... The quench rate is varied over 4 orders of magnitude. ... The setup Sample geometry Sample holder Thermal cycling Challenges ·Measuring cooling rate at T=TC ·Reproducible cycles within several decades of cooling rates ·No electrical connections during transition time Quench time: Q = -TC (dT/dt| T=TC) -1 Magnetic fields The effect of an applied orthogonal magnetic field on trapping rate is studied. ... A minimum is expected at zero net field. ... References [1]T. W. B. Kibble, Phys. Rep. ...