Generation of combination of RF and axial DC electric fields...

Details Generation of combination of RF and axial DC electric fields... Generation of combination of RF and axial DC electric fields...

2006-06-27

2006-06-27

Wells, Nikita (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S292000, C250S288000, C250S288000, C250S283000, C250S281000

Reexamination Certificate

active

07067802

ABSTRACT:
An RF-only multipole includes a spiral resistive path formed around each multipole rod body. RF voltages are applied to the rod body and resistive path, and DC voltages are applied to the resistive path, to create a radially confining RF field and an axial DC field that assists in propelling ions through the multipole interior along the longitudinal axis thereof. In one implementation, the resistive path takes the form of a wire of resistive material, such as nichrome, which is laid down in the groove defined between threads formed on the rod body. The RF-only multipole of the invention avoids the need to use auxiliary rods or similar supplemental structures to generate the axial DC field.

REFERENCES:
patent: 5464975 (1995-11-01), Kirchner et al.
patent: 5572035 (1996-11-01), Franzen
patent: 5811800 (1998-09-01), Franzen et al.
patent: 5847386 (1998-12-01), Thomson et al.
patent: 6111250 (2000-08-01), Thomson et al.
patent: 6559444 (2003-05-01), Franzen
patent: 6674071 (2004-01-01), Franzen et al.
patent: 6803565 (2004-10-01), Smith et al.
patent: 6891153 (2005-05-01), Bateman et al.
patent: 2001/0054685 (2001-12-01), Franzen
patent: 2002/0027196 (2002-03-01), Shiokawa

Affiliated with

Also associated with

Rating

Generation of combination of RF and axial DC electric fields... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Generation of combination of RF and axial DC electric fields..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generation of combination of RF and axial DC electric fields... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3648743