The target ordeals higher cyclic heating and cooling costs for the duration of operation, plus the tungsten-rhenium alloy is far more immune to cracking and failure than pure tungsten could be.
The boron (Fluka 15580) https://jonaslkxr660449.blogunok.com/29578739/the-fact-about-global-trade-in-food-and-resources-that-no-one-is-suggesting