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prompt fission neutron logging
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prompt fission neutron logging
Encyclopedia
理学
铀矿放射性测井
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prompt fission neutron logging
瞬发裂变中子测井
在井孔中开展的中子测量方法。该法利用脉冲中子源向钻孔周围的地层发射快中子,快中子被地层慢化后形成热中子群,热中子引发地层235U发生裂变反应,探测裂变反应过程中瞬时(约10-14秒)发射出来的裂变中子,该裂变中子称为瞬发裂变中子(约占235U裂变反应所能发射的全部裂变中子总量的99%以上),故称瞬发裂变中子测井。
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bilaterally bounded sequence
bilaterally invariant
bilateral maritime agreement
bilateral network
bilateral observation
Bi-lateral Resource Integration Service
bilateral series
bilateral shift operator
bilateral surface
bilateral symmetry
bilateral transfer
bilateral transformation
bilateral Z-transform
bilayer
bilayer graphene
bilayer graphene; double layer graphene
bilayer graphene; double-layer graphene
bilayer lipid membrane
bilayer structure
Bilbao
Bilbao International Documentary and Short Film Festival
bilby
Bilderberg continuum atmosphere model
bile
bile acid
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