Therefore they give us information about the interior of the sun. The neutrinos which also take close to this time to reach us from the sun, known as solar neutrinos, were produced in the core of the sun. The visible light that reaches us from the sun is emitted from the surface of the sun. Hence basic sciences research is needed to understand the properties of particles before they can be applied. Today, a world without electronics cannot be imagined. Some immediately possible future applications of neutrino scienceġ00 years ago, when the electron was discovered, it had no foreseeable uses.
It is estimated to build one module per year, after completing the civil construction which can take up to 3-4 years. This will be like a 2-inch hole made in a 10 foot wall.Įstimated time to construct the experiment Tunnel will be 7.5 m X 7.5 m cross section. This is used to infer the properties of the neutrino which caused the pulses.ĭimensions of the cavern – The cavern will be 130 m length X 26 m wide X 35 m height. By piecing together the pulses set off in successive glass plates, the path followed by the muon is tracked. This charge is picked up by sensors in the glass RPCs which set off an electrical pulse, to be measured by the electronics. The muon neutrino interacts with the iron to produce a muon which is electrically charged. The ICAl consists of 150 layers of alternating iron slabs and glass detectors called Resistive plate chambers. How will the Iron calorimeter detect the neutrinos? After placing inside the rock, it would detect only 300 muon events per hour and about 10 neutrino events per day of which 3 will be the desired muon neutrino events. If the detector was placed at the surface of the mountain, it would pick up billions of cosmic ray muons every hour and about 10 neutrino events per day. Why does the experiment have to be underground? The filtered set consist of a part of the incident cosmic ray protons and pions and practically all the neutrinos. The mountain consists of 1km of solid rock that filters away most of the charged particles from the cosmic rays. These collide with atmospheric molecules such as Nitrogen to give off pions and muons which further decay to produce neutrinos. Neutrino project: no clearance from villagers How are atmospheric neutrinos produced in nature?Ītmospheric neutrinos are produced from cosmic rays which consist of protons and heavy nuclei. Solar neutrinos have much lower energy than the detector can detect. The India-based Neutrino Observatory (INO) will study atmospheric neutrinos only. They studied Solar neutrinos, atmospheric neutrinos and man-made neutrinos. Neutrino oscillation was established by Sudbury Neutrino Observatory, Canada, and Super-Kamiokande experiment in Japan. This process is called neutrino oscillation and is an unusual quantum phenomenon.
They can change from one flavor to another as they travel. Neutrinos come in three types or “flavours” – electron neutrino, tau neutrino and muon neutrino.
Neutrinos come from the sun (solar neutrinos) and other stars, cosmic rays that come from beyond the solar system, and from the Big Bang from which our Universe originated. So weakly that every second trillions of neutrinos fall on us and pass through our bodies unnoticed. It interacts very weakly with other matter particles. Neutrino has a very tiny mass, no charge and spin half.
Such particles are also found to exist in nature. The neutrino is also a tiny elementary particle, but it is not part of the atom. Proton, neutron, and electron are tiny particles that make up atoms. Here we discuss how are neutrinos produced, why does INO need a mountain and so on.
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