  The 48Ca({\gamma},n) cross section was measured using {\gamma}-ray beams of
energies between 9.5 and 15.3 MeV generated at the Triangle Universities
Nuclear Laboratory (TUNL) high-intensity {\gamma}-ray source (HI{\gamma}S).
Prior to this experiment, no direct measurements had been made with
{\gamma}-ray beams of sufficiently low energy spread to observe structure in
this energy range. The cross sections were measured at thirty-four different
{\gamma}-ray energies with an enriched 48Ca target. Neutron emission is the
dominant decay mechanism in the measured energy range that spans from
threshold, across the previously identified M1 strength, and up the low-energy
edge of the E1 giant dipole resonance (GDR). This work found B(M 1) = 6.8 \pm
0.5 {\mu}N2 for the 10.23 MeV resonance, a value greater than previously
measured. Structures in the cross section commensurate with extended
random-phase approximation (ERPA) calculations have also been observed whose
magnitudes are in agreement with existing data.
