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| !------------------------------------------------------------------------------ | ||
| ! (c) Copyright, 2024 by the Regents of the University of California. | ||
| ! Version: 1.2 | ||
| ! Author: Ji Qiang | ||
| ! Description: Given the Fourier coefficients of RF field on axis and produce a | ||
| ! field data and its derivatives on axis. | ||
| ! Input: rfdata.in: | ||
| ! Output: rfdata.out: reconstruct the field from the Fourier coefficients. | ||
| ! rfdatax: is the one to be used for the IMPACT-T | ||
| ! simulation. | ||
| ! rfdata.tmp: shifted Ez vs. z. This file can be used as rfdata.in to | ||
| ! generate the Fourier coefficients of shifted RF data. This | ||
| ! coefficients together with the original rf data Fourier | ||
| ! coefficients will be used to model the fields in TWS. | ||
| program rfcoef | ||
| implicit double precision (a-h,o-z) | ||
| integer, parameter :: Ndata = 50000 | ||
| integer, parameter :: Ncoef = 200 | ||
| double precision, dimension(Ndata) :: zdata,edata | ||
| double precision, dimension(Ncoef) :: Fcoef,Fcoef2 | ||
|
|
||
| emax = 0.0d0 | ||
| open(3,file="rfdata.in",status="old") | ||
| read(3,*)ntmp | ||
| ncoefreal = (ntmp-1)/2 + 1 | ||
| print*, "ncoefreal: ",ncoefreal | ||
| read(3,*)zst | ||
| read(3,*)zend | ||
| read(3,*)tmp1 | ||
| read(3,*)Fcoef(1) | ||
| do i = 2, ncoefreal | ||
| read(3,*)Fcoef(i) | ||
| read(3,*)Fcoef2(i) | ||
| enddo | ||
| close(3) | ||
|
|
||
| zdata(1) = zst | ||
| zdata(ndatareal) = zend | ||
|
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||
| print*,"How many data points you want?" | ||
| read(*,*)ndatareal | ||
|
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| print*,"zdata1: ",zdata(1),zdata(ndatareal) | ||
| zlen = zdata(ndatareal)-zdata(1) | ||
| zhalf = zlen/2.0 | ||
| zmid = (zdata(ndatareal)+zdata(1))/2 | ||
| h = zlen/(ndatareal-1) | ||
| pi = 2*asin(1.0) | ||
| print*,"The RF data number is: ",ndatareal,zlen,zmid,h | ||
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||
| open(8,file="rfdata.out",status="unknown") | ||
| do i = 1, ndatareal | ||
| !zz = zdata(i) - zmid | ||
| zz = (i-1)*h+zdata(1) - zmid | ||
| tmpsum = 0.5*Fcoef(1) | ||
| tmpsump = 0.0 | ||
| tmpsumpp = 0.0 | ||
| tmpsump3 = 0.0 | ||
| do j = 2,ncoefreal | ||
| tmpsum = tmpsum + Fcoef(j)*cos((j-1)*2*pi*zz/zlen) + & | ||
| Fcoef2(j)*sin((j-1)*2*pi*zz/zlen) | ||
| tmpsump = tmpsump-(j-1)*2*pi*Fcoef(j)*sin((j-1)*2*pi*zz/zlen)/zlen +& | ||
| (j-1)*2*pi*Fcoef2(j)*cos((j-1)*2*pi*zz/zlen)/zlen | ||
| tmpsumpp = tmpsumpp-((j-1)*2*pi/zlen)**2*& | ||
| (Fcoef(j)*cos((j-1)*2*pi*zz/zlen) + & | ||
| Fcoef2(j)*sin((j-1)*2*pi*zz/zlen)) | ||
| tmpsump3 = tmpsump3+((j-1)*2*pi/zlen)**3*& | ||
| (Fcoef(j)*sin((j-1)*2*pi*zz/zlen) - & | ||
| Fcoef2(j)*cos((j-1)*2*pi*zz/zlen)) | ||
| enddo | ||
| !write(8,*)zz,tmpsum,tmpsump,tmpsumpp | ||
| write(8,111)zz,tmpsum,tmpsump,tmpsumpp,tmpsump3 | ||
| enddo | ||
| close(8) | ||
|
|
||
| print*,"input # of data points:" | ||
| read(*,*)nout | ||
| hz = (zdata(ndatareal)-zdata(1))/(nout-1) | ||
| zmid = (zdata(ndatareal)+zdata(1))/2 | ||
| vtmp = 0.0 | ||
|
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| open(8,file="rfdatax2",status="unknown") | ||
|
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| write(8,77)nout,zdata(1),zdata(ndatareal),vtmp | ||
| 77 format(I10,3(1x,e15.7)) | ||
| do i = 1, nout | ||
| zz = (i-1)*hz+zdata(1) - zmid | ||
| tmpsum = 0.5*Fcoef(1) | ||
| tmpsump = 0.0 | ||
| tmpsumpp = 0.0 | ||
| tmpsump3 = 0.0 | ||
| do j = 2,ncoefreal | ||
| tmpsum = tmpsum + Fcoef(j)*cos((j-1)*2*pi*zz/zlen) + & | ||
| Fcoef2(j)*sin((j-1)*2*pi*zz/zlen) | ||
| tmpsump = tmpsump-(j-1)*2*pi*Fcoef(j)*sin((j-1)*2*pi*zz/zlen)/zlen +& | ||
| (j-1)*2*pi*Fcoef2(j)*cos((j-1)*2*pi*zz/zlen)/zlen | ||
| tmpsumpp = tmpsumpp-((j-1)*2*pi/zlen)**2*& | ||
| (Fcoef(j)*cos((j-1)*2*pi*zz/zlen) + & | ||
| Fcoef2(j)*sin((j-1)*2*pi*zz/zlen)) | ||
| tmpsump3 = tmpsump3+((j-1)*2*pi/zlen)**3*& | ||
| (Fcoef(j)*sin((j-1)*2*pi*zz/zlen) - & | ||
| Fcoef2(j)*cos((j-1)*2*pi*zz/zlen)) | ||
| enddo | ||
| write(8,101)tmpsum,tmpsump,tmpsumpp,tmpsump3 | ||
| enddo | ||
| close(8) | ||
|
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||
| 101 format(4(1x,e17.9)) | ||
|
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| 111 format(5(1x,e17.9)) | ||
|
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| dd = 0.0349753333333333 | ||
| print*,"input shift length:" | ||
| read(*,*)dd | ||
| open(9,file="rfdata.tmp",status="unknown") | ||
| do i = 1, ndatareal | ||
| zz = zdata(i) - zmid + dd | ||
| tmpsum = 0.5*Fcoef(1) | ||
| do j = 2,ncoefreal | ||
| tmpsum = tmpsum + Fcoef(j)*cos((j-1)*2*pi*zz/zlen) + & | ||
| Fcoef2(j)*sin((j-1)*2*pi*zz/zlen) | ||
| enddo | ||
| write(9,*)zdata(i),tmpsum | ||
| enddo | ||
| close(9) | ||
|
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||
| stop | ||
| end program rfcoef |
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