0
Backscattering refers to the reflection of a portion of the energy from a wave or particle back in the direction from which it came. It is commonly observed in radar systems and can provide valuable information about the target being surveyed. Backscattering is utilized in various applications, including remote sensing and medical imaging.
Add your answer:
Earn +20 pts
What has the author Guang-tsai Lei written?
Guang-tsai Lei has written: 'Investigation of radar backscattering from second-year sea ice' -- subject(s): Radar, Backscattering
What has the author M B Lewis written?
M. B Lewis has written: 'Analysis of a nuclear backscattering and reaction data by the method of convolution integrals' -- subject(s): Chemical reactions, Convolutions (Mathematics), Backscattering
What is the link between backscattering and rainbow?
Rainbows are caused by backscatter. If the sun is out, and it is raining, look in the direction opposite from the sun, and you may see a rainbow.
What has the author W C Neely written?
W. C. Neely has written: 'X-ray photoelectron spectroscopy (XPS), Rutherford back scattering (RBS) studies ..' -- subject(s): Aluminun alloys, Auger spectroscopy, Backscattering, Electron transitions, Photoelectron spectroscopy, X ray spectroscopy
What has the author Willard J Pierson written?
Willard J Pierson has written: 'A Monte Carlo comparison of the recovery of winds near upwind and downwind from the SASS-1 model function by means of the sum of squares algorithm and a maximum likelihood estimator' -- subject(s): Backscattering, Scattering (Physics)
Which particular observation of Rutherford do you think him to believe that the atoms is mostly empty space and that its mass is concentrrated in apositve nucleus?
The fact that the vast majority of the alpha particles got straight through led Rutherford to propose that the atom was composed primarily of empty space. The fact that backscattering occurred in 1 in 8000 alpha particles indicated that there was a small massive positively charged nucleus in the centre of the atom.
What has the author Dimitri A Bogazianos written?
D. W. Bogdanoff has written: 'CFD modelling of bore erosion in two-stage light gas guns' -- subject(s): Computational fluid dynamics, Gas pressure, Powder (Particles), Solar radiation, Igniters, Backscattering
Why is beta radiation used to measure thickness?
Beta radiation is used to measure thickness because it has low penetration power, allowing it to measure thin materials without passing through them. This makes it ideal for applications where precise measurement of thin materials is required, such as in the manufacturing industry. Additionally, beta radiation can easily be detected and measured, providing fast and accurate results.
What is the difference between Bohr's model of the atom and Rutherford's model?
Rutherford showed that the atom consisted of a very dense and very small core (the nucleus), and that the rest was mostly empty space (the electron cloud). By using a backscattering experiment, he watched how alpha particles passed through a very thin gold foil. He found that most of the alpha passed right through the foil with no change in their original direction. However some did change direction, and the ones that did, changed directly significantly. In other words, most of the particles passed through the atoms like nothing was there, but a few hit something as if they hit a brick wall!Bohr's model of the atom didn't address the question of structure in this way. The Bohr model was used to explain the energy levels of atoms and how atoms absorb and emit light. See the Related Questions to the left for a more complete description of the Bohr model of the atom.The Bohr model said electrons travel in fixed, circular orbits about the nucleus. We know now that we cannot predict the exact location of an electron in any point in time, and that these electrons exist in "orbitals", and don't travel in circular paths around the nucleus. It is explained by the Heisenberg Uncertainty Principle. The new atomic theory says that electrons are both waves and particles. It is said that just "looking" at an electron (figuratively) would change its position in the atom.
What would world weather patterns be like if the amount of carbon dioxide doubled?
We can't say with any great certainty what the weather patterns will be like, but current studies using a variety of methods, suggest that if the amount of Carbon Dioxide (CO2) in the atmosphere doubles (that is, from 280 ppm to 560 ppm) the temperature rise could be anywhere between 2 and 5°C. Best estimates are pointing to a rise of 3°C with a likely maximum of 4.5°C. The amount of this rise is what is known as 'climate sensitivity'. (Scientists also say that anything over two degrees of rise will be catastrophic!)Temperature drives climate. Changes in temperature cause changes in pressure, which means changes in winds, which means changes to rainfall patterns. And higher temperatures mean more changes.Current predictions for climate change include more severe and more frequent weather events like cyclones, floods, tornadoes and droughts.Another View:Some climate experts believe that there is a saturation point for carbon dioxide levels and that an increase above this point will cause little, if any, increase in temperatures. Should CO2 levels double, the peer reviewed paper by Hermann Harde (2011) points out that his research indicates that the IPCC is seven times higher than his data suggests.He claims an increase of: 0.41°C for the tropical zone, 0.40°C for the moderate zones and CS = 0.92°C for the polar zones. The weighted average over all regions as the global climate sensitivity is found to be 0.45°C with an estimated uncertainty of 30%, which mostly results from the lack of more precise data for the convection between the ground and atmosphere as well as the atmospheric backscattering.
If Rutherford made bombarded aluminum foil with alpha particles instead of gold foil what observations would he have used?
If Rutherford had bombarded aluminum foil with alpha particles instead of gold foil, he would have observed that most of the alpha particles would pass through the foil with minimal deflection since aluminum is a lighter element compared to gold. Some of the alpha particles may undergo slight scattering or deflection due to interactions with the atomic nuclei in the aluminum foil, but there would be no significant backscattering as seen in the gold foil experiment.
Briefly describe Rutherford's experiment?
In Rutherford's experiment, alpha particles were aimed at a thin sheet of gold foil. Most of the alpha particles passed straight through, but some were deflected at large angles. This led to the conclusion that atoms have a small, positively charged nucleus at their center.
