Xenon-135 Reactor Poisoning Calculator
Calculate Iodine-135 and Xenon-135 decay transients, post-shutdown "iodine pit" peak reactivity deficit, and minimum deadtime before reactor restart.
Operating Flux & Shutdown Transient
Full power steady-state flux
Peak pit occurs around 9–11 hrs
Control rod pull worth available
> 50 hrs reaches equilibrium
Xenon Reactivity Deficit & Deadtime
Current Xenon Deficit (ρ_xe)
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Peak "Iodine Pit" Deficit
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Equilibrium Worth
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Deadtime Window
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Xe-135 σ_a Cross Sec
2.65 × 10⁶ b
Xenon Poisoning & Restart Assessment
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