Skip to main content
CalcPro

Tokamak Divertor Scrape-Off Layer (SOL) Heat Flux Width (Eich Scaling) Calculator

Easily calculate and compute tokamak divertor scrape-off layer (sol) heat flux width (eich scaling) calculator with accurate equations, live formulas, and expert guidance.

Poloidal field at outer midplane separatrix.

ITER steady-state exhaust power ~100 MW.

Calculated Result
0.51 mm

SOL Width (λ_q)

SOL Width (λ_q)

0.51 mm

Heat Flux Decay Length Lambda Q Mm

0.51

Wetted Strike Area M2

3.8

Peak Unmitigated Target Heat Flux Mw Per M2

193372

Divertor Regime Assessment

DETACHMENT MANDATORY: Unmitigated target heat flux exceeds engineering limit of water-cooled tungsten monoblocks (10 MW/m²); requires neon/nitrogen radiative seeding

0.51 — mm

Calculation Breakdown

  1. Applied FormulaCalculates the Scrape-Off Layer (SOL) heat flux decay width lambda_q using the empirical Eich multi-machine scaling to size divertor thermal exhaustion.\lambda_q = 0.63 \, B_{\text{pol}}^{-1.19} \text{ (mm)}, \quad q_\parallel = \frac{P_{\text{sep}}}{2\pi R_0 \lambda_q}

Divertor SOL Heat Flux Width Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0SOL Width (λ_q)

What Is the Tokamak Divertor Scrape-Off Layer (SOL) Heat Flux Width (Eich Scaling) Calculator?

This tool computes tokamak divertor scrape-off layer (sol) heat flux width (eich scaling) calculator with high precision arithmetic.

How Does the Tokamak Divertor Scrape-Off Layer (SOL) Heat Flux Width (Eich Scaling) Calculator Work?

Calculates the Scrape-Off Layer (SOL) heat flux decay width lambda_q using the empirical Eich multi-machine scaling to size divertor thermal exhaustion.

Tokamak Divertor Scrape-Off Layer (SOL) Heat Flux Width (Eich Scaling) Calculator Formula & Variables

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

λq=0.63 Bpol−1.19 (mm),q∥=Psep2πR0λq\lambda_q = 0.63 \, B_{\text{pol}}^{-1.19} \text{ (mm)}, \quad q_\parallel = \frac{P_{\text{sep}}}{2\pi R_0 \lambda_q}

Calculates the Scrape-Off Layer (SOL) heat flux decay width lambda_q using the empirical Eich multi-machine scaling to size divertor thermal exhaustion.

How to Use the Tokamak Divertor Scrape-Off Layer (SOL) Heat Flux Width (Eich Scaling) Calculator

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

Step-by-Step Example Calculation

Tokamak Divertor Scrape-Off Layer (SOL) Heat Flux Width (Eich Scaling) Calculator Example

Input Values:

poloidalMagneticFieldTesla:1.2
totalExhaustPowerMw:100
majorRadiusMeters:6.2
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required mm.

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.

\n

Related Calculators

Explore more tools and calculators in Technology Calculators

Length Converter

Convert length and distance between metric and imperial units including meters, feet, inches, kilometers, miles, and yards with exact SI definitions.

Percentage Calculator

Calculate percentages: what % X is of Y, P% of X, % change, discount price, and percentage points.

Temperature Converter

Convert temperatures between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R) with step-by-step thermodynamic formulas.

Wien Bridge Oscillator Frequency & Barkhausen Stability Calculator

Calculates the oscillation frequency f₀, non-inverting op-amp voltage gain A_v, and verifies Barkhausen stability criterion for Wien bridge circuits.

Schmitt Trigger Inverting Comparator Hysteresis Thresholds Calculator

Calculates the upper trip point (V_TP), lower trip point (V_TN), and hysteresis voltage band V_H for inverting op-amp Schmitt trigger circuits.

Active Sallen-Key 2nd-Order Low-Pass Filter Cutoff & Q Calculator

Calculates the corner cutoff frequency f_c, quality factor Q, damping factor ζ, and response shape (Butterworth, Bessel, Chebyshev) for Sallen-Key low-pass filters.