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