Microwave interferometer for plasma-density measurement on TMX Upgrade [electronic resource].
- Livermore, Calif : Lawrence Livermore National Laboratory, 1981.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 5 : digital, PDF file
- Additional Creators:
- Lawrence Livermore National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- A four-channel microwave interferometer operating at 140 GHz has been designed for installation on the upgrade to the Tandem Mirror Experiment (TMX Upgrade). The instrument can be used to measure plasma density simultaneously at four locations: by reconnecting the waveguide runs, density can be measured at other locations of interest. The design is an outgrowth of a system used on TMX, but includes some newly developed hardware. An over-mode circular waveguide system is used to transport the signals over long distances with only moderate losses. Several precautions have been taken to limit the effect of possible interference from the electron cyclotron resonant heating (ECRH) system used to heat the plasma. A high-resolution linear phase comparator has been designed that will operate over the wide range of signals expected. A CAMAC-based data-acquisition system provides for automatic data sampling and archival after each shot.
- Report Numbers:
- E 1.99:ucrl-85950
E 1.99: conf-811040-15
- Other Subject(s):
- Published through SciTech Connect.
9. symposium on engineering problems of fusion research, Chicago, IL, USA, 26 Oct 1981.
Stever, R.D.; Lund, N.P.; Coffield, F.E.
- Funding Information:
View MARC record | catkey: 14750003