A simple photon cavity consisting of three flat mirrors is considered, which provides a model for a photon neutralizer of negative ion beams to be used in a neutral beam injector for plasma heating in fusion devices. Treating the system as an open mathematical billiard, the mechanism of photon scattering on the sharp boundary between two mirrors is described. Assuming a balance between the continuous injection of the photons into the device and their loss through its open ends, the stationary angular distribution of the photons in the trap is computed in closed form and an estimate for the confinement time of the photons in the neutralizer is provided.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.87.013111 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A cell-based Papain-like Protease (PLpro) activity assay for rapid detection of active SARS-CoV-2 infections and antivirals.
PLoS One
December 2024
Mesa Photonics, Santa Fe, NM, United States of America.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its variants are a continuous threat to human life. An urgent need remains for simple and fast tests that reliably detect active infections with SARS-CoV-2 and its variants in the early stage of infection. Here we introduce a simple and rapid activity-based diagnostic (ABDx) test that identifies SARS-CoV-2 infections by measuring the activity of a viral enzyme, Papain-Like protease (PLpro).
View Article and Find Full Text PDFHolistic Thermo-Optical Design of Laminate Layers for Halide Perovskite Photovoltaic Windows.
ACS Energy Lett
December 2024
National Renewable Energy Laboratory, Golden, Colorado 80401, United States.
Though power conversion is an important metric for photovoltaic windows, it must be balanced with visible transmittance, aesthetics (color and haze), and thermal performance. Optical properties are often reported, but thermal performance is typically neglected entirely in photovoltaic window design. Here, we introduce the strategy of using laminate layers to improve the thermo-optical performance of perovskite-based photovoltaic insulating glass units.
View Article and Find Full Text PDFReal-time monitoring of stromal NADPH levels in Arabidopsis using a metagenome-derived NADPH-binding fluorescent protein.
Plant Physiol Biochem
December 2024
Department of Biological Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea; Research Center of Ecomimetics, Chonnam National University, Gwangju, 61186, Republic of Korea; Research Center of Next-Generation Sensors, Institute of Sustainable Ecological Environment, Chonnam National University, Gwangju, 61186, Republic of Korea. Electronic address:
The light irradiation to the plant chloroplasts drives NADPH and ATP synthesis in the stroma via the electron transport chains within the thylakoid membranes. Conventional methods for assessing photosynthetic light reactions are often invasive or require specific conditions. While detection markers do not significantly affect plant growth itself, developing a method for the real-time and non-invasive detection of NADPH is a highly impactful and important research area in plant physiology and biochemistry.
View Article and Find Full Text PDFMUSTARDE ROTATION FLAP AS ADEQUATE OPTION FOR HIGH-RISK BCC NEAR THE LOWER EYE LID: THE ADDITIONAL INTAKE OF N-NITROSO-FOLIC-ACID AND N-NITROSO-RIVOROXABAN AS COFACTORS/TRIGGERS OF THE METABOLIC REPROGRAMMING OF THE FUTURE CANCER CELL.
Georgian Med News
June 2024
2Department of Dermatology and Venereology, Medical Institute of Ministry of Interior, Sofia, Bulgaria.
Article Synopsis
- The contamination of various drugs with nitrosamines, which are linked to skin cancer, is becoming a growing concern, particularly in relation to keratinocyte cancer and drug-induced carcinogenesis.
- Nitrosamines can have both phototoxic and genotoxic effects, and the possibility of drug-induced skin cancer is heightened when multiple contaminated drugs are taken simultaneously, potentially activating oncogenes and deactivating tumor suppressor genes.
- A case study highlights a female patient who developed three basal cell carcinomas after being treated with contaminated medications, suggesting that such contamination could significantly contribute to skin cancer risk in polypharmacy.
The Bright Side of Curcumin: A Narrative Review of Its Therapeutic Potential in Cancer Management.
Cancers (Basel)
July 2024
IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy.
Curcumin, a polyphenolic compound derived from Curcuma longa, exhibits significant therapeutic potential in cancer management. This review explores curcumin's mechanisms of action, the challenges related to its bioavailability, and its enhancement through modern technology and approaches. Curcumin demonstrates strong antioxidant and anti-inflammatory properties, contributing to its ability to neutralize free radicals and inhibit inflammatory mediators.
View Article and Find Full Text PDFWant 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!