[en] The AFRRI TRIGA Mark F reactor has, since 1965, played an important role in the radiobiological research conducted at AFRRI. The purpose of this paper is to describe the experimental facilities and dosimetry techniques used in support of these radiobiology programs and to present a brief summary of current programs. The AFRRI TRIGA exposure facilities were designed to be especially suitable for biological irradiations and, as a result, exhibit several important and interesting features. Reactor dosimetry in the exposure rooms includes the measurement of neutron and gamma reactor spectra, dose, dose rate, neutron-to-gamma ratio and depth dose distribution. These parameters are routinely measured at AFRRI using: threshold detectors; paired 50 cm³; 0.5 cm³ and miniature 0.05 cm³ ionization chambers; tissue equivalent phantoms; and specimen cadavers. (author)