A computationally assisted spectroscopic technique to measure secondary electron emission coefficients in radio frequency plasmas

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Emission of electron Bernstein waves in plasmas

Related Articles The effects of neutral gas heating on H mode transition and maintenance currents in a 13.56MHz planar coil inductively coupled plasma reactor Phys. Plasmas 19, 093501 (2012) Collisionless inter-species energy transfer and turbulent heating in drift wave turbulence Phys. Plasmas 19, 082309 (2012) Development of a low-energy and high-current pulsed neutral beam injector with a wa...

متن کامل

Secondary electron emission studies

Secondary-electron-emission processes under electron bombardment play an important role in the performance of a variety of electron devices. While in some devices, the anode and the grid require materials that suppress the secondary-electron-generation process, the crossed-field amplifier (CFA) is an example where the cathode requires an efficient secondaryelectron-emission material. Secondary-...

متن کامل

Secondary-Electron-Emission Instability in a Plasma

A 200-eV electron beam is incident on an electrode in a laboratory plasma. The emission of secondary electrons produces a region of negative differential resistance in the current-voltage characteristic of the electrode. Spontaneous dynatron oscillations are driven by the negative differential resistance when a resonant circuit is placed in series with the electrode. The instability is driven b...

متن کامل

General cause of sheath instability identified for low collisionality plasmas in devices with secondary electron emission.

A condition for sheath instability due to secondary electron emission (SEE) is derived for low collisionality plasmas. When the SEE coefficient of the electrons bordering the depleted loss cone in energy space exceeds unity, the sheath potential is unstable to a negative perturbation. This result explains three different instability phenomena observed in Hall thruster simulations including a ne...

متن کامل

Investigation of effect of excitation frequency on electron energy distribution functions in low pressure radio frequency bounded plasmas

Particle in cell (PIC) simulations are employed to investigate the effect of excitation frequency x on electron energy distribution functions (EEDFs) in a low pressure radio frequency (rf) discharge. The discharge is maintained over a length of 0.10 m, bounded by two infinite parallel plates, with the coherent heating field localized at the center of the discharge over a distance of 0.05 m and ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Physics D: Applied Physics

سال: 2016

ISSN: 0022-3727,1361-6463

DOI: 10.1088/0022-3727/49/23/234001