detector-physics

Layer 1 — Physics6 concepts in this subtree

Instrumentation physics of particle and radiation detectors. Principles: ionisation (Bethe-Bloch), Cherenkov radiation threshold β>1/n, transition radiation X→Y at media interfaces, scintillation light yield in organic (stilbene,…

Calorimeter energy resolution: σ(E)/E = a/√E ⊕ b/E ⊕ c (stochastic ⊕ noise ⊕ constant)
Cherenkov radiation: threshold β > 1/n, opening angle cos θ_C = 1/(β·n)
Time-of-flight particle ID: Δt = (L/c)·(√(1+m₁²/p²) − √(1+m₂²/p²)) ≈ L m₁²/(2p²c) for m≪p
Silicon microstrip spatial resolution: σ = p/√12 (binary), p/(S/N) charge-division
Scintillator light yield: ~40 γ/keV NaI(Tl), ~10 γ/keV BGO, ~9 γ/keV plastic
Transition radiation (Ginzburg-Frank): ⟨E⟩ ∝ γ · ω_p·(Z_p·ω)/(3c); Lorentz-factor ID
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