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γ崩壊 (ganmahoukai) Japanese meaning: gamma decay | Kotomora

γ崩壊がんまほうかい

ガ

ン

マ

ほ

う

か

い

Meanings

1

gamma decay

Physics term for a type of radioactive decay in which an excited nucleus emits a gamma ray.

γ崩ほう壊かいでは、原げん子し核かくから高こうエネルギーの

光こう

子し

が

放ほう

出しゅつ

さ

れる

。

In gamma decay, a high-energy photon is emitted from the atomic nucleus.

Kanji

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

Related words

α崩壊あるふぁほうかい
Alpha decay, where an alpha particle (helium nucleus) is emitted, unlike gamma decay which emits a photon.
β崩壊べーたほうかい
Beta decay, involving emission of an electron or positron, distinct from gamma decay.

Written forms

γ崩壊がんまほうかい
Standard technical spelling using the Greek letter γ.
ガンマ崩ほう壊かい
Kana spelling of the Greek letter; common in less technical contexts or when Greek letters are unavailable.

Etymology

Compound of γ (gamma) and 崩壊 (collapse/decay). The term is a direct translation of the English 'gamma decay', used in nuclear physics.