Milestone-Proposal talk:Active shielding of superconducting magnets: Difference between revisions

From IEEE Milestones Wiki
(→‎Approval -- ~~~~: new section)
Line 116: Line 116:
So now we have two positive expert opinions on this nomination as required by our procedures.
So now we have two positive expert opinions on this nomination as required by our procedures.
Hence, I give my approval as an Advocate for this Milestone
Hence, I give my approval as an Advocate for this Milestone
===Re: Approval -- [[User:Jason.k.hui|Jason.k.hui]] ([[User talk:Jason.k.hui|talk]]) 15:45, 2 July 2019 (UTC)===
I have reviewed the milestone proposal and am in favor in having it moved forward for History Committee consideration.
Jason Hui
IEEE History Committee Vice Chair
Milestones Subcommittee Chair

Revision as of 15:45, 2 July 2019

Citation -- JaninA (talk) 20:14, 8 September 2018 (UTC)

Dear Proposer,

may I suggest that you have a look at the citation in the nomination. The second sentence is too long and not grammatical...

Also there is no information which IEEE Unit will pay for the plague.

Kind regards

Janina

Re: Citation -- Rmuttram (talk) 23:20, 12 September 2018 (UTC)

The second sentence has been re-written. Hopefully it now reads better, although it is only one word shorter.

Dear Proposer -- JaninA (talk) 21:10, 8 September 2018 (UTC)

please find my further notes and comments in respect to the Milestone. I hope they will be of some help.

Kind regards

Janina

Notes: '1. Why different dates in the Proposal?' Year or range of years in which the achievement occurred: 1961 to 1989 Title of the proposed milestone: The active shielding of Superconducting MRI Magnets (1984-87) Plaque citation summarizing the achievement and its significance: At this site between 1986 and 1987......

We therefore proposing that this milestone be focused on the third major element that has enabled the widespread and flexible adoption of these machines - Active Shielding which was developed at the Eynsham site with the first actively shielded magnet completed in 1986 leading to the first MRI machine deployment at 1.5 Tesla in 1989.

2. How the public can access the site is missing?' How is the site protected/secured, and in what ways is it accessible to the public? The site is a significant design and manufacturing location and is staffed on a 24/7 basis throughout the year.

3. Why differences in the name? Who is the present owner of the site(s)? Siemens Magnet Technology Ltd., part of Siemens Healthcare

and Siemens Magnet Systems have recently developed a 7T magnet which was runner up for the prestigious UK Royal Academy of Engineering MacRobert Award in 2016.

4. Only l/5 of the text for the section titled What is the historical significance of the work (its technological, scientific, or social importance)? is devoted to the topic of the proposed Milestone. The rest is devoted to the principle of the MRI itself… Also the part dealing with a building where early work was conducted (in a different location) is a bit confusing. Once could think it refers to the building where the plague is to be.

Re: Dear Proposer -- Rmuttram (talk) 23:42, 12 September 2018 (UTC)

1. I hope I have clarified this now: The first prototype was built in 1986, the first (1.5T) MRI machine delivered in 1989.
 2. Section expanded.
 3. Added some text to clarify: the company is, as you say, currently called Siemens Magnet Technology which is part of Siemens Healthcare  (now known as Siemens 'Healthineers'). At the time of the development it was called Oxford Magnet Technology.
 4. I have added some more text on the Active shielding element but we feel it is essential to put this enabling technology in context. The plaque location is clearly stated to be the current (Eynsham) site which has been the home of Oxford Magnet Technology and now Siemens Magnet Technology since 1984

Re: Dear Proposer -- Rmuttram (talk) 10:29, 7 March 2019 (UTC)

The proposal has been restructured and additional information added. The text detailing MRI has been replaced by a link. Further information on the significance of Active Shielding in the timeline of MRI developments has been added including a file from Siemens Magnet systems showing growth in delivered volumes.

Suggestions for editing the citation -- Administrator4 (talk) 15:09, 30 October 2018 (UTC)

I recommend shortening the citation by deleting the corporate names and focusing on the achievement, thus:

At this site, between 1986 and 1989, the first actively shielded superconducting magnets suitable for practical Magnetic Resonance Imaging (MRI) use were engineered, designed and produced. Active shielding reduced the size, weight, and cost of MRI systems, and allowed machines to be more easily transported and flexibly located benefiting advanced medical diagnosis all over the world.

Re: Suggestions for editing the citation -- Rmuttram (talk) 10:38, 7 March 2019 (UTC)

Your suggestion has been accepted with a couple of other minor edits

-- JaninA (talk) 18:17, 9 March 2019 (UTC)

I approve the Nomination for consideration by the History Committee.

Expert Opinion -- JaninA (talk) 13:39, 10 March 2019 (UTC)

From: "Wu, Anbo AB (GE Global Research, US)" <Anbo.Wu3@ge.com> Date: Thursday, 17 January 2019 at 22:55 To: "Mazierska, Janina" <janina.mazierska@jcu.edu.au> Subject: RE: assessment of an IEEE Milestone nomination 2018-04 “The active shielding of Superconducting MRI Magnets (1986-89)”,

Dear Prof. Mazierska,

I couldn’t log onto the IEEE-milestone website. Please see my input below.

To my best knowledge, the Oxford Magnet Technology Ltd developed the first actively-shielded superconducting MRI magnet in 1986. It is a milestone for MRI industry. To make the history clear, I would suggest to grant the milestone to Oxford Magnet Technology(OMT) and describe its relation to Siemens Magnet Technology(SMT), instead of simply granting to SMT.

As a side note for your information, actually the GE Research Center developed the first 1.5T full-body MRI system and acquired the first MRI image in 1.5T highest field in 1983. The successful results translated into the highly successful 1.5 T MRI product-line. The passively-shielded magnet used in the first 1.5T MRI system was ordered from Oxford Instrument.

Kind regards, Anbo

Expert Review -- Jason.k.hui (talk) 22:50, 28 June 2019 (UTC)

The following is an expert review from Dr. Michael Parizh, Principal Scientist at General Electric - Global Research in Niskayuna, NY received on 28 June 2019:

Dear Dr. Hui –

I fully support the proposed IEEE Milestone “Active shielding of superconducting magnets” at the Siemens Magnet Technology site (formerly Oxford Magnet Technology, Eynsham, Oxfordshire, UK).

Answers to your questions:

1. Is the suggested wording of the plaque citation accurate?

Yes

2. Is the evidence presented in the proposal of sufficient substance and accuracy to support the citation?

Yes, the evidence is sufficient. In short, the actively-shielded MRI scanners ensured commercial attractiveness of the MRI scanners by dramatically reducing the footprint required for the scanner installation and reducing the scanner price. Since early 1990s, practically all commercial superconducting MRI scanners (over 50,000 units were produced over years), and some NMR systems are actively shielded. The achievement was introduced in a well-known IEEE Trans. Magn. Paper IEEE TRANSACTIONS ON MAGNETICS, VOL. MAG-23, NO. 2, MARCH 1987; CONSIDERATIONS IN THE DESIGN OF MRI MAGNETS WITH REDUCED STRAY FIELDS by D.C. Hawksworth, I.L. McDougall, J.M. Bird and D. Black.

3. Does the proposed milestone represent a significant technical achievement?

Yes, the actively-shielded magnets represent a significant technical achievement. Active shielding, a great, non-obvious innovation, changed configuration of the MRI scanners. Magnet designers needed to address multiple challenges including but not limited to force/stress constraints, quench protection, high peak magnetic field, interaction with other MRI scanner components, keep a compact magnet size, develop reliable, cost-efficient cryogenic approaches.

Approval -- JaninA (talk) 09:05, 29 June 2019 (UTC)

So now we have two positive expert opinions on this nomination as required by our procedures. Hence, I give my approval as an Advocate for this Milestone

Re: Approval -- Jason.k.hui (talk) 15:45, 2 July 2019 (UTC)

I have reviewed the milestone proposal and am in favor in having it moved forward for History Committee consideration.

Jason Hui IEEE History Committee Vice Chair Milestones Subcommittee Chair