Closed inductively coupled plasma cell

Patent · Tue Nov 06 00:00:00 EST 1990

OSTI ID:7271889

Manning, T J; Palmer, B A; Hof, D E

A closed inductively coupled plasma cell generates a relatively high power, low noise plasma for use in spectroscopic studies is disclosed. A variety of gases can be selected to form the plasma to minimize spectroscopic interference and to provide a electron density and temperature range for the sample to be analyzed. Grounded conductors are placed at the tube ends and axially displaced from the inductive coil, whereby the resulting electromagnetic field acts to elongate the plasma in the tube. Sample materials can be injected in the plasma to be excited for spectroscopy. 1 fig.

• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 4968142; A
• Application Number: PPN: US 7-360559
• OSTI ID: 7271889
• Resource Relation: Patent File Date: 2 Jun 1989
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PLASMA PRODUCTION
ELECTRIC CONDUCTORS
ELECTRON DENSITY
ELECTRON TEMPERATURE
EQUIPMENT
SPECTROSCOPY
661300* - Other Aspects of Physical Science- (1992-)