The Syntax for Using Pulses, Delays, Gradients and Decoupling

2 The Syntax for Using Pulses, Gradients, Delays and Decoupling 

Pulses, delays and gradients are the basic elements of a pulse sequence. They are often used repeatedly and may be changed in a very versatile way. Their exact definition and time related execution follows a specific set of rules which the pulse program interpreter uses to translate the line ordered execution commands into a computer readable list of commands. 

High power pulses, shaped pulses and gradients 

Pulses are extremely versatile and can have a number of different properties  

With the design of a modern NMR spectrometer some of these properties, such as frequency and power, do not have to be explicitly defined for each pulse. Normally rf pulses with the same NMR frequency are transmitted from the spectrometer to the probehead using the same rf channel. In normal and reverse detection mode the rf 

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