Speaker
Veda Prakash
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P2.3002.pdf
Development and characterization of low-temperature atmospheric
pressure plasma jet
Veda Prakash, Kiran Patel, Narayan Behera, Ajai Kumar
Institute for Plasma Research, Bhat, Gandhinagar, HBNI, Mumbai, India
prakashgveda@gmail.com
Atmospheric pressure plasma jet (APPJ) source with helium (He) as an active gas is developed.
4 kV p-p, 33 kHz sinusoidal voltage is used to produce plasma jet. He gas with flow rates of
up to 11 liters per minute is used to produce plasma plume of around 6 cm in length into the
ambient air. Thorough characterization of the plume has been carried out using optical
diagnostics such as emission spectra measurements, ICCD imaging and electrical discharge
using voltage and current probes. Plasma discharge parameters such as electron excitation
temperature and gas temperature are estimated using emission spectra and are 800K and 305
K respectively. Further additional plume parameters such as velocity and plume current are
also estimated using ICCD images and current transformer. By using velocity and plume
current values, the density along the length of the plasma plume has been assessed and the
values are in the range of 0.05-3.2 x 1012 cm3 at various positions of the plume length.
Furthermore, the discharge ignition and plasma plume dynamics with flow rate will be
presented.
References:
[1] M. Laroussi, M. G. Kong, G. Morfill, W. Stolz, Plasma Medicine: Applications of Low-Temperature Gas
Plasmas in Medicine and Biology, Cambridge University Press, 2012,
[2] K. Yambe, H. Saito, and K. Ogura, IEEJ Trans. Electr. Electron. Eng. 10, 614–618 (2015)
[3] M. Laroussi, X. Lu, M. Keidar, J. Appl. Phys., vol. 122, no. 2, pp. 020901, 2017
