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α崩壊 (arufahoukai) Japanese meaning: alpha decay | Kotomora

α崩壊あるふぁほうかい

ア

ル

ファ

ほ

う

か

い

Meanings

1

alpha decay

A type of radioactive decay in which an atomic nucleus emits an alpha particle. Technical term used in physics.

ウラン238はα崩ほう壊かいによってトリウム234に変かわる

。

Uranium-238 transforms into thorium-234 through alpha decay.

Kanji

崩crumble, die, demolish
壊demolition, break, destroy

Related words

β崩壊べーたほうかい
Beta decay, another type of radioactive decay where a beta particle is emitted.
γ崩壊がんまほうかい
Gamma decay, involving the emission of gamma rays, often following alpha or beta decay.

Written forms

α崩壊あるふぁほうかい
Standard scientific notation using the Greek letter alpha.
アルファ崩ほう壊かい
Kana spelling of the alpha part; used when Greek letters are unavailable or in less technical contexts.

Etymology

Compound of α (alpha) and 崩壊 (collapse, decay). A direct calque of English 'alpha decay'.