1. Basic Concepts Flashcards
What is the cross-section?
Probability that a given atomic nucleus or subatomic particle will exhibit a specific reaction (for example, absorption, scattering, or fission) in relation to a particular species of incident particle.
What is Flux?
The rate per unit area at which particles cross a small surface at rest with respect to target.
Distance is measured in “x” which is 10^-y?
Fermis, 10^-15m
Radius of proton?
0.8fm
Range of strong nuclear forcce between protons and neutrons
1-2fm
Range of weak force
10^-3fm
Radius of atom
10^5fm / 1 Ångström
Area is measured in “x” which is 10^-ym2?
barn, 1b=10^-28
Electron volt is defined how?
The amount of energy it requires to transport an electron over a potential difference of 1V
Protontal & Neutrontal förkortning?
Z och N §
Atomkärnan hålls samman av vilken kraft?
Den starka (kärn)kraften
Vad är den starka kraften?
En komplicerad rest av den starka växelverkan som beskrivs av kvantkromodynamik
En Nukleid med magiskt antal protoner och/eller neutroner är?
Mycket stabilare än sina grannar.
En kedja Nukleider med lika antal protoner
Isotop kedja
En kedja Nukleider med lika antal neutroner
Isoton kedja
