[en] The Radiation Calibration Laboratory (RADCAL) facility at ORNL was designed to facilitate calibration of instruments and dosimeters in support of work related to the Health Physics Research Reactor. Its role has expanded to include standard dosimeter testing, basic dosimeter research, radiobiology research, and personnel training. The facility is currently operational with two gamma sources, two neutron sources (polyethylene moderated Cf-252 and a PuBe source), and a Sr-Y beta source. A 320 kV x-ray machine is on order and is due for delivery before the end of the year. Also, two heavy water spheres are under construction to provide a standardized source of moderated fission neutrons. An official dedication ceremony is scheduled early in the second quarter of 1989 and it is hoped all sources will be fully operational at that time. This facility provides a major new tool for research in dosimetry at ORNL and is available as a user facility to qualified participants