ENTRY 20076 20200801 22902007600000001 SUBENT 20076001 20200801 22902007600100001 BIB 13 25 2007600100002 TITLE Fast fission cross-section of 92-U-235 and 92-U-238 2007600100003 AUTHOR (N.Raisic) 2007600100004 REFERENCE (J,NUC,13,(2),67,1955) 2007600100005 INSTITUTE (2NORKJL) 2007600100006 FACILITY (REAC,2NORKJL) JEEP thermal reactor. 2007600100007 INC-SOURCE (REAC) Fission neutrons from an uranium slug in the 2007600100008 thermal column of the JEEP reactor. 2007600100009 Thermal neutrons stopped completely by cadmium shield.2007600100010 INC-SPECT The spectrum of the neutrons in the beam 2007600100011 did not correspond accurately to a fission neutron 2007600100012 spectrum because of the influence of epithermal 2007600100013 neutrons generated by slowing down in the collimating 2007600100014 system. This deviation was corrected by measuring the 2007600100015 counting ratio between a Li- and a B-F(3) counter. 2007600100016 METHOD Counting rate ratio between a 2007600100017 DETECTOR (PROPC) Fission proportional counter and a 2007600100018 (BF3) boron trifluoride counter for B-10(n,alpha). 2007600100019 CORRECTION .For deviation from a true fission neutron spectrum. 2007600100020 ERR-ANALYS (DATA-ERR) Mainly due to uncertainty in isotopic ratio.2007600100021 STATUS (TABLE) Text on p.68 of Nucleonics,13,iss.2(1955)67 2007600100022 HISTORY (19710803C) Comments added. 2007600100023 (19710803T) From NEUDADA. 2007600100024 (19810213A) G.C., Converted to reaction formalism. 2007600100025 (20200801U) SD:Updated to new date formats, lower case.2007600100026 Small corrections in all Subents. 2007600100027 ENDBIB 25 0 2007600100028 COMMON 1 3 2007600100029 EN-DUMMY 2007600100030 MEV 2007600100031 1.0 2007600100032 ENDCOMMON 3 0 2007600100033 ENDSUBENT 32 0 2007600199999 SUBENT 20076002 20200801 22902007600200001 BIB 3 6 2007600200002 REACTION ((92-U-235(N,F),,SIG,,FIS)/ 2007600200003 (5-B-10(N,A)3-LI-7,,SIG,,FIS)) 2007600200004 SAMPLE Deposits of 1/25 isotopic ratio in detector. 2007600200005 HISTORY (19810213A) G.C., Converted to reaction formalism. 2007600200006 (20200801U) SD: STATUS moved to Subent 001. 2007600200007 ERR-T -> DATA-ERR. 2007600200008 ENDBIB 6 0 2007600200009 NOCOMMON 0 0 2007600200010 DATA 2 1 2007600200011 DATA DATA-ERR 2007600200012 NO-DIM NO-DIM 2007600200013 17.5 8. 2007600200014 ENDDATA 3 0 2007600200015 ENDSUBENT 14 0 2007600299999 SUBENT 20076003 20200801 22902007600300001 BIB 5 7 2007600300002 REACTION (92-U-235(N,F),,SIG,,FIS) 2007600300003 SAMPLE .Deposits of 1/25 isotopic ratio in detector. 2007600300004 MONITOR (5-B-10(N,A)3-LI-7,,SIG,,FIS) 2007600300005 STATUS (DEP,20076002) cr.sect.ratio 2007600300006 HISTORY (19810213A) G.C., Converted to reaction formalism. 2007600300007 (20200801U) SD: STATUS moved to Subent 001. 2007600300008 ERR-T -> DATA-ERR. 2007600300009 ENDBIB 7 0 2007600300010 NOCOMMON 0 0 2007600300011 DATA 3 1 2007600300012 DATA DATA-ERR MONIT 2007600300013 B B B 2007600300014 1.6 0.8 0.091 2007600300015 ENDDATA 3 0 2007600300016 ENDSUBENT 15 0 2007600399999 SUBENT 20076004 20200801 22902007600400001 BIB 3 6 2007600400002 REACTION ((92-U-238(N,F),,SIG,,FIS)/ 2007600400003 (5-B-10(N,A)3-LI-7,,SIG,,FIS)) 2007600400004 SAMPLE .Natural 92-U in detector. 2007600400005 HISTORY (19810213A) G.C., Converted to reaction formalism. 2007600400006 (20200801U) SD: STATUS moved to Subent 001. 2007600400007 ERR-T -> DATA-ERR. 2007600400008 ENDBIB 6 0 2007600400009 NOCOMMON 0 0 2007600400010 DATA 2 1 2007600400011 DATA DATA-ERR 2007600400012 NO-DIM NO-DIM 2007600400013 2.95 0.3 2007600400014 ENDDATA 3 0 2007600400015 ENDSUBENT 14 0 2007600499999 SUBENT 20076005 20200801 22902007600500001 BIB 5 7 2007600500002 REACTION (92-U-238(N,F),,SIG,,FIS) 2007600500003 SAMPLE .Natural 92-U in detector. 2007600500004 MONITOR (5-B-10(N,A)3-LI-7,,SIG,,FIS) 2007600500005 STATUS (DEP,20076004) 2007600500006 HISTORY (19810213A) G.C., Converted to reaction formalism. 2007600500007 (20200801U) SD: STATUS moved to Subent 001. 2007600500008 ERR-T -> DATA-ERR. 2007600500009 ENDBIB 7 0 2007600500010 NOCOMMON 0 0 2007600500011 DATA 3 1 2007600500012 DATA DATA-ERR MONIT 2007600500013 B B B 2007600500014 0.27 0.03 0.091 2007600500015 ENDDATA 3 0 2007600500016 ENDSUBENT 15 0 2007600599999 ENDENTRY 5 0 2007699999999