ENTRY 14099 20160315 14161409900000001 SUBENT 14099001 20160315 14161409900100001 BIB 11 29 1409900100002 AUTHOR (B.E.Watt) 1409900100003 TITLE Energy spectrum of neutrons from thermal fission of 1409900100004 U235 1409900100005 REFERENCE (J,PR,87,1037,1952) 1409900100006 #doi:10.1103/PhysRev.87.1037 1409900100007 INSTITUTE (1USALAS) 1409900100008 FACILITY (REAC,1USALAS) The central experimental hole of the 1409900100009 Los Alamos homogeneous reactor. 1409900100010 INC-SOURCE (REAC) Thermal neutron flux. 1409900100011 DETECTOR (TELES) Proton recoil counter. 1409900100012 SAMPLE (92-U-235,ENR=0.95) 28.5 g and 54.1 g of 95 percent 1409900100013 U235 (metal) disks. 1409900100014 METHOD (REC) A proton recoil counter has been used to 1409900100015 determine the neutron spectrum in the energy range 1409900100016 3.3-17 MeV. The data were fitted with the equation 1409900100017 N(En)=5.5 x 10**5 P exp(-En/1.3), where En is neutron 1409900100018 energy in MeV and P is "Water Boiler" reactor power 1409900100019 level in kilowatts (proportional to source strength). 1409900100020 The spectrum produced by the fission in the disks 1409900100021 alone was obtained by subtracting the values given by 1409900100022 the above-mentioned equation from the values obtained 1409900100023 for the beam from the multiple disk source. 1409900100024 ERR-ANALYS (DATA-ERR) No details are given. 1409900100025 HISTORY (20060519C) DR 1409900100026 (20101122A) OS. Reference and reaction corrected 1409900100027 (20140822A) BP: Updated the information, data, doi. 1409900100028 Deleted second subentry, 2 MeV neutrons were not 1409900100029 measured in this paper. 1409900100030 (20160315A) OS. ASSUM replaced by MONIT in sub.3 1409900100031 ENDBIB 29 0 1409900100032 COMMON 1 3 1409900100033 EN 1409900100034 EV 1409900100035 0.0253 1409900100036 ENDCOMMON 3 0 1409900100037 ENDSUBENT 36 0 1409900199999 NOSUBENT 14099002 20140825 14031409900200001 SUBENT 14099003 20160315 14161409900300001 BIB 4 5 1409900300002 REACTION (92-U-235(N,F)0-NN-1,,NU/DE,,REL) 1409900300003 MONITOR (1-H-1(N,EL)1-H-1,,SIG) 1409900300004 STATUS (TABLE) Table II, page 1039. 1409900300005 HISTORY (20140822C) BP 1409900300006 (20160315A) ASSUMED replaced by MONITOR 1409900300007 ENDBIB 5 0 1409900300008 NOCOMMON 0 0 1409900300009 DATA 4 14 1409900300010 E DATA DATA-ERR MONIT 1409900300011 MEV ARB-UNITS ARB-UNITS B 1409900300012 3.30 1.143E+06 1.500E+04 2.18 1409900300013 4.46 5.400E+05 8.000E+03 1.75 1409900300014 5.68 2.300E+05 3.000E+03 1.48 1409900300015 6.86 9.260E+04 2.000E+03 1.29 1409900300016 7.86 4.180E+04 2.000E+03 1.15 1409900300017 8.97 2.100E+04 1.000E+03 1.03 1409900300018 10.04 7.500E+03 5.000E+02 0.93 1409900300019 11.04 4.000E+03 2.000E+02 0.85 1409900300020 12.16 1.800E+03 2.000E+02 0.78 1409900300021 13.17 9.400E+02 2.000E+02 0.72 1409900300022 14.29 2.700E+02 1.000E+02 0.67 1409900300023 15.00 1.400E+02 3.000E+01 0.64 1409900300024 16.05 1.500E+02 3.000E+01 0.59 1409900300025 17.22 1.000E+01 3.000E+01 0.54 1409900300026 ENDDATA 16 0 1409900300027 ENDSUBENT 26 0 1409900399999 ENDENTRY 3 0 1409999999999