Pulse cannon

Tanik possessed a massive pulse cannon which he used in an attempt to disable the Doctor's TARDIS on Smyslov 3. Though it successfully struck the TARDIS with a laser blast, the pulse cannon failed to inflict a lasting effect on the space-time vessel. (PROSE: Wish You Were Here)

Captain Janartis used a pulse cannon when leading an attack on President Romana's supporters at the Gallifreyan Academy. Narvin had Captain Annos use solar panels to absorb the pulse energy. (AUDIO: Warfare)

Behind the scenes
The pulse cannon is a common weapon in science fiction, appearing in both Star Trek and Star Wars.