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Neutron Radiation

1,423 bytes added, 14:58, 6 April 2019
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==Key Stage 4==
===Meaning===
[[Neutron Radiation|neutron radiation]] is a type of [[Non-ionising Ionising Radiation|non-ionising radiation]] [[emit]]ted from the [[Atomic Nucleus|nucleus]] of an [[Unstable Isotope|unstable isotope]].
===About Neutron Radiation===
{| class="wikitable"
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|[[File:NeutronParticleChargeNeutronCharge.png|center|200px]]
| style="height:20px; width:400px; text-align:left;" |Scientist were able to determine the [[Electrical Charge|charge]] of a '''neutron''' by sending it between two [[Electrical Charge|electrically charged]] plates and observing its path.
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|[[File:NeutronPenetrationAir.png|center|200px]]
| style="height:20px; width:400px; text-align:left;" |'''[[Alpha Particle|Alpha particlesNeutron]] s''' have a mean lifetime of around 15 minutes before they decay, so can travel around 5cm through several hundred [[airkilometre]] (s depending on their [[STPvelocity]]) before they [[Radioactive Decay|decay]] into a [[collidingproton]] with and a [[ionisingBeta Particle|beta particle]] while [[atomemit]]s or ting a [[moleculegamma-ray]]s.
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{| class="wikitable"
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|[[File:AlphaPenetrationNeutronPenetration.png|center|200px]]| style="height:20px; width:400px; text-align:left;" |[[Alpha ParticleNeutron Radiation|Alpha particlesNeutron radiation]] can be stopped 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 a thin sheet the [[Atomic Nucleus|nucleus]] of paperan [[atom]].
|}
====Ionising Potential====
: With a [[Electrical Charge|charge]] of +2, '''α-particles''' are 0 and almost no effect on the most [[Ionising Radiation|ionising]] of the three [[Ionising Radiation|ionising radiations]]. It is capable of removing two [[electron]]s from a single [[atomElectron Orbital|orbiting]] or [[moleculeAtomic Nucleus|nuclei]] or removing 1 [[electron]] from two , '''[[atomneutron]]s or ''' are not directly [[moleculeIonising Radiation|ionising]]s.
{| class="wikitable"
| style="height:20px; width:600px; text-align:left;" |[[Neutron Radiation|Neutron radiation]] is referred to as indirectly [[Ionising Radiation|ionising]] because it does not affect the [[electron]]s [[Electron Orbital|orbiting]] an [[atom]] but it can cause the release of directly [[Ionising Radiation|ionising radiation]] in two ways:
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|[[File:AlphaIoniseNeutronIonise.png|center|600px]]
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| style="height:20px; width:600px; text-align:left;" |When an It can be [[Absorb (Physics)|absorbed]] by a [[Alpha ParticleAtomic Nucleus|α-particlenucleus]] interacts with an making it [[atomUnstable Isotope|unstable]] the and causing it to release a [[Alpha Particlegamma-ray]].|α-particle|[[File:NeutronPenetrationAir.png|center|600px]] |-| style="height:20px; width:600px; text-align:left;" |It can remove one or two [[electronRadioactive Decay|decay]] into a [[proton]] and a [[Beta Particle|beta particle]]s to '''ionise''' the releasing a [[atomgamma-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"
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|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>
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| 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.'''
When 8 = A + 1 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>
|}