LET - LET

Japanese: LET - エルイーティー

It is an abbreviation for linear energy transfer, and is sometimes translated as linear energy transfer loss. When charged particle radiation enters a material, the energy of the radiation is lost through collisions between the incident charged particle and electrons and atomic nuclei in the material. At this time, the rate of radiation energy lost per unit length along the path that the charged particle travels through the material is called the stopping power, and stopping power changes with changes in the energy of the incident radiation.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

linear energy transferの略で，線エネルギー付与損失と訳されることもある。荷電粒子放射線が物質中に入射すると，放射線の持つエネルギーは，入射荷電粒子と物質中の電子や原子核との衝突によって失われる。このとき，荷電粒子が物質中を進む経路に沿っての単位長さ当りに失われる放射線エネルギーの割合を阻止能stopping powerと呼ぶが，阻止能は入射放射線のエネルギーの変化とともに変化する。

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