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fcn1Event.m
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fcn1Event.m
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function [input,output,G1,photons,PE,flags] = fcn1Event(input,flags,handles,G,V)
photons.count = 0;
G1 = [];
timeOffset = 25;%rand*3+45; %(ns), TYPICALLY ZERO
energyGain = 1; %TYPICALLY 1
if exist('V','var') && ~isempty(V)
input.eventNumber = V(4);
timeOffset = V(2);
energyGain = V(3);
else
input.eventNumber = eval(handles.GUI.edit1.String);
end
C_G2N = [ 0 0 1
0 1 0
1 0 0 ]; %GEANT 2 NED
%DEFINE PIXEL INFO --------------------------------------------------------
[input, flags] = fcnDefinePixels(input,flags,handles);
flags.update.detectorgeometry=0; %geometry all updated
%INCOMING ANGLE ----------------------------------------------------
if flags.status.vertexfixedangle %if handles.GUI.checkbox59.Value==1
vel = fcnvec2uvec([-1 0 0]); %fixed
else
vel = isovecs(1); %random
%vel = diffusevecs(1,[0 0 1]);
end
rpy = fcnVEC2RPY(vel); %rpy(1) = pi*(rand*2-1);
C = C_G2N*fcnRPY2DCM_W2B(rpy);
%RANDOM INSIDE VOLUME
if flags.status.vertexcentered
offset = [2.5 2.5 0]; %centered
else
switch input.cube.shapeID
case 3 %cylinder
cc = fcnSC2CC(input.cube.radius*sqrt(rand), 0, rand*2*pi-pi);
offset = [cc(1:2) input.cube.height*(rand-1/2)];
otherwise %cube
offset = 2*input.cube.Lr.*(rand(1,3)-.5);
if flags.status.fibers && flags.status.MC && strcmp(G.particleName,'PointSource')
offset(1:2) = 2.5+(rand(1,2)-.5)*5; %5mm FIBERTRAIN 64CH
%offset(3) = -421;
end
end
end
%FROM A FIXED POINT
% particleOrigin = [5000 0 0];
% vel = fcnvec2uvec([offset - particleOrigin]);
% rpy = fcnVEC2RPY(vel); rpy(1) = pi*(rand*2-1);
% C = C_G2N*fcnRPY2DCM_W2B(rpy);
%RANDOM ON DETECTOR WALL
if flags.status.vertexonwall %if handles.GUI.checkbox52.Value==1
p1 = offset; vel = -vel;
if input.cube.shapeID==3 %cylinder
p1xy = p1(:,[1 2]);
velxy = vel(:,[1 2]);
a = sum(velxy.^2,2);
b = 2*sum(p1xy.*velxy,2);
c = sum(p1xy.^2,2) - input.cube.radius^2;
dtHitRadius = (-b+sqrt(b.^2-4*a.*c))./(2*a); %quadratic
p1z = p1(:,3);
velz = vel(:,3);
dtHitPlane = (sign(velz)*input.cube.height/2 - p1z)./ velz; %time needed to hit each of the 6 planes given initial pos and vel
dt = min([dtHitRadius dtHitPlane],[],2); %time it takes each photon to strike the closest CCD plane
else
dtHitPlane = abs((sign(vel).*input.cube.Lr - p1)./ vel); %time needed to hit each of the 6 planes given initial pos and vel
dt = min(dtHitPlane,[],2); %time it takes each photon to strike the closest CCD plane
end
offset = p1 + vel*dt;
end
G1.p0 = offset;
%GEANT STUFF --------------------------------------------------------------
en = mod(input.eventNumber,G.ne); %eventnumber
i = G.ve==en;
v1 = G.ei(i,1):G.ei(i,2);
if ~any(v1) %NO GEANT DATA
[input, output] = fcnBuffer2Memory(input,flags,handles,photons);
G1.na = 0; G1.nua = 0; G1.uake1 = 0;
G1.nupid = 0; G1.upid = [];
G1.nutid = 0; G1.utid = [];
G1.uvec(1,:) = vel./norm(vel);
G1.upidflag = ones(1,G1.nupid);
G1.nupidv = zeros(1,G1.nupid);
input.tMin = 0;
input.tMax.current = 100;
fprintf('Warning!! No GEANT data found for this event.\n')
return
end
x = double(G.x(v1,:));
if isfield(G,'double')
x(:,2) = G.double(v1); %PDGEncoding has to be read as a double precision to not lose accuracy
end
switch size(x,2)
case 10 %NEW MITCH 2015
x = sortrows(x,[3 8]); %sort by tid then time
pos=x(:,5:7)*C + offset;
j=[false; diff(x(:,3))==0]; %find changes in tid
if x(1,2)==-12 %nuebar
j(1)=true;
a=max(x(:,3))+1; x(1,3)=a; %new nuebar trackID
x(x(:,4)==0,4)=a; %set n and e+ to have this parent id
x(1,4)=0; %nuebar parent id = 0
j=find(j); %post-step
i=j-1; i=max(i,1); %prestep
else
j=find(j); %post-step
i=j-1; %prestep
end
%a=x(j,10)>0; if any(a); t0=min(x(i(a),8)); x(:,8)=x(:,8)-t0; end %OPTIONAL. Sets first dE time to 0 ns
G1.p1 = pos(i,:);
G1.p2 = pos(j,:);
G1.t1 = x(i,8)+timeOffset;
G1.t2 = x(j,8)+timeOffset;
G1.ke1 = x(i,9)*energyGain;
G1.ke2 = x(j,9)*energyGain;
G1.de = x(j,10)*energyGain;
pid = x(j,2); %particleid
tid = x(j,3); %trackid
ptid = x(j,4); %parent trackid
nx=numel(j);
otherwise %OLD
x = sortrows(x,[8 17]); %sort by tid then time
G1.p1 = x(:,10:12)*C + offset; nx=size(x,1);
G1.p2 = x(:,13:15)*C + offset;
G1.t1 = x(:,16)+timeOffset;
G1.t2 = x(:,17)+timeOffset;
G1.ke1 = x(:,18)*energyGain; %begin ke
G1.ke2 = x(:,19)*energyGain; %end ke
G1.de = x(:,20)*energyGain;
pid = x(:,7); %particleid
tid = x(:,8); %trackid
ptid = x(:,9); %parent trackid
end
G1.pname = fcnpid2name(pid);
G1.p1inside = fcninsidedetector(G1.p1, input); G1.p1inside(1)=true;
G1.p2inside = fcninsidedetector(G1.p2, input);
G1.parentinside = true(nx,1);
G1.x = x;
G1.pid = pid; %particle ID
G1.tid = tid; %track ID
G1.ptid = ptid; %parent track ID
G1.upid = fcnunique(pid)'; G1.nupid=numel(G1.upid);
[G1.utid, G1.utidi] = fcnunique(tid); G1.nutid=numel(G1.utid); %utidfi = unique track ID's first indices
G1.ppid = fcntid2pid(ptid,tid,pid); %parents pardicle ID
%DENDROGRAM ANCESTRY MATRIX -----------------------------------------------
x = nan(G1.nutid,30); x(:,1) = G1.utid;
J = zeros(max(G1.utid),1); J(G1.utid) = 1:G1.nutid;
for i = 2:30 %generations
j = x(:,i-1)>0;
if ~any(j); break; end
x(j,i) = G1.ptid(G1.utidi(J(x(j,i-1))));
end
x = x(:,1:i-1);
G1.dendrogram = x;
minx = minnonzero(x,2);
G1.atid = minx(J(G1.tid)); %ancestor track ID
G1.ua = fcnunique(G1.atid); %unique ancestors (ptid==0)
G1.nua = numel(G1.ua); %number of ancestors
%ANCESTOR UVECS -----------------------------------------------------------
G1.uake1 = zeros(G1.nua,1);
G1.uvec = zeros(G1.nua+1,3);
G1.uvec(1,:) = [0 0 1]*C; %always the same angle
for i=1:G1.nua
j=find(tid==G1.ua(i),1,'first');
G1.uvec(i+1,:) = fcnvec2uvec(G1.p2(j,:)-G1.p1(j,:));
G1.uake1(i) = G1.ke1(j); %unique ancestor initial ke1
end
if norm(G1.uvec(1,:))==0; G1.uvec(1,:)=G1.uvec(2,:); end
G1.upidflag = ones(1,G1.nupid);
G1.upidv{i} = cell(1,G1.nupid);
G1.nupidv = zeros(1,G1.nupid);
for i = 1:G1.nupid
v = fcnunique(G1.tid(G1.pid==G1.upid(i)));
G1.upidv{i} = v; %utids per upid
G1.nupidv(i) = numel(v); %number of utids per upid
end
[G1.upidname,G1.upidcolor,G1.upidmass,G1.upidcharge] = fcnpid2name(G1.upid);
%GET PHOTONS --------------------------------------------------------------
P = cell(G1.nutid,1);
for i=1:G1.nutid
[P{i}, G1] = fcnphotonsIC(input, G1, i);
end
P = cat(1,P{:});
[photons, PE]= fcnphotontransport(input, P, G1, flags);
%FIND CURRENT TMAX --------------------------------------------------------
input.tMin = 0;
if photons.count>0; input.tMax.current=max(photons.endTime)+10; else input.tMax.current=max(G1.t2); end
% if flags.status.MC
% n=V(1);
% %n=50;
% i=find(PE.t<25 & PE.pixel==1 & abs(PE.xpixel(:,3))<90); ni=numel(i);
% PE.pixel(:)=0; PE.pixel(i(randperm(ni,n)))=1;
% end
%DUMP MCP BUFFER MEASUREMENTS INTO MEMORY ---------------------------------
[input, output] = fcnBuffer2Memory(input,flags,handles,PE);
if photons.count>500000
fprintf('WARNING! LARGE PHOTON COUNT: %.2fM photons created\n',double(photons.count)/1E6)
end