; modified for e99-118 NucR ; ; This is the target parameter file. Numbers 1-9 are solid targets, ; and 11-16 will always be the cryotargets(H 4.5cm and 12.4cm, He 4cm and 15 cm, ; and D 4.4 cm and 12.4cm). Some of the solid targets don't exist any more (one ; of the Fe, the C_sl and Au_6%, the dummy-15) ;The target order is: ; ; Au_3% Cu_2% Cu_3% ; C_1% C_3% BeO ; C_0.5% (z=0) ---- ---- ; ; dummy-15 ; H 4.5cm H 12.4cm ; He 4cm He 15cm ; LD2 4.4cm LD2 12.4cm ; dummy-4 ; quintar(all layers) ; quintar z=0cm, z=+6cm, z=+3cm, z=-3cm, z=-6cm ; ; non-existant targets have A=Z=M=...=0 ; empty/dummy cells have A=Z=M=...= SAME AS DEUTERIUM. ; ; As of now (7/13/96) the values for the BeO are guesses gtarg_z = 79.0 , 29.0 , 29.0 6.0 , 6.0 , 12.0 6.0 , 0.0 , 0.0 13.0 1.0 , 1.0 1.0 , 1.0 1.0 , 1.0 13.0 8.8 ;this is averaged z: 2x Al, 3x C 6.0 , 6.0 , 13.0 , 13.0 , 6.0 gtarg_a = 197.0 , 64.0 , 64.0 12.0 , 12.0 , 25.0 12.0 , 0.0 , 0.0 27.0 1.0 , 1.0 2.0 , 2.0 2.0 , 2.0 27.0 18.0 ;this is averaged z: 2x Al, 3x C 12.0 , 12.0 , 27.0 , 27.0 , 12.0 gtarg_mass = 196.96655 , 63.546 , 63.546 12.0107 , 12.0107 , 25.0 12.0107 , 0.0 , 0.0 26.98 1.00727647 , 1.00727647 1.876 , 1.876 2.01355322 , 2.01355322 26.98 17.9986 ;this is averaged z: 2x Al, 3x C 12.011 , 12.011 , 26.98 , 26.98 , 12.011 ; Next is the radiation length in percent... gtarg_lrad = 3.72 , 1.81 , 2.69 1.06 , 2.92 , 1.0 0.50 , 0.0 , 0.0 2.2472 0.48 , 1.43353 0.528 , 1.982 0.56 , 1.63804 2.11 3.8429 ;added the radiation lengths of all five layers 0.53191 , 0.53191, 1.1236 , 1.1236 , 0.53191 ; Next is the thickness of the target in g/cm^2... gtarg_thick = 0.240 , 0.233 , 0.346 0.452 , 1.2454 , 0.2 0.227 , 0.0 , 0.0 0.529 0.295 , 0.9016 0.648 , 2.430 0.681 , 2.0808 0.507 1.215 0.225 , 0.225 , 0.27 , 0.27 , 0.225 ; Finally, the density of the target in g/cm^3. These are estimates based ; on the nominal thickness (cm) of the targets which can be off by ~5% ... gtarg_dens = 19.3 , 8.96 , 8.96 2.18 , 2.18 , 2.0 2.0 , 0.0 , 0.0 2.7 0.0723 , 0.0723 0.167 , 0.167 0.167 , 0.167 2.68 2.7 2.25 , 2.25 , 2.7 , 2.7 , 2.25 ; Target angle: =90 deg. is perpendicluar to beam ; <90 deg. is face towards HMS ; >90 deg. is face towards SOS ; for E99118 target was rotated 20.3deg. to face HMS =>69.7deg. = 1.2164945rad gtarg_theta = 1.5707936 ;general target energy loss parameters. Vansyoc Mar.98 ;target cell**************** gcell_radius = 2.009 gz_cell = 13.0 ga_cell = 27.0 gcell_den = 2.70 ; gwall_thk = 0.03429 ; gend_thk = 0.03429 ; gfront_thk = 0.020574 gwall_thk = 0.0341 gend_thk = 0.0341 gfront_thk = 0.0341 ;Air cap between the chamber and the entrance window gair_dens = 0.00121 gair_thk = 0.018 gair_a = 14.68 gair _z = 7.32 ;HMS******** ; HMS scattering chamber window specs.********** hscat_win_thk = 0.109728 hscat_win_den = 2.70 hscat_win_z = 13.0 hscat_win_a = 27.0 ; HMS entrance window specs.******************** hdet_ent_thk = 0.049098 hdet_ent_den = 0.878636 hdet_ent_z = 2.67 hdet_ent_a = 4.67 ;SOS******** ; SOS scattering chamber window specs.********** sscat_win_thk = 0.054864 sscat_win_den = 2.70 sscat_win_z = 13.0 sscat_win_a = 27.0 ; SOS entrance window specs.******************** sdet_ent_thk = 0.016421 sdet_ent_den = 0.862 sdet_ent_z = 2.67 sdet_ent_a = 4.67 ;eloss debug 0 = off,1 = on ; gelossdebug = 0 ;use old cryo geometry? (1) ; old_tgeom = 1 ;