Measuring the temperature of microparticles in plasmas.

Rev Sci Instrum

INP Greifswald, Felix-Hausdorff-Str. 2, D-17489 Greifswald, Germany.

Published: September 2008

Temperature sensitive features of particular phosphors were utilized for measuring the temperature T(p) of microparticles, confined in the sheath of a rf plasma. The experiments were performed under variation of argon pressure and rf power of the process plasma. T(p) has been determined by evaluation of characteristic fluorescent lines. The results for T(p) measurements are strongly dependent on rf power and gas pressure.

Download full-text PDF

Source
http://dx.doi.org/10.1063/1.2987688DOI Listing

Publication Analysis

Top Keywords

measuring temperature
8
temperature microparticles
8
microparticles plasmas
4
plasmas temperature
4
temperature sensitive
4
sensitive features
4
features phosphors
4
phosphors utilized
4
utilized measuring
4
microparticles confined
4

Similar Publications

High Entropy: A General Strategy for Broadening the Operating Temperature of Magnetic Refrigeration.

J Am Chem Soc

January 2025

Department of Physical Chemistry, Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China.

Lattice distortion and disorder in the chemical environment of magnetic atoms within high-entropy compounds present intriguing issues in the modulation of magnetic functional compounds. However, the complexity inherent in high-entropy disordered systems has resulted in a relative scarcity of comprehensive investigations exploring the magnetic functional mechanisms of these alloys. Herein, we investigate the magnetocaloric effect (MCE) of the high-entropy intermetallic compound GdTbDyHoErCo.

View Article and Find Full Text PDF

Comparison of Temporal Artery and Rectal Temperature Measurement During Cooling and Rewarming in Neonates Treated for Hypoxic Ischemic Encephalopathy.

Adv Neonatal Care

January 2025

Author Affiliations: Neonatal Intensive Care Unit, Seattle Children's Hospital, Seattle, WA (Mrs LaBella, Ms Kelly, Mrs Carlin, and Dr Walsh); and Seattle Children's Research Institute, Seattle, WA (Mrs Carlin and Dr Walsh).

Background: Finding an accurate and simple method of thermometry in the neonatal intensive care unit is important. The temporal artery thermometer (TAT) has been recommended for all ages by the manufacturer; however, there is insufficient evidence for the use of TAT in infants, especially to detect hypothermia.

Purpose: To assess the accuracy of the TAT in hypothermic neonates in comparison to a rectal thermometer.

View Article and Find Full Text PDF

Waste Heat and Habitability: Constraints from Technological Energy Consumption.

Astrobiology

January 2025

Department of Aerospace, Physics and Space Sciences, Florida Institute of Technology, Melbourne, Florida, USA.

Waste heat production represents an inevitable consequence of energy conversion as per the laws of thermodynamics. Based on this fact, by using simple theoretical models, we analyze constraints on the habitability of Earth-like terrestrial planets hosting putative technological species and technospheres characterized by persistent exponential growth of energy consumption and waste heat generation. In particular, we quantify the deleterious effects of rising surface temperature on biospheric processes and the eventual loss of liquid water.

View Article and Find Full Text PDF

The distribution of substitutional aluminum (Al) atoms in zeolites affects molecular adsorbate geometry, catalytic activity, and shape and size selectivity. Accurately determining Al positions has been challenging. We used synchrotron resonant soft x-ray diffraction (RSXRD) at multiple energies near the Al K-edge combined with molecular adsorption techniques to precisely locate "single Al" and "Al pairs" in a commercial H-ZSM-5 zeolite.

View Article and Find Full Text PDF

Advanced low-power filter architecture for biomedical signals with adaptive tuning.

PLoS One

January 2025

Computer Engineering, CCSIT, King Faisal University, Al Hufuf, Kingdom of Saudi Arabia.

This paper presents a low-power, second-order composite source-follower-based filter architecture optimized for biomedical signal processing, particularly ECG and EEG applications. Source-follower-based filters are recommended in the literature for high-frequency applications due to their lower power consumption when compared to filters with alternative topologies. However, they are not suitable for biomedical applications requiring low cutoff frequencies as they are designed to operate in the saturation region.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!