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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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wide area network, WAN
wide area protection
wide-area protection for distribution network
wide-area species of Chinese materia medica
wide-azimuth seismic
wide band
wideband
wide-band amplifier
wideband beam
wideband code division multiple access
wideband code division multiple access, WCDMA
wide-band coherent light modulator
wide band filter
wide-band gap materials
wide bandgap semiconductor
wide band gap semiconductor power device
Wideband Global Satellite
wide-band noise
wide band photometry
wideband radar scanner
wideband receiver
wide-band seismic
wide band semiconductor
wide-band semiconductor
wide-band signal
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