System to reduce the pressure drop in a differential...

Details System to reduce the pressure drop in a differential... System to reduce the pressure drop in a differential...

2009-08-13

2011-12-06

Berman, Jack (Department: 2881)

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

C250S282000

Reexamination Certificate

active

08071940

ABSTRACT:
System to reduce the pressure drop in a Vienna-type differential mobility analyzer (DMA). It is built to favor the flow axilsymmetry, with no restrictions to avoid strong pressure drops and high pumping capacities. It comprises an electrical isolator, a metallic cone to stabilize the flow, all in one instrument covering a size range of 1 to 600 nm. The electrical isolator is capable of a potential difference of up to 14 kV. It can be used to measure ions and particles in the size range already mentioned with resolutions up to 12.

REFERENCES:
patent: 6230572 (2001-05-01), Pui et al.
patent: 6787763 (2004-09-01), De La Mora et al.
patent: 7161143 (2007-01-01), De La Mora et al.
patent: 7261007 (2007-08-01), Haglund et al.
patent: 7626161 (2009-12-01), Labowsky et al.
patent: 2003/0116708 (2003-06-01), De la Mora et al.
patent: 2006/0266132 (2006-11-01), Cheng et al.
patent: 2008/0149824 (2008-06-01), Miller et al.
patent: 2009/0173670 (2009-07-01), Okuda et al.
patent: 2010/0213366 (2010-08-01), Fernandez De La Mora et al.
patent: 9941585 (1999-08-01), None
patent: 2007072942 (2007-06-01), None
Chen et al., Design and Evaluation of a Nanometer Aerosol Differential Mobility Analyzer (Nano-DMA), J. Aerosol Sci. vol. 29, No. 5/6, pp. 497-509, 1998.
Martinez-Lozano, P. and Fernandez de la Mora, J. 2006. “Resolution improvements of a nano-DMA operating transonically.” Journal of Aerosol Science. 37, 500-512.
Rosser, S. et al., Vienna-Type DMA of High Resolution and High Flow Rate, Aerosol Science and Technology, 2005, 39:1191-1200.

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