Omicron radiation Omicron radiation is an energy form which can only be created by certain forms of matter - antimatter reaction s , and which can be toxic to certain forms of humanoid life . Extremely rare , omicron particles can be utilized in holography and to replenish antimatter reserves . ( ; ; ; ) The warp core of the Vissian starship which encountered in 2153 produced omicron radiation . This necessitated an inoculation be given to Commander Tucker to permit him to visit the Vissian s ' engineering section . When Tucker asked Doctor Phlox how long the inoculation would last , Phlox responded that it should protect him from omicron radiation for " about twelve years . " ( ) Later that year , Doctor Phlox was attacked by a member of a mysterious , cybernetic species , and infected with a series of aggressive nanoprobe s as part of a process to transform Phlox into a member of this species . Discovering that the nanoprobes ' intramolecular processor s were vulnerable to omicron particles , Phlox exposed himself to an excessive dose , a process which , while successful , caused Phlox a great amount of discomfort . ( ) Also in that year , when attempting to discover a way to disable the organic power cell s in Xindi - Reptilian particle rifle s , Tucker and Phlox began bombarding them with different forms of radiation , and discovered that omicron radiation caused the cells to reproduce at an accelerated rate . ( ) Yaderan holographic technology utilized manipulated omicron particle fields to generate physical objects . in 2370 , Lieutenant Jadzia Dax and Constable Odo discovered a colony on a planet in the Gamma Quadrant , all of whose inhabitants where holographic characters created in such a matter , save for one : Rurigan , who utilized the technology to recreate his friends and family after fleeing the Dominion . ( ) In 2371 , the crew of the entered a nebula in which they had detected unusually high levels of omicron particles , hoping to collect the particles to provide an additional antimatter reserve . It was eventually determined , however , that the phenomenon was not , in fact , a nebula , but rather an enormous lifeform which utilized omicron particles in its circulatory system . Realizing that they had seriously injured the lifeform upon entering it , Captain Janeway ordered " Voyager " into the being ' s wound , allowing the ship , the energy systems of which were compatible with omicron particles , to serve as an energy conduit across the wound , facilitating a regeneration of the damaged tissue . Directing two nucleonic beam s fore and aft , parallel to the central axis of the ship , the crew of " Voyager " were successfully able to heal the lifeform which they had inadvertently wounded . ( ) In 2374 , Commander Chakotay , " Voyager " s first officer , detected omicron radiation in the atmosphere of a planet while on a survey mission . Moving in to investigate , Chakotay was shot down by a species called the Vori , who attempted to to conscript him into their conflict against the Kradin , using a series of sophisticated mind control techniques . ( ) In 2378 , " Voyager " crewmember Icheb was injured by what appeared to be a weapon of Chokuzan design , his s having been necrotized by a form of omicron radiation . It was later revealed , however , that the Chokuzan who had attacked the vessel on which Icheb was a passenger was actually Q , who was subjecting his son to a test of character by seemingly injuring Icheb , who was his son ' s best friend . ( )