sum(EDC_1(:,:),2);
%______________plotting____________________________________________________
xscale = 0.45;
%%%energy range:
en_start=1; en_end=siz(1)
figure(11); clf; fac = 1;
subplot(2,4,[1 5]);
imagesc(k_parallel_x_1D,binding_energy(en_start:en_end,1),data(en_start:en_end,:));
colormap(gray); caxis([100 5000]);
set(gca,'ydir','reverse'); grid off; shading interp; box on;
xlabel('k_{parallel_x} [1/Å]'); ylabel('Binding energy [eV]');
xlim([-0.35 0.35]); % ylim([-0.05 0.4]);
subplot(2,4,[2 6]);
imagesc(k_parallel_x_1D,binding_energy(en_start:en_end,1),data_norm(en_start:en_end,:));
colormap(temp);
set(gca,'ydir','reverse'); grid off; shading interp; box on;
xlabel('k_{parallel_x} [1/Å]');
xlim([-0.35 0.35]); % ylim([-0.05 0.4]);
subplot(2,4,[3 7]);
imagesc(k_parallel_x_1D,binding_energy(en_start:en_end,1),curvature_MDC_norm_1(en_start:en_end,:)*fac);
colormap(temp); caxis([0 0.9]);
title('Curvature from MDCs');
set(gca,'ydir','reverse'); xlabel('k_{parallel_x} [1/Å]');
xlim([-0.35 0.35]);
subplot(2,4,[4 8]);
imagesc(k_parallel_x_1D,binding_energy(en_start:en_end,1),curvature_EDC_norm_1(en_start:en_end,:)*fac);
colormap(temp); caxis([0 0.9]);
title('Curvature from EDCs');
set(gca,'ydir','reverse'); xlabel('k_{parallel_x} [1/Å]');
xlim([-0.35 0.35]);
lower = 1;
upper = 0.3;
%colorm = flipud(gray);
colorm = 'hot';
figure(111)
clf; fac = 1;
%subplot(1,2,1);
surf(k_parallel_x,binding_energy,binding_energy*0,real2rgb(data,colorm,[lower*min(min(data)) upper*max(max(data))]));
view(2), shading interp;
set(gca,'ydir','reverse'); grid off; shading interp; box on;
xlabel('k_{parallel_x} [1/Å]','FontSize',15); ylabel('Binding energy [eV]','FontSize',15);
xlim([-0.45 0.45]); % ylim([-0.05 0.4]);
set(gca,'FontSize',15);
% subplot(1,2,2);
% plot(EDC_int,binding_energy(en_start:en_end,1),'LineWidth',3);
% set(gca,'ydir','reverse');
% ylabel('Binding energy [eV]','FontSize',15);
% xlabel('intensity','FontSize',15);
% set(gca,'FontSize',15);