UNIVERSAL SCALING LAWS FOR QUENCH AND THERMAL-HYDRAULIC QUENCHBACK INCICC COILS

A set of universal scaling relations is presented describing the propa gation of quench in CICC magnets. Four distinct types of behavior are possible depending upon the length of the coil and the magnitude of th e quench induced pressure rise. The boundaries separating these region s can be simply expressed in terms of L(q) the initial quench length, and J the stabilizer current density, the two parameters likely to var y during standard operation. The phenomenon of thermal hydraulic quenc hback (THQB) is also considered. It is shown that the conditions for t he onset of THQB can also be cast as a set of universal scaling relati ons and easily superimposed on the quench diagram.