Question

Unpolarized beam of neutrons (unpolarized means that numbers of "up" and "down" neutrons equal) is moving in the y-direction and has intensity Io. The beam is transmitted through region of nonuniform magnetic field directed along the z-axis B = (0,0,B). This is the Stern-Gerlach polarizer 7 (0,0,1). After that the upper beam is transmitted through the second Stern-Gerlach polarizer directed at angle Find intensities of beams I1, I2, and I3, after the first and the second polarizer are a 30° in the zy-plane n2 = (0, cos a, sin a) the figure see 2nd polarizer 12 II 1st polarizer damped

Answer 1

sol. we know Intensity of Beam & A? (Square of the amplitude) - Io I, = Io cos 45º = Iocte) = I, cosa = do casso Even ? Tos Iz = I, Sină = Io sin? 30 . Intensities of Beams I, = I. ats et