نتایج جستجو برای: ultraviolet detector

تعداد نتایج: 98559  

2013
John Sporre David N. Ruzic

As extreme ultraviolet light lithography matures, critical deficits in the technology are being resolved. Research has largely focused on solving the debris issue caused by using warm (Te ∼ 30 eV) and dense (n e ∼ 10 20 cm −3) plasma to create 13.5-nm light. This research has been largely focused on the mitigation of the debris between the plasma and the collector optics. The next step of debri...

2001
Stuart Bowyer Eric Korpela Thomas Berghöfer

We present studies of the Extreme Ultraviolet (EUV) emission in the Fornax cluster of galaxies; a relatively nearby well-studied cluster with X-ray emitting cluster gas and a very large radio source. We examine both the large-scale (∼ size of the X-ray emitting cluster gas), and the small-scale (< arc min) emission. We find that this cluster has large-scale diffuse EUV emission. However, at the...

Journal: :Journal of chromatography 1993
M Hariharan S Naga T VanNoord E K Kindt

A high-performance liquid chromatographic method using ultraviolet detection to quantitate human plasma concentrations of cortisone simultaneously with cortisol and corticosterone is described. The method is based on the use of an octadecyl silica column (100 mm x 2 mm I.D., 3 microns), an ultraviolet absorbance detector (242 nm) with a 10 mm path length flow-cell, and a mobile phase composed o...

2017
Chien-Yie Tsay Wei-Tse Hsu

ZnO, Al-doped ZnO (AZO), and Ga-doped ZnO (GZO) semiconductor thin films were deposited on glass substrates via a sol-gel spin-coating process for application in a photoconductive ultraviolet (UV) detector. The doping concentrations of Al and Ga were 1.0 at % in the precursor solutions. In this study, the microstructural features and the optical and electrical properties of sol-gel-derived ZnO,...

Journal: :Remote Sensing 2022

Tracking Ultraviolet Set-up (TUS) on board the Lomonosov satellite measured UV intensity pulsations in auroral region. Sixty-four events with were registered during two measurement periods from 26 December 2016–10 January 2017 and 8–15 November 2017. During both periods, a high-intensity, long-duration, continuous activity (HILDCAA) was detected. Simultaneous measurements LEO by (DEPRON detecto...

ژورنال: پژوهش در پزشکی 2011
رحمنی, سعید, طباطبایی, سید مهدی, قاسمی برومند, محمد, نظری, محمدرضا ,

Abstract Background: Solar light has various electromagnetic radiations include Ultraviolet, Visible & infrared rays. Overexposure to solar ultraviolet radiations can lead to some dangerous disorders and usage of non standard sunglasses can increase foregoing harmful effects. In Iran cataract is the most common disorder produced by UV rays. This study aims to measure the transmission of ultr...

Apigenin is best known as an irreversible inhibitor of monoamine oxidase (MAO), an intracellular enzyme associated with the outer membrane of mitochondria. The purpose of this study is to establish a reliable and quick method for the assignment of Apigenin in Cosmos bipinnatus, Apium graveolens and Petroselinum crispum by high performance liquid chromatography with ultraviolet detection (HPLC-U...

Hossein Danafar,

Tolterodine tartrate, is a new, potent and competitive muscarinic receptor antagonist in clinical development for the treatment of urge incontinence and other symptoms of unstable bladder. The purpose of this study is to establish a reliable and quick method for the assignment of tolterodine tartrate by high performance liquid chromatography with ultraviolet detection (HPLC-UV). A rapid&nbsp; a...

Hossein Danafar, Mehrdad Hamidi,

Phenylalanine (Phe) is the most reliable indicator for the diagnosis of phenylketonuria (PKU). The purpose of this study is to establish a reliable and quick method for the assignment of Phe in peripheral capillary blood from newborns and children by high performance liquid chromatography with ultraviolet detection (HPLC-UV). PKU is an inborn error of metabolism characterized by the inability o...

2007
P. Achenbach

One contribution to the time resolution of a scintillation detector is the signal time spread due to path length variations of the detected photons from a point source. In an experimental study a rectangular scintillator was excited by means of a fast pulsed ultraviolet laser at different positions along its longitudinal axis. Timing measurements with a photomultiplier tube in a detection plane...

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