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Reactor Samarium-149 Equilibrium Fission Product Poisoning Calculator

Easily calculate and compute reactor samarium-149 equilibrium fission product poisoning calculator with accurate equations, live formulas, and expert guidance.

U-235 fission yield of Pm-149 ≈ 1.07%.

Core macroscopic fission cross section.

Core macroscopic absorption.

Calculated Result
892 pcm

Sm-149 Worth

Sm-149 Worth

892 pcm

Equilibrium Samarium Poisoning Pcm

892

Reactivity Worth Fraction

-0.0089

Sm149 Uniqueness Property

Unlike Xenon-135, Sm-149 is a stable non-radioactive isotope; it never decays after shutdown and remains permanently in the core

892 — pcm

Calculation Breakdown

  1. Applied FormulaCalculates the equilibrium fission product poisoning reactivity worth of Samarium-149, which is uniquely independent of reactor operating neutron flux level.\Delta\rho_{\text{Sm}} = -\frac{\gamma_{\text{Pm}} \Sigma_f}{\Sigma_a}

Samarium-149 Poisoning Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.0223446669892Sm-149 Worth

What Is the Reactor Samarium-149 Equilibrium Fission Product Poisoning Calculator?

This tool computes reactor samarium-149 equilibrium fission product poisoning calculator with high precision arithmetic.

How Does the Reactor Samarium-149 Equilibrium Fission Product Poisoning Calculator Work?

Calculates the equilibrium fission product poisoning reactivity worth of Samarium-149, which is uniquely independent of reactor operating neutron flux level.

Reactor Samarium-149 Equilibrium Fission Product Poisoning Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

ΔρSm=−γPmΣfΣa\Delta\rho_{\text{Sm}} = -\frac{\gamma_{\text{Pm}} \Sigma_f}{\Sigma_a}

Calculates the equilibrium fission product poisoning reactivity worth of Samarium-149, which is uniquely independent of reactor operating neutron flux level.

How to Use the Reactor Samarium-149 Equilibrium Fission Product Poisoning Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Reactor Samarium-149 Equilibrium Fission Product Poisoning Calculator Example

Input Values:

promethiumYieldFraction:0.0107
fuelMacroscopicFissionSigmaFPerCm:0.1
fuelThermalAbsorptionSigmaAPerCm:0.12
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required pcm.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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