ENTRY 30902 20090912 31413090200000001 SUBENT 30902001 20090912 31413090200100001 BIB 14 44 3090200100002 INSTITUTE (3CPRTSI) 3090200100003 REFERENCE (R,INDC(CPR)-006/L,198508) Complete information 3090200100004 (C,85SANTA,2,1355,1985) Shorter version of INDC(CPR)-6 3090200100005 (R,INDC(CPR)-030/L,1,1993) Averaged data ( subent 003) 3090200100006 (C,91BEIJIN,,13,199109) Graphs only 3090200100007 AUTHOR (Qi Huei-Quan,Liu Yun-Chang,Chen Zhen-Peng,Wu Xue-Chao,3090200100008 Wang Wan-Hong,Zhang Jing) 3090200100009 TITLE The measurement of neutron scattering cross sections at3090200100010 small angles 3090200100011 FACILITY (CCW,3CPRCNI) 3090200100012 INC-SOURCE (D-T) 3090200100013 SAMPLE Solid cylinders of analytically pure lead,2.8 cm 3090200100014 diameter .2cm and 3cm high 3090200100015 METHOD (TOF,ASSOP,PSD) The TOF and pulse shape discrimination 3090200100016 were used for identifying scattered neutrons3090200100017 from the random background. The TOF was 3090200100018 based on the associated particle method. 3090200100019 By the single channel analyzer 14.7 +-2 MeV3090200100020 neutrons were extracted, in this way the 3090200100021 neutrons of different energies and gamma- 3090200100022 ray produced near the target and impinging 3090200100023 on the liquid scintillator were excluded. 3090200100024 The resolving time of the system is 404 ns 3090200100025 average corresponding to position 3090200100026 resolution (FWHM)3.13 cm or the standard 3090200100027 deviation +-1.33 cm. 3090200100028 DETECTOR (SCIN) The detector consists of a liquid scintillator 3090200100029 encapsulated in a quartz cylinder,55 cm in length and 3090200100030 3.8 cm in diameter. Both endfaces in optical contact 3090200100031 with GDB-49 photomultipliers. 3090200100032 MONITOR Absolute measurement. Smaller liquid scintillator was 3090200100033 used to monitor the associated neutron yields. 3090200100034 CORRECTION The data were corrected for multiple scattering and 3090200100035 attenuation in the scattering sample,finite geometry of3090200100036 sample and detector by Monte Carlo method. 3090200100037 ERR-ANALYS (ERR-S) The errors are due to statistical 3090200100038 uncertainties only. 3090200100039 STATUS (TABLE) Data were taken from INDC(CPR)-006/l,8508 3090200100040 HISTORY (19880718C)VOF 3090200100041 (19890210A) VOF.-Reaction code was corrected- 3090200100042 (19931125A) HW.-References added, information under 3090200100043 'FLAG' corrected, previous subent 32605003 added.- 3090200100044 (19970411A) HW.- FLAG moved to subent 002.- 3090200100045 (20090912A) SD:Updated to new date formats,lower case. 3090200100046 ENDBIB 44 0 3090200100047 COMMON 1 3 3090200100048 EN 3090200100049 MEV 3090200100050 14.7 3090200100051 ENDCOMMON 3 0 3090200100052 ENDSUBENT 51 0 3090200199999 SUBENT 30902002 20090912 31413090200200001 BIB 3 5 3090200200002 REACTION (82-PB-0(N,EL)82-PB-0,,DA) 3090200200003 FLAG (1.) Sample height = 2 cm 3090200200004 (2.) Sample height = 3 cm 3090200200005 HISTORY (19970411A) HW.- Keyword 'FLAG' added.- 3090200200006 (20090920A) OS. SAMPLE information corrected 3090200200007 ENDBIB 5 0 3090200200008 NOCOMMON 0 0 3090200200009 DATA 4 10 3090200200010 ANG DATA ERR-S FLAG 3090200200011 ADEG B/SR B/SR NO-DIM 3090200200012 3. 13.8 0.7 1. 3090200200013 3. 12.6 0.8 2. 3090200200014 4.5 12.5 0.7 1. 3090200200015 4.5 11.7 0.8 2. 3090200200016 6. 11.6 0.6 1. 3090200200017 6. 10.8 0.8 2. 3090200200018 7.5 11.4 0.6 1. 3090200200019 7.5 10.1 0.7 2. 3090200200020 9. 9.1 0.5 1. 3090200200021 9. 8.8 0.6 2. 3090200200022 ENDDATA 12 0 3090200200023 ENDSUBENT 22 0 3090200299999 SUBENT 30902003 20090912 31413090200300001 BIB 5 6 3090200300002 REACTION (82-PB-0(N,EL)82-PB-0,,DA) 3090200300003 SAMPLE Natural metallic lead 3090200300004 COMMENT This subent contains the averaged data of subent 002. 3090200300005 STATUS (DEP,30902002) 3090200300006 HISTORY (19931125A) HW.-New subent, previously subent 32605003.3090200300007 (20090920A) OS. STATUS added 3090200300008 ENDBIB 6 0 3090200300009 NOCOMMON 0 0 3090200300010 DATA 3 5 3090200300011 ANG DATA ERR-S 3090200300012 ADEG B/SR B/SR 3090200300013 3.0 13.2 0.7 3090200300014 4.5 12.1 0.7 3090200300015 6.0 11.2 0.6 3090200300016 7.5 10.8 0.6 3090200300017 9.0 9.0 0.5 3090200300018 ENDDATA 7 0 3090200300019 ENDSUBENT 18 0 3090200399999 ENDENTRY 3 0 3090299999999