# Radiation-aware 2.5D validation

- Analytic-slab finest relative error: **1.444e-04**
- DtN derivative relative error: **3.465e-10**
- Nonlinear objective-gradient relative error: **2.696e-05**
- Even-parity x/y/z basis reduction: **5.159x**
- Parity/full atom-response relative error: **2.092e-15**
- Parity/full atom-gradient relative error: **2.050e-15**
- Parity/full field correlation: **1.000000000000**
- Even-parity DtN derivative relative error: **3.478e-10**
- Even-parity nonlinear-Q gradient relative error: **2.696e-05**

Cross-basis validation was not requested.

Overall gate: **PASS**

Passing this gate establishes a working, basis-stable reduced optimizer.  It
does not replace full-vector 3D pole, grid, or radiation validation.