Space Radiation: Central Nervous System Risks
The central nervous system which consists of the brain, spinal cord, and retina.
The energy absorbed per unit mass in units of gray (Gy) where 1 Gy = 1 J/kg.
A region of the brain in the temporal lobe associated with learning and memory. It has a well-defined layered anatomy that facilitates electrophysiological studies and is associated with numerous animal behavioral tests.
High charge (= atomic number, Z) energetic particles.
- LET or linear energy transfer
The energy deposited per unit length of a charged particle’s track and is proportional to Z2/v2 where Z is the charge and v is the velocity.
Long-term potentiation, a long-term elevation of synaptic strength in response to stimulation, which represents a tissue-level analog to memory trace formation.
- MeV or million electron volts
The energy acquired by an electron moving across a voltage of 106V and, when divided by the mass of a particle in atomic mass units (amu, u or n), is the standard...
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