ENTRY 30990 20090919 31413099000000001 SUBENT 30990001 20090919 31413099000100001 BIB 13 46 3099000100002 TITLE Small angle scattering cross sections of 14.8 MeV 3099000100003 neutrons from iron, nickel and chromium 3099000100004 AUTHOR (Qi Huiquan,Chen Hongbin,Chen Yingtang,Chen Qiankun, 3099000100005 Chen Zhenpeng,Chen Zemin) 3099000100006 INSTITUTE (3CPRTSI) 3099000100007 REFERENCE (J,NSE,111,309,1992) 3099000100008 (C,91JUELIC,,320,199105) Same as Nucl.Sci.Eng. 111,309 3099000100009 (C,91BEIJIN,,13,199109) Graphs only 3099000100010 (R,INDC(CPR)-030/L,1,199304) Same data as 3099000100011 Nucl.Sci.Eng. 111,309 3099000100012 FACILITY (CCW,3CPRTSI) 3099000100013 INC-SOURCE (D-T) 3099000100014 DETECTOR (PS,SCIN) A cylindrical liquid scintillator tube of 3099000100015 100 cm in length and 5.3 cm in inner diameter with two 3099000100016 photomultipliers at both ends of the tube. The position3099000100017 information of the incident neutrons was obtained from 3099000100018 the time difference of both photomultiplier signals. 3099000100019 MONITOR The neutron beam was monitored by counting associated 3099000100020 alpha's produced in the T(d,n)He-4 reaction 3099000100021 METHOD (TOF,PSD,ASSOP) The associated (alpha-)particle TOF 3099000100022 technique and pulse shape (n-gamma) discrimination 3099000100023 were used to reduce the background. 3099000100024 EN-RSL: The energy resolution of the measuring 3099000100025 system is 1 MeV so the data include contributions 3099000100026 from neutrons scattered inelastically from low-lying 3099000100027 excited levels. 3099000100028 CORRECTION The results were corrected for the neutron flux 3099000100029 attenuation, multiple neutron scattering and finite 3099000100030 geometry by the monte-carlo method. 3099000100031 ERR-ANALYS (ERR-S) Statistical errors 3099000100032 (ERR-1) The uncertainty in the cross section caused 3099000100033 by the asymmetry of the collimated neutron-beam 3099000100034 profile was estimated to be about 3%. 3099000100035 (ERR-2,,3.) The sum of errors caused by Monte Carlo 3099000100036 corrections, correction for dead time of alpha counting3099000100037 and uncertainty of the number of nuclei in the samples 3099000100038 was estimated to be less than 3%. 3099000100039 (ANG-ERR) The angular uncertainty is +- 0.8 deg. 3099000100040 (ERR-T,7.,10.) Total error varies from 7 till 10% 3099000100041 STATUS (TABLE) Data are taken from Table 2 of Nucl. Sci. 3099000100042 and Engin., Vol. 111, p. 309(1992). 3099000100043 HISTORY (19920722C) HW 3099000100044 (19930920U) HW.- Reference added.- 3099000100045 (20090912A) SD:Updated to new date formats,lower case. 3099000100046 Cosmetic corrections, COMMON section and codes for 3099000100047 ERR-ANALYS were added. 3099000100048 ENDBIB 46 0 3099000100049 COMMON 4 3 3099000100050 EN EN-RSL ANG-ERR ERR-1 3099000100051 MEV MEV ADEG PER-CENT 3099000100052 14.8 1. 0.8 3.0 3099000100053 ENDCOMMON 3 0 3099000100054 ENDSUBENT 53 0 3099000199999 SUBENT 30990002 20090919 31413099000200001 BIB 2 3 3099000200002 REACTION (26-FE-0(N,EL)26-FE-0,,DA) 3099000200003 SAMPLE Natural metal element of 99.99% purity, 2.0 thick, 3099000200004 7.8 g/cm3 density 3099000200005 ENDBIB 3 0 3099000200006 NOCOMMON 0 0 3099000200007 DATA 3 8 3099000200008 ANG DATA ERR-S 3099000200009 ADEG B/SR B/SR 3099000200010 2.5 3.31 0.13 3099000200011 4.0 3.19 0.10 3099000200012 6.0 2.68 0.08 3099000200013 8.0 2.36 0.07 3099000200014 10.0 2.38 0.07 3099000200015 12.0 2.11 0.06 3099000200016 14.0 1.62 0.11 3099000200017 16.0 1.30 0.10 3099000200018 ENDDATA 10 0 3099000200019 ENDSUBENT 18 0 3099000299999 SUBENT 30990003 20090919 31413099000300001 BIB 2 3 3099000300002 REACTION (28-NI-0(N,EL)28-NI-0,,DA) 3099000300003 SAMPLE Natural metal element of 99.5% purity, 1.6 thick, 3099000300004 8.9 g/cm3 density 3099000300005 ENDBIB 3 0 3099000300006 NOCOMMON 0 0 3099000300007 DATA 3 8 3099000300008 ANG DATA ERR-S 3099000300009 ADEG B/SR B/SR 3099000300010 2.5 3.43 0.14 3099000300011 4.0 3.29 0.13 3099000300012 6.0 3.02 0.11 3099000300013 8.0 2.81 0.10 3099000300014 10.0 2.76 0.10 3099000300015 12.0 2.18 0.08 3099000300016 14.0 2.25 0.16 3099000300017 16.0 1.32 0.11 3099000300018 ENDDATA 10 0 3099000300019 ENDSUBENT 18 0 3099000399999 SUBENT 30990004 20090919 31413099000400001 BIB 2 3 3099000400002 REACTION (24-CR-0(N,EL)24-CR-0,,DA) 3099000400003 SAMPLE Natural metal element of 99.5% purity, 2.1 thick, 3099000400004 4.8 g/cm3 density 3099000400005 ENDBIB 3 0 3099000400006 NOCOMMON 0 0 3099000400007 DATA 3 8 3099000400008 ANG DATA ERR-S 3099000400009 ADEG B/SR B/SR 3099000400010 2.5 2.88 0.14 3099000400011 4.0 2.77 0.11 3099000400012 6.0 2.66 0.09 3099000400013 8.0 2.38 0.08 3099000400014 10.0 2.36 0.08 3099000400015 12.0 2.10 0.07 3099000400016 14.0 1.89 0.13 3099000400017 16.0 1.44 0.12 3099000400018 ENDDATA 10 0 3099000400019 ENDSUBENT 18 0 3099000499999 ENDENTRY 4 0 3099099999999