! *** OPTICS=LCLS2sc19JUN15 *** ! LCLS2sc safety dump lines ! ============================================================================== ! Modification History ! ------------------------------------------------------------------------------ ! 20-MAY-2015, Y. Nosochkov ! * add PCPM3, PCPM3B, remove BXPM3 (per Shanjie) ! * update aperture of PCPM1,2,3 and PCPM1B,2B,3B (per LCLSII-3.5-PR-0111-R1) ! * update positions of PCPM2, BXPM1, BXPM2 (per Shanjie) ! * move PCPM1, PCPM1B 0.135 m downstream (per A. Ibrahimov) ! ------------------------------------------------------------------------------ ! 12-MAR-2015, Y. Nosochkov ! * add existing XDCXRAY screen in the XDC chamber in HXR ! ------------------------------------------------------------------------------ ! 12-DEC-2014, M. Woodley ! * move area BEG/END MARKers to common.xsif ! * add SEQ BEG/END MARKers ! 09-DEC-2014, Y. Nosochkov ! * safety dump lines based on LCLS-I design and PRD LCLSII-3.5-PR-0111 ! ------------------------------------------------------------------------------ ! ------------------------------------------------------------------------------ ! HXR safety dump ! ------------------------------------------------------------------------------ ! note that axis of BXPM1H,2H bends is parallel to HXR undulator axis but ! horizontally offset by +35 mm towards the North LBPM := 0.944 !effective straight length of permanent magnet FFTB dump bends (m) GBPM0 := 0.0381 !original gap height in FFTB magnets in 2005 (m) GBPM := 0.052 !modified (larger) gap height for LCLS safety dump BBPM0 := 4.3 !original magnetic field (kG) at gap = 3.81 cm BBPM := BBPM0*GBPM0/GBPM !magnetic field (kG) at gap = 5.2 cm RBPM := Brhof/BBPM !bending radius (m) in permanent magnets ABPM := LBPM/(2*RBPM) ABPM1A := ASIN( ABPM) !bending angle of "short" half of BXPM1 ABPM1B := ASIN(2*ABPM)-ASIN( ABPM) !bending angle of "long" half of BXPM1 ABPM2A := ASIN(3*ABPM)-ASIN(2*ABPM) !bending angle of "short" half of BXPM2 ABPM2B := ASIN(4*ABPM)-ASIN(3*ABPM) !bending angle of "long" half of BXPM2 ABPM1 := ABPM1A+ABPM1B ABPM2 := ABPM2A+ABPM2B LBPM1A := RBPM*ABPM1A !path length in "short" half of BXPM1 LBPM1B := RBPM*ABPM1B !path length in "long" half of BXPM1 LBPM2A := RBPM*ABPM2A !path length in "short" half of BXPM2 LBPM2B := RBPM*ABPM2B !path length in "long" half of BXPM2 BXPM1A : SBEN, TYPE="4D36-C", L=LBPM1A, ANGLE=ABPM1A, HGAP=GBPM/2, & FINT=0.5, FINTX=0.0, E2=0, E1=0 BXPM1B : SBEN, TYPE="4D36-C", L=LBPM1B, ANGLE=ABPM1B, HGAP=GBPM/2, & FINT=0.0, FINTX=0.5, E1=0, E2=ABPM1 BXPM2A : SBEN, TYPE="4D36-C", L=LBPM2A, ANGLE=ABPM2A, HGAP=GBPM/2, & FINT=0.5, FINTX=0.0, E2=0, E1=-ABPM1 BXPM2B : SBEN, TYPE="4D36-C", L=LBPM2B, ANGLE=ABPM2B, HGAP=GBPM/2, & FINT=0.0, FINTX=0.5, E1=0, E2=ABPM1+ABPM2 DYDS : DRIFT, L=LBYDS*COS(ABYDS/2) DYD1 : DRIFT, L=LBDM *COS(ABYDS+ ABDM/2) DYD2 : DRIFT, L=LBDM *COS(ABYDS+3*ABDM/2) DYD3 : DRIFT, L=LBDM *COS(ABYDS+5*ABDM/2) DS1S : DRIFT, L=LDS1*COS(ABYDS) DSSA : DRIFT, L=LDS *COS(ABYDS+ ABDM) DSSB : DRIFT, L=LDS *COS(ABYDS+2*ABDM) DSCSA : DRIFT, L=LDSC*COS(ABYDS+3*ABDM)/2 +0.190065 DSCSB : DRIFT, L=LDSC*COS(ABYDS+3*ABDM)/2 -0.190065-0.138768+0.135 ZSFTDMP := 0.0762 !safety dump Z-length DPCBTM1 : DRIFT, L=0.15-0.135 DPCBTM2 : DRIFT, L=0.15 DPM1 : DRIFT, L=0.298 DPM2 : DRIFT, L=0.30/COS(ABPM1) DPM3 : DRIFT, L=8.786/COS(ABPM1+ABPM2) DPCBTM3 : DRIFT, L=0.15/COS(ABPM1+ABPM2) DPM4 : DRIFT, L=2.272/COS(ABPM1+ABPM2) DSFTDMP : DRIFT, L=ZSFTDMP/COS(ABPM1+ABPM2) DXDCu : DRIFT, L=1.092223 XDCa : DRIFT, L=0.312777 !XDC chamber XDCb : DRIFT, L=0.693 !XDC chamber XDCc : DRIFT, L=0.542 !XDC chamber XDCd : DRIFT, L=0.255376 !XDC chamber DXDCd : DRIFT, L=7.266-DXDCu[L]-XDCa[L]-XDCb[L]-XDCc[L]-XDCd[L] PCPM1 : ECOL, L=LPCPM, XSIZE=0.0080, YSIZE=0.0080 !per LCLSII-3.5-PR-0111-R1 PCPM2 : ECOL, L=LPCPM, XSIZE=0.0127, YSIZE=0.0127 PCPM3 : ECOL, L=LPCPM/COS(ABPM1+ABPM2), XSIZE=0.0080, YSIZE=0.0080 BTM1 : INST !Burn-Through-Monitor behind PCPM1 BTM2 : INST !Burn-Through-Monitor behind PCPM2 BTM3 : INST !Burn-Through-Monitor behind PCPM3 BTMSFT : INST !Burn-Through-Monitor behind HXR safety dump YAGXRAY : PROF, TYPE="YAG" !existing safety dump line X-ray screen XDCXRAY : PROF !existing safety dump line X-ray screen SFTDMP : INST !front face of HXR safety dump (Z'=712-715 m per PRD) VV38 : MARK !vac. valve in HXR safety dump line SFTDUMP: LINE=(SEQ18BEG,& BEGSFTH,DYDS,DS1S,DYD1,DSSA,DYD2,DSSB,DYD3,& DSCSA,VV38,DSCSB,PCPM1,DPCBTM1,BTM1,DXDCu,& XDCa,XDCXRAY,XDCb,XDCc,YAGXRAY,XDCd,DXDCd,PCPM2,DPCBTM2,BTM2,DPM1,& BXPM1A,BXPM1B,DPM2,BXPM2A,BXPM2B,DPM3,PCPM3,DPCBTM3,BTM3,DPM4,& SFTDMP,DSFTDMP,BTMSFT,ENDSFTH,& SEQ18END) ! ------------------------------------------------------------------------------ ! SXR safety dump ! ------------------------------------------------------------------------------ ! note that BXPM1b bend axis is aligned with the SXR undulator axis without ! any offset RBPMb := Brhof/BBPM !bending radius (m) in a permanent magnet ABPMb := LBPM/(2*RBPMb) ABPM1bA := ASIN(ABPMb) !bending angle of "short" half of BXPM1b ABPM1bB := ASIN(2*ABPMb)-ASIN(ABPMb) !bending angle of "long" half of BXPM1b LBPM1bA := RBPMb*ABPM1bA !path length in "short" half of BXPM1b LBPM1bB := RBPMb*ABPM1bB !path length in "long" half of BXPM1b BXPM1bA : SBEN, TYPE="4D36-C", L=LBPM1bA, ANGLE=ABPM1bA, HGAP=GBPM/2, & FINT=0.5, FINTX=0.0, E2=0, E1=0 BXPM1bB : SBEN, TYPE="4D36-C", L=LBPM1bB, ANGLE=ABPM1bB, HGAP=GBPM/2, & FINT=0.0, FINTX=0.5, E1=0, E2=ABPM1bA+ABPM1bB DPM1b : DRIFT, L=0.298 DPM2b : DRIFT, L=10.03/COS(ABPM1bA+ABPM1bB) DPCBTM3b : DRIFT, L=0.15/COS(ABPM1bA+ABPM1bB) DPM3b : DRIFT, L=2.272/COS(ABPM1bA+ABPM1bB) DSFTDMPb : DRIFT, L=ZSFTDMP/COS(ABPM1bA+ABPM1bB) DXDCbu : DRIFT, L=1.092223 XDCba : DRIFT, L=0.312777 !XDC chamber XDCbb : DRIFT, L=0.693 !XDC chamber XDCbc : DRIFT, L=0.542 !XDC chamber XDCbd : DRIFT, L=0.255376 !XDC chamber DXDCbd : DRIFT, L=7.266-DXDCbu[L]-XDCba[L]-XDCbb[L]-XDCbc[L]-XDCbd[L] PCPM1b : ECOL, L=LPCPM, XSIZE=0.0100, YSIZE=0.0100 !per LCLSII-3.5-PR-0111-R1 PCPM2b : ECOL, L=LPCPM, XSIZE=0.0127, YSIZE=0.0127 PCPM3b : ECOL, L=LPCPM/COS(ABPM1bA+ABPM1bB), XSIZE=0.0100, YSIZE=0.0100 BTM1b : INST !Burn-Through-Monitor behind PCPM1b BTM2b : INST !Burn-Through-Monitor behind PCPM2b BTM3b : INST !Burn-Through-Monitor behind PCPM3b BTMSFTb : INST !Burn-Through-Monitor behind SXR safety dump YAGXRAYb : PROF, TYPE="YAG" !safety dump line X-ray screen SFTDMPb : INST !front face of SXR safety dump (Z'=712-715 m per PRD) VV38b : MARK !vac. valve in SXR safety dump line SFTDUMPb: LINE=(SEQ17BEG,& BEGSFTS,DYDS,DS1S,DYD1,DSSA,DYD2,DSSB,DYD3,& DSCSA,VV38b,DSCSB,PCPM1b,DPCBTM1,BTM1b,DXDCbu,& XDCba,XDCbb,XDCbc,YAGXRAYb,XDCbd,DXDCbd,PCPM2b,DPCBTM2,BTM2b,DPM1b,& BXPM1bA,BXPM1bB,DPM2b,PCPM3b,DPCBTM3b,BTM3b,DPM3b,& SFTDMPb,DSFTDMPb,BTMSFTb,ENDSFTS,& SEQ17END) RETURN