A magnetic lens spectrometer was used to investigate the gamma radiation produced by the deuteron bombardment of ${\mathrm{C}}^{13}$ enriched carbon targets. A study of the Compton electron spectra from a thin Al converter at $E_d=1.42\mathrm{}$ Mev revealed the following gamma lines (energies in kev, not corrected for possible Doppler shift): 4930±40, 5130±30, 5730±30, 6120±25. A weak line at 3910±50 kev was established with the spectrum from a thick Al converter. At $E_d=1.9\mathrm{}$ Mev, additional lines appeared at 6450±50, 6730±40, and 811±3 kev. The last-named was identified by photoelectrons from a thorium converter. No new lines were discovered at $E_d=2.7\mathrm{}$ Mev. The well-known 6.12-Mev line is from ${\mathrm{C}}^{14*}$, as are probably the 6.73- and 0.811-Mev lines. All others correspond to known levels of ${\mathrm{N}}^{14}$.

• Received 30 December 1954

DOI:https://doi.org/10.1103/PhysRev.98.43