Home › Forums › Hyperfine course › NMR & NQR › orientation: temperature and radiation › answers This topic has 0 replies, 1 voice, and was last updated 8 months, 3 weeks ago by Jakob Vermeulen. Viewing 1 post (of 1 total) Author Posts April 3, 2024 at 10:23 am #5658 Jakob VermeulenParticipant There are 3 hyperfine levels, m = +- 1 and m = 0. From this we also know that the nucleus has a spin of 1. At low temp the lowest energy level will be taken, so the orientation will be in the negative z direction. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In