Search Results - "Chowdhuri, M B"

Role of pinch in Argon impurity transport in ohmic discharges of Aditya-U Tokamak by Shah, K., Ghosh, J., Patel, S., Chowdhuri, M. B., Jadeja, K. A., Shukla, G., Macwan, T., Kumar, A., Dolui, S., Singh, K., Tanna, R. L., Patel, K. M., Dey, R., Manchanda, R., Ramaiya, N., Kumar, R., Aich, S., Yadava, N., Purohit, S., Gupta, M. K., Nagora, U. C., Pathak, S. K., Atrey, P. K., Mayya, K. B. K.

“…We present experimental results of the trace argon impurity puffing in the ohmic plasmas of Aditya-U tokamak performed to study the argon transport behaviour…”
Get full text

Author Correction: Role of pinch in Argon impurity transport in ohmic discharges of Aditya-U Tokamak by Shah, K., Ghosh, J., Patel, S., Chowdhuri, M. B., Jadeja, K. A., Shukla, G., Macwan, T., Kumar, A., Dolui, S., Singh, K., Tanna, R. L., Patel, K. M., Dey, R., Manchanda, R., Ramaiya, N., Kumar, R., Aich, S., Yadava, N., Purohit, S., Gupta, M. K., Nagora, U. C., Pathak, S. K., Atrey, P. K., Mayya, K. B. K.

Get full text

A Study of the von Neumann Stability Analysis of a Semi-implicit Numerical Method Applied Over the Radial Impurity Transport Equation in Tokamak Plasma by Bhattacharya, Amrita, Munshi, Prabhat, Ghosh, Joydeep, Chowdhuri, M. B.

“…The radial impurity transport equation for tokamak plasma is a form of diffusion–convection–reaction equation. The impurity transport equation is solved to…”
Get full text

Relativistic atomic structure calculations of Li-like ions used for plasma diagnostic studies by Singh, Gajendra, Singh, A K, Chowdhuri, M B, Nandi, T

“…We have carried out atomic structure calculations using systematically enlarged multiconfiguration Dirac-Fock wavefunctions of Li-like ions of the most…”
Get full text

Model prediction of impurity retention in stochastic magnetic boundary and comparison with edge carbon emission in LHD by Kobayashi, M., Feng, Y., Morita, S., Chowdhuri, M.B., Goto, M., Masuzaki, S., Ohyabu, N., Morisaki, T., Yamada, H., Yamada, I., Narihara, K., Sato, K., Funaba, H., Tamura, N., Nakamura, Y., Komori, A., Motojima, O.

“…Impurity retention (screening) potential in the edge region with stochastic magnetic field in LHD (large helical device) is studied numerically using the…”
Get full text

Generalization of the Stability Condition for the Semi–Implicit Formulation of the Radial Impurity Transport Equation in Tokamak Plasma in Terms of the Magnetic Flux Surface Coordinate by Bhattacharya, Amrita, Ghosh, Joydeep, Chowdhuri, M. B., De, Ashoke

“…The present study details the generalization of a stability condition for the semi-implicit formulation of the one-dimensional impurity transport equation for…”
Get full text

Role of magnetohydrodynamic activity in sawtooth induced heat pulse propagation in ADITYA tokamak by Patel, S., Ghosh, J., Chowdhuri, M. B., Mayya, K. B. K., Manchanda, R., Pandya, H. K. B., Tanna, R. L., Kumar, V., Joisa, S., Purohit, S., Raju, D., Jha, S., Atrey, P. K., Rao, C. V. S., Vasu, P., Chenna Reddy, D., Bhatt, S. B., Saxena, Y. C.

“…Fast propagation of sawtooth induced heat pulse is observed in the magnetohydrodynamic (MHD) active plasmas of ADITYA tokamak. The sawtooth crash deposits heat…”
Get full text

Edge plasma physics/plasma–wall interactions during high density operation in LHD by Komori, A., Morisaki, T., Masuzaki, S., Kobayashi, M., Suzuki, Y., Sakamoto, R., Morita, S., Chowdhuri, M.B., Goto, M., Miyazawa, J., Yamada, I., Narihara, K., Ohyabu, N., Sagara, A., Yamada, H., Motojima, O.

“…Superdense plasma with a highly peaked electron density profile was obtained in the reduced recycling discharge in the Large Helical Device (LHD). During the…”
Get full text

A diagnostic for measuring radial profile of visible continuum radiation from ADITYA-U Tokamak Plasmas by Chowdhuri, M.B., Manchanda, R., Ghosh, J., Yadava, N., Patel, Kinjal, Ramaiya, N., Patel, S., Shah, M., Rajpal, R., Nagora, U.C., Pathak, S.K., Raval, J., Gupta, M.K., Kumar, Rohit, Aich, Suman, Jadeja, K.A., Tanna, R.L., team, ADITYA U

“…On ADITYA-U tokamak, a spectroscopic diagnostic has been developed to measure the radial profile of visible continuum radiation for determining the plasma…”
Get full text

Origin and dynamics of plasma blob by Sahoo, G., Paikaray, R., Samantaray, S., Das, P., Ghosh, J., Chowdhuri, M. B., Sanyasi, A. K.

“…Summary form only given. Convective transport of plasma at edge and Scrape-off-layer (SOL) of plasma is an important issue in all the fusion machines needs to…”
Get full text

Vacuum coupling of photo multiplier tube with monochromator for improved monitoring of VUV emission from Aditya tokamak by Manchanda, R, Chowdhuri, M B, Ghosh, J, Patel, K M, Ramaiya, N, Banerjee, S, Chanchapara, Niral, Mali, Aniruddh, Rathod, Vipal, Hansalia, C J, Kumar, Vinay

“…UV sensitive solar blind photo multiplier tube (PMT) attached on the exit slit of the VUV monchromators through a vacuum interface of MgF(2) window are,…”
Get full text

Gyrokinetic simulations of electrostatic microturbulence in ADITYA-U tokamak with argon impurity by Singh, Tajinder, Shah, Kajal, Sharma, Deepti, Ghosh, Joydeep, Jadeja, Kumarpalsinh A., Tanna, Rakesh L., Chowdhuri, M.B., Lin, Zhihong, Sen, Abhijit, Sharma, Sarveshwar, Kuley, Animesh

“…The effect of impurity on the electrostatic microturbulence in ADITYA-U tokamak is assessed using global gyrokinetic simulations. The realistic geometry and…”
Get full text

Runaway electron mitigation with pulsed localized vertical magnetic field perturbation in ADITYA tokamak by Tanna, R.L., Patel, S., Ghosh, J., Chauhan, Chetna, Amardas, A., Chattopadhyay, P.K., Jadeja, K.A., Joisa, Y.S., Nagora, U.C., Atrey, P.K., Chowdhuri, M.B., Manchanda, R., Saxena, Y.C.

“…To reduce the risk of severe damage to the vessel and inner peripherals of any tokamak and its safe operation, a robust technique for the mitigation of runaway…”
Get full text

ECRH Two-Pulse (Breakdown and Heating) Experiments on Tokamaks Aditya-U and SST-1 by Shukla, Braj Kishore, Ghosh, Joydeep, Raju, D., Tanna, R. L., Tanna, Vipul, Prasad, Upendra, Patel, Jatin, Patel, Harshida, Purohit, Dharmesh, Kushwah, Mahesh, Pathak, S. K., Atrey, P. K., Mistry, Hardik, Parmar, K. G., Gupta, Manoj, Manchanda, Ranjana, Mahajan, Kiti, Chauhan, Aveg, Raval, D., Kumar, Rohit, Aich, Suman, Jadeja, K. A., Patel, K. M., Raj, Harshita, Macwan, Tanmay, Balakrishnan, V., Gupta, Shivam, Makwana, M. N., Shah, K. S., Gupta, C. N., Chowdhuri, M. B., Nagora, Umesh, Siju, Varsha, Raval, Jayesh, Tahiliani, K., Gautam, Pramila, Praveenlal, E. V., Chattopadhyay, P. K.

“…Electron cyclotron resonance heating (ECRH) two-pulse experiments are carried out on the tokamaks SST-1 and Aditya-U using single 42-GHz gyrotron. Initially,…”
Get full text

The effect of impurity seeding on edge toroidal rotation in the ADITYA-U tokamak by Kumar, Ankit, Shah, K., Chowdhuri, M.B., Ramaiya, N., Gauttam, Aman, Jadeja, K.A., Hedge, Bharat, Yadava, N., Singh, Kaushlender, Dolui, Suman, Macwan, Tanmay, Kumawat, Ashok, Gautam, Pramila, Pradhan, Laxmikanta, Raj, Harshita, Shukla, G., Modi, Dipexa, Patel, S., Banerjee, Soumitra, Hoque, Injamul, Komal, Aich, Suman, Patel, Ankit, Utsav, Kanik, A., Kumar, Rohit, Verma, Priyanka, Patel, K.M., Galodiya, Kalpesh, Shah, M., Tanna, R.L., Ghosh, Joydeep

“…Intrinsic toroidal rotation velocity ( V φ ) has been measured from the Doppler shift of C 5+ carbon spectral lines (at 529.05 nm) in the edge region of the…”
Get full text

Real-time feedback control system for ADITYA-U horizontal plasma position stabilisation by Kumar, Rohit, Gautam, Pramila, Gupta, Shivam, Tanna, R.L., Edappala, Praveenlal, Shah, Minsha, Raulji, Vismay, Jadeja, K.A., Patel, K.M., Macwan, Tanmay, Manchanda, Ranjana, Chowdhuri, M.B., Yadava, Nandini, Shah, Kunal, Makwana, M.N., Balakrishnan, V., Gupta, C.N., Aich, Suman, Kumawat, Devilal, Raj, Harshita, Sathyanarayana, K., Ghosh, Joydeep, Rajpal, Rachna, Chattopadhyay, P.K., Saxena, Y.C.

“…The ADITYA-U tokamak (R0 = 0.75 m, a = 0.25 m) is designed to shape plasma column in both single and double null diverter configurations. It is quite well…”
Get full text

Use of dielectric barrier discharge in air for surface modification of polyester substrate to confer durable wettability and enhance dye uptake with natural dye eco-alizarin by Dave, Hemen, Ledwani, Lalita, Chandwani, Nisha, Kikani, Purvi, Desai, Bhakti, Chowdhuri, M.B., Nema, S.K.

“…In the present work, polyester film and fabric were exposed to dielectric barrier discharge in air at atmospheric pressure to increase wettability and dye…”
Get full text

Characterization of Atmospheric Pressure Glow Discharge in Helium Using Langmuir Probe, Emission Spectroscopy, and Discharge Resistivity by Srivastava, A.K., Garg, M.K., Prasad, K.S.G., Kumar, V., Chowdhuri, M.B., Prakash, R.

“…The experimental work reported here is a validation of Langmuir probe measurements against emission spectroscopic and discharge resistivity measurements of…”
Get full text

Exploring Core-to-edge Transport in Aditya Tokamak by Oscillations Observed in the edge Radiation by Chowdhuri, M. B, Raju, D, Manchanda, R, Kumar, Vinay, Joisa, Shankar, Atrey, P. K, Rao, C. V. S, Jha, R, Singh, R, Vasu, P, Collaboration, the Aditya

“…Understanding of the transport in a Tokamak plasma is an important issue. Various mechanisms have been reported in the literature to relate the core phenomenon…”
Get full text