Results 1 to 10 of about 271,806 (319)

Microarcsecond Radio Imaging using Earth Orbit Synthesis [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
The observed interstellar scintillation pattern of an intra-day variable radio source is influenced by its source structure. If the velocity of the interstellar medium responsible for the scattering is comparable to the earth's, the vector sum of these ...
Cornwell T. J.   +6 more
core   +14 more sources

Cherenkov and Scintillation Light Separation in Organic Liquid Scintillators [PDF]

open access: yesThe European Physical Journal C, 2017
The CHErenkov / Scintillation Separation experiment (CHESS) has been used to demonstrate the separation of Cherenkov and scintillation light in both linear alkylbenzene (LAB) and LAB with 2g/L of PPO as a fluor (LAB/PPO).
Caravaca, J.   +4 more
core   +6 more sources

Inorganic scintillating materials and scintillation detectors

open access: yesProceedings of the Japan Academy Series B: Physical and Biological Sciences, 2018
Scintillation materials and detectors that are used in many applications, such as medical imaging, security, oil-logging, high energy physics and non-destructive inspection, are reviewed. The fundamental physics understood today is explained, and common scintillators and scintillation detectors are introduced.
Takayuki Yanagida
exaly   +4 more sources

The Scintillation of Stars [PDF]

open access: yesNature, 1950
IN a recent communication in Nature1, Dr. A. H. R. Goldie has suggested that the scintillation of stars may be associated with waves at an interface between two currents of air which have a difference of temperature of the order of 5–7° F. “Such waves,” he writes, “should not uncommonly have an amplitude of the order of up to 500–1,000 ft.
openaire   +8 more sources

Comparison of the scintillation noise above different observatories measured with MASS instruments [PDF]

open access: yes, 2012
Scintillation noise is a major limitation of ground base photometric precision. An extensive dataset of stellar scintillation collected at 11 astronomical sites world-wide with MASS instruments was used to estimate the scintillation noise of large ...
A. Tokovinin   +32 more
core   +2 more sources

Rapid interstellar scintillation of PKS B1257-326: two-station pattern time delays and constraints on scattering and microarcsecond source structure [PDF]

open access: yes, 2006
We report measurements of time delays of up to 8 minutes in the centimeter wavelength variability patterns of the intra-hour scintillating quasar PKS 1257-326 as observed between the VLA and the ATCA on three separate epochs.
Anastasios K. Tzioumis   +7 more
core   +2 more sources

Remote sensing of tropospheric turbulence using GPS radio occultation [PDF]

open access: yes, 2016
Radio occultation (RO) measurements are sensitive to the small-scale irregularities in the atmosphere. In this study, we present a new technique to estimate tropospheric turbulence strength (namely, scintillation index) by analyzing RO amplitude ...
Ao, Chi, Shume, Esayas
core   +3 more sources

A First Comparison of the responses of a He4-based fast-neutron detector and a NE-213 liquid-scintillator reference detector [PDF]

open access: yes, 2015
A first comparison has been made between the pulse-shape discrimination characteristics of a novel $^{4}$He-based pressurized scintillation detector and a NE-213 liquid-scintillator reference detector using an Am/Be mixed-field neutron and gamma-ray ...
Annand, J. R. M.   +15 more
core   +2 more sources

New Measurement of the Relative Scintillation Efficiency of Xenon Nuclear Recoils Below 10 keV [PDF]

open access: yes, 2009
Liquid xenon is an important detection medium in direct dark matter experiments, which search for low-energy nuclear recoils produced by the elastic scattering of WIMPs with quarks.
A. Manalaysay   +15 more
core   +2 more sources

Study of scintillation in natural and synthetic quartz and methacrylate [PDF]

open access: yes, 2014
Samples from different materials typically used as optical windows or light guides in scintillation detectors were studied in a very low background environment, at the Canfranc Underground Laboratory, searching for scintillation. A positive result can be
Amare, J.   +17 more
core   +2 more sources

Home - About - Disclaimer - Privacy