Single-Use Bioprocess Assemblies worked example

Gamma Dose Cost at 50% validated load density fill: a worked example in single-use bioprocess assemblies

Suppose validated load density fill falls to 50%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimates gamma sterilization cost for single-use bioprocess assemblies from lot size, per-assembly dose cost, and how fully the validated irradiator load is filled.

The inputs for this scenario

  • Assemblies irradiated per shipment: 450 units (held at the documented default)
  • Gamma dose cost per assembly: 6.8 $/unit (held at the documented default)
  • Validated load density fill: 50 % (the input this scenario stresses; the baseline uses 70)
  • Dosimetry and lot release fee: 2,400 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Cost = assemblies x dose cost per assembly x load density % + dosimetry & release.
  • Total gamma dose cost works out to 3,930 $ at these inputs, and this is the headline figure for the scenario.
  • Gamma dose cost per unit works out to 8.73 $ / piece at these inputs.
  • Variable gamma dose cost works out to 1,530 $ at these inputs.
  • Fixed gamma dose cost adder works out to 2,400 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where validated load density fill sits at 70% and the headline result is 4,542 $, this scenario comes in 13.47% below the baseline at 3,930 $.
  • It computes total gamma irradiation cost, the fixed dosimetry and release adder, the variable dose charge scaled by load density, and the resulting cost per assembly. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Total gamma dose cost: 3,930 $ (headline result)
  • Gamma dose cost per unit: 8.73 $ / piece
  • Variable gamma dose cost: 1,530 $
  • Fixed gamma dose cost adder: 2,400 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Gamma Dose Cost calculator, set validated load density fill to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.