Selective inversion radiofrequency pulses by optimal control
β Scribed by Jintong Mao; T.H Mareci; K.N Scott; E.R Andrew
- Publisher
- Elsevier Science
- Year
- 1986
- Weight
- 398 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0022-2364
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## Abstract Optimal control theory has been applied in the past for the design of RF pulses for selective excitation. This was the outcome of having established the controllability of the MR spin system for the selective excitation problem. βMinimum distanceβ was the main formulation used for the s
We use penalty methods coupled with unitary exponential operator methods to solve the optimal control problem for moleo ular time-dependent Schradinger equations involving laser pulse excitations. A stable numerical algorithm is presented which propagates directly from initial states to &en final st