Alpha particle

There are many autoimmune diseases that affects a 5% of the population. This occurs when the immune system can not detect the difference between self and nonself. The human immune system protects the body from foreign virus’ and sends antibodies to kill the unknown virus. This disease then causes the body to produce antibodies that will attack against the body’s healthy cells. It proceeds to attack itself and it’s healthy body cells. The actual cause of autoimmune disease is unknown. One theory…

Chronic obstructive pulmonary disease, or COPD, is a term that covers several conditions. All of the conditions consist of blockage of air to and from the lungs and cause difficulty breathing. Emphysema, chronic bronchitis, and some types of asthma are the disease which fall under the COPD category. Figures from the World Health Organization say up to 50- 60 million people are diagnosed worldwide with COPD. This number is actually very low because a substantial number got undiagnosed. For…

decays also are a process which has an unstable atomic nucleus and which causes it to lose energy this because of radiation, for example there three main types of radioactive decay alpha, beta, and gamma particle. If a material has unstable nuclei it would be considered as radioactive. If an atom has emitted an alpha, or beta radiation it nucleus would change and become an nucleus of an different element. This would be because the number of protons in the nucleus would determine which element…

Alpha (α) Radiation The alpha radiations particles have 2 protons and 2 neutrons which are in a helium nucleus. As the alpha particles emit the helium nucleus the nucleus gives away the two protons and two neutrons. As a result of this the mass number will reduce by 4 and the atomic number will result in reducing by 2. This is known as alpha decay. One source of alpha radiation could be plutonium 239. The alpha particles have many characteristics. First of all the alpha radiation has a helium…

the net counts of the beta- emitting radionuclide, 137Cs as a function of pulse height voltage. Within Figure 5.8, the majority of the counts reside in the low voltage region, below 25 mV. It is possible to discriminate the between the different particle types by virtue of the pulse height distribution and establishing detection window threshold within the detection unit. As discussed earlier, it is possible to establish a lower threshold limit that eliminates pulses from background and noise.…

chemistry for his theory of the atomic structure. He discovered alpha and beta rays, that the atom could be split, and contributed to the Atomic Theory. He used the gold foil to see how to alpha and beta rays would bounce off off different atoms. Ernest was responsible for a remarkable series of discoveries in the fields of radioactivity and nuclear physics. Alpha and Beta rays set forth the laws of radioactive decay and identified alpha particles (helium nuclei). This would change science…

Beta particles are caused when a neutron in an unstable atom splits apart to form a proton/positron and an electron, the electron is referred to as a beta negative particle and the positron is refered to as a beta positive particle. The electron is shot from the nucleus and out of the atom. Beta particles have high penetration ability and low ionisation ability, beta particles can travel over one centimetre into a human body, they can travel…

Carlissa Jones Mrs. Moscona Science Fair Abstract 2 February 2018 Particles in the Mist In this project, there was a cloud chamber built to see radioactive decay particles with a radioactive source. In this project an ionizing smoke detector is being used as the radioactive source. The difference between an ionizing smoke detector and one that is not is that they tend to respond 30-90secs faster to fast flame fires than photoelectric fire alarms. . A cloud chamber is a sealed environment…

nuclear instability which can occur naturally or spontaneously. Alpha (α), beta (β), and gamma particles (γ) are the most known types of radioactive decay despite the fact that there are some more. Alpha decay, α, composes of two neutrons and two protons making alpha particles similar the nucleus of helium. Large components, for example, uranium, radium, and thorium have a greater number of neutrons than they have protons which aids alpha decay to happen. At the point when another atom is made…

radioactivity in particles exists in at least two forms. In the experiment tiny alpha particles were shot at a sheet of foil coated in ZnS which resulted in a small percentage went through the sheet and the rest were blocked/deflected. The percentage of particles that were able to go through the foil are now named 'Alpha Particles' and the ones that were blocked are called 'Beta Particles'. He was able to tell the difference between Alpha and Beta particles because he knew that when a particle…