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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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Fusion Science and Technology
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DOE issues final RFQ for WIPP clean energy initiative
The Department of Energy’s Office of Environmental Management has issued a request for qualifications for interested parties and prospective offerors looking to enter into a realty agreement for carbon-pollution-free electricity (CFE) projects at the department’s Waste Isolation Pilot Plant site in southeastern New Mexico.
B. K. Shukla, K. Sathyanarayana, D. Bora, Sanjay V. Kulkarni, Sampa Gangopadhyay, Y. S. S. Srinivas, P. L. Khilar, Mahesh Kushwah, R. G. Trivedi, S. Rajashree, Barnali Pal, Anil Bhardwaj, D. Rathi, B. R. Kadia, Ashish Patel, Chetan Virani, Harsida Patel, H. M. Jadav, K. G. Parmar, P. Shah, A. R. Makwana, Sunil Dani, P. Kirit, M. Harsha, J. Soni, RF Group
Fusion Science and Technology | Volume 50 | Number 4 | November 2006 | Pages 551-560
Technical Note | doi.org/10.13182/FST06-A1279
Articles are hosted by Taylor and Francis Online.
An electron cyclotron resonance heating system is commissioned on Aditya tokamak to carry out pre-ionization, start-up, and heating experiments. A high-power microwave source (gyrotron), capable of delivering 200-kW cw power at 28 ± 0.1 GHz, is commissioned successfully using a water dummy load for pulsed operation. The output mode of the gyrotron is TE02. The output power of the gyrotron is measured using microwave probe couplers, a spectrum analyzer, and calorimetric techniques. A hardwired interlock operates a rail-gap-based crowbar system in less than 10 s under fault condition and protects the gyrotron. The rail-gap crowbar operation has been qualified with the high-voltage power supply by performing a 10-J wire-burn test prior to energizing the gyrotron.A transmission line consisting of matching optic units, dc break, polarizer, miter bend, and corrugated waveguides terminates with a boron nitride window. The total attenuation in the line is measured to be less than 1.1 dB. Based on quasi-optical theory, a beam launcher is designed, fabricated, and tested for ultrahigh-vacuum compatibility prior to commissioning on tokamak.After successful operation of the gyrotron on the dummy load, the gyrotron output has been coupled to the ADITYA tokamak, and successful breakdown of neutral gas is observed without assistance from an ohmic transformer.