ENTRY A0295 20200203 A093A029500000001 SUBENT A0295001 20200203 A093A029500100001 BIB 15 66 A029500100002 TITLE Excitation functions for the production of V-49 A029500100003 AUTHOR (H.Klewe-Nebenius,F.Michel,H.Muenzel,G.Pfennig) A029500100004 INSTITUTE (2GERKFK,2GERTHD) A029500100005 REFERENCE (J,RCA,33,177,1983) NSR Index=1983Kl10 A029500100006 FACILITY (ISOCY,2GERKFK) A029500100007 METHOD (STTA,ACTIV,INTB,BCINT,MOMIX). For each irradiation theA029500100008 the individual mn-54 calibration was used. Furthermore,A029500100009 for all alpha-irradiated sources the efficiencies A029500100010 were determined. Leaving off all values which were A029500100011 obviously too small due to bad positioning we A029500100012 calculated on average value of X-ray energy (5.41 keV) A029500100013 which was used to calculate the cross sections for A029500100014 protons, deuterons, He-3-induced reactions. A029500100015 DETECTOR (GELI) gamma-ray spectra aiming at the 835 keV gamma- A029500100016 ray of 54Mn were measured by means of two different A029500100017 Ge(Li) -detectors (11.2% efficiency, 1.9 keV resolutionA029500100018 and 15% efficiency, 1.78 keV resolution, respectively, A029500100019 for the 1332 keV gamma-ray of 60Co). A029500100020 (SILI) The sources were measured directly in front of A029500100021 a liquid nitrogen cooled Si(LI) -detector. A029500100022 SAMPLE Foils of natural vanadium(purity > 99.8%)with A029500100023 thicknesses of 8.1 and 9.9mg/cm**2, respectively, have A029500100024 been irradiated at various energies with protons, A029500100025 deuterons,He-3 and alpha-particles in the internal A029500100026 beam of the Karlsruhe Isochronous Cyclotron. A029500100027 COMMENT /by Authors/ In case of production of V-49 by alpha- A029500100028 irradiation of natural vanadium foils such a A029500100029 calibration activity is produced in the same targets byA029500100030 means of an (alpha,n)-reaction leading to Mn-54. This A029500100031 nucleus decays by electron capture mainly to the A029500100032 834.8 keV level of Cr-54 which de-excites by the A029500100033 respective ground state transition. The ratio of A029500100034 emitted k-X-rays to gamma-rays has been determined A029500100035 experimentally. A029500100036 Consequently, the absolute X-ray intensities for Mn-54 A029500100037 and from this also for V-49 can be determined from the A029500100038 same target foil ruling out uncertainties from the A029500100039 geometrical setup of source and detector and from the A029500100040 absorption. A029500100041 RAD-DET (25-MN-54,DG,XR) A029500100042 (23-V-49,XR) A029500100043 DECAY-DATA (25-MN-54,312.D,DG,834.8,0.99975, A029500100044 XR,5.41,0.24994) A029500100045 (23-V-49,330.D,XR,4.51) A029500100046 ERR-ANALYS (ERR-1) The error in the positioning of sources in A029500100047 front of X-ray detector protons, deuterons, tritons. A029500100048 (ERR-2) The error of Efficiency of Ge(LI) detector. A029500100049 (ERR-3) The error of accuracy of beam current A029500100050 integration. A029500100051 (ERR-4) The error in the target thickness. A029500100052 (ERR-S,10.,15.) Statistical uncertainty, V-X-rays peak A029500100053 area determination A029500100054 (DATA-ERR1,10.,15.) Statistical uncertainty, Mn-X-rays A029500100055 peak area determination A029500100056 (DATA-ERR2) Statistical uncertainty, gamma-X-rays peak A029500100057 area determination A029500100058 REL-REF (A,,M.Merkel+,J,RCA,29,173,1981) A029500100059 STATUS (CURVE).By CAJAD. Fig.1 of Radiochim.Acta,.33(1983)177 A029500100060 HISTORY (19860407C) A029500100061 (19870422A) According to Memo CP-D/161. A029500100062 (19980105A) Authors' list is corrected. A029500100063 (19990407U) Last checking has been done. A029500100064 (19990621A) DATE is corrected A029500100065 (20200203U) SD: DECAY-DATA updated according to the A029500100066 article. ERR-ANALYS updated. Part of uncertainties A029500100067 moved to Subents 002-005. ANALYSIS (AREA) deleted. A029500100068 ENDBIB 66 0 A029500100069 COMMON 5 3 A029500100070 ERR-1 ERR-2 ERR-3 ERR-4 DATA-ERR2 A029500100071 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT A029500100072 15. 10. 10. 5. 5. A029500100073 ENDCOMMON 3 0 A029500100074 ENDSUBENT 73 0 A029500199999 SUBENT A0295002 20200203 A093A029500200001 BIB 3 4 A029500200002 REACTION (23-V-51(P,X)23-V-49,,SIG) A029500200003 ERR-ANALYS (ERR-T,20.,25.) Total uncertainty A029500200004 HISTORY (20200203U) SD: ERR-ANALYS added. EN-ERR -> EN-ERR-DIG;A029500200005 DATA-ERR -> ERR-DIG. A029500200006 ENDBIB 4 0 A029500200007 COMMON 1 3 A029500200008 EN-ERR-DIG A029500200009 MEV A029500200010 0.22 A029500200011 ENDCOMMON 3 0 A029500200012 DATA 3 9 A029500200013 EN DATA ERR-DIG A029500200014 MEV MB MB A029500200015 13.79 0.61 0.03 A029500200016 15.84 1.05 0.06 A029500200017 17.26 2.42 0.13 A029500200018 18.44 2.38 0.12 A029500200019 20.10 3.06 0.16 A029500200020 20.49 4.48 0.24 A029500200021 21.99 5.36 0.28 A029500200022 23.58 23.7 1.2 A029500200023 24.92 33.4 1.8 A029500200024 ENDDATA 11 0 A029500200025 ENDSUBENT 24 0 A029500299999 SUBENT A0295003 20200203 A093A029500300001 BIB 3 4 A029500300002 REACTION (23-V-51(D,X)23-V-49,,SIG) A029500300003 ERR-ANALYS (ERR-T,,35.) Total uncertainty A029500300004 HISTORY (20200203A) SD: SF3=N+T->X in REACTION code.ERR-ANALYS A029500300005 added. EN-ERR -> EN-ERR-DIG; DATA-ERR -> ERR-DIG. A029500300006 ENDBIB 4 0 A029500300007 COMMON 1 3 A029500300008 EN-ERR-DIG A029500300009 MEV A029500300010 0.22 A029500300011 ENDCOMMON 3 0 A029500300012 DATA 3 4 A029500300013 EN DATA ERR-DIG A029500300014 MEV MB MB A029500300015 17.79 0.224 0.012 A029500300016 20.86 1.53 0.08 A029500300017 24.00 3.99 0.21 A029500300018 24.88 5.33 0.28 A029500300019 ENDDATA 6 0 A029500300020 ENDSUBENT 19 0 A029500399999 SUBENT A0295004 20200203 A093A029500400001 BIB 3 4 A029500400002 REACTION (23-V-51(HE3,X)23-V-49,,SIG) A029500400003 ERR-ANALYS (ERR-T,25.,30.) Total uncertainty A029500400004 HISTORY (20200203A) SD: SF3=N+A->X in REACTION code.ERR-ANALYS A029500400005 added. EN-ERR -> EN-ERR-DIG; DATA-ERR -> ERR-DIG. A029500400006 ENDBIB 4 0 A029500400007 COMMON 1 3 A029500400008 EN-ERR-DIG A029500400009 MEV A029500400010 0.22 A029500400011 ENDCOMMON 3 0 A029500400012 DATA 3 8 A029500400013 EN DATA ERR-DIG A029500400014 MEV MB MB A029500400015 8.59 0.93 0.05 A029500400016 12.64 35.6 1.9 A029500400017 14.29 45.7 2.4 A029500400018 15.70 44.8 2.3 A029500400019 19.33 61.0 3.0 A029500400020 26.71 37.5 2.0 A029500400021 29.15 26.5 1.4 A029500400022 41.34 15.4 0.8 A029500400023 ENDDATA 10 0 A029500400024 ENDSUBENT 23 0 A029500499999 SUBENT A0295005 20200203 A093A029500500001 BIB 3 4 A029500500002 REACTION (23-V-51(A,X)23-V-49,,SIG) A029500500003 ERR-ANALYS (ERR-T,20.,25.) Total uncertainty A029500500004 HISTORY (20200203A) SD: SF3=2N+A->X in REACTION code.ERR-ANALYSA029500500005 added. EN-ERR -> EN-ERR-DIG; DATA-ERR -> ERR-DIG. A029500500006 ENDBIB 4 0 A029500500007 COMMON 1 3 A029500500008 EN-ERR-DIG A029500500009 MEV A029500500010 0.22 A029500500011 ENDCOMMON 3 0 A029500500012 DATA 3 9 A029500500013 EN DATA ERR-DIG A029500500014 MEV MB MB A029500500015 27.41 1.36 0.07 A029500500016 29.14 0.89 0.05 A029500500017 33.97 56.4 3.0 A029500500018 37.44 116. 6. A029500500019 39.33 97. 5. A029500500020 40.04 145. 8. A029500500021 43.43 180. 9. A029500500022 46.42 200. 11. A029500500023 49.57 180. 9. A029500500024 ENDDATA 11 0 A029500500025 ENDSUBENT 24 0 A029500599999 ENDENTRY 5 0 A029599999999