Reverse Time-of-Flight Fourier Technique for Strain Measurements

Fourier type correlation spectrometers at reactors allow strain measurements by neutron time-of-flight diffractometry. For instruments of this type intensity and resolution are independent. Data acquisition is done by on-line correlation, which is possible in the reverse-timeof-flight Fourier (RTOF) mode. A spectrometer designed for strain measurements is now operating at the 5 MW FRG-1 research reactor at GKSS Geesthacht.