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Nuclear & Particle Physics

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Nuclear & Particle Physics

Cherenkov Radiation

The characteristic blue optical shockwave radiation emitted when a charged particle travels through a dielectric medium faster than the…

cos θ = c / (n v) = 1 / (n β) Blue Light Photons (~400 nm)
Nuclear & Particle Physics

Cloud Chamber

A historic particle detector consisting of a sealed chamber containing supersaturated vapor where passing ionizing radiation forms visible…

Condensation droplets forming along ion trails Visual Particle Tracks
Nuclear & Particle Physics

Control Rods

Movable rods composed of high-neutron-capture elements (like cadmium, boron, or hafnium) inserted into a nuclear reactor core to regulate…

Neutron Capture Reaction: ¹⁰B + n → ⁷Li + α Reactivity Control (pcm)
Nuclear & Particle Physics

Cosmic Rays

High-energy relativistic atomic nuclei and subatomic particles originating from outer space that strike Earth's atmosphere.

Primary Energies up to 10²⁰ eV (Extreme Relativistic Protons) eV or GeV (Particle Energy)
Nuclear & Particle Physics

Coupling Constant

A dimensionless number quantifying the relative interaction strength between particles or fields in a fundamental force interaction.

α_EM = e² / (4π ε₀ ℏ c) ≈ 1 / 137, α_s(Q²) Dimensionless Parameter
Nuclear & Particle Physics

Critical Mass

The minimum mass of fissile material required to sustain a continuous self-sustaining nuclear chain reaction.

Neutron Leakage Rate = Neutron Production Rate (k = 1) kg (Kilograms)
Nuclear & Particle Physics

Cyclotron (Particle Physics)

A circular particle accelerator using a perpendicular magnetic field to bend charged particles into spiral paths while high-frequency AC…

f_c = (q B) / (2π m), KE_max = (q² B² R²) / (2 m) MeV (Beam Energy)