Portable directional device for locating neutron emitting sources

A method for determining a direction of travel of a neutron emitted from a source, the method comprising:

• receiving an incoming neutron using a chamber that contains a nucleus that recoils along a direction of travel of the incoming neutron upon interacting with the incoming neutron;
• ionizing atoms in the chamber to release electrons along the direction of travel of the incoming neutron;
• emitting photons from an electron-interaction material upon interacting with the released electrons along the direction of travel of the incoming neutron;
• creating an image of the emitted photons using an imager, the image comprising a path having the direction of travel of the incoming neutron;
• and
• sensing an orientation of the imager using an orientation sensor coupled to the imager in order to relate the direction of travel of the incoming neutron to the orientation of the imager.

A non-transitory computer readable medium comprising computer executable instructions for determining a direction of travel of a neutron emitted from a source by implementing a method comprising:

• receiving an image created by an imager comprising a path having the direction of travel of the neutron;
• receiving an orientation sensed by an orientation sensor attached to the imager in order to relate the direction of travel of the incoming neutron to the orientation of the imager;
• and
• determining the direction of travel of the neutron using the received image and the received orientation.