Title:
PLASMA DIAGNOSTIC SYSTEM USING MULTIPLE RECIPROCATING PATH THOMSON SCATTERING
Document Type and Number:
WIPO Patent Application WO/2017/119552
Kind Code:
A1
Abstract:
The present invention relate to a plasma diagnostic system using multiple reciprocating path Thomson scattering. The plasma diagnostic system comprises: an optical system for sequentially providing a laser beam pulse in a vertical polarization state and a laser beam pulse in a horizontal polarization state to plasma by means of a laser beam pulse provided from a light source; a light focusing system for measuring a first light focus signal scattered from the plasma when the laser beam pulse in a vertical polarization state provided by means of the optical system is focused and for measuring a second light focus signal excited from the plasma when the laser beam pulse in a horizontal polarization state provided by means of the optical system is focused; and a control unit for measuring a Thomson scattered signal with respect to the plasma by means of the first and second light focus signals that have been measured by means of the light focusing system, wherein the first light focus signal is a signal in which the Thomson scattered signal and a background scattered noise signal are mixed and the second light focus signal comprises a background scattered noise signal. A plasma diagnostic system using multiple reciprocating path Thomson scattering, according to the present invention, enables an accurate measurement of a Thomson scattered signal, having a background scattered noise signal removed, by means of sequentially providing a laser beam pulse in a vertical polarization state and a laser beam pulse in a horizontal polarization state into a plasma and measuring signals scattered from the plasma.
Inventors:
CHO KYU MAN (KR)
PARK JUNE KYU (KR)
YOON SEUNG HYUN (KR)
AHN WHA-KEUN (KR)
PARK JUNE KYU (KR)
YOON SEUNG HYUN (KR)
AHN WHA-KEUN (KR)
Application Number:
PCT/KR2016/003953
Publication Date:
July 13, 2017
Filing Date:
April 15, 2016
Export Citation:
Assignee:
INDUSTRY-UNIV COOP FOUND SOGANG UNIV (KR)
International Classes:
G21B1/23; G01J3/02; G02B27/10
Foreign References:
| JP2003240715A | 2003-08-27 | |||
| JPH05312712A | 1993-11-22 | |||
| JPH06102086A | 1994-04-12 | |||
| KR20130099641A | 2013-09-06 | |||
| US5760388A | 1998-06-02 |
Other References:
See also references of EP 3401920A4
Attorney, Agent or Firm:
LEE, Ji-Yeon (KR)
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