
Gmr.m (NMR & MRI Properties) 1.0 File ID: 79651 


 Gmr.m (NMR & MRI Properties) 1.0 License: Freeware File Size: 10.0 KB Downloads: 0
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Gmr.m (NMR & MRI Properties) 1.0 Description 

Description: GMR returns the gyromagnetic ratio and other NMR properties for various nuclei as well as the electron. Besides the function format, the command format will work as well, e.g. "gmr Na23 hzpt 3.0".
Format: y=gmr(nucleus,unit,b0) "nucleus" = string or number specifying the nucleus (not case sensitive) e.g. '31P','p31', or 31 or even '31'. For some cases specifying the element is sufficient, e.g. 'p' for 'p31'. If "nucleus"='all' (default) then "y" is a cell array of the entire table. "unit" = a string specifying one of the following: 1.) Gyromagnetic ratio unit 2.) Desired parameter value of the following: string label nuclear spin nuclear quadrupole moment in fm^2 nuclear magnetic moment in nuclear magnetons natural abundance in mole percent relative sensitivity wrt 1H quadrupole line width 3.) 'all'  "y" is a structured variable with the above fields. "b0" = field strength, if specified then "y" is the Larmor frequency (in Hz or rad/s). "y" = one of table, output value determined by unit, or structured variable. If multiple matches occur, "y" is a cell array of the matched isotopes.
Examples: gmr(1,'rpgs') ans = 2.6752e+004 gmr P31 ans = 1.7251e+007 gmr(13,'nat') ans = 1.0700 gmr('1h',1.5) ans = 6.3866e+007 gmr na label ans = 23Na
References: R.K.Harris et. al., Pure and Applied Chemistry, 2001, 73:17951818. Electron value: http://physics.nist.gov/cuu/Constants
Isotopes (file id 11722) by Peter Volegov performs a similar function with different references and program usage. I recommend the user to try both programs.
License: Freeware Related: variableif, determined, output, Frequency, Multiple, matches, gmr rpgs, isotopesexamples, matched, occur, larmor, structured, 039all039, Width, sensitivity, Variable, Strength, Field O/S:BSD, Linux, Solaris, Mac OS X File Size: 10.0 KB Downloads: 0


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