the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
| 13 Jan 2023
A perspective for magic angle spinning above 250 kHz – OptiMAS
Abstract. Magic angle spinning averages out the dipolar coupling among spins in rigid solids, as well as other sources of magnetic inhomogeneity, leading to sideband suppression. To achieve line widths close to that achievable for the liquid state, it has been postulated that 250 kHz rotation frequencies have to be exceeded. Here we explore a perspective for a research project to achieve this goal.
This preprint has been withdrawn.
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Withdrawal notice
This preprint has been withdrawn.
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Preprint
(5796 KB)
Interactive discussion
Status: closed
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CC1: 'Comment on mr-2022-24', Tom Barbara, 16 Jan 2023
The progress achieved and the proposed future for high speed rotation is a very technical but facinating topic. Yes, it does have a significant engineering aspect. I learned some of this during my early years at Varian, and the collaboration with Hans Jacobsen and his stator rotor designs, aspects of which were part of my project duties. Back then I very much enjoyed reading the popular overview by J.W. Beams in Scientific American, April 1961. His speed record was about 1.5 million r.p.s! Amazing. Steel balls of course, suspended in a vaccum.
Citation: https://doi.org/10.5194/mr-2022-24-CC1 -
AC1: 'Reply on CC1', Jan Gerrit Korvink, 17 Jan 2023
Dear Tom,
thank you very much for pointing out this important historical reference, of which I was not aware! The article is great, and Beams was a tremendous innovator. I will definitely include a reference to this early groundbreaking achievement in the manuscript.
Best regards,
Jan
( ... popular overview by J.W. Beams in Scientific American, April 1961. His speed record was about 1.5 million r.p.s! )
Citation: https://doi.org/10.5194/mr-2022-24-AC1 -
CC2: 'Reply on AC1', Tom Barbara, 17 Jan 2023
Glad to hear you enjoyed reading it. I first I wondered whether people could get access to such an old article.
Citation: https://doi.org/10.5194/mr-2022-24-CC2 -
AC2: 'Reply on CC2', Jan Gerrit Korvink, 19 Jan 2023
Yes, I was surprised that I hadn't found it before. I really searched around quite hard, but I guess it still comes down to the keywords. Anyway, the story around Beams is very interesting, such careers are difficult these days, we have become numerologists. I can heartily recommend the review of his career contributions, with all the details of him moving around, trying to get closer to his childhood home. Many thanks again.
Citation: https://doi.org/10.5194/mr-2022-24-AC2 -
CC3: 'Reply on AC2', Tom Barbara, 19 Jan 2023
Can you send me a citation to the article. Yes I would like to read that. Thanks.
Citation: https://doi.org/10.5194/mr-2022-24-CC3 -
AC4: 'Reply on CC3', Jan Gerrit Korvink, 20 Jan 2023
Dear Tom, I have responded to your request via a separate email, and attached the biography I was referring to. Best regards, Jan
Citation: https://doi.org/10.5194/mr-2022-24-AC4
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AC4: 'Reply on CC3', Jan Gerrit Korvink, 20 Jan 2023
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CC3: 'Reply on AC2', Tom Barbara, 19 Jan 2023
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AC2: 'Reply on CC2', Jan Gerrit Korvink, 19 Jan 2023
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CC2: 'Reply on AC1', Tom Barbara, 17 Jan 2023
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AC1: 'Reply on CC1', Jan Gerrit Korvink, 17 Jan 2023
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EC1: 'Comment on mr-2022-24', Kong Ooi Tan, 19 Jan 2023
Dear author of mr-2022-24,
After receiving feedback from the community and discussion with other members of the editorial team, we would like to defer the review process and request a major revision on the format/style of the article so that it falls into one of the categories that is accepted by our journal, i.e., research, review, or educational articles. Despite the term 'perspective' in the title, the current format still appears like a funding proposal.
We would be happy to continue the review after the article is in an acceptable form (either a minireview or educational article). Otherwise, I am afraid we cannot accept the article in our journal.
We wish you a pleasant day and are sorry for the inconvenience.
Please refer to the following page for detailed guidelines.
https://www.magnetic-resonance-ampere.net/about/manuscript_types.html
Best wishes,
Handling Editor of mr-2022-24
Kong Ooi TanCitation: https://doi.org/10.5194/mr-2022-24-EC1 -
AC3: 'Reply on EC1', Jan Gerrit Korvink, 19 Jan 2023
Dear Kong, I will be happy to do the revision as requested. I will however need more time as I am somewhat bound up right now. Kind regards, Jan
Citation: https://doi.org/10.5194/mr-2022-24-AC3
-
AC3: 'Reply on EC1', Jan Gerrit Korvink, 19 Jan 2023
Interactive discussion
Status: closed
-
CC1: 'Comment on mr-2022-24', Tom Barbara, 16 Jan 2023
The progress achieved and the proposed future for high speed rotation is a very technical but facinating topic. Yes, it does have a significant engineering aspect. I learned some of this during my early years at Varian, and the collaboration with Hans Jacobsen and his stator rotor designs, aspects of which were part of my project duties. Back then I very much enjoyed reading the popular overview by J.W. Beams in Scientific American, April 1961. His speed record was about 1.5 million r.p.s! Amazing. Steel balls of course, suspended in a vaccum.
Citation: https://doi.org/10.5194/mr-2022-24-CC1 -
AC1: 'Reply on CC1', Jan Gerrit Korvink, 17 Jan 2023
Dear Tom,
thank you very much for pointing out this important historical reference, of which I was not aware! The article is great, and Beams was a tremendous innovator. I will definitely include a reference to this early groundbreaking achievement in the manuscript.
Best regards,
Jan
( ... popular overview by J.W. Beams in Scientific American, April 1961. His speed record was about 1.5 million r.p.s! )
Citation: https://doi.org/10.5194/mr-2022-24-AC1 -
CC2: 'Reply on AC1', Tom Barbara, 17 Jan 2023
Glad to hear you enjoyed reading it. I first I wondered whether people could get access to such an old article.
Citation: https://doi.org/10.5194/mr-2022-24-CC2 -
AC2: 'Reply on CC2', Jan Gerrit Korvink, 19 Jan 2023
Yes, I was surprised that I hadn't found it before. I really searched around quite hard, but I guess it still comes down to the keywords. Anyway, the story around Beams is very interesting, such careers are difficult these days, we have become numerologists. I can heartily recommend the review of his career contributions, with all the details of him moving around, trying to get closer to his childhood home. Many thanks again.
Citation: https://doi.org/10.5194/mr-2022-24-AC2 -
CC3: 'Reply on AC2', Tom Barbara, 19 Jan 2023
Can you send me a citation to the article. Yes I would like to read that. Thanks.
Citation: https://doi.org/10.5194/mr-2022-24-CC3 -
AC4: 'Reply on CC3', Jan Gerrit Korvink, 20 Jan 2023
Dear Tom, I have responded to your request via a separate email, and attached the biography I was referring to. Best regards, Jan
Citation: https://doi.org/10.5194/mr-2022-24-AC4
-
AC4: 'Reply on CC3', Jan Gerrit Korvink, 20 Jan 2023
-
CC3: 'Reply on AC2', Tom Barbara, 19 Jan 2023
-
AC2: 'Reply on CC2', Jan Gerrit Korvink, 19 Jan 2023
-
CC2: 'Reply on AC1', Tom Barbara, 17 Jan 2023
-
AC1: 'Reply on CC1', Jan Gerrit Korvink, 17 Jan 2023
-
EC1: 'Comment on mr-2022-24', Kong Ooi Tan, 19 Jan 2023
Dear author of mr-2022-24,
After receiving feedback from the community and discussion with other members of the editorial team, we would like to defer the review process and request a major revision on the format/style of the article so that it falls into one of the categories that is accepted by our journal, i.e., research, review, or educational articles. Despite the term 'perspective' in the title, the current format still appears like a funding proposal.
We would be happy to continue the review after the article is in an acceptable form (either a minireview or educational article). Otherwise, I am afraid we cannot accept the article in our journal.
We wish you a pleasant day and are sorry for the inconvenience.
Please refer to the following page for detailed guidelines.
https://www.magnetic-resonance-ampere.net/about/manuscript_types.html
Best wishes,
Handling Editor of mr-2022-24
Kong Ooi TanCitation: https://doi.org/10.5194/mr-2022-24-EC1 -
AC3: 'Reply on EC1', Jan Gerrit Korvink, 19 Jan 2023
Dear Kong, I will be happy to do the revision as requested. I will however need more time as I am somewhat bound up right now. Kind regards, Jan
Citation: https://doi.org/10.5194/mr-2022-24-AC3
-
AC3: 'Reply on EC1', Jan Gerrit Korvink, 19 Jan 2023
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