ENTRY 23008 20071203 21892300800000001 SUBENT 23008001 20071203 21892300800100001 BIB 12 26 2300800100002 TITLE Improvement of accuracy of Zr/Nb activation-rate ratio 2300800100003 method for D-T neutron source energy determination 2300800100004 AUTHOR (T.Iguchi, K.Nakata, M.Nakazawa) 2300800100005 INSTITUTE (2JPNTOK) Department of Nuclear Engineering, Faculty 2300800100006 of Engineering 2300800100007 REFERENCE (J,NST,24,(12),1076,198712) 2300800100008 INC-SOURCE Beam intensity is about 10 micro-Ampere. 2300800100009 (D-T) 3H(d,n)4He at 220 kV 2300800100010 SAMPLE - Chemical-form of target is element. 2300800100011 - Physical-form of target is solid. 2300800100012 METHOD (ACTIV,GSPEC) Irradiated for 6 hours 2300800100013 (ASSOP) To normalize to absolute neutron fluence 2300800100014 FACILITY (CCW,2JPNETL) Japanese 14 MeV Standard neutron field 2300800100015 DETECTOR (HPGE) To measure induced radioactivities 2300800100016 ERR-ANALYS (ERR-T) Total uncertainty 2300800100017 (ERR-1) Uncertainty due to accuracy of neutron flux 2300800100018 determination 2300800100019 (ERR-2) Uncertainty due to photopeak efficiency 2300800100020 (ERR-3) Uncertainty due to branching ratio 2300800100021 (ERR-4) Uncertanity due to correction for neutron 2300800100022 self-shielding 2300800100023 (ERR-5) Uncertainty due to correction for gamma-ray 2300800100024 self-absorption 2300800100025 (ERR-SYS) Total systematic uncertainty 2300800100026 STATUS (TABLE) Taken from Table 2, p1078 of reference 2300800100027 HISTORY (20071026C) 2300800100028 ENDBIB 26 0 2300800100029 COMMON 6 3 2300800100030 ERR-SYS ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 2300800100031 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2300800100032 4.0 3.0 1.9 0.5 0.5 0.5 2300800100033 ENDCOMMON 3 0 2300800100034 ENDSUBENT 33 0 2300800199999 SUBENT 23008002 20071203 21892300800200001 BIB 4 4 2300800200002 REL-REF (A,30640008,J.Csikai,C,82ANTWER,,414,1982) 2300800200003 REACTION (41-NB-93(N,2N)41-NB-92-M,,SIG) 2300800200004 DECAY-DATA (41-NB-92-M,10.15D,DG,934.5,0.991) 2300800200005 SAMPLE Target enrichment is 100.0%. 2300800200006 ENDBIB 4 0 2300800200007 NOCOMMON 0 0 2300800200008 DATA 3 5 2300800200009 EN DATA ERR-T 2300800200010 MEV MB MB 2300800200011 13.81 459. 19. 2300800200012 14.07 475. 19. 2300800200013 14.33 460. 19. 2300800200014 14.70 446. 18. 2300800200015 14.76 442. 18. 2300800200016 ENDDATA 7 0 2300800200017 ENDSUBENT 16 0 2300800299999 SUBENT 23008003 20071203 21892300800300001 BIB 4 5 2300800300002 REL-REF (A,30640007,J.Csikai,C,82ANTWER,,414,1982) 2300800300003 (A,,G.Winkler+,C,82ANTWER,,400,1982) 2300800300004 REACTION (40-ZR-90(N,2N)40-ZR-89,,SIG) 2300800300005 DECAY-DATA (40-ZR-89,3.27D,DG,909.2,0.998) 2300800300006 SAMPLE Target enrichment is 51.46%. 2300800300007 ENDBIB 5 0 2300800300008 NOCOMMON 0 0 2300800300009 DATA 3 5 2300800300010 EN DATA ERR-T 2300800300011 MEV MB MB 2300800300012 13.81 559. 23. 2300800300013 14.07 636. 26. 2300800300014 14.33 704. 29. 2300800300015 14.70 785. 32. 2300800300016 14.76 786. 32. 2300800300017 ENDDATA 7 0 2300800300018 ENDSUBENT 17 0 2300800399999 ENDENTRY 3 0 2300899999999