AUTOMATIC MOSSBAUER SPECTROMETER TO DETECT GAMMA-QUANTA, CONVERSION ELECTRONS, AND CHARACTERISTIC X-RAYS

This spectrometer generates Mossbauer spectra with the simultaneous de tection of gamma-quanta in the transmission geometry and characteristi c X-rays, the spectrometer also detects conversion and Auger-electrons in the backward-scattering geometry. The spectrometer is based on a d etector which can simultaneously detect these radiations. The temperat ure of the specimen may vary froin 100 to 750-degrees-K. The electroni cs of the spectrometer fits the CAMAC standard and is computer control led. A high-precision unit determines the motion of the Doppler modula tor. Pulses from the detector chambers are input to three spectrum sto rage units after being amplified and after amplitude selection, the de ad time of the storage units is under 5 nsec.