A furnace for high temperature perturbed angular correlation measurements

Abstract A compact furnace for perturbed angular correlation (PAC) measurements at high temperatures is described. Using a graphite heating element, the furnace combines small dimensions and high temperatures. With an outer diameter of only 23 mm and outer walls at room temperature, it provides sample temperatures up to 2350 K. Test measurements carried out up to this temperature with the standard PAC probe 181 Ta in Zr and Hf metal and in undoped zirconia ZrO 2 show problems arising from interactions of the sample with furnace materials, but at the same time illustrate the great potential of high-temperature PAC spectroscopy for solid state reaction studies.