Results 41 to 50 of about 43,999 (288)
Actual metrological conditions for ionizing chamber calibration in radiotherapy [PDF]
Archive of Oncology, 2004 BACKGROUND: Since 1976 it has been recognized that an accuracy of ±5% in the delivery of an absorbed dose to a target volume is necessary for successful therapy treatment.
Spasić-Jokić Vesna M.
doaj +1 more source
Quantum Microwave Radiometry with a Superconducting Qubit. [PDF]
Physical Review Letters, 2019 The interaction of photons and coherent quantum systems can be employed to detect electromagnetic radiation with remarkable sensitivity. We introduce a quantum radiometer based on the photon-induced dephasing process of a superconducting qubit for ...
Zhixin Wang +8 more
semanticscholar +1 more source
Indonesian Journal of Chemistry, 2013 Air particulate matter concentrations, black carbon as well as elemental concentrations in two semi industrial sites were investigated as a preliminary study for evaluation of air quality in these areas.
Diah Dwiana Lestiani +3 more
doaj +1 more source
, 2011 The cross-correlation search for gravitational wave, which is known as 'radiometry', has been previously applied to map of the gravitational wave stochastic background in the sky and also to target on gravitational wave from rotating neutron stars ...
Dhurandhar, Sanjeev +4 more
core +1 more source
Mapping the CMB II: the second flight of the QMAP experiment
, 1998 We report the results from the second flight of QMAP, an experiment to map the cosmic microwave background near the North Celestial Pole. We present maps of the sky at 31 and 42 GHz as well as a measurement of the angular power spectrum covering the l ...
Amber D. Miller +8 more
core +1 more source
On the calibration of the relation between geometric albedo and polarimetric properties for the asteroids [PDF]
, 2015 We present a new extensive analysis of the old problem of finding a satisfactory calibration of the relation between the geometric albedo and some measurable polarization properties of the asteroids.
Bagnulo, S. +5 more
core +5 more sources
Night-sky radiometry can revolutionize the characterization of light-pollution sources globally
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance Anthropogenic skyglow is currently a serious threat to natural environments near human settlements; however, a spread of light over wide areas is difficult to predict due to uncertainties in the city emission function (CEF) from many light ...
M. Kocifaj +2 more
semanticscholar +1 more source
Ensquared Energy and Optical Centroid Efficiency in Optical Sensors: Part 1, Theory
Photonics, 2023 High-performance megapixel focal plane arrays with small pixels have been widely used in modern optical remote sensing, astronomical, and surveillance instruments.
Marija Strojnik +3 more
doaj +1 more source
Rigorous FEM-Simulation of EUV-Masks: Influence of Shape and Material Parameters [PDF]
, 2006 We present rigorous simulations of EUV masks with technological imperfections like side-wall angles and corner roundings. We perform an optimization of two different geometrical parameters in order to fit the numerical results to results obtained from ...
Burger, S. +6 more
core +3 more sources
Adsorption Science & Technology, 1999 Adsorption/desorption isotherms from the gaseous phase (benzene vapour, nitrogen) have been determined consecutively a number of times on the same activated carbon sample.
Bogdan J. Trznadel +2 more
doaj +1 more source