The name is absent

Chapter 3

echo at time t∈∙ The measurement is repeated after time spacing f_R.

Figure 3.6 Sequence of MRI 1-D profile measurement

Magnetic gradient pulse is applied during echo signal collection. The total
signal at the time of the echo is ^[2]:

¾(0 = jp(z)exp[-i/G_z(t-t_E)]dz                                 [3.31]

A Fourier transform of S_z(t) yields the spin density p(z).

Signal amplitude at position z is proportional to spin density ρ(z) and can be
expressed as the function of T∣, T₂, f_R and ⅛ ^pl:

A = A_Q(l-e~^tRlTl)e~^tE,T2                                          [3.32]

3.4.2. Ti weighted 1-D MRI profile measurement

When the oil∕water concentration is varying as a function of z, the contrast in
the spin density is not large enough to give useful information of oil/ water
distribution. This is the case for water-in-diluted bitumen emulsions in which large
drops may accumulate at the bottom while small drops may stay at the top. To

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