31-mar-12 00:45:13 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 6.66 hours . Total airflow this filter = 1.95 cubic meters . Mean BC concentration of all lamps = 73 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .221 sen(zero) = 0.021 . ref(beam) = 2.230 ref(zero) = 0.021 . Optical attenuation of filter deposit = 8 . Total aerosol black carbon on filter = 112 ng Mean aerosol black carbon concentration = 58 ng/m3 --- The reference beam showed lamp intensity fluctuations of 64 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .381 sen(zero) = 0.021 . ref(beam) = 2.440 ref(zero) = 0.021 . Optical attenuation of filter deposit = 8 . Total aerosol black carbon on filter = 130 ng Mean aerosol black carbon concentration = 67 ng/m3 --- The reference beam showed lamp intensity fluctuations of 53 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .296 sen(zero) = 0.021 . ref(beam) = 2.476 ref(zero) = 0.021 . Optical attenuation of filter deposit = 7 . Total aerosol black carbon on filter = 135 ng Mean aerosol black carbon concentration = 70 ng/m3 --- The reference beam showed lamp intensity fluctuations of 49 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .403 sen(zero) = 0.021 . ref(beam) = 1.242 ref(zero) = 0.021 . Optical attenuation of filter deposit = 7 . Total aerosol black carbon on filter = 148 ng Mean aerosol black carbon concentration = 76 ng/m3 --- The reference beam showed lamp intensity fluctuations of 222 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = .517 sen(zero) = 0.021 . ref(beam) = 2.430 ref(zero) = 0.021 . Optical attenuation of filter deposit = 6 . Total aerosol black carbon on filter = 149 ng Mean aerosol black carbon concentration = 77 ng/m3 --- The reference beam showed lamp intensity fluctuations of 125 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = .726 sen(zero) = 0.021 . ref(beam) = 3.547 ref(zero) = 0.021 . Optical attenuation of filter deposit = 5 . Total aerosol black carbon on filter = 165 ng Mean aerosol black carbon concentration = 85 ng/m3 --- The reference beam showed lamp intensity fluctuations of 139 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = .596 sen(zero) = 0.021 . ref(beam) = 4.626 ref(zero) = 0.021 . Optical attenuation of filter deposit = 4 . Total aerosol black carbon on filter = 158 ng Mean aerosol black carbon concentration = 82 ng/m3 --- The reference beam showed lamp intensity fluctuations of 127 ppm. --- Disk space = 2.77975E+07 bytes free: One entry at every 5 minutes. There is space for 5909 hours ( 246 days) more data --- Disk space = 2.776269E+07 bytes free: One entry at every 5 minutes. There is space for 5902 hours ( 246 days) more data --- 31-mar-12 00:46:45 Tape feeder mechanism advancing for 1 spot(s). --- 31-mar-12 00:51:00 ============================================================= Automatic re-start ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 31-mar-12 00:59:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = .441 ref(beam) = 2.215 . Lamp 2 (470 nm): sen(beam) = .752 ref(beam) = 2.428 . Lamp 3 (520 nm): sen(beam) = .522 ref(beam) = 2.474 . Lamp 4 (590 nm): sen(beam) = .726 ref(beam) = 1.228 . Lamp 5 (660 nm): sen(beam) = .897 ref(beam) = 2.412 . Lamp 6 (880 nm): sen(beam) = 1.133 ref(beam) = 3.536 . Lamp 7 (950 nm): sen(beam) = .886 ref(beam) = 4.588 ---