Digamma Radiation

Digamma Radiation (symbol: Ϝ; shortened: DRX, counted in mDRX and mDRX/s) is a (fictional) incremental effect that only targets entities, not inanimate objects, unlike regular radiation. It is not a spectrum of waves or charged particles per se, so even the densest of materials will not shield you from it. It is only carried by items and does not "travel" far, so it does not enter the environment.

Exposure
Only certain items give you DRX. The Digamma Particle gives off 333.3 mDRX/s, the Balefire Bomb 10 mDRX/s, and stock Digamma Fuel 100 mDRX/s.

Only FAU Armor can completely shield you from DRX.

Effects
While being exposed to DRX, it looks like you're constantly being attacked or taking damage. This is due to it removing your max HP. This stops as soon as your exposure stops. At high levels of exposure, you emit Soul Sand particles.

Detection
DRX can be noticed if your max HP is lower than expected or normal. For more precise counts, a Digamma Diagnostic can be crafted, which functions similarly to a Geiger Counter.

It takes one Geiger counter, 1 Asbestos sheet, and 1 Polonium-210 billet.

Explanation
It has been theorized that DRX is some kind of psionic effect that alters brain waves, resulting in anxiety and mental illnesses. This would be why it cannot be easily blocked out and why it only affects living entities.

Removal
DRX, as a mind affecting "thing", is difficult to remove. Varying levels of Xanax medication can remove Digamma to varying levels of effectiveness.

All use shapeless crafting

NAXA Anti-Digamma Medication
Removes 500 mDRX.

Coal powder, Bromine powder, Niter.

Flunitrazepan Tablet
Removes all DRX above 2,000 mDRX.

Coal powder, Polonium-210 powder, Strontium powder.

Enteramine Pills
Removes all DRX, grants Stability (status effect giving immunity to DRX) for 10 minutes.

Coal powder, Euphemium powder, Fabulous Vodka.

Trivia
A red, practically stationary celestial object can be seen on the sky both at day and night. Judging by the texture's name in the mod files, being star_digamma.png, we can assume that it may have ties to Digamma Radiation.