A CO{sub 2} laser polarimeter for measurement of plasma current profile in Alcator C-Mod

Conference · Wed Jun 01 00:00:00 EDT 1994

OSTI ID:10161042

Ma, C H; Hutchinson, D P; Richards, R K ^[1]; Irby, J; Luke, T ^[2]

---

1. Oak Ridge National Lab., TN (United States)
2. Massachusetts Inst. of Tech., Cambridge, MA (United States). Plasma Fusion Center

A multichannel infrared polarimeter system for measurement of the plasma current profile in Alcator C-Mod has been designed, constructed, and tested. The system utilizes a cw CO{sub 2}, laser at a wavelength of 10.6 {mu}m. An electro-optic polarization-modulation technique has been used to achieve the high sensitivity required for the measurement. The recent results of the measurements as well as the feasibility of its application on ITER are presented.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10161042
• Report Number(s): CONF-940552-10; ON: DE94014017
• Resource Relation: Conference: 10. topical conference on high-temperature plasma diagnostics,Rochester, NY (United States),8-12 May 1994; Other Information: PBD: [1994]
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALCATOR DEVICE
PLASMA DIAGNOSTICS
ELECTRON DENSITY
MEASURING METHODS
CARBON DIOXIDE LASERS
POLARIMETERS
MULTI-CHANNEL ANALYZERS
INTERFEROMETERS
700320
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION