2011 Particle Accelerator Conference - List of Authors (Abhangi, M.)

Paper	Title	Page
WEP257	Spectroscopic Estimation of Plasma Parameters for ECR Ion Source in the Intense 14-MeV Neutron Generator being developed at IPR	1963
	S. Banerjee, M. Abhangi, T.K. Basu, J. Ghosh, S.C. Jakhar, N. Ramaiya, C.V.S. Rao, S.J. Vala Institute for Plasma Research, Bhat, Gandhinagar, India P. Mehta Pandit Deendayal Petroleum University, Gandhinagar, India
	An accelerator based 14-MeV neutron generator, for fusion neutronics studies is being developed at IPR. ECR ion source is used to generate deuterium plasma. Electron density and temperature in the ECR plasma are measured using non-intrusive spectroscopic methods. Langmuir probes, though conventionally used for estimating local parameters in low-pressure microwave plasmas, are difficult to implement here owing to space constraint and heating of the probe from interaction with standing microwaves. Pure helium (He), He seeded hydrogen and deuterium plasmas are studied. Spectra for entire visible range are recorded for different fill pressures for a constant microwave power and different powers for a constant fill pressure. For optically thin plasmas of low density, line intensity ratio method can be used with appreciable reliability. CR model is used from ADAS (atomic data and analysis structure) to predict plasma parameters from suitable line ratios. sbanerje@ipr.res.in sudhir@ipr.res.in Institute for Plasma Research

Paper

Title

Page

Spectroscopic Estimation of Plasma Parameters for ECR Ion Source in the Intense 14-MeV Neutron Generator being developed at IPR

1963

S. Banerjee, M. Abhangi, T.K. Basu, J. Ghosh, S.C. Jakhar, N. Ramaiya, C.V.S. Rao, S.J. Vala
Institute for Plasma Research, Bhat, Gandhinagar, India
P. Mehta
Pandit Deendayal Petroleum University, Gandhinagar, India

An accelerator based 14-MeV neutron generator, for fusion neutronics studies is being developed at IPR. ECR ion source is used to generate deuterium plasma. Electron density and temperature in the ECR plasma are measured using non-intrusive spectroscopic methods. Langmuir probes, though conventionally used for estimating local parameters in low-pressure microwave plasmas, are difficult to implement here owing to space constraint and heating of the probe from interaction with standing microwaves. Pure helium (He), He seeded hydrogen and deuterium plasmas are studied. Spectra for entire visible range are recorded for different fill pressures for a constant microwave power and different powers for a constant fill pressure. For optically thin plasmas of low density, line intensity ratio method can be used with appreciable reliability. CR model is used from ADAS (atomic data and analysis structure) to predict plasma parameters from suitable line ratios.
sbanerje@ipr.res.in
sudhir@ipr.res.in
Institute for Plasma Research