SPECTROMETRE DE MOSSBAUER

The Mössbauer spectrometer comprises a source (1) of gamma rays, mounted on a vibrator (2), and, successively arranged along the path (A) of gamma rays, an absorber (3) of gamma radiation and a detector (4) of gamma radiation having its output connected, via an amplification and amplitude selection unit (5), to the input (6) of a switching unit (7) whose control input (23) is connected to the output of a monostable multivibrator (22) and whose output is connected to the input (8) of a multichannel analyser (9) having its address signal and triggering signal inputs (10, 14) connected, respectively, to the address signal and triggering signal outputs (11, 13) of a master oscillator (12). The reference signal output of the master oscillator (12) is connected through signal error and power amplifiers (16, 20), respectively, with the master coil (21) of the vibrator (2). Signal error amplifier (16) is also connected to receive a vibrator speed signal from transmitter 18, and the amplifier 16 output is connected to an error signal analyser 19, the output of which is the input of the monostable multivibrator (22).