Production of spin polarized 12N through heavy ion reactions

• Published in: Hyperfine interactions Vol. 220; no. 1-3; pp. 83 - 88
• Main Authors: Mihara, M., Matsuta, K., Nishimura, D., Fukuda, M., Yaguchi, M., Iwamoto, K., Wakabayashi, M., Kamisho, Y., Ohno, J., Morita, Y., Izumikawa, T., Ohtsubo, T., Suzuki, S., Nagashima, M., Abe, K., Sakai, T., Momota, S., Ozawa, A., Nagae, D., Ishibashi, Y., Abe, Y., Niwa, T., Nagatomo, T., Minamisono, T., Kubo, M. K., Kitagawa, A., Torikoshi, M., Kanazawa, M., Sato, S.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.05.2013
• Subjects: Atomic; Condensed Matter Physics; Hadrons; Heavy Ions; Molecular; Nuclear Physics; Optical and Plasma Physics; Physics; Physics and Astronomy; Surfaces and Interfaces; Thin Films; Heavy ion reactions; NMR; Polarized unstable nuclei
• ISSN: 0304-3843; 1572-9540
• DOI: 10.1007/s10751-013-0869-7

Production of spin polarized short-lived nucleus 12 N ( I π = 1  +  , T 1/2 = 11 ms) using heavy ion reactions at intermediate energies has been performed. Typical polarization of about −25 % and +10 % through the projectile fragmentation Be( 14 N, 12 N)X and the charge exchange CH 2 ( 12 C, 12 N)X processes, respectively, was obtained. The present study proved that the combination of a 12 C beam and a proton target provides a fairly good quality of polarized 12 N beam in terms of intensity and energy uniformity, and is promising for materials science use of 12 N as a nuclear probe.