Author/Authors :
Brudanin، نويسنده , , V.B. and Filossofov، نويسنده , , D.V. and Kochetov، نويسنده , , O.I. and Korolev، نويسنده , , N.A. and Milanov، نويسنده , , M. and Ostrovskiy، نويسنده , , I.V. and Pavlov، نويسنده , , V.N. and Salamatin، نويسنده , , A.V. and Timkin، نويسنده , , V.V. and Velichkov، نويسنده , , A.I. and Fomicheva، نويسنده , , L.N. and Tsvyaschenko، نويسنده , , A.V. and Akselrod، نويسنده , , Z.Z.، نويسنده ,
Abstract :
A four-detector spectrometer of perturbed angular γγ correlations is developed for investigation of hyperfine interactions in condensed matter. It allows measurements with practically any type of detectors. A unique circuit design involving a specially developed Master PAC unit combined with a computer allows a substantially higher efficiency, reduced set-up time and simpler operation in comparison with traditional PAC spectrometers. A cryostat and a high-temperature oven allow measurements in the temperature range from 120 to 1300 K. An encased electromagnet makes it possible to generate a magnetic field up to 2 T on a sample. The measurement system includes a press with a specially designed high-pressure chamber allowing on-line PAC measurements in samples under pressure up to 60 GPa.
Keywords :
Delayed coincidence , hyperfine interactions , high pressure , TDPAC spectrometer
