Talk:Spin echo

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Echo Train?[edit]

I am studying NMR and solid state NMR. I would find it useful to find a section regarding using the hahn echo to create an echo train (like in the CPMG experiment), however I do not have the confidence to write it myself. — Preceding unsigned comment added by 159.92.238.51 (talk) 10:10, 12 September 2016 (UTC)[reply]

old comment[edit]

I disagree with the rating of LOW importance. Spin-echo is very often referred to in courses as the most basic MRI sequence -- that is its the first thing a student learning about NMR or MRI will want to figure out. Its important that the introduction to this field be a well-written article, possible aimed at a technical but non-expert audience. Salsasam (talk) 00:41, 16 December 2008 (UTC)[reply]

Conflict of Interest Statement[edit]

One of the contributors to this article, AFiller, has a patent in this field - see User:afiller for full conflict of interest statement

Another contributor to this article (GavinMorley) also has patents that relate to spin echoes. See User:GavinMorley for more details.

What exactly is meant with the angles? i.e. 90 and 180 degrees?[edit]

I used to study physics, but it is entirely obscure what the angles here mean. Are these phase angles? Or orientation angles of the coils? A physical derivation might be clearer? — Preceding unsigned comment added by 81.11.191.62 (talk) 09:00, 15 January 2015 (UTC)[reply]

These angles are the angle through which a pulse rotates the spins in the Bloch sphere. GavinMorley (talk) 15:40, 20 January 2015 (UTC)[reply]

T1 and T2 discussed in the text should be related to the images/videos[edit]

Presumably T1 and T2 in the text refer to the 1st t and 2nd t, respectively, in the x-axis of the images and videos. For clarity, these ts should be labeled as t1 and t2, respectively. — Preceding unsigned comment added by Guozk2 (talk • contribs) 17:20, 10 February 2016 (UTC)[reply]

Tau in Stimulated Echo[edit]

It seems to me that the times between pulses and echo are not necessarily equal, and therefore require subscripts to distinguish them, for example,

tau,1=t,pulse2 - t,pulse1 tau,2=t,pulse3 - t,pulse2 tau,3=t,echo - t,pulse3

(Unfortunately, I lack the required coding skills to change it and have no time to teach myself, at present)

In any case, might anyone disagree with this logic? Thedoctorissick (talk) 17:21, 11 April 2016 (UTC)[reply]