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单词 photofission
释义

photofission /ˌfəutəu'fiʃən/

英汉-汉英词典
n. 光致(核)裂变
词组 | 习惯用语
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  • profession n. 职业;声明;行业;信仰
  • photosynthesis n. 光合作用
  • photosensitive adj. 感光性的
  • photofinishing n. 照相洗印加工,照相洗印服务

网络短语:
uranium photofission 铀分裂
threshold photofission 光致分裂低限
photofission product 光致裂变产物
photofission cross section 光致裂变截面
英语百科

Photofission

Photofission is a process in which a nucleus, after absorbing a gamma ray, undergoes nuclear fission (splits into two or more fragments).

Gamma radiation of modest energies, in the low tens of MeV, can induce fission in traditionally fissile elements such as the actinides uranium, plutonium, and neptunium. Experiments have been conducted with much higher energy gamma rays, finding that the photofission cross section varies little within ranges in the low GeV range.

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