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Beam_size.m @ 728

Last change on this file since 728 was 728, checked in by hodnevuc, 7 years ago

File size: 572 bytes

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1	close all;clear all;clc
2	x0=[5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.0 6.1]*7.94;%mm
3	Ibeam=-[630 630 630 630 630 626 612 540 360 150 0]+630; %mV
4	f = fit(x0',Ibeam','gauss1')
5	A=f.a1;
6	Xpos=f.b1;
7	Sigma_b=f.c1/sqrt(2);
8	figure;
9	plot(x0,Ibeam,'ok','linew',2)
10	x=min(x0):0.1:max(x0)+1;
11	hold on
12	Gauss=A.exp(-((x-Xpos)/(sqrt(2)Sigma_b)).^2);
13	plot(x,Gauss,'r','linew',2)
14	% set(gca,'fontsize',16)
15	grid on
16	legend('Data','Gauss fit',2)
17	title(['x_{pos}=' num2str(Xpos) ' mm; \sigma=' num2str(Sigma_b) ' mm '])
18	xlabel('Grating position, [mm]')
19	ylabel('Amplitude, [a.u.]')

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