PT Journal
AU n_TOF Collaboration (Tarrio, Dea
   Domingo-Pardo, C
   Giubrone, G
   Tain, JL
TI Measurement of the angular distribution of fission fragments using a PPAC assembly at CERN n_TOF
SO Nuclear Instruments & Methods in Physics Research A
JI Nucl. Instrum. Methods Phys. Res. A
PY 2014
BP 79
EP 85
VL 743
DI 10.1016/j.nima.2013.12.056
LA English
DE Fission; Neutron; Anisotropy; Angular distribution; Th-232; Gas detectors
AB A fission reaction chamber based on Parallel Plate Avalanche Counters (PPACs) was built for measuring angular distributions of fragments emitted in neutron-induced fission of actinides at the neutron beam available at the Neutron Time-Of-Flight (n_TOF) facility at CERN. The detectors and the samples were tilted 45 degrees with respect to the neutron beam direction to cover all the possible values of the emission angle of the fission fragments. The main features of this setup are discussed and results on the fission fragment angular distribution are provided for the Th-232(n,f) reaction around the fission threshold. The results are compared with the available data in the literature, demonstrating the good capabilities of this setup.
ER