Discussion
What does the spin-lattice relaxation time T1 describe?
Answer: B
T1 is the time constant for the longitudinal magnetisation to return towards its equilibrium value after a pulse, energy passing from the spins to their surroundings, the lattice. It sets how long you must wait between pulses: about five times T1 for essentially complete recovery. Loss of transverse coherence is T2, the sample reaches room temperature long before any of this, and the pulse interval is chosen by the operator in the light of T1. A long T1 is the reason quaternary carbons are weak in a fast experiment.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development