ENTRY C3042 20250228 C304200000001 SUBENT C3042001 20250228 20250711 C304200100001 BIB 11 38 C304200100002 TITLE Production of 43Sc and 44gSc from natural CaF2 C304200100003 material using an FN Tandem accelerator C304200100004 AUTHOR (A.D.Nelson,A.M.Clark,Th.L.Bailey,L.K.Callahan, C304200100005 Ph.Collon) C304200100006 REFERENCE (J,ARI,215,111580,2025) C304200100007 #doi:10.1016/j.apradiso.2024.111580 C304200100008 INSTITUTE (1USANOT) C304200100009 FACILITY (VDGT,1USANOT) 10 MV FN Tandem accelerator, the C304200100010 Nuclear Science Laboratory (NSL) at the University of C304200100011 Notre Dame. C304200100012 DETECTOR (HPGE) Large volume, closed-end coaxial HPGe Canberra C304200100013 detector (Model: GC3518). C304200100014 SAMPLE natCaF2 powder sealed in the back with a small piece C304200100015 of Cu wire. The dimensions of the target were then C304200100016 just the internal dimensions of the packed cathode, 1 C304200100017 mm in diameter and 3.5 mm in length. Using the mass C304200100018 of the packed CaF2 powder and these internal C304200100019 dimensions of the cathode, the density for each C304200100020 packed cathode was calculated, with an overall C304200100021 average density of around 3.0+-0.2 g/cm3. C304200100022 ANALYSIS The total yield can then be found by using the C304200100023 calculated initial activity and the total charge C304200100024 collected on the cathode material Q, using C304200100025 Y=lambda*Ao/((Q/t1)*(1-exp(-lambda*t1))), where t1 is C304200100026 irradiation time, A0 is initial activity, lambda is C304200100027 isotope's decay const. C304200100028 ERR-ANALYS (ERR-T) Error bars on the measured data points were C304200100029 the result of the propagation of uncertainties due to C304200100030 Poisson statistics in the number of counts in the C304200100031 peak, uncertainties in the efficiency of the detector, C304200100032 the given uncertainties of lambda and Igamma from C304200100033 NNDC, a 5% uncertainty on the collected charge from C304200100034 the beam current, and uncertainties in the recording C304200100035 times. C304200100036 (ERR-1) The collected charge from the beam current. C304200100037 DECAY-DATA (21-SC-43,3.891HR,DG,372.9,0.225) C304200100038 (21-SC-44-G,,DG,1157.) C304200100039 HISTORY (20250228C) BP C304200100040 ENDBIB 38 0 C304200100041 COMMON 1 3 C304200100042 ERR-1 C304200100043 PER-CENT C304200100044 5.0 C304200100045 ENDCOMMON 3 0 C304200100046 ENDSUBENT 45 0 C304200199999 SUBENT C3042002 20250228 20250711 C304200200001 BIB 3 8 C304200200002 REACTION (20-CA-0(HE3,X)21-SC-43,,TTY,,PHY) C304200200003 METHOD (ACTIV) Samples 3-14: The irradiations were performed C304200200004 over two separate days, with Samples 1-14 being C304200200005 activated on one day and Samples 15-24 being C304200200006 activated on another, with both following the same C304200200007 procedure. C304200200008 STATUS (TABLE,,A.D.Nelson,J,ARI,215,111580,2025) - Table 2 C304200200009 (COREL,C3042003) Data from samples 15-24 C304200200010 ENDBIB 8 0 C304200200011 NOCOMMON 0 0 C304200200012 DATA 3 8 C304200200013 EN DATA ERR-T C304200200014 MEV MBQ/MUAHR MBQ/MUAHR C304200200015 25.22 828. 86. C304200200016 23.74 747. 81. C304200200017 22.25 580. 67. C304200200018 20.82 520. 63. C304200200019 19.35 493. 61. C304200200020 17.88 305. 45. C304200200021 16.43 268. 40. C304200200022 14.88 224. 33. C304200200023 ENDDATA 10 0 C304200200024 ENDSUBENT 23 0 C304200299999 SUBENT C3042003 20250228 20250711 C304200300001 BIB 3 8 C304200300002 REACTION (20-CA-0(HE3,X)21-SC-43,,TTY,,PHY) C304200300003 METHOD (ACTIV) Samples 15-24: The irradiations were performed C304200300004 over two separate days, with Samples 1-14 being C304200300005 activated on one day and Samples 15-24 being C304200300006 activated on another, with both following the same C304200300007 procedure. C304200300008 STATUS (TABLE,,A.D.Nelson,J,ARI,215,111580,2025) - Table 2 C304200300009 (COREL,C3042002) Data from samples 3-14 C304200300010 ENDBIB 8 0 C304200300011 NOCOMMON 0 0 C304200300012 DATA 3 10 C304200300013 EN DATA ERR-T C304200300014 MEV MBQ/MUAHR MBQ/MUAHR C304200300015 25.22 853. 59. C304200300016 23.62 603. 42. C304200300017 22.53 690. 48. C304200300018 21.05 603. 42. C304200300019 19.56 507. 35. C304200300020 18.09 407. 28. C304200300021 16.63 283. 20. C304200300022 15.12 200. 14. C304200300023 13.64 130. 9. C304200300024 12.05 75. 5. C304200300025 ENDDATA 12 0 C304200300026 ENDSUBENT 25 0 C304200399999 SUBENT C3042004 20250228 20250711 C304200400001 BIB 3 8 C304200400002 REACTION (20-CA-0(HE3,X)21-SC-44-G,,TTY,,PHY) C304200400003 METHOD (ACTIV) Samples 3-14: The irradiations were performed C304200400004 over two separate days, with Samples 1-14 being C304200400005 activated on one day and Samples 15-24 being C304200400006 activated on another, with both following the same C304200400007 procedure. C304200400008 STATUS (TABLE,,A.D.Nelson,J,ARI,215,111580,2025) - Table 2 C304200400009 (COREL,C3042005) Data from samples 15-24 C304200400010 ENDBIB 8 0 C304200400011 NOCOMMON 0 0 C304200400012 DATA 3 12 C304200400013 EN DATA ERR-T C304200400014 MEV MBQ/MUAHR MBQ/MUAHR C304200400015 25.22 502. 51. C304200400016 23.74 401. 44. C304200400017 22.25 218. 29. C304200400018 20.82 173. 26. C304200400019 19.35 178. 26. C304200400020 17.88 138. 22. C304200400021 16.43 98. 17. C304200400022 14.88 72. 13. C304200400023 13.46 55. 11. C304200400024 11.97 45. 8. C304200400025 10.5 25. 5. C304200400026 9. 14. 2. C304200400027 ENDDATA 14 0 C304200400028 ENDSUBENT 27 0 C304200499999 SUBENT C3042005 20250228 20250711 C304200500001 BIB 3 8 C304200500002 REACTION (20-CA-0(HE3,X)21-SC-44-G,,TTY,,PHY) C304200500003 METHOD (ACTIV) Samples 15-24: The irradiations were performed C304200500004 over two separate days, with Samples 1-14 being C304200500005 activated on one day and Samples 15-24 being C304200500006 activated on another, with both following the same C304200500007 procedure. C304200500008 STATUS (TABLE,,A.D.Nelson,J,ARI,215,111580,2025) - Table 2 C304200500009 (COREL,C3042004) Data from samples 3-14 C304200500010 ENDBIB 8 0 C304200500011 NOCOMMON 0 0 C304200500012 DATA 3 10 C304200500013 EN DATA ERR-T C304200500014 MEV MBQ/MUAHR MBQ/MUAHR C304200500015 25.22 372. 26. C304200500016 23.62 307. 22. C304200500017 22.53 254. 18. C304200500018 21.05 218. 15. C304200500019 19.56 139. 10. C304200500020 18.09 116. 8. C304200500021 16.63 96. 7. C304200500022 15.12 64. 5. C304200500023 13.64 53. 4. C304200500024 12.05 36. 3. C304200500025 ENDDATA 12 0 C304200500026 ENDSUBENT 25 0 C304200599999 ENDENTRY 5 0 C304299999999