Erstellt von alex.examtime9373
vor mehr als 10 Jahre
|
||
Radioactivity:Spontaneous emission of radiation due to the natural disintegration of an unstable nucleus
RadiationEmission of particles of matter or photons of energy
Types of RadiationAlpha (α)Beta (β)Gamma (ɣ)
Deflection of radiation in electric fields:α radiation is positively chargedβ radiation is negatively chargedɣ radiation has no electric charge
Deflection of radiation in magnetic fields:α and β particles travel in a circular motion in a magnetic fieldɣ radiation travels in a straight line (as it has no charge)
IonisationThe process by which a neutral atom or a molecule acquires a negative or positive charge by gaining or losing electronsα particles are the most ionising, whereas ɣ particles have the least ionising effect
PenetrationThe distance the radiation travels through a mediumα particles are the least penetrating, whereas ɣ particles are the most penetrating
Radioisotope:Unstable isotope of an element that disintegrates spontaneously, emitting radiationUses of radioisotopes: Medical imaging Medical therapy Food irradiation Agriculture Carbon dating Smoke detectors
Detection of Nuclear RadiationGeiger Muller tubeSolid state detector
New Page
Möchten Sie kostenlos Ihre eigenen Notizen mit GoConqr erstellen? Mehr erfahren.