Beta Particles :: essays research papers

AimI go out investigate how the field persuasiveness varies the deflection of Beta Particles.Preliminary WorkI started my preliminary survive because, when I started my measurements using 2 coils used in experiments to deflect negatrons from and electron gun. While testing for the deflection of genus Beta particles, I found that important radioactivity was scattered in a very large cone, I skunk not get any readings with amount of beta radiation scattering.So I would have to construct some type of screen for this investigation, this is so I can measure the deflection more easily. The run at which the beta particles are being scattered is 48o.Deciding on the Type of ShieldingI will test for the outgo shielding. The best properties of the shield will be it can be malleable to abidance distinct shapes and can be punctured, can stop radiation at a small thickness.EquipmentStrontium 90 beta pedigreeGM tube + counterDifferent thickness of different metalsClamps, bosses and cl amp weather to hold the source and the framework being tested.Method1. Set-up equipment as in the diagram2. Record the thickness and the material being used.3. Record 5 readings of the radiation count, and record them in a table4. Replace material being tested with different material or a different sized material.5. Repeat steps 2 to 4 as required.ResultsThe soil radiation reading is 2, 4, 6, 4, 5, 2. The average count is 3.8 (1dp).ConclusionThis shows that aluminium gelt radiation at 3.5 mm, this would be difficult to use because, this thickness of aluminium is not malleable and the aluminium is not soft enough to puncture. become can stop radiation at very thin thickness, withal lead is very malleable and is soft enough to puncture. I will use Lead shield at 0.6mm thick, since it is the most abundant thickness useable and it is the easiest to form to any shape I want.Deciding how the shielding can be used.I want to have a tight balance beam of beta particles in this invest igation, so I will use my association on what would be the best way to shield the source.An unshielded sourceThe source is unshielded and has beta particles spreading out. Angle Theta is the angle which the beta particles are scattered through. The path of the beta particles is not a great line, but a curve because the beta particle are deflected by the moles in the air. The points A B are the furthest points where beta confine is detected.