WHULorigan
Emperor Mongoose
Here is the Warhammer 40K Wiki Entry:
A Neutron Laser is a heavy weapon utilised by the forces of Adeptus Mechanicus' Skitarii Legions as a primary weapon for Onager Dunecrawlers. A Neutron Laser is the last word in battlefield anti-tank weaponry.
With a stabilised neutronic coil arc reactor as its power source, a Neutron Laser is able to fire a particle beam so devastating that it not only is able to punch through the thickest of armour, but also sends a blast wave of electromagnetic energy that scrambles circuits and synapses alike when it strikes its target.
A Neutron Laser can also be used as a Titan-grade weapon that was deployed on the carapace mounts of Dire Wolf-class Heavy Scout Titans during the Horus Heresy.
With a stabilised neutronic coil arc reactor as its power source, a Neutron Laser is able to fire a particle beam so devastating that it not only is able to punch through the thickest of armour, but also sends a blast wave of electromagnetic energy that scrambles circuits and synapses alike when it strikes its target.
A Neutron Laser can also be used as a Titan-grade weapon that was deployed on the carapace mounts of Dire Wolf-class Heavy Scout Titans during the Horus Heresy.