ENTRY 21428 20230516 2142800000001 SUBENT 21428001 20230516 20231011 2142800100001 BIB 13 34 2142800100002 TITLE Measurements of eta for GLEEP pile neutrons 2142800100003 AUTHOR (D.J.Littler,E.E.Lockett) 2142800100004 REFERENCE (P,AERE-NP/R-2104,7(2),1957) final publication 2142800100005 Prelim. results: 2142800100006 (B,PR.NUC.EN.,1,1,1956) 2.29(3) for U233, 2142800100007 2.08(2) for U235 2142800100008 (C,55GENEVA,4,349,1955) 2.23(5) for U233, 2142800100009 2.06(4) for U235 2142800100010 (C,55GENEVA,4,307,1955) 2.18(8) for U233, 2142800100011 2.04(4) for U235 2142800100012 The session record starting from p349 gives the 2142800100013 presentation which is revised from the original paper 2142800100014 P/425. Revised data are presented in Table III of p3512142800100015 which are slightly different from data in 002-003. 2142800100016 INSTITUTE (2UK HAR) 2142800100017 FACILITY (OSCIP) Pile oscillator. 2142800100018 (REAC,2UK HAR) GLEEP reactor. 2142800100019 INC-SOURCE (REAC) Thermal reactor. 2142800100020 INC-SPECT The neutron spectrum will approximate well 2142800100021 to a pure Maxwellian spectrum for both U-233 2142800100022 and U-235 which show little variation in eta in 2142800100023 the thermal and near thermal region. 2142800100024 SAMPLE Enriched U-233 and U-235 samples, no details. 2142800100025 METHOD Modulation of reactivity. 2142800100026 MONITOR (5-B-0(N,ABS),,SIG) 2200 m/sec value taken 2142800100027 as 710 b. 2142800100028 ERR-ANALYS (DATA-ERR) One standard deviation, no details. 2142800100029 STATUS (TABLE) Data from AERE-NP/R-2104. 2142800100030 HISTORY (19800313T) 2142800100031 (20120917A) SD: Updated to new date formats,lower case.2142800100032 Corrected according last EXFOR rules and Dict. 2142800100033 Ref. corrected (J.Progr.Nucl.Ener.,1,34,1956 -> 2142800100034 book: Pr.Nuc.En.,1,1,1956) 2142800100035 (20230516A) SD: Corrections in Subents 002, 003. 2142800100036 ENDBIB 34 0 2142800100037 COMMON 2 3 2142800100038 EN-DUMMY MONIT 2142800100039 EV B 2142800100040 2.53E-02 710. 2142800100041 ENDCOMMON 3 0 2142800100042 ENDSUBENT 41 0 2142800199999 SUBENT 21428002 20230516 20231011 2142800200001 BIB 2 4 2142800200002 REACTION (92-U-233(N,ABS),,ETA,,MXW) Maxwellian average 2142800200003 value. Correction to 2200 m/sec value is less 2142800200004 than 0.2%. 2142800200005 HISTORY (20230516A) SD: Data units updated (NO-DIM -> PRT/REAC)2142800200006 ENDBIB 4 0 2142800200007 NOCOMMON 0 0 2142800200008 DATA 2 1 2142800200009 DATA DATA-ERR 2142800200010 PRT/REAC PRT/REAC 2142800200011 2.2600E+00 6.0000E-02 2142800200012 ENDDATA 3 0 2142800200013 ENDSUBENT 12 0 2142800299999 SUBENT 21428003 20230516 20231011 2142800300001 BIB 2 4 2142800300002 REACTION (92-U-235(N,ABS),,ETA,,MXW) Maxwellian average 2142800300003 value, correction to 2200 m/sec value is less 2142800300004 than 0.2%. 2142800300005 HISTORY (20230516A) SD: Data units updated (NO-DIM -> PRT/REAC)2142800300006 ENDBIB 4 0 2142800300007 NOCOMMON 0 0 2142800300008 DATA 2 1 2142800300009 DATA DATA-ERR 2142800300010 PRT/REAC PRT/REAC 2142800300011 2.0500E+00 5.0000E-02 2142800300012 ENDDATA 3 0 2142800300013 ENDSUBENT 12 0 2142800399999 ENDENTRY 3 0 2142899999999