FORS1 Grism Efficiencies
GRIS_600B+12
nm efficiency 330 0.55 350 0.63 375 0.67 400 0.68 450 0.61 500 0.53 550 0.46 600 0.37 650 0.32 700 0.26
GRIS_600R+14
nm efficiency 425 0.38 450 0.43 475 0.48 500 0.50 550 0.52 600 0.49 650 0.45 700 0.42 750 0.37 800 0.34 850 0.31 900 0.27 950 0.23
GRIS_600V+94
nm efficiency 350 0.15 375 0.33 400 0.44 450 0.57 500 0.62 550 0.60 600 0.55 650 0.51 700 0.46 800 0.37 900 0.29 1000 0.22
GRIS_600I+15
nm efficiency 450 0.28 500 0.43 550 0.54 600 0.57 650 0.56 700 0.55 800 0.47 900 0.41 1000 0.34
GRIS_600z+26
nm efficiency 550 0.37 600 0.44 650 0.48 700 0.49 750 0.48 800 0.47 850 0.45 900 0.43 950 0.41 1000 0.38 1050 0.35 1100 0.31
GRIS_300V+10
nm efficiency 330 0.48 350 0.62 375 0.72 400 0.78 450 0.79 500 0.74 550 0.63 600 0.55 650 0.48 700 0.42 750 0.37 800 0.33 850 0.29 900 0.25
GRIS_300I+11
nm efficiency 500 0.14 550 0.31 600 0.47 650 0.58 700 0.66 750 0.69 800 0.70 850 0.67 900 0.65 950 0.61 1000 0.57 1050 0.53 1100 0.50 1150 0.43
GRIS_150I+17
nm efficiency 340 0.30 360 0.44 375 0.53 400 0.66 450 0.78 500 0.80 550 0.76 600 0.70 650 0.62 700 0.56 800 0.44 900 0.35 1000 0.28 1100 0.22