Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Goodwin, David L."'
Autor:
Goodwin, David L., Vinding, Mads Sloth
A Hessian based optimal control method is presented in Liouville space to mitigate previously undesirable polynomial scaling of computation time. This new method, an improvement to the state-of-the-art Newton-Raphson GRAPE method, is derived with res
Externí odkaz:
http://arxiv.org/abs/2207.09882
Autor:
Ehni, Sebastian, Koos, Martin R. M., Reinsperger, Tony, Haller, Jens D., Goodwin, David L., Luy, Burkhard
Conventional refocusing pulses are optimised for a single spin without considering any type of coupling. However, despite the fact that most couplings will result in undesired distortions, refocusing in delay-pulse-delay-type sequences with desired h
Externí odkaz:
http://arxiv.org/abs/2109.05453
We have recently demonstrated supervised deep learning methods for rapid generation of radiofrequency pulses in magnetic resonance imaging (https://doi.org/10.1002/mrm.27740, https://doi.org/10.1002/mrm.28667). Unlike the previous iterative optimizat
Externí odkaz:
http://arxiv.org/abs/2107.00933
Publikováno v:
Phys. Rev. Research 2, 033157 (2020)
We show that the duration of broadband universal control pulses can be halved by choosing control targets with a quadratic function of phase dispersion. This class of control pulses perform a broadband universal rotation around an axis, in the Bloch
Externí odkaz:
http://arxiv.org/abs/1904.09452
Autor:
Goodwin, David L.
Work within this thesis advances optimal control algorithms for application to magnetic resonance systems. Specifically, presenting a quadratically convergent version of the gradient ascent pulse engineering method. The work is formulated in a supero
Externí odkaz:
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.749785
Autor:
Goodwin, David L.
Publikováno v:
David L. Goodwin. Advanced Optimal Control Methods for Spin Systems. PhD thesis, University of Southampton, 2017
Work within this thesis advances optimal control algorithms for application to magnetic resonance systems. Specifically, presenting a quadratically convergent version of the gradient ascent pulse engineering method. The work is formulated in a supero
Externí odkaz:
http://arxiv.org/abs/1803.10432
Autor:
Ehni, Sebastian, Koos, Martin R.M., Reinsperger, Tony, Haller, Jens D., Goodwin, David L., Luy, Burkhard
Publikováno v:
In Journal of Magnetic Resonance March 2022 336
Publikováno v:
J. Magn. Reson. 297, 9-16 (2018)
Numerically optimised microwave pulses are used to increase excitation efficiency and modulation depth in electron spin resonance experiments performed on a spectrometer equipped with an arbitrary waveform generator. The optimisation procedure is sam
Externí odkaz:
http://arxiv.org/abs/1707.05184
Publikováno v:
In Journal of Magnetic Resonance December 2018 297:9-16
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.