辐射调节剂（Moderators）是一类固体或液体，可以放置在反应堆内部，用于吸收部分辐射，并传递燃料棒上的热量。
通常情况下，越珍贵或越难制造的方块/流体会有更好的表现。
只有合法的辐射调节剂可以放置在反应堆内部，否则多方块结构将不会成型；
如果该方块或流体可以作为辐射调节剂，那么在玩家开启高级提示框（F3+H）后，将会看到提示：“极限反应堆：该方块或流体可以作为反应堆内的辐射调节剂来使用”。
注：如果要查看流体的提示，需要寻找桶装流体，而不是该流体。
下表展示了该模组默认注册的辐射调节剂（来自源码）：
Absorption:有多少辐射可以被该材料吸收并转化为热量。范围：[0,1]
heatEfficiency:辐射转化为热量的效率。范围：[0,1]
moderation:这种材料调节辐射的效果。因为在代码中，它作为一个除数，因此大小不小于1.
heatConductivity:这种材料的导热效果如何。（FE/t/m2）
| 物品标签 | Absorption | heatEfficiency | moderation | heatConductivity |
|---|---|---|---|---|
| minecraft:air | 0.1 | 0.25 | 1.1 | 0.05 |
| forge:storage_block/apatite | 0.48 | 0.73 | 1.3 | 0.15 |
| forge:storage_block/cinnabar | 0.48 | 0.75 | 1.32 | 0.15 |
| forge:storage_blocks/iron | 0.5 | 0.75 | 1.4 | 0.6 |
| forge:storage_blocks/manasteel | 0.6 | 0.75 | 1.5 | 0.6 |
| forge:storage_blocks/elementium | 0.61 | 0.77 | 1.52 | 2.5 |
| forge:storage_blocks/nickel | 0.51 | 0.77 | 1.4 | 0.6 |
| forge:storage_blocks/gold | 0.52 | 0.8 | 1.45 | 2 |
| forge:storage_blocks/diamond | 0.55 | 0.85 | 1.5 | 3 |
| forge:storage_blocks/netherite | 0.55 | 0.95 | 1.65 | 3 |
| forge:storage_blocks/terrasteel | 0.57 | 0.87 | 1.52 | 3 |
| forge:storage_blocks/emerald | 0.55 | 0.85 | 1.5 | 2.5 |
| forge:glass/colorless | 0.2 | 0.25 | 1.1 | 0.3 |
| forge:storage_blocks/copper | 0.5 | 0.75 | 1.4 | 1 |
| forge:storage_blocks/brass | 0.52 | 0.78 | 1.42 | 1 |
| forge:storage_blocks/osmium | 0.51 | 0.77 | 1.41 | 1 |
| forge:storage_blocks/refined_obsidian | 0.53 | 0.79 | 1.42 | 1 |
| forge:storage_blocks/refined_glowstone | 0.54 | 0.79 | 1.44 | 2.5 |
| forge:storage_blocks/bronze | 0.51 | 0.77 | 1.41 | 1 |
| forge:storage_blocks/zinc | 0.51 | 0.77 | 1.41 | 1 |
| forge:storage_blocks/aluminum | 0.5 | 0.78 | 1.42 | 0.6 |
| forge:storage_blocks/steel | 0.5 | 0.78 | 1.42 | 0.6 |
| forge:storage_blocks/invar | 0.5 | 0.79 | 1.43 | 0.6 |
| forge:storage_blocks/tin | 0.5 | 0.73 | 1.38 | 1.5 |
| forge:storage_blocks/silver | 0.51 | 0.79 | 1.43 | 1.5 |
| forge:storage_blocks/signalum | 0.51 | 0.75 | 1.42 | 1 |
| forge:storage_blocks/lumium | 0.51 | 0.79 | 1.45 | 1.5 |
| forge:storage_blocks/lead | 0.75 | 0.75 | 1.75 | 1.5 |
| forge:storage_blocks/electrum | 0.53 | 0.82 | 1.47 | 2.2 |
| forge:storage_blocks/platinum | 0.57 | 0.86 | 1.58 | 2.5 |
| forge:storage_blocks/enderium | 0.6 | 0.88 | 1.6 | 3 |
| forge:storage_blocks/graphite | 0.1 | 0.5 | 2 | 2 |
| minecraft:ice | 0.33 | 0.33 | 1.15 | 0.1 |
| bigreactors:dry_ice | 0.42 | 0.52 | 1.32 | 0.1 |
| bigreactors:cryomisi | 0.75 | 0.55 | 1.6 | 2.5 |
| bigreactors:cryomisi_flowing | 0.68 | 0.49 | 1.4 | 2.5 |
| bigreactors:tangerium | 0.9 | 0.75 | 2 | 2 |
| bigreactors:tangerium_flowing | 0.84 | 0.69 | 1.7 | 2 |
| bigreactors:redfrigium | 0.66 | 0.95 | 6 | 3 |
| bigreactors:redfrigium_flowing | 0.57 | 0.86 | 5 | 3 |
| minecraft:water | 0.1 | 0.25 | 1.1 | 0.05 |
| minecraft:flowing_water | 0.1 | 0.25 | 1.1 | 0.05 |
| astralsorcery:liquid_starlight | 0.92 | 0.8 | 2 | 3 |
| astralsorcery:liquid_starlight_flowing | 0.8 | 0.85 | 2 | 3 |
| bloodmagic:life_essence_fluid | 0.8 | 0.55 | 1.75 | 2.5 |
| bloodmagic:life_essence_fluid_flowing | 0.7 | 0.55 | 1.75 | 2.5 |
| mekanism:hydrofluoric_acid | 0.68 | 0.45 | 1.4 | 2.5 |
| mekanism:flowing_hydrofluoric_acid | 0.6 | 0.45 | 1.4 | 2.5 |
| mekanism:sodium | 0.28 | 0.6 | 1.7 | 1 |
| mekanism:flowing_sodium | 0.23 | 0.6 | 1.7 | 1 |
| mekanism:hydrogen_chloride | 0.38 | 0.65 | 1.7 | 1 |
| mekanism:flowing_hydrogen_chloride | 0.31 | 0.65 | 1.7 | 1 |
| mekanism:ethene | 0.45 | 0.65 | 1.9 | 1.5 |
| mekanism:flowing_ethene | 0.37 | 0.65 | 1.9 | 1.5 |
| thermal:ender | 0.92 | 0.76 | 2.02 | 2 |
| thermal:ender_flowing | 0.9 | 0.75 | 2 | 2 |
| thermal:redstone | 0.77 | 0.56 | 1.61 | 2.5 |
| thermal:redstone_flowing | 0.75 | 0.55 | 1.6 | 2.5 |
注：本表中的物品可能会随版本变化而有所变化。
