An electron paramagnetic resonance and electron nuclear double resonance study was made of 2 radiation-induced defects in material which was doped with Sr2+. The use of X-irradiation at room temperature produced a large number of F centers, as compared with undoped material, plus an impurity-related hole center of Br2--type. An electron nuclear double resonance investigation of the F center yielded superhyperfine interaction constants for the first 2 shells of neighbors. The Br2--type hole center had properties which were very similar to those of the H<100>DD center in KCl:Sr2+. Unlike the centers in KCl, which decayed thermally at 255K, the HDD center in NaBr was stable at room temperature.

Investigation of Radiation-Induced Defects in NaBr:Sr2+. M.I.G.Molina, T.Pawlik, J.M.Spaeth: Physica Status Solidi B, 2001, 202[2], 993-8