22-mar-10 01:45:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 73.99 hours . Total airflow this filter = 21.74 cubic meters . Mean BC concentration of all lamps = 65 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .525 sen(zero) = 0.021 . ref(beam) = 2.246 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1253 ng Mean aerosol black carbon concentration = 57 ng/m3 --- The reference beam showed lamp intensity fluctuations of 45 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .866 sen(zero) = 0.021 . ref(beam) = 2.202 ref(zero) = 0.021 . Optical attenuation of filter deposit = 85 . Total aerosol black carbon on filter = 1368 ng Mean aerosol black carbon concentration = 63 ng/m3 --- The reference beam showed lamp intensity fluctuations of 33 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .682 sen(zero) = 0.021 . ref(beam) = 2.495 ref(zero) = 0.021 . Optical attenuation of filter deposit = 76 . Total aerosol black carbon on filter = 1368 ng Mean aerosol black carbon concentration = 63 ng/m3 --- The reference beam showed lamp intensity fluctuations of 31 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = .939 sen(zero) = 0.021 . ref(beam) = 1.213 ref(zero) = 0.021 . Optical attenuation of filter deposit = 69 . Total aerosol black carbon on filter = 1411 ng Mean aerosol black carbon concentration = 64 ng/m3 --- The reference beam showed lamp intensity fluctuations of 117 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.546 sen(zero) = 0.021 . ref(beam) = 2.831 ref(zero) = 0.021 . Optical attenuation of filter deposit = 65 . Total aerosol black carbon on filter = 1477 ng Mean aerosol black carbon concentration = 68 ng/m3 --- The reference beam showed lamp intensity fluctuations of 75 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.424 sen(zero) = 0.021 . ref(beam) = 3.549 ref(zero) = 0.021 . Optical attenuation of filter deposit = 51 . Total aerosol black carbon on filter = 1560 ng Mean aerosol black carbon concentration = 71 ng/m3 --- The reference beam showed lamp intensity fluctuations of 83 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.176 sen(zero) = 0.021 . ref(beam) = 4.610 ref(zero) = 0.021 . Optical attenuation of filter deposit = 47 . Total aerosol black carbon on filter = 1537 ng Mean aerosol black carbon concentration = 70 ng/m3 --- The reference beam showed lamp intensity fluctuations of 82 ppm. --- Disk space = 3.189299E+07 bytes free: One entry at every 5 minutes. There is space for 6780 hours ( 282 days) more data --- 22-mar-10 01:45:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 22-mar-10 01:59:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.321 ref(beam) = 2.231 . Lamp 2 (470 nm): sen(beam) = 1.937 ref(beam) = 2.189 . Lamp 3 (520 nm): sen(beam) = 1.415 ref(beam) = 2.488 . Lamp 4 (590 nm): sen(beam) = 1.840 ref(beam) = 1.198 . Lamp 5 (660 nm): sen(beam) = 2.872 ref(beam) = 2.810 . Lamp 6 (880 nm): sen(beam) = 2.350 ref(beam) = 3.512 . Lamp 7 (950 nm): sen(beam) = 1.834 ref(beam) = 4.579 ---