Abstract
A CPMG pulse sequence incorporated with a DANTE-Z slice selection scheme for measuring spatially-resolved T2 distributions has been presented. The DANTE-Z pulse train with sinc-modulated pulses selects a single, quasi-rectangular slice of less than 0.8cm wide at an arbitrary position over a 6-cm long sample. The measured T2 distributions are of almost the same quality as regular (bulk) CPMG measurements, with the lower T2 limit being as good as c.a. 0.5ms. The sequence can be found useful as a supplement or alternative to MRI-based techniques for T2 mapping in short relaxation time samples (water-saturated rocks, building materials, wood, food products, rubbers, etc.), particularly when T2 is required to be measured at only few positions along the sample and the resolution of ∼1cm is acceptable.
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