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Cryopumping Molecular Sticking Speed Calculator

Easily calculate and compute cryopumping molecular sticking speed calculator with accurate equations, live formulas, and expert guidance.

Active condensing array surface area.

Gas capture condensation probability.

Target gas molar mass (N2 = 28, H2O = 18, Ar = 40, H2 = 2).

Gas temperature entering the cryopump inlet flange.

Calculated Result
4,501.41 L/s

Nominal Cryopump Pumping Speed

Nominal Cryopump Pumping Speed

4,501.41 L/s

Actual Pumping Speed Ls

4501.4137036281845

Pumping Speed M3 H

16205.089333061465

Ideal Specific Pumping Speed L S Cm2

11.768401839550808

Gas Molar Mass G Mol

28

4,501.41 — L/s

Calculation Breakdown

  1. Applied FormulaCalculates high-vacuum and ultra-high vacuum capture pumping speed based on the molecular sticking coefficient, surface temperature, and kinetic gas theory.S = 36.38 \cdot \alpha \cdot A \cdot \sqrt{\frac{T}{M}}

Cryopump Pumping Speed Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.01.1k2.3k3.4k4.5kNominal Cryopump Pumping Speed

What Is the Cryopumping Molecular Sticking Speed Calculator?

This tool computes cryopumping molecular sticking speed calculator with high precision arithmetic.

How Does the Cryopumping Molecular Sticking Speed Calculator Work?

Calculates high-vacuum and ultra-high vacuum capture pumping speed based on the molecular sticking coefficient, surface temperature, and kinetic gas theory.

Cryopumping Molecular Sticking Speed Calculator Formula & Variables

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

S=36.38⋅α⋅A⋅TMS = 36.38 \cdot \alpha \cdot A \cdot \sqrt{\frac{T}{M}}

Calculates high-vacuum and ultra-high vacuum capture pumping speed based on the molecular sticking coefficient, surface temperature, and kinetic gas theory.

How to Use the Cryopumping Molecular Sticking Speed Calculator

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

Step-by-Step Example Calculation

Cryopumping Molecular Sticking Speed Calculator Example

Input Values:

cryoPanelAreaCm2:450
stickingCoefficientAlpha:0.85
gasMolarMassGMol:28
gasTemperatureK:293
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required L/s.

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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