ENTRY 20258 19831122 00002025800000001 SUBENT 20258001 19831122 00002025800100001 BIB 12 26 2025800100002 INSTITUTE (2BLGGHT) 2025800100003 REFERENCE (J,RCA,17,69,7207) 2025800100004 AUTHOR (P.DE REGGE, R.DAMS, J.HOSTE) 2025800100005 TITLE -THE MEAN FISSION NEUTRON CROSS-SECTIONS FOR THE 2025800100006 REACTIONS NB-93(N,A)Y-90G, NB-93(N,A)Y-90M AND 2025800100007 NB-93(N,2N)NB-92M.- 2025800100008 FACILITY .THETIS REACTOR OF THE GHENT UNIVERSITY 2025800100009 INSTITUTE FOR NUCLEAR SCIENCE. 2025800100010 INC-SPECT .NEUTRON DISTRIBUTION AT THE IRRADIATION SITE IS 2025800100011 APPROXIMATELY A PURE FISSION NEUTRON DISTRIBUTION 2025800100012 (DEVIATION FROM A PURE FISSION SPECTRUM IS LESS 10 2025800100013 PERCENT). FISSION FLUX IS ABOUT 3.E+10 N/CM2/SEC. 2025800100014 .FAST NEUTRON FLUX WAS DETERMINED USING THRESHOLD 2025800100015 REACTIONS WITH DIFFERENT EFFECTIVE THRESHOLDS. 2025800100016 SAMPLE .ABOUT 500 MG SPEC PURE NB(2)-O(5) SEALED IN SMALL 2025800100017 PLASTIC CONTAINER, 2025800100018 TOGETHER WITH 25 MG ALUMINIUM SPIRALS AS FLUX MONITOR 2025800100019 METHOD (ACTIV) ACTIVATION, A SEPARATION METHOD FOR YTTRIUM 2025800100020 FROM NIOBIUM WAS DEVELOPED USING FLUORIDE AND OXALATE 2025800100021 PRECIPITATIONS. 2025800100022 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 2025800100023 NO FURTHER INFORMATION. 2025800100024 STATUS .TAKEN FROM RADIOCHIMICA ACTA,17(1972)69. 2025800100025 HISTORY (721128C) 2025800100026 (740521E) 2025800100027 ERR-ANALYS .NO FURTHER INFORMATION. 2025800100028 ENDBIB 26 0 2025800100029 COMMON 1 3 2025800100030 EN-DUMMY 2025800100031 MEV 2025800100032 1.0000E+00 2025800100033 ENDCOMMON 3 0 2025800100034 ENDSUBENT 33 0 2025800199999 SUBENT 20258002 19831122 00002025800200001 BIB 5 9 2025800200002 REACTION (41-NB-93(N,2N)41-NB-92-M,,SIG,,SPA) 2025800200003 FAST NEUTRON CROSS SECTION. 2025800200004 DETECTOR (NAICR) CALIBRATED NAI(TL) DETECTOR, SEE RADIOCHIM. 2025800200005 ACTA, 9 (1968) 57. 2025800200006 PART-DET (DG ) DECAY GAMMAS. 2025800200007 COMMENT .RADIOCHEMICAL PURITY OF THE SEPARATED NB-92M WAS 2025800200008 CHECKED BY GE(LI) GAMMA SPECTROMETRY. 2025800200009 HISTORY (721128C) 2025800200010 (740521E) 2025800200011 ENDBIB 9 0 2025800200012 NOCOMMON 0 0 2025800200013 DATA 3 1 2025800200014 HL DATA DATA-ERR 2025800200015 D B B 2025800200016 1.0160E+01 4.2000E-07 7.0000E-09 2025800200017 ENDDATA 3 0 2025800200018 ENDSUBENT 17 0 2025800299999 SUBENT 20258003 19831122 00002025800300001 BIB 4 6 2025800300002 REACTION (41-NB-93(N,A)39-Y-90-G,,SIG,,SPA) 2025800300003 FAST NEUTRON CROSS SECTION. 2025800300004 DETECTOR .CALIBRATED G.M. TUBE WITH Y-90G SOURCE. 2025800300005 PART-DET (B- ) DECAY BETA-. 2025800300006 HISTORY (721128C) 2025800300007 (740521E) 2025800300008 ENDBIB 6 0 2025800300009 NOCOMMON 0 0 2025800300010 DATA 3 1 2025800300011 HL DATA DATA-ERR 2025800300012 HR B B 2025800300013 6.5500E+01 5.8500E-08 2.2000E-09 2025800300014 ENDDATA 3 0 2025800300015 ENDSUBENT 14 0 2025800399999 SUBENT 20258004 19831122 00002025800400001 BIB 4 7 2025800400002 REACTION (41-NB-93(N,A)39-Y-90-M,,SIG,,SPA) 2025800400003 FAST NEUTRON CROSS SECTION. 2025800400004 DETECTOR (NAICR) CALIBRATED NAI(TL) DETECTOR, SEE RADIOCHIM. 2025800400005 ACTA, 9 (1968) 57. 2025800400006 PART-DET (DG ) DECAY GAMMAS. 2025800400007 HISTORY (721128C) 2025800400008 (740521E) 2025800400009 ENDBIB 7 0 2025800400010 NOCOMMON 0 0 2025800400011 DATA 3 1 2025800400012 HL DATA DATA-ERR 2025800400013 HR B B 2025800400014 3.2000E+00 2.2100E-08 3.0000E-10 2025800400015 ENDDATA 3 0 2025800400016 ENDSUBENT 15 0 2025800499999 ENDENTRY 4 0 2025899999999