The Validation Campaign
A structured plan to turn modelled claims into measured ones, subsystem by subsystem, from coupon tests through the test burner.
Structure of the campaign
Validation is organised by subsystem and by increasing integration. Each subsystem is first tested alone, then in combination, then in the integrated test burner. A claim is only promoted from simulated to demonstrated when a physical test supports it.
Acceptance gates
Each stage has explicit acceptance criteria with uncertainty bounds. A result that lands outside its predicted band is a finding, not a failure to hide; it re-informs the models before the next stage proceeds.
Why it is staged
Staging protects against compounding optimism. If the plug coil coupon does not meet margin, that is known before an integrated machine depends on it. The campaign is the discipline that keeps the 2032 and 2036 dates honest.
Staging the campaign is the mechanism that keeps optimism from compounding. If a magnet coupon misses margin, that is known before an integrated machine depends on it, and the design responds rather than the schedule pretending. A result outside its predicted band is treated as data that re-informs the models, not as an inconvenience to be smoothed over.