Аңдатпа
The high-resolution Fourier diffractometer (HRFD) operates at the IBR-2 pulsed reactor, on which the correlation method of data registering has been implemented using a fast Fourier chopper and specialized electronics. A wide-aperture ring back-scattering detector for HRFD has been developed. The detector consists of six [Formula: see text]-scintillation rings, each one of which is divided into 12 sections. Main parameters of this detector: covered solid angle [Formula: see text]; [Formula: see text] sr; average absorption efficiency [Formula: see text], geometric contribution to resolution [Formula: see text]. The concept of a detector and its data acquisition system are presented.