Thread:Abstract Submitted for participation in NSC12; CRSI2010 Meeting ; Feb.4-7,2010 (1)

NSC12: CRSI 2010 at IICT, Hyderabad Feb. 4-7,2010 : of NSC12:CRSI2010

Abstract accepted:List of accepted abstracts

SINGLE SPIN VECTOR PRECESSION DESCRIPTION FOR NQR AND POPULATIONS, MAGNETIZATION AND COHERENCES

S. ARAVAMUDHAN Department of Chemistry NORTH EASTERN HILL UNIVERTSITY PO NEHU Campus SHILLONG 793022 Meghalaya INDIA

In the previous presentation (1, 2) the feasibility of a classical vector precession description was considered for NQR and a provisional illustration could be worked out for such a single spin description for the case of the basic NQR interaction of Electric Field Gradients interacting with Nuclear Quadrupole Moment. The further consequence which can be looked for is the possibility of describing the Resonance Phenomenon using the single spin description and envisage a coverage of the description of terms like Population, Magnetization and Coherences and the description of evolution of the spin system in accordance with the classical vector single spin precession under nuclear quadrupole interactions.

These terms have a well formulated description for the case of NMR of spin ½ nuclei like protons. A description for the NMR of Spin >1 nuclei (with three equidistant energy levels for Spin=1 unlike the two level system for spin ½) and the corresponding NQR level descriptions have to be considered for a convincing development of the meaning of the terms like populations, magnetization, and the coherences arising out of superposition of levels under short intense pulses applied to the spin system.

This aspect would be considered and the credible alternatives for NMR and NQR would be attempted when the nuclear spin is >1

Reference: 1.	http://aravamudhan-s.ucoz.com/nmrs2009_ibs2009_nsc11.html#NSC-11 2.	http://ugc-inno-nehu.com/