Results 1 to 10 of about 155,917 (163)

Determination of excitation temperature in laser-induced plasmas using columnar density Saha-Boltzmann plot [PDF]

Journal of Advanced Research, 2019
In exploiting the analytical capabilities of plasma-based spectroscopy method, the evaluation of plasma parameters, particularly the plasma temperature, is a crucial step. In this work, a modified Saha-Boltzmann plot, which uses the columnar densities of
Ali Safi, S. Hassan Tavassoli, Gabriele Cristoforetti, Stefano Legnaioli, Vincenzo Palleschi, Fatemeh Rezaei, Elisabetta Tognoni   +6 more
doaj   +5 more sources

Optical Emission Spectroscopy of Zinc Oxide Doped Nickel Oxide to Calculate Plasma Parameters Using the Boltzmann Plot Method

Iraqi Journal of Physics
The study used the optical emission spectroscopy method to present the effect of changing doping ratios and laser energy on plasma parameters. Plasma spectra were acquired across energy levels by zinc oxide combined with nickel oxide (ZnOX: NiO1-X) at x
Muna A. Issa, Kadhim A. Aadim
doaj   +2 more sources

A Brief Review of Calibration-Free Laser-Induced Breakdown Spectroscopy

Frontiers in Physics, 2022
The calibration-free laser-induced breakdown spectroscopy (CF-LIBS) technique requires no reference samples of the same matrix to establish the calibration curve, not affected by the matrix effect.
Ning Zhang, Tianxue Ou, Meng Wang, Zhanjian Lin, Chao Lv, Yuzhi Qin, Jiaming Li, Huan Yang, Nan Zhao, Qingmao Zhang   +9 more
doaj   +1 more source

Importance of physical units in the Boltzmann plot method

Journal of Analytical Atomic Spectrometry, 2022
Dimensional analysis of the Boltzmann plot equation used to determine the temperature in a laboratory plasma.
Tobias Völker, Igor B. Gornushkin
openaire   +1 more source

Laser Induced Breakdown Spectroscopy of Er II for Transition Probability Measurements

Applied Sciences, 2022
We present a laser induced breakdown spectrum of Er II in the near ultraviolet region. To use the spectrum for the evaluation of the transition probabilities, an alloy target with a low content of Er was used to suppress the self-absorption.
Yuki Naoi, Masayuki Iwata, Daichi Yokota, Gediminas Gaigalas, Daiji Kato, Izumi Murakami, Hiroyuki A. Sakaue, Yuichiro Sekiguchi, Masaomi Tanaka, Hajime Tanuma, Shinya Wanajo, Nobuyuki Nakamura   +11 more
doaj   +1 more source

Evaluate the argon plasma jet parameters by optical emission spectroscopy

Kuwait Journal of Science, 2023
In this study, a method for experimentally evaluating the plasma parameters in the Argon plasma jet system with varying rates of Argon gas flow from 1 to 5 ​L/min operating at constant voltage and normal atmospheric pressure.
Harakat Mohsin Roomy, N. Yasoob A., Hamid H. Murbat   +2 more
doaj   +1 more source

Spectroscopical Characterization of Copper–Iron (Cu-Fe) Alloy Plasma Using LIBS, ICP-AES, and EDX

Metals, 2023
In this present work, we demonstrated a spectral characterization of copper–iron (Cu-Fe) alloy using optical emission spectroscopy. The Cu-Fe alloy plasma was generated on the target sample surface by directing the laser pulse of Q-switched Nd: YAG of ...
Amir Fayyaz, Javed Iqbal, Haroon Asghar, Tahani A. Alrebdi, Ali M. Alshehri, Waqas Ahmed, Nasar Ahmed   +6 more
doaj   +1 more source

Baroreflex Curve Fitting Using a WYSIWYG Boltzmann Sigmoidal Equation

Frontiers in Neuroscience, 2021
Arterial baroreflex assessment using vasoactive substances enables investigators to collect data pairs over a wide range of blood pressures and reflex reactions. These data pairs relate intervals between heartbeats or sympathetic neural activity to blood
Karsten Heusser, Ramona Heusser, Jens Jordan, Jens Jordan, Vasile Urechie, André Diedrich, Jens Tank   +6 more
doaj   +1 more source

The Study of the Characteristics of a Microwave Plasma Jet Operated with Ar at Atmospheric pressure

Tikrit Journal of Pure Science, 2022
In recent years, non-thermal atmospheric pressure plasma has attracted wide interest in industrial and biomedical fields due to its many advantages, such as its high efficiency, simple systems, easy operation, non-toxic residue, and low cost.
Ayat J. Mohamed, Mohammed K. Khalaf, Awatif sabir Jasim   +2 more
doaj   +1 more source

Spectroscopic evaluation of vibrational temperature and electron density in reduced pressure radio frequency nitrogen plasma

SN Applied Sciences, 2021
The optical emission spectroscopy technique is used to determine the vibrational temperature of the second positive band system, $$ N_{2} (C,\upsilon^{^{\prime}} - B,\upsilon^{^{\prime\prime}}$$ N 2 ( C , υ ′ - B , υ ″ ) in the wavelength range 367.1–380.
Hira Fatima, M. Usman Ullah, S. Ahmad, Mubashair Imran, S. Sajjad, S.Hussain, A. Qayyum   +6 more
doaj   +1 more source