Magnetic sector mass spectrometer

Details Magnetic sector mass spectrometer Magnetic sector mass spectrometer

1986-05-15

1988-02-23

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250298, B01D 5944

Patent

active

047272490

ABSTRACT:
The invention relates to a mass spectrometer having a magnetic sector analyzer in which the magnetic field is developed neither by a permanent magnet nor by an electromagnet having the conventional ferromagnetic core. In particular, the spectrometer has a magnetic sector analyzer through which ions of a mass-to-charge ratio selected by said analyzer may travel along a substantially circular trajectory disposed in a first plane, said analyzer comprising at least two electrical conductor portions of substantially circular arcuate form, respectively of greater and smaller radius than said circular trajectory and disposed on radially opposite sides of a curved plane which is aligned with said circular trajectory and perpendicular to said first plane, and wherein substantially all of the magnetic flux generated by the passage of electrical current through said conductor portions passes only through non-ferromagnetic materials.

REFERENCES:
patent: 3356976 (1967-12-01), Sampson et al.
patent: 4251728 (1981-02-01), Pfeiffer et al.
Fadley, C. S., Healey, R. N., Hollander, J. M., Miner, C. E., J. Appl. Phys., 1972, vol. 43, pp. 1085-1088.
Ken-ichi Kanazawa, Tatsuo Arikawa, Shitsuryo Bunseki, 1982, vol. 30 (4), pp. 281-287.
Enge, H. A., "Deflecting Magnets", in The Focusing of Charged Particles, Ed. A. Septier, Academic Press, New York, 1967, pp. 203-263.

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