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Ultra-High Vacuum Outgassing Rate & Ultimate Base Pressure Calculator

Easily calculate and compute ultra-high vacuum outgassing rate & ultimate base pressure calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
0 mbar

Ultimate Base Pressure P_base

Ultimate Base Pressure P_base

0 mbar

Ultimate Base Pressure Mbar

8e-10

Ultimate Base Pressure Torr

6e-10

Total Gas Load Mbar L Per S

2.4e-7

Surface Treatment

Mild Bakeout (150°C, 24 hours)

0 — mbar

Calculation Breakdown

  1. Applied FormulaCalculates the ultimate equilibrium vacuum base pressure achieved in stainless steel or aluminum UHV chambers from material surface outgassing and effective pumping speed.P_{\text{base}} = \frac{q_n(t) A}{S_{\text{eff}}}, \quad q(t) = q_0 \left(\frac{t_0}{t}\right)^\alpha

UHV Base Pressure & Outgassing Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0Ultimate Base Pressure P_base

What Is the Ultra-High Vacuum Outgassing Rate & Ultimate Base Pressure Calculator?

This tool computes ultra-high vacuum outgassing rate & ultimate base pressure calculator with high precision arithmetic.

How Does the Ultra-High Vacuum Outgassing Rate & Ultimate Base Pressure Calculator Work?

Calculates the ultimate equilibrium vacuum base pressure achieved in stainless steel or aluminum UHV chambers from material surface outgassing and effective pumping speed.

Ultra-High Vacuum Outgassing Rate & Ultimate Base Pressure Calculator Formula & Variables

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

Pbase=qn(t)ASeff,q(t)=q0(t0t)αP_{\text{base}} = \frac{q_n(t) A}{S_{\text{eff}}}, \quad q(t) = q_0 \left(\frac{t_0}{t}\right)^\alpha

Calculates the ultimate equilibrium vacuum base pressure achieved in stainless steel or aluminum UHV chambers from material surface outgassing and effective pumping speed.

How to Use the Ultra-High Vacuum Outgassing Rate & Ultimate Base Pressure Calculator

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

Step-by-Step Example Calculation

Ultra-High Vacuum Outgassing Rate & Ultimate Base Pressure Calculator Example

Input Values:

internalSurfaceAreaCm2:12000
effectivePumpingSpeedLPerS:300
surfaceTreatment:2
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required mbar.

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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