ENTRY M0210 20160224 M082M021000000001 SUBENT M0210001 20160224 M082M021000100001 BIB 12 38 M021000100002 TITLE Neutron experiments with a sensitive Szilard-Chalmers M021000100003 detector. M021000100004 AUTHOR (R.D.Edge) M021000100005 INSTITUTE (3AULCBR) M021000100006 REFERENCE (J,AUJ,9,429,1956) M021000100007 INC-SOURCE (MPH=(9-F-19(P,A)8-O-16)) Ep = 900 keV. M021000100008 METHOD (ACTIV) M021000100009 DETECTOR (MTANK) M021000100010 PART-DET (N) M021000100011 COMMENT The Szilard-Chalmers reaction has been developed as a M021000100012 sensitive detector for the comparison of neutrons M021000100013 from sources of different primary energy and angular M021000100014 distribution. Using sodium permanganate solution, a M021000100015 detection efficiency of approximately 7% for all M021000100016 neutrons in the energy range 0 - 5 MeV was obtained M021000100017 and high accuracy achieved. M021000100018 The method of detection was employed to make the M021000100019 following measurements: (I) the neutron yield from M021000100020 the spontaneous fission of natural uranium was found M021000100021 to be M021000100022 1.56(0.12)*10**(-2)*n*sec**(-1)**(-1). M021000100023 (ii) the cross section for the reaction Li-6(gamma,n) M021000100024 at 6.2 MeV was found to be (3.+-2.)*10**-28 cm**2. M021000100025 (iii) the cross section for the reaction Be-9(n,2n) M021000100026 induced by Ra-Be and Ra-Be sources of neutrons was M021000100027 found to be 0.37(0.06)*10**-24 cm**2. M021000100028 (iv) a limit was placed onthe cross-over transition M021000100029 from the 2.5 MeV state to theground state in Co-60. M021000100030 The transition probability was found to be < M021000100031 1.10**-6 of that for the cascade consisting of the M021000100032 two gamma rays. M021000100033 ERR-ANALYS (ERR-S) Statistical errors are presented. M021000100034 (ERR-1) Uncertainty of detection efficiency. M021000100035 STATUS (TABLE) Value from the text of AUJ,9,429,1956 M021000100036 HISTORY (19880629C) M021000100037 (19910202A) Corrected by V.Varlamov, V.Mclane. M021000100038 (20160224A) Corrected by SD and VV: dates, M021000100039 ERR-ANALYS, REACTION, lowercase. M021000100040 ENDBIB 38 0 M021000100041 COMMON 1 3 M021000100042 ERR-1 M021000100043 PER-CENT M021000100044 7. M021000100045 ENDCOMMON 3 0 M021000100046 ENDSUBENT 45 0 M021000199999 SUBENT M0210002 20160224 M082M021000200001 BIB 2 2 M021000200002 REACTION (3-LI-6(G,X)0-NN-1,,SIG) M021000200003 HISTORY (20160224A) Corrected by SD and VV: REACTION. M021000200004 ENDBIB 2 0 M021000200005 NOCOMMON 0 0 M021000200006 DATA 3 1 M021000200007 EN DATA ERR-S M021000200008 MEV MB MB M021000200009 6.2 0.3 0.2 M021000200010 ENDDATA 3 0 M021000200011 ENDSUBENT 10 0 M021000299999 ENDENTRY 2 0 M021099999999