TABLE B-1-10. ANGULAR RESPONSEOF IMP to 2414m SOURCE COUNTS (900 sec) ALONG MAST PROJECTION 3348 2128 1072 569 226 193 HORIZONTAL DISTANCE (em) 0 395 700 1000 1420 1750 NORMAL TO MAST 3308 2027 1109 532 229 203 RELATIVE COUNTS 1.000 0.624 0.328 0.165 0.068 0.060 ANGLE w/DETECTOR AXIS (deg) 0 29.9 44.6 54.6 63.4 67.9 CALCULATED RESPONSE 1.000 0.649 0.356 0.184 0.069 0.040 NOTES: 1. 2. 3. 4. IMP I measurement, Detector 635, 3/15/79. Detector height: 710 cm. Collimator removed (measurements and response calculation different at angles greater than 55 degrees than corresponding values with collimator). Relative counts corrected for measured background of 114 counts in 1800 seconds. TABLE B-1-11. MEASUREMENTS THROUGH BRUSH A. DATA* SOURCE COUNTS(900 see) STAKE W/SOURCE HORIZONTAL NO SOURCE DISTANCE (em) ANGLE W/DETECTOR (DEGREES) Unknown 4-N-2 4-8-6 2319 3226 1775 331 1209 132 300 440 500 22.9 31.8 35.2 4-S-4 1828 281 500 35.2 8-5-2 1867 1588 600 40.2 2-5-4 675 119 600 40.2 6-BL-0 1348 818 950 53.2 BRUSH DESCRIPTION 3 Ft. Seaevola Morning Glories 2 ft. Medium Dense Scaevola 4 ft. Medium Dense Scaevola 8 ft. Medium Dense Seaevola Medium Dense Scaevola with Deadwood 2 ft. Seaevola with Moss * IMP II, detector 635, 3/19-20/1979 B. ANALYSIS STAKE ANGLE RELATIVE COUNT W/BRUSH NO BRUSH** —BCF Unknown 4-N-~-2 4-S-6 4-5-4 8-5-2 22.9 31.8 35.2 35.2 40.2 0.593 0.606 0.494 0.465 0.084 0.737 0.590 0.510 0.510 0.410 1.232 0.974 1.032 1.097 4.88 2-S-4 6-BL-0 40.2 53.2 0.167 0.159 0.410 0.176 2.46 1.107 1.12 **From Figure B-1-3 B-1-13 COMMENTS Discard - Morning glories, not brush Discard - Source and No Source counts too close together Diseard - Not physically believable Discard - Questionable - High sensitivity to detector angle Average of three valid runs