ENTRY 23225 20140216 22382322500000001 SUBENT 23225001 20140216 22382322500100001 BIB 14 19 2322500100002 TITLE Measurements with the niobium neutron fluence detector 2322500100003 at the PTB 2322500100004 AUTHOR (W.G.Alberts,R.Hollnagel,K.Knauf,M.Matzke,W.Pessara) 2322500100005 INSTITUTE (2GERPTB) 2322500100006 REFERENCE (C,82GAITHERS,1,433,1982) 2322500100007 INC-SOURCE (CF252) 2.3E+8 neutrons/sec 2322500100008 INC-SPECT Negligible proportion of thermal and epithermal 2322500100009 neutrons, i.e., activation of impurities (180 ug/g Ta)2322500100010 was negligible. 2322500100011 SAMPLE Metallic Nb foils (10 mm diam., 28 um thick) and In 2322500100012 foil (50 um thick). 2322500100013 Both at a 5 mm distance to the Ge detector. 2322500100014 DETECTOR (GELI) 2322500100015 METHOD (ACTIV) Irradiated for 40 days (1.2E+14 neutrons/cm2) 2322500100016 MONITOR (49-IN-115(N,INL)49-IN-115-M,,SIG,,FIS) 2322500100017 DECAY-MON (49-IN-115-M,0.1869D,DG,336.) 2322500100018 MONIT-REF (21003004,W.Mannhart+,J,NSE,69,333,1979) 2322500100019 ADD-RES (DECAY) Emission probabilities of K X-rays 2322500100020 HISTORY (20140216C) On 2322500100021 ENDBIB 19 0 2322500100022 NOCOMMON 0 0 2322500100023 ENDSUBENT 22 0 2322500199999 SUBENT 23225002 20140216 22382322500200001 BIB 5 16 2322500200002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG,,FIS) 2322500200003 DECAY-DATA (41-NB-93-M,16.0YR,XR,16.6,0.0892) 2322500200004 CORRECTION The decay of 115mIn (0.1869 d) and 252Cf (2.65 a) 2322500200005 during irradiation was taken into account. 2322500200006 ERR-ANALYS (ERR-T) Total uncertainty (7.0%) 2322500200007 (ERR-1,,,U) Count rate for Nb foil (3.0%) 2322500200008 (ERR-2,,,U) Count rate for standard (0.5%) 2322500200009 (ERR-3) Activity of standard (1.3%) 2322500200010 (ERR-4) Sample-detector distance (0.8%) 2322500200011 (ERR-5) Self-absorption (3.3%) 2322500200012 (ERR-6) 93mNb half-life (3.1%) 2322500200013 (ERR-7) In activity (2.5%) 2322500200014 (ERR-8) Syst. unc. of flux determination at 2322500200015 Nb foil position (2.0%) 2322500200016 (MONIT-ERR) In cross section (2.5%) 2322500200017 STATUS (TABLE) Abstract of 4th ASTM-EURATOM Symp. vol.1 p.433 2322500200018 ENDBIB 16 0 2322500200019 COMMON 8 6 2322500200020 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2322500200021 ERR-7 ERR-8 2322500200022 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2322500200023 PER-CENT PER-CENT 2322500200024 3.0 0.5 1.3 0.8 3.3 3.1 2322500200025 2.5 2.0 2322500200026 ENDCOMMON 6 0 2322500200027 DATA 5 1 2322500200028 KT-DUMMY DATA ERR-T MONIT MONIT-ERR 2322500200029 MEV MB MB MB MB 2322500200030 1.42 149. 10. 195. 5. 2322500200031 ENDDATA 3 0 2322500200032 ENDSUBENT 31 0 2322500299999 SUBENT 23225003 20140216 22382322500300001 BIB 5 5 2322500300002 REACTION (41-NB-93(N,2N)41-NB-92-M,,SIG,,FIS) 2322500300003 DECAY-DATA (41-NB-92-M,,DG,935.) 2322500300004 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 2322500300005 COMMENT By author: measured with very low counting statistics 2322500300006 STATUS (TABLE) Text(p440) of 4th ASTM-EURATOM Symp.vol.1 p.4332322500300007 ENDBIB 5 0 2322500300008 NOCOMMON 0 0 2322500300009 DATA 5 1 2322500300010 KT-DUMMY DATA DATA-ERR MONIT MONIT-ERR 2322500300011 MEV MB MB MB MB 2322500300012 1.42 0.7 0.2 195. 5. 2322500300013 ENDDATA 3 0 2322500300014 ENDSUBENT 13 0 2322500399999 ENDENTRY 3 0 2322599999999