ENTRY 20368 20070409 21842036800000001 SUBENT 20368001 20070409 21842036800100001 BIB 16 38 2036800100002 INSTITUTE (2UK BIR) 2036800100003 REFERENCE (C,68WASH,1,169,196803) 2036800100004 AUTHOR (J.R.P.Eaton, J.Walker) 2036800100005 TITLE -The non-elastic cross-section of beryllium for 2036800100006 neutrons from 2.3 to 5.2 MeV.- 2036800100007 FACILITY (VDG) 5 MV Van de Graaff at AERE,Harwell. 2036800100008 INC-SOURCE (P-T) T(P,N)He3 reaction between 2.3 and 3.7 MeV. 2036800100009 (D-D ) D(d,N)He3 reaction between 4.2 and 5.2 MeV. 2036800100010 SAMPLE .Spherical shell, outer diam.14.99 cm, 2036800100011 inner diam. 13.46 cm. For e(N) = 3.2, 3.7, 4.2 2036800100012 and 5.2 MeV in addition a measurement was done 2036800100013 with a shell with outer diam. 14.99 cm and 2036800100014 inner diam. 11.94 cm. 2036800100015 METHOD .Shell transmission. 2036800100016 DETECTOR (FISCH) U-238 fission chamber as neutron detector. 2036800100017 ANALYSIS .Multigroup pi-analysis assuming all scatterings 2036800100018 isotropic except the first (see Bethe et al., 2036800100019 J.Nucl.En.,3(1956)207, 3(1956)273, 4(1957)3 and 2036800100020 4(1957)147). 2036800100021 MONITOR .Absolute. 2036800100022 COMMENT .The low energy part (t(P,N) measurements) have been 2036800100023 repeated (see j.Phys.D.,7(1974)1122, entry 20353). 2036800100024 STATUS .Taken from table 4 of 1968 Washington conf., 2036800100025 Vol.1,P.169. 2036800100026 CORRECTION .Spectrum of transmitted neutrons calculated by 2036800100027 MONTE CARLO program together with the response 2036800100028 of the fission counter allowed for correction of 2036800100029 neutrons scattered elastically rather than 2036800100030 inelastically below the detector threshold. 2036800100031 .Finite size of detector(0.1 percent). 2036800100032 .Finite distance source detector. 2036800100033 .Non isotropic emission from source. 2036800100034 .The last two corrections amount 0.1 to 1. Percent. 2036800100035 .(N,2N) secondary neutrons neglected. 2036800100036 ERR-ANALYS .No further details given. 2036800100037 HISTORY (19740902C) 2036800100038 (19740929E) 2036800100039 (20070314A) Date and some subents are corrected 2036800100040 ENDBIB 38 0 2036800100041 NOCOMMON 0 0 2036800100042 ENDSUBENT 41 0 2036800199999 SUBENT 20368002 20070409 21842036800200001 BIB 5 9 2036800200002 REACTION (4-BE-9(N,2N+A)2-HE-4,,SIG) 2036800200003 ANALYSIS .Values calculated using non-elastic cross-sections of 2036800200004 the same reference and be9(N,alpha) cross-sections 2036800200005 taken or interpolated from G.Doherty,rept.AEEW-M-513 2036800200006 (1965). 2036800200007 STATUS (COREL,20353002) 2036800200008 HISTORY (20070314A) Reaction code corrected 2036800200009 ERR-ANALYS .The experimental error has been increased by 10 mb to 2036800200010 allow for uncertainties in the (N,alpha) cross-section2036800200011 ENDBIB 9 0 2036800200012 NOCOMMON 0 0 2036800200013 DATA 4 7 2036800200014 EN EN-RSL DATA DATA-ERR 2036800200015 MEV MEV B B 2036800200016 2.3000E+00 5.0000E-02 2.5000E-02 8.0000E-02 2036800200017 2.7000E+00 5.0000E-02 4.9000E-01 1.1000E-01 2036800200018 3.2000E+00 4.5000E-02 5.4000E-01 7.0000E-02 2036800200019 3.7000E+00 4.5000E-02 5.4000E-01 6.0000E-02 2036800200020 4.2000E+00 8.5000E-02 6.4000E-01 7.0000E-02 2036800200021 4.7000E+00 7.5000E-02 6.5000E-01 8.0000E-02 2036800200022 5.2000E+00 6.5000E-02 6.7000E-01 1.1000E-01 2036800200023 ENDDATA 9 0 2036800200024 ENDSUBENT 23 0 2036800299999 SUBENT 20368003 20070409 21842036800300001 BIB 3 4 2036800300002 REACTION (4-BE-9(N,NON),,SIG) 2036800300003 STATUS (COREL,20353003) 2036800300004 HISTORY (19740902C) 2036800300005 (19740929E) 2036800300006 ENDBIB 4 0 2036800300007 NOCOMMON 0 0 2036800300008 DATA 4 7 2036800300009 EN EN-RSL DATA DATA-ERR 2036800300010 MEV MEV B B 2036800300011 2.3000E+00 5.0000E-02 9.0000E-02 7.0000E-02 2036800300012 2.7000E+00 5.0000E-02 5.9000E-01 1.0000E-01 2036800300013 3.2000E+00 4.5000E-02 6.4000E-01 6.0000E-02 2036800300014 3.7000E+00 4.5000E-02 6.4000E-01 5.0000E-02 2036800300015 4.2000E+00 8.5000E-02 7.2000E-01 6.0000E-02 2036800300016 4.7000E+00 7.5000E-02 7.2000E-01 7.0000E-02 2036800300017 5.2000E+00 6.5000E-02 7.3000E-01 1.0000E-01 2036800300018 ENDDATA 9 0 2036800300019 ENDSUBENT 18 0 2036800399999 ENDENTRY 3 0 2036899999999