Open main menu

Changes

Neutron Radiation

679 bytes added, 14:58, 6 April 2019
no edit summary
|-
|[[File:NeutronPenetration.png|center|200px]]
| style="height:20px; width:400px; text-align:left;" |[[Neutron Radiation|Neutron radiation]] can penetrate paper and sheets of [[metal]] foil but cannot penetrate more than a few cm of [[Lead]] or a [[metre]] of [[concrete]] before they are captured by the [[Atomic Nucleus|nucleus]] of an [[atom]].
|}
|[[File:NeutronPenetrationAir.png|center|600px]]
|-
| style="height:20px; width:600px; text-align:left;" |It can [[Radioactive Decay|decay]] into a [[proton]] and a [[Beta Particle|beta particle]] releasing a [[gamma-ray]].
|}
===Precautions===
: [[Alpha ParticleNeutron Radiation|Alpha Neutron radiation]] is the most not directly [[Ionising Radiation|ionising]] but the least is as [[Penetration Depth|penetrating]]as [[gamma-ray]]s.: [[Alpha ParticleNeutron Radiation|AlphaNeutron]] sources are kept inside a block of [[lead]] with a hole that only allows the '''[[Alpha Particle|alpha particlesneutron]] s''' out in one direction.: Outside the body an [[organismNeutron Radiation|Neutron radiation]] can is too dangerous to handle directly so it must be protected done from behind a thick [[Alpha Particle|alpha radiationlead]] by keeping a distance greater than 5cm or by covering any bare skinscreen.: Inside an [[organism]] [[Alpha ParticleNeutron Radiation|alpha particleNeutron]]s are the most dangerous as they are highly [[Ionising Radiation|ionisingemission]] and there is nothing inside an [[organism]] to block them usually stimulated by bombarding [[Ionising RadiationAtomic Nucleus|ionisingnuclei]] biological with other [[moleculeparticle]]s like [[DNA]]. Every precaution must be taken not to The [[Radioactive ContaminationNeutron Radiation|contaminateneutron]] the skin with the [[Alpha Particle|alpha]] source in case it finds its way into the body through sources have a cut or the mouth.: When handling a source of very short [[Beta ParticleHalf Life|beta radiationhalf life]] the precautions which should so they do not need to be taken are::*Wear gloves - to prevent [[Radioactive Contamination|contamination]].:*Use tongs to handle the source, never touch it - to prevent [[Radioactive Contamination|contamination]].:*Aim the source away from any living [[organism]] - to prevent [[irradiation]].:*Store the source kept in a sealed container - to prevent [[Radioactive Contamination|contaminationLead]] and containers for long before they are no longer dangerously [[irradiationradioactive]].
===Applications===
: [[Neutron]]s are used to stimulate [[Nuclear Fission|nuclear fission]] in both [[Nuclear Reactor|nuclear reactors]] and [[Nuclear Bomb|nuclear bombs]].
 
===Equation===
 
<math>{}_Z^AX \rightarrow {}_{Z}^{A-1}Y + {}_0^1n</math>
 
<math>{}_{8}^{18}O \rightarrow {}_{8}^{17}O + {}_0^1n</math>
 
====Example Calculations====
{| class="wikitable"
|-
|style="height:20px; width:300px; text-align:center;" |'''Find the [[File:SmokeDetectorelement]] 'X' and calculate its [[Relative Atomic Mass|relative atomic mass]] 'A' and its [[Relative Atomic Charge|relative atomic charge]] 'Z'.png''' <math>{}_{3}^{8}Li \rightarrow {}_{Z}^{A}X + {}_0^1n</math>|style="height:20px; width:300px; text-align:center;" |600px'''Find the [[element]]'X' and calculate its [[Relative Atomic Mass|relative atomic mass]] 'A' and its [[Relative Atomic Charge|relative atomic charge]] 'Z'.''' <math>{}_{Z}^{A}X \rightarrow {}_{10}^{26}Ne + {}_0^1n</math>
|-
| style="height:20px; width:600px300px; text-align:left;" |In a smoke detector '''1. Calculate the [[Alpha ParticleRelative Atomic Mass|alpha particles]] are released between two [[electroderelative atomic mass]]sby looking at the top row of numbers.''' 8 = A + 1
When A = 7| style="height:20px; width:300px; text-align:left;" |'''1. Calculate the [[Alpha ParticleRelative Atomic Mass|alpha particlesrelative atomic mass]] by looking at the top row of numbers.''' A = 26 + 1 A = 27|-| style="height:20px; width:300px; text-align:left;" |'''2. Calculate the [[Ionising RadiationRelative Atomic Charge|ioniserelative atomic charge]] by looking at the [[molecule]]s in bottom row of numbers.''' 3 = Z + 0 Z = 3| style="height:20px; width:300px; text-align:left;" |'''2. Calculate the [[airRelative Atomic Charge|relative atomic charge]] by looking at the [[ion]]bottom row of numbers.''' Z = 10 + 0 Z = 10|-| style="height:20px; width:300px; text-align:left;" |'''3. It's move between the same [[electrodeelement]]s and but a [[Electrical Current|current]] flows in the [[circuit]]different isotope.'''
When smoke gets between <math>{}_{3}^{7}Li</math>| style="height:20px; width:300px; text-align:left;" |'''3. Since the [[electrodeRelative Atomic Charge|relative atomic charge]]s is the same as the [[ionAtomic Number|atomic number]]s become stuck in large look up the [[particleelement]]s of [[soot]] preventing them from moving. This stops on the [[Electrical CurrentPeriodic Table|current]] in the [[circuitperiodic table]].'''
The [[ammeter]] in the [[circuit]] is connected to an alarm which goes off when there is no [[Electrical Current|current]].<math>{}_{10}^{27}Ne</math>
|}