ENTRY 30187 20080208 31263018700000001 SUBENT 30187001 20080208 31263018700100001 BIB 13 31 3018700100002 INSTITUTE (3RUMBUC) 3018700100003 REFERENCE (P,INDC(RUM)-3,19,1972) Short progress report 3018700100004 (P,INDC(SEC)-28,228,197209) Identical to INDC(RUM)-3 3018700100005 (J,SCF,25,387,1973) Full paper, in Rumanian 3018700100006 AUTHOR (D.Plostinaru,E.A.Ivanov,A.Iordachescu,S.Vajda, 3018700100007 GH.Pascovici) 3018700100008 TITLE Cross-section of Na-23(n,gamma)Na-24m reaction for 3018700100009 fast neutrons 3018700100010 FACILITY (CYCLO) Cyclotron 3018700100011 INC-SOURCE (P-LI7) Pulsed proton beam (width 10 ms, repetition 3018700100012 time 1 s) on Li-7 target 3018700100013 METHOD Pulsed neutrons on a NaI(Tl) detector used as 3018700100014 sample and shielded against the 477 keV gamma line from3018700100015 the decay of Be-7 by a copper absorber. 3018700100016 (ACTIV) Activation method 3018700100017 DETECTOR (NAICR) NaI(Tl) crystal spectrometer (diameter=40 mm, 3018700100018 length=50 mm). The photopeak efficiency was evaluated 3018700100019 to be 0.32+-0.06 For the 472 keV gammas. 3018700100020 MONITOR The neutron flux was determined by measuring the 477keV3018700100021 gamma activity induced in Be-7 by Li-7(p,n)Be-7 taking 3018700100022 into account the angular distribution of the neutrons. 3018700100023 No numerical value was given 3018700100024 PART-DET (DG) Decay-gammas of 472 keV 3018700100025 HISTORY (19720817C) CA. 3018700100026 (20080208A) BIB section updated 3018700100027 proof-copy was sent to author (1973/09) 3018700100028 CORRECTION Correction was performed for background arising from 3018700100029 scattered neutrons. The influence of the Cu absorber 3018700100030 was taken into account. 3018700100031 ERR-ANALYS (DATA-ERR) most of the error is due to uncertainty in 3018700100032 the correction and in the detector S efficiency 3018700100033 ENDBIB 31 0 3018700100034 NOCOMMON 0 0 3018700100035 ENDSUBENT 34 0 3018700199999 SUBENT 30187002 20080208 31263018700200001 BIB 3 4 3018700200002 REACTION (11-NA-23(N,G)11-NA-24,PAR,SIG) 3018700200003 EN-SEC (E-EXC,11-NA-24) in the article isotope 11-NA-24 is 3018700200004 given as 11-NA-24-M 3018700200005 HISTORY (20080215S) Dataset was restored. 3018700200006 ENDBIB 4 0 3018700200007 COMMON 1 3 3018700200008 E-EXC 3018700200009 MEV 3018700200010 0.472 3018700200011 ENDCOMMON 3 0 3018700200012 DATA 3 3 3018700200013 EN DATA DATA-ERR 3018700200014 MEV MB MB 3018700200015 0.92 0.10 0.04 3018700200016 2.28 0.10 0.04 3018700200017 3.95 0.12 0.04 3018700200018 ENDDATA 5 0 3018700200019 ENDSUBENT 18 0 3018700299999 ENDENTRY 2 0 3018799999999