title: Mechanical approach to the neutrons spectra collimation and detection.
abstract: Neutrons spectra from most of known sources require being collimated for numerous applications; among them one is the Neutron Activation Analysis. High energy neutrons are collimated through a mechanical procedure as one of the most promising methods. The output energy of the neutron beam depends on the velocity of the rotating Polyethylene disks. The collimated neutrons are then measured by an innovative detection technique with high accuracy.
authors.affiliation: Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Sadeghi
authors.affiliation: Energy Engineering and Physics Department, Amirkabir University of Technology, Tehran, Iran.
authors.forename: M V
authors.initials: MV
authors.lastname: Roshan