ENTRY 22108 20060514 21772210800000001 SUBENT 22108001 20060514 21772210800100001 BIB 16 68 2210800100002 REFERENCE (J,ARI,39,(5),407,1988) 2210800100003 TITLE -Excitation functions of Nb-93(N,2N)Nb-92-m, 2210800100004 Nb-93(N,a)Y-90-m,g, La-139(N,a)Cs-136 and 2210800100005 Ta-181(N,P)Hf-181 reactions in the energy range of 2210800100006 12.5 - 19.6 MeV. 2210800100007 AUTHOR (R.Woelfle,A.Mannan,S.M.Qaim,H.Liskien,R.Widera) 2210800100008 INSTITUTE (2ZZZGEL) Experimental site, H.Liskien, r.Woelle 2210800100009 (2GERJUL) R.Widera, S.M.Qaim 2210800100010 (3PAKNIL) A.Mannan 2210800100011 FACILITY (VDG,2ZZZGEL) CN-type Van de Graaff accelerator 2210800100012 at GEEL. About 40 - 50 micro-amps of deuterons were 2210800100013 accelerated to 3 MeV. 2210800100014 INC-SOURCE (D-T) Neutrons in the energy range 12.5 to 19.6 MeV 2210800100015 were produced with an absorbed titanium-tritium target2210800100016 by using 15 different emerging angles. The tritium 2210800100017 target was a 3 mg/cm2 T-Ti layer on a 4 cm diameter by2210800100018 0.3 mm thick silver sheet, cooled by a thin water 2210800100019 film. 2210800100020 INC-SPECT .The neutron spectrum effective at each sample was cal-2210800100021 culated using a MONTE-CARLO code based on the kine- 2210800100022 matics of the T(D,N) reaction. 2210800100023 METHOD (ACTIV) Activation technique in combination with high- 2210800100024 resolution gamma-ray spectroscopy was used to measure 2210800100025 the activity from the Y-90m, Nb-92m, Cs-136 and Hf-1812210800100026 products, as well as the Na-24 monitor activity. 2210800100027 (CHSEP) The Y-90g product was radiochemically separated2210800100028 and the beta- activity was counted. 2210800100029 DETECTOR (GELI) A 35 cm3 Ge(Li) detector was used for the gamma 2210800100030 measurements, while beta-ray counting was employed for2210800100031 the beta emitter Y-90g. The latter measurement was 2210800100032 started about 30 hours after the end of the 2210800100033 irradiation, in order to have complete decay of Y-90m.2210800100034 (TELES) A proton recoil telescope, placed at an angle 2210800100035 of 16 degrees and a distance of 80 cm from the neutron2210800100036 source was used to measure the neutron fluence. 2210800100037 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) Activation. 2210800100038 (1-H-1(N,EL)1-H-1,,SIG) Proton recoil telescope. 2210800100039 .A weighted average of these two fluence monitors was 2210800100040 used. The values agreed in general within 5 percent. 2210800100041 DECAY-MON (11-NA-24,14.96HR,DG,1368.,1.) 2210800100042 SAMPLE .The samples consisted of 2 cm diameter by 0.5 cm thick2210800100043 discs of metal or oxide powder, pressed at a pressure 2210800100044 of 18 tons/cm2. The purities were for Nb g.t. 99.5 2210800100045 percent, for Ta g.t. 99.7 percent, while the La sample2210800100046 was the compound La2O3 of technical quality. The 2210800100047 samples were sandwiched between two aluminium sheets, 2210800100048 2 cm in diameter by 0.1 cm thick. The distance from 2210800100049 the source to the sample middle plane was 7.8 cm. 2210800100050 Irradiations were performed for 40 to 67 hours. 2210800100051 CORRECTION .The gamma count rates were corrected for self-absorp- 2210800100052 tion, pile up, coincidence loss, geometry, efficiency 2210800100053 of the detector and gamma-ray abundance. The beta 2210800100054 count rates were corrected for chemical yield, absorp-2210800100055 tion in the counter window, finite-size geometry and 2210800100056 efficiency of the detector. 2210800100057 ERR-ANALYS (ERR-T) The total errors were composed of the 2210800100058 following contributions 2210800100059 (ERR-1) Sample weight error 2210800100060 (ERR-S) Max counting statistics error 2210800100061 (ERR-2) Efficiency of detector error 2210800100062 (ERR-4) Correction for geometry error 2210800100063 (ERR-5) Max uncertainty in neutron fluence error 2210800100064 STATUS .Data taken from main ref. 2210800100065 HISTORY (19881215C) N.O. 2210800100066 (19890203E) 2210800100067 (20060426A) Date is corrected. Errors are made mashine 2210800100068 retrievable - SM 2210800100069 (20060514U) Last checking has been done. 2210800100070 ENDBIB 68 0 2210800100071 NOCOMMON 0 0 2210800100072 ENDSUBENT 71 0 2210800199999 SUBENT 22108002 20060514 21772210800200001 BIB 5 10 2210800200002 REACTION (41-NB-93(N,2N)41-NB-92-M,,SIG) 2210800200003 DECAY-DATA (41-NB-92-M,10.15D,DG,934.,.992) 2210800200004 ERR-ANALYS The total errors were composed of the 2210800200005 following contributions 2210800200006 .ERR-S, ERR-1, ERR-2, ERR-4, ERR-5 see SAN 001 2210800200007 (ERR-3) Correction for self absorption error 2210800200008 STATUS .Data taken from main ref. 2210800200009 HISTORY (19881215C) N.O. 2210800200010 (19890203E) 2210800200011 (20060514U) DATA-ERR to ERR-T changed 2210800200012 ENDBIB 10 0 2210800200013 COMMON 6 3 2210800200014 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 2210800200015 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2210800200016 1. 0.1 3. 2. 1.4 5.32210800200017 ENDCOMMON 3 0 2210800200018 DATA 4 15 2210800200019 EN EN-RSL DATA ERR-T 2210800200020 MEV MEV MB MB 2210800200021 1.255E+01 2.7E-01 4.57E+02 2.3E+01 2210800200022 1.269E+01 2.9E-01 4.71E+02 2.4E+01 2210800200023 1.335E+01 3.8E-01 4.90E+02 2.3E+01 2210800200024 1.348E+01 4.0E-01 4.78E+02 2.3E+01 2210800200025 1.434E+01 4.9E-01 4.84E+02 2.3E+01 2210800200026 1.441E+01 4.9E-01 4.87E+02 2.3E+01 2210800200027 1.580E+01 5.9E-01 4.65E+02 2.4E+01 2210800200028 1.586E+01 5.8E-01 4.64E+02 2.3E+01 2210800200029 1.686E+01 6.0E-01 4.32E+02 2.2E+01 2210800200030 1.700E+01 6.0E-01 4.36E+02 2.2E+01 2210800200031 1.786E+01 6.0E-01 4.30E+02 2.2E+01 2210800200032 1.806E+01 5.7E-01 4.19E+02 2.1E+01 2210800200033 1.875E+01 5.1E-01 3.98E+02 2.0E+01 2210800200034 1.894E+01 4.9E-01 3.85E+02 1.9E+01 2210800200035 1.958E+01 2.5E-01 3.43E+02 1.8E+01 2210800200036 ENDDATA 17 0 2210800200037 ENDSUBENT 36 0 2210800299999 SUBENT 22108003 20060514 21772210800300001 BIB 5 13 2210800300002 REACTION (41-NB-93(N,A)39-Y-90-M,,SIG) 2210800300003 DECAY-DATA (39-Y-90-M,3.19HR,DG,480.,.914) 2210800300004 ERR-ANALYS The total errors were composed of the 2210800300005 following contributions 2210800300006 .ERR-S, ERR-1, ERR-2, ERR-4, ERR-5 see SAN 001 2210800300007 (ERR-3) Correction for self absorption error 2210800300008 (ERR-6) Uncertainty in half-life error 2210800300009 (ERR-7) Gamma-ray abundance error 2210800300010 (ERR-8) Correction for coincidence loss error 2210800300011 STATUS .Data taken from main ref. 2210800300012 HISTORY (19881215C) N.O. 2210800300013 (19890203E) 2210800300014 (20060514U) DATA-ERR to ERR-T changed 2210800300015 ENDBIB 13 0 2210800300016 COMMON 9 6 2210800300017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 2210800300018 ERR-6 ERR-7 ERR-8 2210800300019 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2210800300020 PER-CENT PER-CENT PER-CENT 2210800300021 5.4 0.1 3. 3.2 1.4 3.52210800300022 2.6 1. 2.9 2210800300023 ENDCOMMON 6 0 2210800300024 DATA 4 15 2210800300025 EN EN-RSL DATA ERR-T 2210800300026 MEV MEV MB MB 2210800300027 1.255E+01 2.7E-01 5.18 4.4E-01 2210800300028 1.269E+01 2.9E-01 5.20 4.2E-01 2210800300029 1.335E+01 3.8E-01 5.67 4.6E-01 2210800300030 1.348E+01 4.0E-01 5.31 4.4E-01 2210800300031 1.434E+01 4.9E-01 6.15 5.1E-01 2210800300032 1.441E+01 4.9E-01 6.82 5.5E-01 2210800300033 1.580E+01 5.9E-01 6.45 5.5E-01 2210800300034 1.586E+01 5.8E-01 7.12 5.8E-01 2210800300035 1.686E+01 6.0E-01 6.06 5.1E-01 2210800300036 1.700E+01 6.0E-01 6.52 5.4E-01 2210800300037 1.786E+01 6.0E-01 6.84 5.7E-01 2210800300038 1.806E+01 5.7E-01 5.92 4.9E-01 2210800300039 1.875E+01 5.1E-01 6.47 5.5E-01 2210800300040 1.894E+01 4.9E-01 6.49 5.4E-01 2210800300041 1.958E+01 2.5E-01 6.25 4.7E-01 2210800300042 ENDDATA 17 0 2210800300043 ENDSUBENT 42 0 2210800399999 SUBENT 22108004 20060514 21772210800400001 BIB 5 13 2210800400002 REACTION (41-NB-93(N,A)39-Y-90,,SIG) 2210800400003 DECAY-DATA (39-Y-90-M,3.19HR,DG,480.,.914) 2210800400004 (39-Y-90-G,64.1HR,B-,2300.,.99) 2210800400005 ERR-ANALYS The total errors were composed of the 2210800400006 following contributions 2210800400007 .ERR-S, ERR-1, ERR-2, ERR-4, ERR-5 see SAN 001 2210800400008 (ERR-6) Chemical yield error 2210800400009 (ERR-7) Dead time of beta counting error 2210800400010 (ERR-8) Beta-ray abundance error 2210800400011 STATUS .Data taken from main ref. 2210800400012 HISTORY (19881215C) N.O. 2210800400013 (19890203E) 2210800400014 (20060514U) DATA-ERR to ERR-T changed 2210800400015 ENDBIB 13 0 2210800400016 COMMON 8 6 2210800400017 ERR-S ERR-1 ERR-2 ERR-4 ERR-5 ERR-6 2210800400018 ERR-7 ERR-8 2210800400019 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2210800400020 PER-CENT PER-CENT 2210800400021 0.5 0.1 4. 5. 3.5 5.2210800400022 0.5 1. 2210800400023 ENDCOMMON 6 0 2210800400024 DATA 4 15 2210800400025 EN EN-RSL DATA ERR-T 2210800400026 MEV MEV MB MB 2210800400027 1.255E+01 2.7E-01 5.9 5.2E-01 2210800400028 1.269E+01 2.9E-01 7.09 6.3E-01 2210800400029 1.335E+01 3.8E-01 7.84 6.8E-01 2210800400030 1.348E+01 4.0E-01 7.10 6.2E-01 2210800400031 1.434E+01 4.9E-01 7.36 6.4E-01 2210800400032 1.441E+01 4.9E-01 7.20 6.2E-01 2210800400033 1.580E+01 5.9E-01 8.23 7.3E-01 2210800400034 1.586E+01 5.8E-01 6.99 6.2E-01 2210800400035 1.686E+01 6.0E-01 7.06 6.2E-01 2210800400036 1.700E+01 6.0E-01 7.24 6.4E-01 2210800400037 1.786E+01 6.0E-01 9.89 8.7E-01 2210800400038 1.806E+01 5.7E-01 5.74 5.0E-01 2210800400039 1.875E+01 5.1E-01 6.83 6.0E-01 2210800400040 1.894E+01 4.9E-01 6.55 5.8E-01 2210800400041 1.958E+01 2.5E-01 5.61 5.0E-01 2210800400042 ENDDATA 17 0 2210800400043 ENDSUBENT 42 0 2210800499999 SUBENT 22108005 20060514 21772210800500001 BIB 5 13 2210800500002 REACTION (57-LA-139(N,A)55-CS-136,,SIG) 2210800500003 DECAY-DATA (55-CS-136,13.16D,DG,1048.,.7984) 2210800500004 ERR-ANALYS The total errors were composed of the 2210800500005 following contributions 2210800500006 .ERR-S, ERR-1, ERR-2, ERR-4, ERR-5 see SAN 001 2210800500007 (ERR-3) Correction for self absorption error 2210800500008 (ERR-6) Uncertainty in half-life error 2210800500009 (ERR-7) Gamma-ray abundance error 2210800500010 (ERR-8) Correction for coincidence loss error 2210800500011 STATUS .Data taken from main ref. 2210800500012 HISTORY (19881215C) N.O. 2210800500013 (19890203E) 2210800500014 (20060514U) DATA-ERR to ERR-T changed 2210800500015 ENDBIB 13 0 2210800500016 COMMON 9 6 2210800500017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 2210800500018 ERR-6 ERR-7 ERR-8 2210800500019 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2210800500020 PER-CENT PER-CENT PER-CENT 2210800500021 6.3 0.5 3. 0.8 0.5 3.42210800500022 1. 2. 5.8 2210800500023 ENDCOMMON 6 0 2210800500024 DATA 4 15 2210800500025 EN EN-RSL DATA ERR-T 2210800500026 MEV MEV MB MB 2210800500027 1.261E+01 2.8E-01 1.68 1.6E-01 2210800500028 1.263E+01 2.8E-01 1.64 1.4E-01 2210800500029 1.340E+01 4.0E-01 2.13 2.1E-01 2210800500030 1.342E+01 3.9E-01 2.01 1.8E-01 2210800500031 1.437E+01 5.0E-01 2.43 2.0E-01 2210800500032 1.438E+01 4.9E-01 2.37 2.3E-01 2210800500033 1.582E+01 5.9E-01 2.93 2.4E-01 2210800500034 1.584E+01 5.9E-01 2.69 2.5E-01 2210800500035 1.691E+01 6.2E-01 3.30 3.0E-01 2210800500036 1.694E+01 6.0E-01 3.41 2.9E-01 2210800500037 1.795E+01 5.7E-01 3.19 2.5E-01 2210800500038 1.797E+01 5.7E-01 3.35 2.8E-01 2210800500039 1.883E+01 5.0E-01 3.41 2.7E-01 2210800500040 1.886E+01 4.9E-01 3.33 2.6E-01 2210800500041 1.958E+01 2.5E-01 3.27 2.6E-01 2210800500042 ENDDATA 17 0 2210800500043 ENDSUBENT 42 0 2210800599999 SUBENT 22108006 20060514 21772210800600001 BIB 5 13 2210800600002 REACTION (73-TA-181(N,P)72-HF-181,,SIG) 2210800600003 DECAY-DATA (72-HF-181,42.4D,DG,482.,.812) 2210800600004 ERR-ANALYS The total errors were composed of the 2210800600005 following contributions 2210800600006 .ERR-S, ERR-1, ERR-2, ERR-4, ERR-5 see SAN 001 2210800600007 (ERR-3) Correction for self absorption error 2210800600008 (ERR-6) Uncertainty in half-life error 2210800600009 (ERR-7) Gamma-ray abundance error 2210800600010 (ERR-8) Correction for coincidence loss error 2210800600011 STATUS .Data taken from main ref. 2210800600012 HISTORY (19881215C) N.O. 2210800600013 (19890203E) 2210800600014 (20060514U) DATA-ERR to ERR-T changed 2210800600015 ENDBIB 13 0 2210800600016 COMMON 9 6 2210800600017 ERR-S ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 2210800600018 ERR-6 ERR-7 ERR-8 2210800600019 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2210800600020 PER-CENT PER-CENT PER-CENT 2210800600021 3.5 0.1 3. 2.9 0.5 3.32210800600022 1.4 1. 1.8 2210800600023 ENDCOMMON 6 0 2210800600024 DATA 4 15 2210800600025 EN EN-RSL DATA ERR-T 2210800600026 MEV MEV MB MB 2210800600027 1.256E+01 2.7E-01 1.61 1.1E-01 2210800600028 1.267E+01 2.8E-01 1.57 1.1E-01 2210800600029 1.336E+01 3.9E-01 2.42 1.5E-01 2210800600030 1.346E+01 4.0E-01 2.37 1.6E-01 2210800600031 1.435E+01 4.9E-01 3.84 2.5E-01 2210800600032 1.440E+01 4.9E-01 3.34 2.1E-01 2210800600033 1.581E+01 6.0E-01 5.16 3.2E-01 2210800600034 1.585E+01 5.8E-01 5.68 3.6E-01 2210800600035 1.688E+01 5.9E-01 5.89 3.5E-01 2210800600036 1.699E+01 6.1E-01 6.58 4.0E-01 2210800600037 1.788E+01 6.0E-01 6.79 4.0E-01 2210800600038 1.803E+01 5.6E-01 7.73 4.6E-01 2210800600039 1.877E+01 5.0E-01 7.72 4.5E-01 2210800600040 1.892E+01 5.0E-01 8.10 4.8E-01 2210800600041 1.958E+01 2.6E-01 7.94 4.7E-01 2210800600042 ENDDATA 17 0 2210800600043 ENDSUBENT 42 0 2210800699999 ENDENTRY 6 0 2210899999999