Radiant energy – Ionic separation or analysis – Ion beam pulsing means with detector synchronizing means
Patent
1995-05-12
1997-04-15
Berman, Jack I.
Radiant energy
Ionic separation or analysis
Ion beam pulsing means with detector synchronizing means
250281, H01J 4940
Patent
active
056212089
ABSTRACT:
An electrical mobility spectrometer for aerosol particles of an atmosphere to be examined comprises a first (18) and a second (20), spaced, parallel, coaxial conductive disks between which is established an electric field, an annular slot (22) formed in the first disk for communicating with the atmosphere to be examined, a central intake (26) for bringing about a circulation from the periphery of the disks of a centripetal, stable, laminar filtered air flow, an annular slot (28) made in the second disk, a device for varying the selected electrical mobility and an aerosol detector or collector (17).
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patent: 5117190 (1992-05-01), Pourprix
patent: 5455417 (1995-10-01), Sacristan
Transactions of the IEEE on Nuclear Science, vol. NS-19, No. 1, Feb. 1, 1972, pp. 64-74, Raabe, "Instruments And Methods For Characterizing Radioactive Aerosols' Electrostatic Samplers". pp. 66-67.
Aerosol Science and Technology, vol. 13, Oct. 1, 1990, pp. 230-240, Wang et al., "Scanning Electrical Mobility Spectrometer"., p. 232 -p. 235.
Journal of Aerosol Science, vol. 6, Dec. 1, 1975, pp. 443-451, Knutson et al., "Aerosol Classification By Electric Mobility, Etc.".
Review of Scientific Instruments, vol. 51, No. 8, Aug. 1, 1980, pp. 1098-1104, Schowengerth et al., "A Parallel Plate Electrostatic Size Classifier, Etc.".
Berman Jack I.
Commissariat a l''Energie Atomique
Nguyen Kiet T.
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