RaSh-C
Radiation Shielding Calculator
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Quick Examples Library
Tap to reveal starter compounds, glasses and benchmark shielding materials.
Materials List (0)
No materials added yet.
Enter a formula and density, then click Add Material.
Material Composition
No materials added yet.
Composition details and elemental fractions will appear here after a material is added.
Energy Selection
Full NIST XCOM range: 1 keV – 100 GeV (Buildup valid only: 15 keV – 15 MeV)
Unit reminder: 15 MeV must be entered as 15000 keV if unit is keV.
Unit reminder: 15 MeV must be entered as 15000 keV if unit is keV.
Buildup Factor Settings
Zeq basis sets the ratio used for equivalent-Z solving. GP coefficient mode is separate: interpolated ANSI rows are standard, while nearest reference is mainly for table checks.
Parameters to Calculate
Core Attenuation
Effective Numbers & Buildup
Advanced Outputs
Interaction Components
Supplementary Quantities
Confirm citation note before calculation or export.
Calculation Summary
Add materials, choose outputs, then calculate.
Analysis Workspace
Calculation Results
No results yet.
Choose outputs in Energy & Parameters, then click Calculate.
Layer Stack Builder
Multilayer Shield Modeling
Three calculation modes
Build one ordered stack here, then choose a mode below. Broad-Beam uses its own scoped controls in the same workspace.
Ordered Stack
Stack Summary
No layers yet.
Add at least one layer to build a photon attenuation stack.
Mode Selection
Attenuation / Transmission
Mode Controls
Use the shared energy selection, or switch to a local single value or list.
Mode
Approximate buildup uses the runtime depth grid and marks unsupported rows as N/A.
Scope. Attenuation / Transmission is narrow-beam only. Approximate Buildup is an order-aware GP approximation. Broad-Beam is a scoped 511 keV family for Lead, Concrete, and Iron.
Confirm citation note before multilayer calculation or export.
Build a stack, choose a mode, then calculate.
No multilayer results yet.
Build a stack, choose a mode, then calculate.
Layer-Level Runtime Output
Per-Layer Contributions
Layer order is preserved. Cumulative attenuation and cumulative transmission follow the exact stack sequence entered above.
Shielding Depth Analysis
EBF & EABF vs Energy
Valid in 15 keV – 15 MeV
No buildup matrix yet.
Run Calculate to populate the depth grid.
Neutron Summary
Effective Removal Cross Section (ERCS)
Unsupported entries stay N/A
No ERCS summary yet.
Calculate at least one material first. This table will then show the material-level neutron removal breakdown.
NIST XCOM Element Database
| Z | Symbol | Name | A | ρ (g/cm³) | MAC@100keV | MAC@500keV | MAC@1MeV |
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Administration
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Administration
Users
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Calculation History
| Time | User | Type | Materials | Energies |
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