! *** OPTICS=LCLS2sc26FEB16 *** ! LCLS2sc bunch compressor chicane #2 ! ============================================================================== ! Modification History ! ------------------------------------------------------------------------------ ! 23-FEB-2016, M. Woodley ! * push extra drift from L2 d/s PSC into D2C00 (DPSC2d[L]+D2C00[L]=constant) ! * per F. Carillo: move XC2C00 u/s 11 cm, BZ21B d/s 18 cm, XCC210 u/s 14 cm ! ------------------------------------------------------------------------------ ! 01-OCT-2015, M. Woodley ! * fix negative D2C00a drift length error by shortening DPSC2D drift; set ! D2C00a length to zero ! * undefer CEBC2 ! * change TYPE of OTRs and YAGs per Henrik's PRD ! ------------------------------------------------------------------------------ ! 19-JUN-2015, M. Woodley ! * device locations per F. Carrillo ! * undefer BPM21 and OTR21B ! * defer collimators CYC21, CXC21, CYC23, and CXC23 ! * undefer WSC202, WSC204, WSC206, and WSC208 ! * collimator gaps per P. Emma ! ------------------------------------------------------------------------------ ! 20-MAR-2015, M. Woodley ! * device locations per F. Carillo ! * set WS21 deferment to level 3; set OTR21B deferment to level 0 ! * set collimator lengths (tungsten) and gaps per LCLSII-2.4-PR-0095-R0 ! ------------------------------------------------------------------------------ ! 12-DEC-2014, M. Woodley ! * change RFB21 (defer=2) to BPM21 (defer=0) ! ------------------------------------------------------------------------------ ! 28-OCT-2014, M. Woodley ! * move COL2 collimators 7 inches closer to their associated quadrupoles ! ------------------------------------------------------------------------------ ! 15-OCT-2014, M. Woodley ! * increase central drift of BC1 chicane from 1.0926 m to 1.75 m; add OTR21B ! * remove 0.6574 m (1.75 m - 1.0926 m) from COL2 to keep L1-L2 separation ! constant ! * add 6 stripline BPMs to COL2 ... omitted when we switched to 45 degree ! FODO cells ! * adjust deferment/deprecation levels ! ------------------------------------------------------------------------------ ! 07-AUG-2014, M. Woodley ! * diagnostics complement per "Electron Beam Diagnostics Systems" PRD ! (LCLSII-2.7-PR-0170) ! * change bending direction in BC2 chicane ... toward the aisle ! * OTR in BC2 chicane replaced with wire scanner; BPM replaced with RF BPM ! * COL2 collimation system now consists of four 45 degree FODO cells with 3 ! pairs of collimators separated by 45 degrees (22 m betas at collimators); ! FODO cell length is 12 m ! * TCAV(Y) added d/s of BC2 ! * in-line emittance measurement system incorporated into COL2 ! * decorate device TYPE attributes to indicate non-baseline status ! 17-APR-2014, M. Woodley ! * add "CNT" MARKERs after dispersive areas (ELEGANT CENTERing) ! ------------------------------------------------------------------------------ ! 28-MAR-2014, M. Woodley ! * remove elements associated with now-defunct DIAG2 diagnostic line ! * element names changed to conform to nomenclature PRD ! ------------------------------------------------------------------------------ ! 14-JAN-2014, M. Woodley ! * change BC2 dipole names from "BX2*" to "BXC2*" ! ------------------------------------------------------------------------------ ! ============================================================================== ! LCAV ! ------------------------------------------------------------------------------ ! X-band transverse deflecting cavity TCYC2h : LCAV, TYPE="@2,TRANS_YDEF", FREQ=11424, L=1.0/2 !Y-deflector (split) ! ============================================================================== ! SBEN ! ------------------------------------------------------------------------------ ! BC2 chicane ! - approximate on-axis effective length per R. Carr (01-AUG-05 PE) ! - use series approximation for sinc(x)=sin(x)/x to allow BXh=0 ! GB2 : 1D19.7 gap height (m) ! ZB2 : 1D19.7 "Z" length (m) ! BB2 : chicane bend field (kG) for R56= 0.06 m @ 1.6 GeV ! AB2 : chicane bend angle (rad) ! LB2 : chicane bend path length (m) ! AB2S : "short" half chicane bend angle (rad) ! LB2S : "short" half chicane bend path length (m) ! AB2L : "long" half chicane bend angle (rad) ! LB2L : "long" half chicane bend path length (m) GB2 := 0.03335 ZB2 := 0.549 BB2 := 4.129159880128 !R56=0.037 ARG2 := ZB2*BB2/Brho2 AB2 := ASIN(ARG2) AB2_2 := AB2*AB2 AB2_4 := AB2_2*AB2_2 AB2_6 := AB2_4*AB2_2 SINCAB2 := 1-AB2_2/6+AB2_4/120-AB2_6/5040 !~sinc(AB2)=sin(AB2)/AB2 LB2 := ZB2/SINCAB2 AB2S := ASIN(ARG2/2) AB2S_2 := AB2S*AB2S AB2S_4 := AB2S_2*AB2S_2 AB2S_6 := AB2S_4*AB2S_2 SINCAB2S := 1-AB2S_2/6+AB2S_4/120-AB2S_6/5040 !~sinc(AB2S)=sin(AB2S)/AB2S LB2S := ZB2/(2*SINCAB2S) AB2L := AB2-AB2S LB2L := LB2-LB2S BCX21A : SBEN, TYPE="1D19.7", L=LB2S, ANGLE=+AB2S, HGAP=GB2/2, & E1=0, FINT=0.633, FINTX=0 BCX21B : SBEN, TYPE="1D19.7", L=LB2L, ANGLE=+AB2L, HGAP=GB2/2, & FINT=0, E2=+AB2, FINTX=0.633 BCX22A : SBEN, TYPE="1D19.7", L=LB2L, ANGLE=-AB2L, HGAP=GB2/2, & E1=-AB2, FINT=0.633, FINTX=0 BCX22B : SBEN, TYPE="1D19.7", L=LB2S, ANGLE=-AB2S, HGAP=GB2/2, & FINT=0, E2=0, FINTX=0.633 BCX23A : SBEN, TYPE="1D19.7", L=LB2S, ANGLE=-AB2S, HGAP=GB2/2, & E1=0, FINT=0.633, FINTX=0 BCX23B : SBEN, TYPE="1D19.7", L=LB2L, ANGLE=-AB2L, HGAP=GB2/2, & FINT=0, E2=-AB2, FINTX=0.633 BCX24A : SBEN, TYPE="1D19.7", L=LB2L, ANGLE=+AB2L, HGAP=GB2/2, & E1=+AB2, FINT=0.633, FINTX=0 BCX24B : SBEN, TYPE="1D19.7", L=LB2S, ANGLE=+AB2S, HGAP=GB2/2, & FINT=0, E2=0, FINTX=0.633 ! ============================================================================== ! QUAD ! ------------------------------------------------------------------------------ ! L2 to BC2 chicane KQ2C01 := 0.446526066236 Q2C01 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQ2C01 ! BC2 chicane KCQ21 := 0 KCQ22 := 0 CQ21B : QUAD, TYPE="2.362Q3.5", L=LQc/2, APER=rQc, K1=KCQ21 CQ22B : QUAD, TYPE="2.362Q3.5", L=LQc/2, APER=rQc, K1=KCQ22 ! collimation FODO KQColl2 := 1.188274110968 !45 degree FODO ! BminColl2 := 10.488222785551 ! BmaxColl2 := 23.437946721496 QFColl2 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1= KQColl2 QDColl2 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=-KQColl2 ! COL2 collimation section KQC201 := -0.777366777132 KQC202 := 1.0645708114 KQC203 := -1.269376038838 !-KQColl2 KQC204 := KQColl2 KQC205 := -KQColl2 KQC206 := KQColl2 KQC207 := -KQColl2 KQC208 := KQColl2 KQC209 := -1.586346766871 KQC210 := 1.112870178695 QC201 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC201 QC202 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC202 QC203 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC203 QC204 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC204 QC205 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC205 QC206 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC206 QC207 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC207 QC208 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC208 QC209 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC209 QC210 : QUAD, TYPE="1.259Q3.5", L=LQx/2, APER=rQx, K1=KQC210 ! ============================================================================== ! DRIF ! ------------------------------------------------------------------------------ ! L2 to BC2 chicane D2C00 : DRIF, L=1.150310011609 D2C01 : DRIF, L=0.5 D2C00b : DRIF, L=0.4 D2C00c : DRIF, L=0.26 D2C00a : DRIF, L=D2C00[L]-D2C00b[L]-D2C00c[L] D2C01a : DRIF, L=0.133 D2C01b : DRIF, L=D2C01[L]-D2C01a[L] ! BC2 chicane ZDC2o := 10.4092-ZB2 !BXC21 exit to BCX22 entrance ZDC2i := 2.299-ZB2 !BXC22 exit to BCX23 entrance DC2o : DRIF, L=ZDC2o/COS(AB2), TYPE="CSR" DC2i : DRIF, L=ZDC2i, TYPE="CSR" ZDC2oa := 2.009462 !BXC21 exit to CQ21B center ZDC2ob := ZDC2o-ZDC2oa !CQ21B center to BCX22 entrance ZDC2od := 2.009462 !CQ22B center to BXC24 entrance ZDC2oc := ZDC2o-ZDC2od !BXC23 exit to CQ22B center DC2oa : DRIF, L=ZDC2oa/COS(AB2)-LQc/2, TYPE="CSR" DC2ob : DRIF, L=ZDC2ob/COS(AB2)-LQc/2, TYPE="CSR" DC2ia : DRIF, L=0.3795, TYPE="CSR" !0.35 DC2ib : DRIF, L=0.165-Ljaw/2, TYPE="CSR" !0.35 DC2ic : DRIF, L=0.183-Ljaw/2, TYPE="CSR" !0.35 DC2id : DRIF, L=0.598, TYPE="CSR" !0.35 DC2ie : DRIF, L=0.4245, TYPE="CSR" !0.35 DC2oc : DRIF, L=ZDC2oc/COS(AB2)-LQc/2, TYPE="CSR" DC2od : DRIF, L=ZDC2od/COS(AB2)-LQc/2, TYPE="CSR" ! collimation FODO DColl2 : DRIF, L=5.892 DColl2a : DRIF, L=0.2 DColl2c : DRIF, L=0.3 DColl2e : DRIF, L=0.7-Ljaw/2-LQx/2 !0.325 DColl2b : DRIF, L=DColl2[L]/2-DColl2a[L]-DColl2c[L] DColl2d : DRIF, L=DColl2[L]/2-Ljaw-DColl2e[L] DColl2f : DRIF, L=DColl2[L]-DColl2a[L]-Ljaw-DColl2e[L] DColl2g : DRIF, L=DColl2[L]/2 DColl2i : DRIF, L=0.33965 DColl2h : DRIF, L=DColl2[L]-DColl2a[L]-DColl2i[L] ! COL2 collimation section DC200 : DRIF, L=1.104348-LQx/2 DC201 : DRIF, L=11.586536838792 DC202 : DRIF, L=17.875112799791 DC200a : DRIF, L=0.764348 DC200b : DRIF, L=DC200[L]-DC200a[L] DC201a : DRIF, L=0.304-LQx/2 DC201b : DRIF, L=0.3 DC201c : DRIF, L=0.4 DC201d : DRIF, L=3.0 DC201e : DRIF, L=DC201[L]-DC201a[L]-DC201b[L]-DC201c[L]-DC201d[L]-2*TCYC2h[L] DC202a : DRIF, L=DColl2a[L] DC202c : DRIF, L=DColl2c[L] DC202d : DRIF, L=DColl2d[L] DC202e : DRIF, L=DColl2e[L] DC202b : DRIF, L=DC202[L]-DC202a[L]-DC202c[L]-DC202d[L]-Ljaw-DC202e[L] ! ============================================================================== ! BPMs ! ------------------------------------------------------------------------------ BPM2C01 : MONI, TYPE="Stripline-1" BPMC201 : MONI, TYPE="Stripline-1" BPMC202 : MONI, TYPE="Stripline-1" BPMC203 : MONI, TYPE="Stripline-1" BPMC204 : MONI, TYPE="Stripline-1" BPMC205 : MONI, TYPE="Stripline-1" BPMC206 : MONI, TYPE="Stripline-1" BPMC207 : MONI, TYPE="Stripline-1" BPMC208 : MONI, TYPE="Stripline-1" BPMC209 : MONI, TYPE="Stripline-1" BPMC210 : MONI, TYPE="Stripline-1" RFB2C01 : MONI, TYPE="@2,CavityS-1" BPM21 : MONI, TYPE="Stripline-8" !RFB21 : MONI, TYPE="@2,CavityL-1" RFBC202 : MONI, TYPE="@2,CavityS-1" RFBC204 : MONI, TYPE="@2,CavityS-1" RFBC206 : MONI, TYPE="@2,CavityS-1" RFBC208 : MONI, TYPE="@2,CavityS-1" ! ============================================================================== ! XCORs ! ------------------------------------------------------------------------------ XC2C00 : HKIC, TYPE="class-4" XCC201 : HKIC, TYPE="class-4" XCC202 : HKIC, TYPE="class-4" XCC204 : HKIC, TYPE="@3,class-4" XCC206 : HKIC, TYPE="class-4" XCC208 : HKIC, TYPE="@3,class-4" XCC210 : HKIC, TYPE="class-4" ! ============================================================================== ! YCORs ! ------------------------------------------------------------------------------ YC2C00 : VKIC, TYPE="class-4" YCC201 : VKIC, TYPE="class-4" YCC203 : VKIC, TYPE="class-4" YCC205 : VKIC, TYPE="class-4" YCC207 : VKIC, TYPE="@3,class-4" YCC209 : VKIC, TYPE="class-4" ! ============================================================================== ! marker points, etc. ! ------------------------------------------------------------------------------ ! collimators ! (betatron X/Y half-gaps are 29/19 sigma for 1 um normalized emittance) CEBC2 : RCOL, L=Ljaw, XSIZE=13.3e-3, TYPE="HCOLL" !X momentum collimator CYC21 : RCOL, L=Ljaw, YSIZE=1.3e-3, TYPE="@4,VCOLL" !Y betatron collimator CXC21 : RCOL, L=Ljaw, XSIZE=1.3e-3, TYPE="@4,HCOLL" !X betatron collimator CYC22 : RCOL, L=Ljaw, YSIZE=1.3e-3, TYPE="@4,VCOLL" !Y betatron collimator CXC22 : RCOL, L=Ljaw, XSIZE=1.3e-3, TYPE="@4,HCOLL" !X betatron collimator CYC23 : RCOL, L=Ljaw, YSIZE=1.3e-3, TYPE="@4,VCOLL" !Y betatron collimator CXC23 : RCOL, L=Ljaw, XSIZE=1.3e-3, TYPE="@4,HCOLL" !X betatron collimator ! instruments OTR21B : PROF, TYPE="OTR BC" !BC2 energy spread WS21 : WIRE, TYPE="@3,fast" !BC2 energy spread BZ21B : BLMO, TYPE="CSR" !CSR-based relative bunch length monitor IM21B : IMON, TYPE="ICT" !Beam Current Monitor WSC202 : WIRE, TYPE="fast" !post-BC2 emittance WSC204 : WIRE, TYPE="fast" !post-BC2 emittance WSC206 : WIRE, TYPE="fast" !post-BC2 emittance WSC208 : WIRE, TYPE="fast" !post-BC2 emittance ! markers BC2cBEG : MARK CNTBC2 : MARK, TYPE="CENTER" BC2cEND : MARK ! ============================================================================== ! BEAMLINE ! ------------------------------------------------------------------------------ TCYC2 : LINE=(TCYC2h,TCYC2h) BC2i0 : LINE=(D2C00,Q2C01,Q2C01,D2C01) BC2i : LINE=(& D2C00a,XC2C00,D2C00b,YC2C00,D2C00c,& Q2C01,BPM2C01,Q2C01,D2C01a,RFB2C01,D2C01b) BC2c0 : LINE=(BC2cBEG,& BCX21A,BCX21B,DC2o,& BCX22A,BCX22B,DC2i,& BCX23A,BCX23B,DC2o,& BCX24A,BCX24B,BC2cEND) BC2c : LINE=(BC2cBEG,& BCX21A,BCX21B,DC2oa,CQ21B,CQ21B,DC2ob,& BCX22A,BCX22B,DC2ia,BPM21,DC2ib,CEBC2,DC2ic,OTR21B,DC2id,WS21,DC2ie,& BCX23A,BCX23B,DC2oc,CQ22B,CQ22B,DC2od,& BCX24A,BCX24B,CNTBC2,BC2cEND) BC2 : LINE=(BEGBC2B,BC2i,BC2c,ENDBC2B) COMMENT COL2 : LINE=(BEGCOL2,& DC200,& QC201,QC201,DC201,& QC202,QC202,DC202,& QC203,QC203,DColl2,& QC204,QC204,DColl2,& QC205,QC205,DColl2,& QC206,QC206,DColl2,& QC207,QC207,DColl2,& QC208,QC208,DColl2,& QC209,QC209,DColl2,& QC210,QC210,& ENDCOL2) ENDCOMMENT !COMMENT COL2 : LINE=(& BEGCOL2,& DC200a,BZ21B,DC200b,& QC201,BPMC201,QC201,DC201a,XCC201,DC201b,& YCC201,DC201c,IM21B,DC201d,TCYC2,DC201e,& QC202,BPMC202,QC202,DC202a,XCC202,DC202b,RFBC202,DC202c,WSC202,& DC202d,CYC21,DC202e,& QC203,BPMC203,QC203,DColl2a,YCC203,DColl2f,CXC21,DColl2e,& QC204,BPMC204,QC204,DColl2a,XCC204,DColl2b,RFBC204,DColl2c,WSC204,& DColl2d,CYC22,DColl2e,& QC205,BPMC205,QC205,DColl2a,YCC205,DColl2f,CXC22,DColl2e,& QC206,BPMC206,QC206,DColl2a,XCC206,DColl2b,RFBC206,DColl2c,WSC206,& DColl2d,CYC23,DColl2e,& QC207,BPMC207,QC207,DColl2a,YCC207,DColl2f,CXC23,DColl2e,& QC208,BPMC208,QC208,DColl2a,XCC208,DColl2b,RFBC208,DColl2c,WSC208,& DColl2g,& QC209,BPMC209,QC209,DColl2a,YCC209,DColl2h,XCC210,DColl2i,& QC210,BPMC210,QC210,& ENDCOL2) !ENDCOMMENT C2fodo : LINE=(QFColl2,DColl2,QDColl2,QDColl2,DColl2,QFColl2) ! ------------------------------------------------------------------------------ RETURN