Now playing · 03 Nuclear

Coincidence window width

t_flight = 2.335 ns

tflight=D/c,τmin⁡≈2 tflight+k FWHMt_{\mathrm{flight}}=D/c,\quad \tau_{\min}\approx 2\,t_{\mathrm{flight}}+k\,\mathrm{FWHM}

τ ≥ 2 D / c plus timing FWHM. A 70 cm ring needs ≥ 4.7 ns of flight plus jitter.

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