Name _________________________ Exam 3, 2008: CHEM/BCMB 4190/6190/8189 1 Exam 3: CHEM/BCMB 4190/6190/8189 (129 points) Thursday, 30 October, 2008 1). In the example (right), the effect of a 90°(±/2) pulse applied along the “x” axis (90°x) is shown for a bulk magnetization vector (M0) at equilibrium (on the ‘z’ axis). For ‘c’, ‘d’ and ‘e’ below, show the effects of the indicated pulses by drawing the missing (originating or resulting) vectors on the coordinate axes. For ‘a’, ‘b’ and ‘f’, fill in the blank with the correct pulse (angle and axis along which it is applied) that will promote the indicated movement of the bulk magnetization vector. In some cases there may be more than one correct answer. (12 points) a. d. b. e. c. f. 90°x M0y z x y z x 90°-yy z x y z x 90°-xy z x y z x 90° ²y, 90° xy z x y z x y z x y z x 270°y, 90°-x180°xy z x y z x y z x y z x ±-ythis vector is in the x-z plane this vector is in the x-z plane
has intentionally blurred sections.
Sign up to view the full version.