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LHC still does not operate at full energy due to training features inmagnets. Higher field practical superconductors (Nb3Sn) show much worsetraining behavior than NbTi. Most magnet performance issues relate toquenching, and it is this phenomenon and its dependencies that need to beunderstood for us to succeed addressing them in magnets. For pragmatic andscientific reasons underlying mechanisms are hard to investigate in realmagnets. Available data suggest that emulating local conditions at quenchlocation may be enough to arrive at a good understanding of what drivesobserved behavior. "Local" conditions imply emulation by small samples ofcables/"stacks" powered within a facility with controllable conditions,including external magnetic and force fields. This paper argues about thenecessity of this approach, while reminding current understanding anddirections of quench studies, and pointing out inadequacy of availabletechniques. Improved facilities and change of perspective are required forconsistent and affordable development.

Test samples and infrastructure for accelerator magnet developments