Systems and methods for Thomson scattering background interference suppression
AssigneeThe Texas A&M University System
InventorsRichard B. Miles, Christopher Limbach, Alexandros Gerakis
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Abstract
An apparatus for measurement of Thomson scattering signals from a plasma includes a light emitting device, configured to emit a light beam into the plasma, along an axis. In addition, the apparatus includes a collector configured to collect the Thomson scattering from the plasma at an angle less than 90 degrees from the axis of the light beam. Further, the apparatus includes a sensor assembly to detect the Thomson scattering.
Claims23
An apparatus for measurement of Thomson scattering signals from a plasma, the apparatus comprising:
- a light emitting device, configured to emit a light beam into the plasma along as axis, where at least a portion of the light beam is scattered by the plasma;
- a light collector comprising a collection surface situated at an angle relative to the axis and configured to collect the Thomson scattering from the plasma, wherein the Thomson scattering diverges from the axis of the light beam as the Thomson scattering contacts the light collector at a collection angle less than 90 degrees from the axis of the light beam whereby a spectral linewidth of the Thomson scattering is decreased;
- and
- a sensor assembly to detect the Thomson scattering.
A method for measuring Thomson scattering signals from a plasma, the method comprising:
- emitting a light beam into the plasma along an axis whereby at least a portion of the light beam is scattered by the plasma;
- collecting the Thomson scattering from the plasma at a collection angle less than 90° from the axis of the light beam as the Thomson scattering diverges from the axis of the light beam, whereby a spectral linewidth of the Thomson scattering is decreased;
- and
- detecting the collected Thompson scattering with a sensor assembly.
Dependencies are inferred from the claim text.