  Three spare modules of the ATLAS Tile Calorimeter were exposed to test beams
from the Super Proton Synchrotron accelerator at CERN in 2017. The measurements
of the energy response and resolution of the detector to positive pions and
kaons and protons with energy in the range 16 to 30 GeV are reported. The
results have uncertainties of few percent. They were compared to the
predictions of the Geant4-based simulation program used in ATLAS to estimate
the response of the detector to proton-proton events at Large Hadron Collider.
The determinations obtained using experimental and simulated data agree within
the uncertainties.

Instrumentation and Detectors;High Energy Physics - Experiment;High Energy Physics - Phenomenology