ENTRY 30019 20160210 31733001900000001 SUBENT 30019001 20160210 31733001900100001 BIB 16 30 3001900100002 TITLE The energy dependence in the range 0.7-4 meV of the 3001900100003 neutron fission cross-section of Pu-239 3001900100004 AUTHOR (N.Grama, L.Marinescu, I.Mihai, M.Petrascu, 3001900100005 A.Sandulescu, G.Voiculescu) 3001900100006 INSTITUTE (3RUMBUC) 3001900100007 REFERENCE (J,RRP,12,43,1967) 3001900100008 FACILITY (REAC) No details given 3001900100009 (CHOPS) Thermal chopper (2 mm slits and rotating at 3001900100010 600 rpm giving a pulse length of 580 usec. 3001900100011 Time resolution was 5.5% at 4 meV and 2% at 0.7 meV. 3001900100012 INC-SOURCE (REAC) A 10 cm quartz monocrystal was placed in the 3001900100013 neutron beam to reduce background. 3001900100014 SAMPLE 0.5 mg/cm2 Pu on 8 cm diam. Ni backing 3001900100015 DETECTOR (SCIN) Gas scintillation fission fragment counter 3001900100016 filled with 80% Ar and 20% N. Alpha particles 3001900100017 rejected by fast discriminator. 3001900100018 (BF3) Neutron flux monitor 3001900100019 PART-DET (FF) 3001900100020 METHOD (TOF) Flight path of 5 m (chopper - chamber) 3001900100021 MONITOR (94-PU-239(N,F),,SIG) 3001900100022 MONIT-REF (21203001,S.J.Cocking,J,JNE,6,285,1958) 3001900100023 CORRECTION Background recorded with 0.5 mm Cd foil in beam 3001900100024 ERR-ANALYS (ERR-S) Percentage error due to statistics 3001900100025 STATUS (TABLE) Private communication Bally, June 1970 3001900100026 HISTORY (19701019C) 3001900100027 (19711027A) ISO-QUANT corrected HDL3001900100028 (20150723S) On. Restored from NDS VMS Archive (1998) 3001900100029 (20150723A) On. REACTION moved to 002, DATA-ERR->ERR-S 3001900100030 STANDARD->MONITOR, GEOMETRY deleted. 3001900100031 (20151028U) VS. Minor corrections. 3001900100032 ENDBIB 30 0 3001900100033 NOCOMMON 0 0 3001900100034 ENDSUBENT 33 0 3001900199999 SUBENT 30019002 20150723 31723001900200001 BIB 2 3 3001900200002 REACTION (94-PU-239(N,F),,SIG,,RTE) 3001900200003 HISTORY (20150723A) On. REACTION moved from 001, 3001900200004 DATA-ERR -> ERR-S 3001900200005 ENDBIB 3 0 3001900200006 COMMON 1 3 3001900200007 EN-NRM 3001900200008 MILLI-EV 3001900200009 1. 3001900200010 ENDCOMMON 3 0 3001900200011 DATA 3 38 3001900200012 EN DATA ERR-S 3001900200013 MILLI-EV B*RT-EV PER-CENT 3001900200014 0.76 176. 28.0 3001900200015 0.78 111. 3001900200016 0.80 92. 3001900200017 0.83 109. 3001900200018 0.86 128. 22.0 3001900200019 0.89 131. 3001900200020 0.92 160. 3001900200021 0.94 94. 21.0 3001900200022 0.97 120. 3001900200023 1.01 108. 3001900200024 1.05 98. 17.0 3001900200025 1.09 128. 3001900200026 1.11 123. 3001900200027 1.16 140. 9.0 3001900200028 1.21 130. 3001900200029 1.26 123. 3001900200030 1.32 123. 8.0 3001900200031 1.36 126. 3001900200032 1.42 123. 3001900200033 1.49 109. 6.9 3001900200034 1.56 130. 3001900200035 1.64 120. 3001900200036 1.69 115. 5.3 3001900200037 1.77 103. 3001900200038 1.86 116. 3001900200039 1.96 136. 4.4 3001900200040 2.07 136. 3001900200041 2.16 138. 3001900200042 2.28 123. 3.1 3001900200043 2.41 147. 3001900200044 2.55 141. 3001900200045 2.71 145. 2.2 3001900200046 2.87 140. 3001900200047 3.05 136. 3001900200048 3.25 132. 2.1 3001900200049 3.47 142. 3001900200050 3.71 129. 3001900200051 3.97 126. 1.4 3001900200052 ENDDATA 40 0 3001900200053 ENDSUBENT 52 0 3001900299999 ENDENTRY 2 0 3001999999999