Proton Grenade

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Protonic Grenade'''
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Protonic Grenades or Proton Grenades also known as Proton Charges were small packets of explosives that were either thrown by hand, loaded into mortars, and sometimes loaded into a ( )'s bombing bay. These grenades were activated by flipping a small switch on one side, and exploded on contact. '''
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It also has special micro-sensors programmed to detected the grenade when they come in close contact with PKE that out of phase with reality. Basically if the grenade comes in close contact with a incorporeal entity or ghost that are intangible the sensors which trigger the explosive. 
When detonated the Proton Grenade releases highly bust of protonic energy capable of destroying lesser spiritual entities and stunning more powerful entities. 
See:
Protonic Explosives
Boson Bomb