A difference between biological effects of gamma rays and heavy ions.
When irradiated with gamma rays, Arteinia eggs show the typical sigmoidal survival curve of a multicellular organism, with little change at low doses and an abrupt decrease in survival above a threshold dose. On irradiation with 160-Mev oxygen ions, the threshold disappears and viability can be destroyed by passage of a single energetic ion.
D004307:Dose-Response Relationship, Radiation; D005720:Gamma Rays; D020450:Heavy Ions; D007477:Ions; D010100:Oxygen; D011830:Radiation Effects
D007477:Ions; D010100:Oxygen
RADIATION EFFECTS/experimental