ENTRY 23506 20190526 22802350600000001 SUBENT 23506001 20190526 22802350600100001 BIB 12 26 2350600100002 TITLE Measurements of total cross sections for very slow 2350600100003 neutrons with velocities from 100 m/sec to 5 m/sec 2350600100004 AUTHOR (A.Steyerl) 2350600100005 REFERENCE (J,PL/B,29,33,1969) 2350600100006 INSTITUTE (2GERMUN) 2350600100007 FACILITY (REAC,2GERMUN) FRM swiming pool reactor 2350600100008 INC-SOURCE (REAC) Thermal flux 10**13 /cm2/sec. 2350600100009 INC-SPECT Very cold neutrons were selected from graphite 2350600100010 secondary moderator near the core through a vertical 2350600100011 neutron guide tube with a glass chopper. 2350600100012 Distance moderator-chopper - 2 m, 2350600100013 chopper-sample - 10.5 m. 2350600100014 SAMPLE 18 micron thickness, 99.99% Au foil. 2350600100015 1.5 mm thickness, 99.999% Al , 2350600100016 at 300 K . 2350600100017 DETECTOR (BF3) 2350600100018 METHOD (TOF,TRN) Relative time-of-flight resolution ~20%. 2350600100019 CORRECTION Neutron velocity was corrected for its refractive 2350600100020 reduction within the sample - 15 % 2350600100021 for Au at 8.96 m/s neutron velocity, 2350600100022 for Al at 6.12 m/sec . 2350600100023 Folding the intensity distribution with resolution 2350600100024 function. 2350600100025 Reflection from the sample surface. 2350600100026 Forward scattering. 2350600100027 HISTORY (20190526C) M.M. 2350600100028 ENDBIB 26 0 2350600100029 NOCOMMON 0 0 2350600100030 ENDSUBENT 29 0 2350600199999 SUBENT 23506002 20190526 22802350600200001 BIB 4 29 2350600200002 REACTION (13-AL-27(N,TOT),,SIG) 2350600200003 for 10 m/sec velocity, 395 Angstrom wave 2350600200004 ADD-RES Velocity, m/sec CS,b Error,b 2350600200005 4.983E+00 1.247E+02 2.533E+01 2350600200006 6.041E+00 1.045E+02 1.295E+01 2350600200007 7.044E+00 8.430E+01 8.626E+00 2350600200008 9.406E+00 6.794E+01 5.500E+00 2350600200009 1.243E+01 4.920E+01 3.239E+00 2350600200010 1.628E+01 3.851E+01 1.919E+00 2350600200011 2.152E+01 2.957E+01 3.342E+00 2350600200012 3.042E+01 2.039E+01 3.205E+00 2350600200013 4.646E+01 1.351E+01 2.906E+00 2350600200014 6.323E+01 1.017E+01 3.584E+00 2350600200015 Digitized from Fig.2 of J.Phys.Let.,v.29B,p.33,1969 2350600200016 with quantization errors 0.21 % for both scales, 2350600200017 digitization error 0.25 % for scale X (velocity), 2350600200018 0.33 % for scale Y ( cross section). 2350600200019 Scale correspondence (digitized from scale below plot):2350600200020 Velocity, m/sec En, microeV 2350600200021 0.1 0.098650 2350600200022 0.5 0.050613 2350600200023 2. 2.0223 2350600200024 10. 9.9839 2350600200025 50. 50.247 2350600200026 200. 196.94 2350600200027 1000. 991.17 2350600200028 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 2350600200029 article. 2350600200030 STATUS (TABLE) Text, page 34 of J.Phys.Let.,v.29B,p.33,1969 2350600200031 ENDBIB 29 0 2350600200032 NOCOMMON 0 0 2350600200033 DATA 3 1 2350600200034 EN DATA DATA-ERR 2350600200035 MICRO-EV B B 2350600200036 0.526 63. 4. 2350600200037 ENDDATA 3 0 2350600200038 ENDSUBENT 37 0 2350600299999 SUBENT 23506003 20190526 22802350600300001 BIB 4 29 2350600300002 REACTION (79-AU-197(N,TOT),,SIG) 2350600300003 for 10 m/sec velocity, 395 Angstrom wave 2350600300004 ADD-RES Velocity, m/sec CS,b Error,b 2350600300005 7.515E+00 2.885E+04 2.943E+03 2350600300006 8.682E+00 2.492E+04 1.240E+03 2350600300007 1.193E+01 1.805E+04 8.985E+02 2350600300008 1.592E+01 1.386E+04 8.322E+02 2350600300009 2.105E+01 1.044E+04 7.350E+02 2350600300010 3.034E+01 7.206E+03 5.824E+02 2350600300011 3.642E+01 5.985E+03 4.212E+02 2350600300012 4.633E+01 4.689E+03 3.789E+02 2350600300013 6.243E+01 3.498E+03 5.096E+02 2350600300014 9.443E+01 2.343E+03 3.939E+02 2350600300015 Digitized from Fig.2 of J.Phys.Let.,v.29B,p.33,1969 2350600300016 with quantization errors 0.21 % for both scales, 2350600300017 digitization error 0.25 % for scale X (velocity), 2350600300018 0.33 % for scale Y ( cross section). 2350600300019 Scale correspondence (digitized from scale below plot):2350600300020 Velocity, m/sec En, microeV 2350600300021 0.1 0.098650 2350600300022 0.5 0.050613 2350600300023 2. 2.0223 2350600300024 10. 9.9839 2350600300025 50. 50.247 2350600300026 200. 196.94 2350600300027 1000. 991.17 2350600300028 ERR-ANALYS (DATA-ERR) Type of uncertainty is not explained in the 2350600300029 article. 2350600300030 STATUS (TABLE) Text, page 34 of J.Phys.Let.,v.29B,p.33,1969 2350600300031 ENDBIB 29 0 2350600300032 NOCOMMON 0 0 2350600300033 DATA 3 1 2350600300034 EN DATA DATA-ERR 2350600300035 MICRO-EV B B 2350600300036 0.526 21600. 1000. 2350600300037 ENDDATA 3 0 2350600300038 ENDSUBENT 37 0 2350600399999 ENDENTRY 3 0 2350699999999