Can we find muons in cosmic rays?
Muons in the atmosphere, a component of cosmic rays. Atmospheric muons are an essential component of cosmic ray showers. When a high energy primary particle coming from space collides with a nucleus of the upper atmosphere, it generates a spray of particles which later interact in their turn.
What is the cosmic ray spectrum?
The energy spectrum of cosmic rays, which is how the rate changes with increasing energy, has been measured by many detectors, including IceTop. Extragalactic sources are expected to be more abundant as energy increases and to be the only ones responsible for very high energy cosmic rays.
How do cosmic rays produce muons?
Muons are everywhere Muons have the same negative charge as electrons but 200 times the mass. They are made when high-energy particles called cosmic rays slam into atoms in Earth’s atmosphere. Travelling at close to the speed of light, muons shower Earth from all angles.
What is the wavelength of a cosmic ray?
In cosmology, the cosmic microwave background radiation is a form of electromagnetic radiation discovered in 1965 that fills the entire universe. It has a thermal 2.725 kelvin black body spectrum which peaks in the microwave range at a frequency of 160.4 GHz, corresponding to a wavelength of 1.9 mm.
Why can we detect muons?
Because muons can penetrate several metres of iron without interacting, unlike most particles they are not stopped by any of CMS’s calorimeters. Therefore, chambers to detect muons are placed at the very edge of the experiment where they are the only particles likely to register a signal.
Where can we find muons?
upper atmosphere
Muons are generated in the Earth’s upper atmosphere by cosmic rays (high energy protons) colliding with atomic nuclei of molecules in the air. Muons can also be produced in a two-step process at large research facilities.
What blocks cosmic rays?
The Earth’s atmosphere blocks most cosmic rays. Curiously metal layers can actually make the radiation from cosmic rays worse. When a high energy protons collide with metal nuclei they can be transformed into unstable isotopes which then undergo radioactive decay.
How is a muon produced?
Muons are generated in the Earth’s upper atmosphere by cosmic rays (high energy protons) colliding with atomic nuclei of molecules in the air. This high energy interaction between the incoming protons and the target protons or neutrons produces particles known as pions (π).
What is the function of muons?
Muons can help detect dangerous nuclear material and see into damaged nuclear power plants. Scientists use muons for archeological purposes to peer inside large, dense objects such as the pyramids in Egypt.
What is XRAY frequency?
X-ray, electromagnetic radiation of extremely short wavelength and high frequency, with wavelengths ranging from about 10−8 to 10−12 metre and corresponding frequencies from about 1016 to 1020 hertz (Hz).