ENTRY 31443 20240216 3144300000001 SUBENT 31443001 20240216 20240513 3144300100001 BIB 14 37 3144300100002 TITLE Experimental study of the prompt neutron spectra of 3144300100003 238U fission induced by fast neutrons 3144300100004 AUTHOR (Li An-li, Bai Xi-xiang, Wang Xiao-zhong, Wang Yu-feng,3144300100005 Meng Jiang-chen, Liu Wei-ping, Yuan Yuan, Chih Ta-hai,3144300100006 Huang Sheng-nian) 3144300100007 INSTITUTE (3CPRAEP) 3144300100008 REFERENCE (J,CNP,16,255,1994) 3144300100009 REL-REF (M,,Li Anli+,J,CNST,5,71,1994) 3144300100010 Experimental technique 3144300100011 FACILITY (VDG,3CPRAEP) 3144300100012 INC-SOURCE (D-D) Deuterium gas cell (4.3 atm) with a 7.4 MeV 3144300100013 pulsed deuteron beam 3144300100014 SAMPLE Natural uranium electrodeposited on both sides of 3144300100015 0.2 mm thick plates of stainless steel with 3144300100016 deposition thickness of ~0.5 mg/cm2 3144300100017 DETECTOR (IOCH,SCIN) Fission fragments detected by a 3144300100018 paralell-plate ionization chamber operated in 3144300100019 multisegment mode and filled with pure methane at 3144300100020 4.3 atm. 3144300100021 (SCIN) Fission neutrons detected by two liquid 3144300100022 scintillators both placed at 100 deg with respect to 3144300100023 neutron beam and at 2.3 m from the ionization chamber 3144300100024 (SCIN) Liquid scintillator at 0 deg and 3.1 m 3144300100025 downstream of the gas cell served as monitor of the 3144300100026 incident-neutron TOf spectrum. 3144300100027 METHOD (TOF,COINC) Fission neutrons selected by requiring 3144300100028 coincidence between neutron and fission fragment 3144300100029 detector events which also provided the 3144300100030 fission-neutron TOF spectra 3144300100031 (PSD) to eliminate gamma-ray background 3144300100032 ANALYSIS Measured spectrum fitted by Maxwellian distribution 3144300100033 ERR-ANALYS (DATA-ERR) Counting statistics and detector efficiency 3144300100034 STATUS (TABLE,,Li An-li+,J,CNP,16,255,1994) Table 1 3144300100035 HISTORY (19941107C) HW 3144300100036 (20100219U) SD: Updated to new date formats, lower case3144300100037 (20100303A) SD: REACTION code in Subent 002 3144300100038 (20240216U) On. REFERENCE(CNP): Issue number deleted. 3144300100039 ENDBIB 37 0 3144300100040 NOCOMMON 0 0 3144300100041 ENDSUBENT 40 0 3144300199999 SUBENT 31443002 20100306 31443144300200001 BIB 2 3 3144300200002 REACTION (92-U-238(N,F)0-NN-1,PR,KE) 3144300200003 HISTORY (20100303A) SD: REACTION code was changed 3144300200004 according to EXFOR rules. 3144300200005 ENDBIB 3 0 3144300200006 NOCOMMON 0 0 3144300200007 DATA 3 2 3144300200008 EN DATA DATA-ERR 3144300200009 MEV MEV MEV 3144300200010 10.17 2.10 0.06 3144300200011 12.12 2.21 0.06 3144300200012 ENDDATA 4 0 3144300200013 ENDSUBENT 12 0 3144300299999 ENDENTRY 2 0 3144399999999