r1 = 0.7: T = 1.50 pi/(2J) -> 1-F = 1.20e-03
  same pulse under cap r2 = 1.0: 1-F = 1.20e-03 (must equal 1.20e-03)
    continuation r2 = 1.0: T = 1.40 pi/(2J) -> 1-F = 1.74e-03
    continuation r2 = 1.0: T = 1.30 pi/(2J) -> 1-F = 1.02e-02
    continuation r2 = 1.0: T = 1.20 pi/(2J) -> 1-F = 6.31e-03
  same pulse under cap r2 = 1.5: 1-F = 1.20e-03 (must equal 1.20e-03)
    continuation r2 = 1.5: T = 1.40 pi/(2J) -> 1-F = 1.11e-02
    continuation r2 = 1.5: T = 1.30 pi/(2J) -> 1-F = 1.17e-02
    continuation r2 = 1.5: T = 1.20 pi/(2J) -> 1-F = 4.98e-03