Jia̍t-hu̍t bú-khì

Jia̍t-hu̍t bú-khì (Eng-gí: thermonuclear weapon) sī chi̍t khoán tē-jī tāi ê hu̍t-chú bú-khì, thoân-thóng siōng sī lī-ēng tē-it tōaⁿ hu̍t-chú hun-lia̍t chà-tān lâi ín khí tē-jī tōaⁿ ê hu̍t-chú iông-ha̍p hoán-èng.

A basic diagram of a thermonuclear weapon.
Note: some designs use spherical secondaries.

1. fission primary stage
2. fusion secondary stage

1. High-explosive lenses
2. Uranium-238 ("tamper") lined with beryllium reflector
3. Vacuum ("levitated core")
4. Tritium "boost" gas (blue) within plutonium or uranium hollow core
5. Radiation channel filled with polystyrene foam
6. Uranium ("pusher/tamper")
7. Lithium-6 deuteride (fusion fuel)
8. Plutonium ("spark plug")
9. Radiation case (confines thermal X-rays by reflection)