Cyclotron resonance heating systems for SST-1

Autor:	Rajan Babu, K. Sathyanarayana, H M Jadav, Rajnish Kumar, Mikhail Shmelev, D. Pragnesh, P. Biswas, D. Bhattacharya, Jai Prakash Soni, Manoj Kumar Singh, P. Dharmesh, B. K. Shukla, Y.S.S. Srinivas, A. K. Bhardwaj, Singh Raghuraj, D. Bora, P. Kirit, H. Patel, P. Jatin, V. I. Belousov, B.R. Kadia, P.L. Khilar, R. Sugandhi, G. Siju, Raj Singh, G. Agrajit, K.M. Parmar, Asmita Mukherjee, E. M. Tai, S.V. Kulkarni, Sunil Kumar, V. K. Yadav, V. Kurbatov, D. Rathi, Mahesh Kushwah, M. Harsha, S. Dani, A.R. Makwana, Prabal K. Chattopadhyay, Atul Varia, C. G. Virani, Yu. Belov, J. P. Singh
Rok vydání:	2006
Předmět:	Dummy load Nuclear and High Energy Physics Materials science Nuclear engineering Cyclotron resonance Condensed Matter Physics Electron cyclotron resonance law.invention Nuclear magnetic resonance law Transmission line Gyrotron SST-1 Microwave Ion cyclotron resonance
Zdroj:	Nuclear Fusion. 46:S72-S84
ISSN:	1741-4326 0029-5515
Popis:	RF systems in the ion cyclotron resonance frequency (ICRF) range and electron cyclotron resonance frequency (ECRF) range are in an advanced stage of commissioning, to carry out pre-ionization, breakdown, heating and current drive experiments on the steady-state superconducting tokamak SST-1. Initially the 1.5 MW continuous wave ICRF system would be used to heat the SST-1 plasma to 1.0 keV during a pulse length of 1000 s. For different heating scenarios at 1.5 and 3.0 T, a wide band of operating frequencies (20–92 MHz) is required. To meet this requirement two CW 1.5 MW rf generators are being developed in-house. A pressurized as well as vacuum transmission line and launcher for the SST-1–ICRF system has been commissioned and tested successfully. A gyrotron for the 82.6 GHz ECRF system has been tested for a 200 kW/1000 s operation on a water dummy load with 17% duty cycle. High power tests of the transmission line have been carried out and the burn pattern at the exit of transmission line shows a gaussian nature. Launchers used to focus and steer the microwave beam in plasma volume are characterized by a low power microwave source and tested for UHV compatibility. Long pulse operation has been made feasible by actively cooling both the systems. In this paper detailed test results and the present status of both the systems are reported.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9b75d7cf30298c577876aba8a6c0764d https://doi.org/10.1088/0029-5515/46/3/s10 Zobrazit plný text záznamu