RADIATION_DECAY
This is the amount of radiation that can be "slept off" per game tick. It is meant to be slow, but it still decays faster than you can gain it while awake when using the default 0.01 value.

RADIATION_DAMAGE
Multiplier for the actual health damage done per 100 ticks. Default = 1. Increase or decrease as you see fit, but needs to be above 0.

RESPAWN_RADIATION
Your player will respawn with this amount of radiation already accumulated throughout their life (or perhaps from the magical respawn box). Default = 22.

RADIATION_RATE
Multiplier for the rate at which radiation accumulates. Default = 1

Change REACTOR_RADIATION_ENABLED and/or REACTOR_DECAY_HEAT_ENABLED to true to enable those functions.
Toggle with /crreactor and /crheat, respectively.

REACTOR_MIN_INTEGRITY
This is set to 0.8 (80%) by default, to match the point at which vanilla reactors are broken. The actual leakage starts slowly at 79.999% with a very, very slow radiation leak. The radiation released doubles for every additional 10% damage to the reactor. A reactor with 1000 uranium and very little integrity left can give you a fatal does of radiation you in seconds if you get close enough. Needs to be a decimal between 0 and 1. Do not use a % sign.

REACTOR_RADIATION_RATE
Multiplier for the amount of radiation leaking from damaged reactors. Default = 1.

REACTOR_DECAY_HEAT_BASE
This is the raw value for the heat damage per unit of uranium inside the damaged reactor. If you have 1000 uranium in a nearly destroyed reactor, it will do up to 100 points of damage every 1.67 seconds to any fool standing 1 meter away using the default 0.01 value.

REACTOR_DECAY_HEAT_RATE
Multiplier for the amount of heat released by the damaged reactors. Default = 1