Zobrazeno 1 - 10
of 22
pro vyhledávání: '"S C Deorani"'
Publikováno v:
International Journal for Research in Applied Science and Engineering Technology. 10:91-99
The Dielectric losses are theoretical investigated for CaxSr1-xTiO3 and PbxSr1-xTiO3 single crystal perovskites in paraelectric phase as a function of composition and temperature. In our calculation, the Silverman Joseph`s Hamiltonian augmented with
Autor:
Hasina Khatun, Vivek Yadav, Sudeep Sharan, Nitin Kumar, A. K. Sinha, S. C. Deorani, Pradip Kumar Jain, Basant K. Jha, Mukesh Kumar Alaria
Publikováno v:
Sadhana. 38:1347-1356
This paper presents experimental results for cold testing of a gyrotron open resonator. Experiments were carried out to measure resonant frequency and their particular quality factor for TE mode at the frequency 42 GHz. The perturbation technique was
Publikováno v:
Infrared Physics & Technology. 60:24-28
The effect of interaction cavity geometry on the gyrotron performance in terms of cold cavity parameters (Q value and axial electric field profile), Ohmic wall loss, start oscillation current and interaction efficiency are analyzed in detail in this
High-Frequency Transmission Characteristics of Inert Coolant Liquids for High-Power Gyrotron Windows
Autor:
Anil Kumar, R. Bhattacharya, Udaybir Singh, S. C. Deorani, Niraj Kumar, V. Yadav, Anupam Sinha
Publikováno v:
IEEE Transactions on Plasma Science. 41:450-455
The frequency response of dielectric properties of coolant liquids used in the gyrotron RF window is measured. FC-40, FC-75, and CCl4 are considered for the measurements due to their reported application in gyrotron and excellent dielectric propertie
Autor:
Hasina Khatun, BK Jha, S. C. Deorani, Nitin Kumar, Sudeep Sharan, A. K. Sinha, Pradip Kumar Jain, Mukesh Kumar Alaria, Vivek Yadav
Publikováno v:
Infrared Physics & Technology. 54:337-342
This paper presents experimental results for cold testing a gyrotron open resonator. Experiments were accomplished to measure resonant frequency and their particular quality factor for TE mode at the operating frequency. The perturbation technique wa
Publikováno v:
Material Science Research India. 8:137-141
The anomalous ultrasonic attenuation of longitudinal wave propagated in KDP and DKDP have been discussed and calculated near Curie-temperature (Tc) in Para- electric phase in the frequency range 5 to 50 MHz. The attenuation of longitudinal waves is p
Autor:
S. C. Deorani, M. S. Yadav
Publikováno v:
Material Science Research India. 7:509-513
Using thermal-double time Green?s function method, Fourier transform and Dyson?s equation, theoretical expressions are obtained for Curie-temperature and microwave absorption coefficient for a ferroelectric cubic crystal containing defect (substituti
Publikováno v:
2013 IEEE 14th International Vacuum Electronics Conference (IVEC).
In this paper, the results of permittivity and loss tangent measurements of high frequency ceramics are presented. The free space method is used to measure the permittivity and loss tangent of different ceramics in the millimeter wave band (110 GHz-1
Publikováno v:
Frequenz. 67
This paper presents the design of 28 GHz, 200 kW gyrotron for Indian TOKAMAK system. The paper reports the designs of interaction cavity, magnetron injection gun and RF window. EGUN code is used for the optimization of electron gun parameters. TE
Autor:
Nitin Kumar, Narugopal Nayek, Subrata Das, Mukesh Kumar Alaria, Sudeep Sharan, Vivek Yadav, S. C. Deorani, A. K. Sinha
Publikováno v:
2011 IEEE International Vacuum Electronics Conference (IVEC).
In this paper the results of dielectric properties measurements of FC-75 (Fluoro Carbon-75) are presented, which is used in the double disk RF window of gyrotron as a coolant. The dielectric constant, the dielectric loss, the a.c. conductivity and th