ENTRY 31545 20211005 32023154500000001 SUBENT 31545001 20211005 32023154500100001 BIB 15 49 3154500100002 TITLE Activation Cross Sections for Reactions Induced by 3154500100003 14.7-MeV Neutrons on Natural Calcium and Enriched 3154500100004 44Ca Targets 3154500100005 AUTHOR (E.Betak,E.Droste,S.Mikolajewski,W.Ratynski,E.Rurarz, 3154500100006 T.Kempisty,S.Raman) 3154500100007 INSTITUTE (3SLKSLO,3POLIPJ,1USAORL) 3154500100008 REFERENCE (J,NSE,132,295,1999) 3154500100009 FACILITY (CCW,3POLIPJ) 3154500100010 INC-SOURCE (D-T) The 14.7-MeV neutrons were produced in the 3154500100011 3H(d,n)4He reaction by bombarding thick 3154500100012 tritium-titanium targets with a deuteron beam from a 3154500100013 small Cockroft-Walton accelerator of 100 kV 3154500100014 SAMPLE The samples used were prepared by pressing 44CaCO3 3154500100015 and CaCO3 powders into disk-shaped polyethylene 3154500100016 containers. 3154500100017 The copper monitor foil (44-mm diam., 1-mm thick., 3154500100018 13.25-g mass) was 99.9% pure. 3154500100019 METHOD (STTA,ACTIV) All three samples (44CaCO3, natCaCO3, 3154500100020 and Cu) were placed one behind another in a stack-like 3154500100021 arrangement and were irradiated by the same 3154500100022 incident flux. 3154500100023 MONITOR (29-CU-65(N,2N)29-CU-64,,SIG) 3154500100024 DECAY-MON (29-CU-64,12.8HR,DG,1345.8,0.00471) 3154500100025 MONIT-REF (,,B,BYCHKOV,,,1982) 3154500100026 (,,R,IAEA-273,301,1987) 3154500100027 DETECTOR (HPGE) The gamma-ray spectra were registered with a 3154500100028 high-purity germanium detector (Canberra GC 1520, 3154500100029 72-cm3 volume, 1.8-keV energy resolution for 3154500100030 1332 keV). 3154500100031 The gamma-spectra from natural CaCO3 sample and copper 3154500100032 monitoring foil were taken with a 177-cm3 HPGe detector3154500100033 ERR-ANALYS (ERR-T) Uncertainties in the cross-section values are 3154500100034 composed of uncertainties from various sources entering3154500100035 into the well-known activation formula. 3154500100036 The dominant sources were: 3154500100037 (ERR-1,1.5,5.) gamma-ray detector efficiency: 1.5 to 5%3154500100038 (ERR-S,1.7,8.) photopeak counting statistics: 1.7 to 8%3154500100039 (ERR-2) neutron flux 3% 3154500100040 (ERR-3) self-absorption of gamma rays in the sample 3154500100041 0.5% 3154500100042 (ERR-4) sample weight 0.1% 3154500100043 (ERR-5) isotopic abundance 0.1% 3154500100044 (ERR-6) irradiation time 0.1% 3154500100045 (ERR-7) cooling time 0.1% 3154500100046 (ERR-8) measuring time 0.1% 3154500100047 STATUS (TABLE) Data from tables of the ref. 3154500100048 HISTORY (20050210C) SD 3154500100049 (20211004U) VS. SF3=X in 003; ERR-ANALYS updated; 3154500100050 DATA-ERR -> ERR-T in all subentries. 3154500100051 ENDBIB 49 0 3154500100052 COMMON 11 6 3154500100053 EN EN-ERR MONIT MONIT-ERR ERR-2 ERR-3 3154500100054 ERR-4 ERR-5 ERR-6 ERR-7 ERR-8 3154500100055 MEV MEV MB MB PER-CENT PER-CENT 3154500100056 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3154500100057 14.7 0.2 962. 12. 3. 0.5 3154500100058 0.1 0.1 0.1 0.1 0.1 3154500100059 ENDCOMMON 6 0 3154500100060 ENDSUBENT 59 0 3154500199999 SUBENT 31545002 20211005 32023154500200001 BIB 4 7 3154500200002 REACTION (20-CA-44(N,P)19-K-44,,SIG) 3154500200003 DECAY-DATA (19-K-44,22.13MIN,DG,1157.0,0.58,DG,2150.8,0.23) 3154500200004 SAMPLE Enriched sample (44Ca: 98.55+-0.03% , 3154500200005 40Ca : 1.36 +- 0.02%, 3154500200006 42Ca < 0.06%, 43Ca: 0.04 +- 0.01%, 3154500200007 46Ca < 0.01%, 48Ca < 0.01%), mass 206.4 mg. 3154500200008 HISTORY (20211004U) VS. DATA-ERR -> ERR-T 3154500200009 ENDBIB 7 0 3154500200010 NOCOMMON 0 0 3154500200011 DATA 2 1 3154500200012 DATA ERR-T 3154500200013 MB MB 3154500200014 39. 4. 3154500200015 ENDDATA 3 0 3154500200016 ENDSUBENT 15 0 3154500299999 SUBENT 31545003 20211005 32023154500300001 BIB 4 8 3154500300002 REACTION (20-CA-44(N,X)19-K-43,,SIG) 3154500300003 DECAY-DATA (19-K-43,22.3HR,DG,372.8,0.868,DG,617.5,0.792) 3154500300004 SAMPLE Enriched sample (44Ca: 98.55+-0.03% , 3154500300005 40Ca : 1.36 +- 0.02%, 3154500300006 42Ca < 0.06%, 43Ca: 0.04 +- 0.01%, 3154500300007 46Ca < 0.01%, 48Ca < 0.01%), mass 206.4 mg. 3154500300008 HISTORY (20211004U) VS. SF3=X c.f. Memos CP-D/0999 3154500300009 DATA-ERR -> ERR-T. 3154500300010 ENDBIB 8 0 3154500300011 NOCOMMON 0 0 3154500300012 DATA 2 1 3154500300013 DATA ERR-T 3154500300014 MB MB 3154500300015 3.0 0.3 3154500300016 ENDDATA 3 0 3154500300017 ENDSUBENT 16 0 3154500399999 SUBENT 31545004 20211005 32023154500400001 BIB 4 7 3154500400002 REACTION (20-CA-44(N,A)18-AR-41,,SIG) 3154500400003 DECAY-DATA (18-AR-41,1.822HR,G,1293.6,0.991) 3154500400004 SAMPLE Enriched sample (44Ca: 98.55+-0.03% , 3154500400005 40Ca : 1.36 +- 0.02%, 3154500400006 42Ca < 0.06%, 43Ca: 0.04 +- 0.01%, 3154500400007 46Ca < 0.01%, 48Ca < 0.01%), mass 206.4 mg. 3154500400008 HISTORY (20211004U) VS. DATA-ERR -> ERR-T 3154500400009 ENDBIB 7 0 3154500400010 NOCOMMON 0 0 3154500400011 DATA 2 1 3154500400012 DATA ERR-T 3154500400013 MB MB 3154500400014 31. 3. 3154500400015 ENDDATA 3 0 3154500400016 ENDSUBENT 15 0 3154500499999 SUBENT 31545005 20211005 32023154500500001 BIB 4 8 3154500500002 REACTION (20-CA-42(N,P)19-K-42,,SIG) 3154500500003 DECAY-DATA (19-K-42,12.360HR,DG,1524.7,0.181) 3154500500004 SAMPLE The 5.00-g sample 3154500500005 of natural isotopic abundance (40Ca:96.941 +- 0.018%, 3154500500006 42Ca < 0.647%, 43Ca: 0.135 +- 0.006%, 3154500500007 44Ca: 2.086 +- 0.012%, 46Ca < 0.004%, 48Ca < 0.187%) 3154500500008 was prepared from spectrographically pure CaCO3. 3154500500009 HISTORY (20211004U) VS. DATA-ERR -> ERR-T 3154500500010 ENDBIB 8 0 3154500500011 NOCOMMON 0 0 3154500500012 DATA 2 1 3154500500013 DATA ERR-T 3154500500014 MB MB 3154500500015 138. 12. 3154500500016 ENDDATA 3 0 3154500500017 ENDSUBENT 16 0 3154500599999 SUBENT 31545006 20211005 32023154500600001 BIB 4 8 3154500600002 REACTION (20-CA-43(N,P)19-K-43,,SIG) 3154500600003 DECAY-DATA (19-K-43,22.3HR,DG,372.8,0.868,DG,617.5,0.792) 3154500600004 SAMPLE The 5.00-g sample 3154500600005 of natural isotopic abundance (40Ca:96.941 +- 0.018%, 3154500600006 42Ca < 0.647%, 43Ca: 0.135 +- 0.006%, 3154500600007 44Ca: 2.086 +- 0.012%, 46Ca < 0.004%, 48Ca < 0.187%) 3154500600008 was prepared from spectrographically pure CaCO3. 3154500600009 HISTORY (20211004U) VS. DATA-ERR -> ERR-T 3154500600010 ENDBIB 8 0 3154500600011 NOCOMMON 0 0 3154500600012 DATA 2 1 3154500600013 DATA ERR-T 3154500600014 MB MB 3154500600015 90. 9. 3154500600016 ENDDATA 3 0 3154500600017 ENDSUBENT 16 0 3154500699999 SUBENT 31545007 20211005 32023154500700001 BIB 4 9 3154500700002 REACTION (20-CA-48(N,2N)20-CA-47,,SIG) 3154500700003 DECAY-DATA (20-CA-47,4.536D,DG,489.2,0.065,DG,807.9,0.065, 3154500700004 DG,1297.1,0.74) 3154500700005 SAMPLE The 5.00-g sample 3154500700006 of natural isotopic abundance (40Ca:96.941 +- 0.018%, 3154500700007 42Ca < 0.647%, 43Ca: 0.135 +- 0.006%, 3154500700008 44Ca: 2.086 +- 0.012%, 46Ca < 0.004%, 48Ca < 0.187%) 3154500700009 was prepared from spectrographically pure CaCO3. 3154500700010 HISTORY (20211004U) VS. DATA-ERR -> ERR-T 3154500700011 ENDBIB 9 0 3154500700012 NOCOMMON 0 0 3154500700013 DATA 2 1 3154500700014 DATA ERR-T 3154500700015 MB MB 3154500700016 613. 60. 3154500700017 ENDDATA 3 0 3154500700018 ENDSUBENT 17 0 3154500799999 ENDENTRY 7 0 3154599999999