29-dec-11 23:15:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 126 hours . Total airflow this filter = 36.95 cubic meters . Mean BC concentration of all lamps = 37 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .477 sen(zero) = 0.021 . ref(beam) = 2.212 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 33 ng/m3 --- The reference beam showed lamp intensity fluctuations of 41 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .888 sen(zero) = 0.021 . ref(beam) = 2.420 ref(zero) = 0.021 . Optical attenuation of filter deposit = 83 . Total aerosol black carbon on filter = 1341 ng Mean aerosol black carbon concentration = 36 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .641 sen(zero) = 0.021 . ref(beam) = 2.467 ref(zero) = 0.021 . Optical attenuation of filter deposit = 74 . Total aerosol black carbon on filter = 1333 ng Mean aerosol black carbon concentration = 36 ng/m3 --- The reference beam showed lamp intensity fluctuations of 30 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .942 sen(zero) = 0.021 . ref(beam) = 1.245 ref(zero) = 0.021 . Optical attenuation of filter deposit = 67 . Total aerosol black carbon on filter = 1367 ng Mean aerosol black carbon concentration = 37 ng/m3 --- The reference beam showed lamp intensity fluctuations of 115 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.265 sen(zero) = 0.021 . ref(beam) = 2.426 ref(zero) = 0.021 . Optical attenuation of filter deposit = 62 . Total aerosol black carbon on filter = 1411 ng Mean aerosol black carbon concentration = 38 ng/m3 --- The reference beam showed lamp intensity fluctuations of 71 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.393 sen(zero) = 0.021 . ref(beam) = 3.543 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1473 ng Mean aerosol black carbon concentration = 39 ng/m3 --- The reference beam showed lamp intensity fluctuations of 79 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.140 sen(zero) = 0.021 . ref(beam) = 4.610 ref(zero) = 0.021 . Optical attenuation of filter deposit = 44 . Total aerosol black carbon on filter = 1435 ng Mean aerosol black carbon concentration = 38 ng/m3 --- The reference beam showed lamp intensity fluctuations of 77 ppm. --- Disk space = 1.484749E+07 bytes free: One entry at every 5 minutes. There is space for 3156 hours ( 132 days) more data --- 29-dec-11 23:15:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 29-dec-11 23:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.284 ref(beam) = 2.201 . Lamp 2 (470 nm): sen(beam) = 2.092 ref(beam) = 2.414 . Lamp 3 (520 nm): sen(beam) = 1.374 ref(beam) = 2.488 . Lamp 4 (590 nm): sen(beam) = 1.859 ref(beam) = 1.243 . Lamp 5 (660 nm): sen(beam) = 2.424 ref(beam) = 2.411 . Lamp 6 (880 nm): sen(beam) = 2.305 ref(beam) = 3.555 . Lamp 7 (950 nm): sen(beam) = 1.799 ref(beam) = 4.582 ---