%% Create the geometry 2 for the T-REX experiment % uses the upper ellipse and constant radius center column. % bottom axial position zbottom=305; % mm radialindent=8; %mm ztop=305+230; %mm % Outer vacuum vessel splid=1; geomcells(splid).Dval=0; % V geomcells(splid).order=3; geomcells(splid).dim=2; geomcells(splid).name='vacuum vessel'; geomcells(splid).type=0; geomcells(splid).periodic=0; rmax=60; %mm lw=linspace(40,rmax,20); rw=linspace(zbottom,ztop,60); uw=flip(linspace(0,rmax,30)); geomcells(splid).points=flip([zbottom*ones(size(lw')) lw'; rw' rmax*ones(size(rw')); ztop*ones(size(uw')) uw'; linspace(ztop,ztop+3,10)' -1*ones(10,1); (ztop+3)*ones(30,1) linspace(0,rmax+3,30)'; linspace(ztop+3,zbottom-3,60)' (rmax+3)*ones(60,1); (zbottom-3)*ones(30,1) linspace(rmax+3,40,30)'; linspace(zbottom-3,zbottom,10)' 40*ones(10,1)]/1e3); % Central electrode splid=2; geomcells(splid).Dval=-20000; % V geomcells(splid).order=3; geomcells(splid).dim=2; %splines(1).epsge=1e-6; %splines(1).epsce=1e-6; geomcells(splid).name='central electrode'; geomcells(splid).type=0; geomcells(splid).periodic=0; lw=linspace(-1,10,15); rw=linspace(zbottom+30.5,429.5,60); uw=flip(linspace(-1,10,10)); %ellipse= lowerring=linspace(zbottom,zbottom+29.5,40); geomcells(splid).points=[ (zbottom+30)*ones(size(lw')) lw'; rw' 10*ones(size(rw')); 430*ones(size(uw')) uw'; flip(rw') -1*ones(size(rw'))]/1e3; % Bottom plate splid=3; geomcells(splid).Dval=0; % V geomcells(splid).order=3; geomcells(splid).dim=2; %splines(1).epsge=1e-6; %splines(1).epsce=1e-6; geomcells(splid).name='vacuum vessel'; geomcells(splid).type=0; geomcells(splid).periodic=0; lw=linspace(10,24,40); geomcells(splid).points=flip([ zbottom*ones(size(lw')) lw'; linspace(zbottom,zbottom-3,10)' 24*ones(10,1); (zbottom-3)*ones(size(lw')) flip(lw'); linspace(zbottom-3,zbottom,10)' 10*ones(10,1);]/1e3); % Outer electrode splid=4; geomcells(splid).Dval=0; % V geomcells(splid).order=3; geomcells(splid).dim=2; %splines(1).epsge=1e-6; %splines(1).epsce=1e-6; geomcells(splid).name='outer electrode'; geomcells(splid).type=0; geomcells(splid).periodic=0; lbaser=linspace(24+radialindent,24,20); base=linspace(zbottom+30,349,80); lowerbase=linspace(zbottom,zbottom+29.5,50); %tiltedwall alpha=0.1745; tiltedz=linspace(350,180+250,500); tiltedr=(tiltedz-tiltedz(1))*tan(alpha)+24; %tilted ellipse cosa=cos(alpha); sina=sin(alpha); r_c=28; z_c=375; Lz=25; Lr=5; deltar=(tiltedr-r_c); deltaz=(tiltedz-z_c); D=((deltaz*cosa+deltar*sina)/Lz).^2+((deltaz*sina-deltar*cosa)/Lr).^2; w=1-D; ellipsez=tiltedz(w>=0); deltaz=ellipsez-z_c; a=(Lr^2*sina^2+Lz^2*cosa^2); b=2*deltaz*sina*cosa*(Lr^2-Lz^2); c=-Lr^2*Lz^2 +deltaz.^2*(Lr^2*cosa^2+Lz^2*sina^2); tiltedr(w>=0)=r_c+(-b-sqrt(b.^2-4*a.*c))/2/a; axialend=linspace(tiltedr(end)+0.5,39.5,15); upperend=flip(linspace(zbottom+30,180+250,60)); geomcells(splid).points=flip([ base' 24*ones(size(base))'; tiltedz' tiltedr'; (180+250)*ones(size(axialend')) axialend'; upperend' 40*ones(size(upperend')); zbottom+30*ones(size(lbaser')) linspace(40,24,20)']/1e3); % Dielectric ring % splid=5; % geomcells(splid).Dval=0; % V % geomcells(splid).order=3; % geomcells(splid).dim=2; % %splines(1).epsge=1e-6; % %splines(1).epsce=1e-6; % geomcells(splid).name='dielectric rings'; % geomcells(splid).type=2; % geomcells(splid).periodic=0; % ow=flip(linspace(zbottom,zbottom+30,130)); % lw=flip(linspace(10.1,23.5,30)); % rw=linspace(zbottom,429.5,60); % uw=flip(linspace(0,10,10)); % geomcells(splid).points=[flip([upperend', 40*ones(size(upperend'))]); % flip([(180+250)*ones(size(axialend')) axialend']); % flip([tiltedz' tiltedr']); % flip([base' 24*ones(size(base))']); % ow' 24*ones(size(ow')); % zbottom*ones(size(lw')) lw'; % rw' 10*ones(size(rw')); % 430*ones(size(uw')) uw']/1e3; % Dielectric ring inner splid=5; geomcells(splid).Dval=0; % V geomcells(splid).order=2; geomcells(splid).dim=2; %splines(1).epsge=1e-6; %splines(1).epsce=1e-6; geomcells(splid).name='dielectric ring center'; geomcells(splid).type=2; geomcells(splid).periodic=0; ow=flip(linspace(zbottom-3,zbottom+30,130)); lw=flip(linspace(10.1,23.5,30)); rw=linspace(zbottom-3,334.5,50); uw=flip(linspace(-1,10,10)); geomcells(splid).points=[(zbottom-3)*ones(size(uw')) flip(uw'); rw' 10*ones(size(rw')); 335*ones(size(uw')) uw'; flip(rw') -1*ones(size(rw'))]/1e3; % Dielectric ring outer splid=6; geomcells(splid).Dval=0; % V geomcells(splid).order=2; geomcells(splid).dim=2; %splines(1).epsge=1e-6; %splines(1).epsce=1e-6; geomcells(splid).name='dielectric ring center'; geomcells(splid).type=2; geomcells(splid).periodic=0; ow=flip(linspace(zbottom,zbottom+30,130)); lw=flip(linspace(10.1,23.5,30)); rw=linspace(zbottom-3,334.5,50); uw=linspace(40,24,20); geomcells(splid).points=[rw' uw(1)*ones(size(rw')); 335*ones(size(uw')) uw'; flip(rw') uw(end)*ones(size(rw')); (zbottom-3)*ones(size(uw')) flip(uw'); ]/1e3; %% Plots f=figure; for k=1:length(geomcells) plothandle=plot(geomcells(k).points(:,1), geomcells(k).points(:,2),'k-x','linewidth',1.5); hold on %geomcells(k).points=[geomcells(k).Z; geomcells(k).R]; order=geomcells(k).order; knots=linspace(0,1,size(geomcells(k).points,1)-(order-2)); knots=augknt(knots, order); sizec=size(geomcells(k).points,1); order=length(knots)-sizec(end); coeffs=geomcells(k).points'; geomcells(k).periodic=0; pp=spmak(knots,coeffs); s=linspace(0,1,1000); fittedpos=fnval(pp,s); plot(fittedpos(1,:),fittedpos(2,:),'x-') end legend(plothandle,{'Gun geometry'},'location','southwest') f.PaperUnits='centimeters'; f.PaperSize=[12,8]; xlabel('z [m]') ylabel('r [m]') axis equal savegeomtoh5('exp_outer_with_vessel_geom_2.h5',geomcells,1e-2,true); % print(f,name,'-dpdf','-fillpage') % savefig(f,name) % set(f, 'Color', 'w'); % export_fig(f,name,'-eps') hold off