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analytic_z-spectra-cw-3pool [2016/02/13 20:50] |
analytic_z-spectra-cw-3pool [2021/10/11 13:22] (current) |
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+ | ===== Z-spectrum - water, CEST, MT - cw===== | ||
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+ | Here you find analytic solutions of the Bloch-McConnell equations describing Z-spectra. | ||
+ | This R< | ||
+ | {{ : | ||
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+ | It is a very lean code to give you a tool illustrating the principal behaviour of a CEST effect and its interaction with the direct water saturation. It is actually the same source code as for the [[Analytic Z-spectra-cw-2pool|Solution for 2-pools under cw irradiation]]. Just the BATCh file is adjusted. | ||
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+ | Dowload zipped Matlab implementations [[https:// | ||
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+ | ====== Tutorial====== | ||
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+ | {{youtube> | ||
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+ | ===== BATCH_Z_cw_3pool ===== | ||
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+ | For the 3-pool-simulation the 2-pool code must only be extended by the following fields in the struct P. | ||
+ | <code matlab> | ||
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+ | % % semi-solid MT pool ' | ||
+ | P.fC=0.139; | ||
+ | P.kCA=23; | ||
+ | P.dwC=-2; | ||
+ | P.R2C=1/ | ||
+ | P.R1C=1; | ||
+ | P.MT_lineshape=' | ||
+ | |||
+ | </ | ||
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+ | To see the full width of the MT the frequency axis must be extended. | ||
+ | <code matlab> | ||
+ | % sequence parameters | ||
+ | P.xZspec= [-150: | ||
+ | </ | ||
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+ | Now the function Z_cw(P) is called and plotted. | ||
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+ | <code matlab> | ||
+ | figure(32), plot(P.xZspec, | ||
+ | </ | ||
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+ | {{ : |