An Inelastic Neutron Spectrometer at ANSTO; from Longpol to Pelican and beyond

Dehong Yu and Shane Kennedy, Bragg Institute, ANSTO, Australia

LONGPOL, the only inelastic neutron scattering instrument with polarization analysis in ANSTO, has served Australian scientific community for more than 30 years and it has officially retired recently, along with the transition of the old reactor HIFAR to the new OPAL reactor. Three new inelastic scattering instruments with polarization analysis option are now under development at the OPAL reactor. In addition to two triple axis instruments, a new instrument called Pelican using the combination of crystal monochromator and time of flight techniques with polarization analysis option will carry on and extend the capabilities of LONGPOL. A general introduction and discussion about the conceptual design on Pelican will be given.

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