Reflectometry Applications to Iter
نویسندگان
چکیده
منابع مشابه
5 . Participation in the Iter Project
5.2. MICROWAVE REFLECTOMETRY 5.2.1. Main activities The activities on microwave reflectometry have been related with the design analysis of the position reflectometer, development of an advanced FM-CW coherent reflectometer and experimental demonstration studies on ASDEX-Upgrade of plasma position/shape measurements in ITER relevant scenarios. Concerning the design analysis of the position refl...
متن کاملOngoing work towards real-time reflectometry density profile measurements on ASDEX Upgrade
Previous studies performed in ASDEX Upgrade ELMy H-mode regimes (Santos et al. [2003]), ITER reference scenario, have shown that O-mode FM-CW reflectometry should meet the accuracy required on ITER for using reflectometry for position control purposes. This application, however, requires the development of robust unsupervised methods to evaluate the density profiles in real time. To allow a sta...
متن کاملReconstruction method of X-mode ultrashort-pulse reflectometry in LHD
Reflectometry is considered to be one of the key diagnostics to measure density profiles and density fluctuations of fusion oriented plasmas. When an electromagnetic wave is launched into a plasma, the wave is reflected at the corresponding cutoff layer of the ordinary (O) mode or the extraordinary (X) mode. Reflectometry measures the time of flight (TOF) or group delay of the reflected wave. W...
متن کاملNotch Filter Options for ITER Stray Gyrotron Radiation
ITER will have multi megawatt gyrotron systems at 170, 120, and potentially at 60 GHz for ECH, current drive, NTM control, start up, and CTS diagnostics. The ITER environment will therefore have significant background levels of stay radiation at these frequencies that can pose a problem to a number of diagnostic systems. Several deep, narrowband reject filter approaches have been examined. Thes...
متن کاملHigh resolution fast wave reflectometry: JET design and implications for ITER.
The measurement of the fuel mixture remains a very difficult task in thermonuclear plasmas, where the hydrogen isotopes are fully stripped and do not emit line radiation. On the other hand, direct determination of the ion species mix will be essential in the reactor to keep the mixture close to 50/50 and maximize the fusion output. In this paper, the design of fast wave reflectometry for JET is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002