ENTRY C3078 20250825 C307800000001 SUBENT C3078001 20250825 20260228 C307800100001 BIB 7 22 C307800100002 TITLE Filtering contaminants from a gamma-sum spectrum: C307800100003 Measurement of the 94Mo(p,gamma)95Tc cross section C307800100004 AUTHOR (R.Kelmar,J.P.McDonaugh,A.Simon,J.O'Reilly,A.C.Dombos, C307800100005 A.Gula,J.Koros,M.Matney,O.Olivas-Gomez,D.Robertson, C307800100006 E.Stech) C307800100007 REFERENCE (J,PR/C,109,035805,2024) C307800100008 #doi:10.1103/PhysRevC.109.035805 C307800100009 INSTITUTE (1USANOT) C307800100010 FACILITY (ACCEL,1USANOT) The University of Notre Dame 5U C307800100011 accelerator. C307800100012 INC-SPECT A beam of protons with center-of-mass energies C307800100013 between 1.5 and 4.5 MeV was impinged upon a target of C307800100014 isotopically enriched 94Mo. The beam current ranged C307800100015 from 5-900 nA and was increased at lower beam C307800100016 energies to compensate for the decreasing reaction C307800100017 cross section. The uncertainty in the center-of-mass C307800100018 energy comes from a combination of the uncertainty in C307800100019 the beam energy resolution and the energy loss C307800100020 through the target. The beam resolution from the 5U C307800100021 has an uncertainty of 1-2 keV and the energy loss C307800100022 through the targets ranged between 20 and 60 keV. C307800100023 HISTORY (20250825C) BP C307800100024 ENDBIB 22 0 C307800100025 NOCOMMON 0 0 C307800100026 ENDSUBENT 25 0 C307800199999 SUBENT C3078002 20250825 20260228 C307800200001 BIB 6 32 C307800200002 REACTION (42-MO-94(P,G)43-TC-95,,SIG) C307800200003 DETECTOR (NAICR) The targets were placed in the center of the C307800200004 high efficiency total absorption spectrometer C307800200005 (HECTOR). HECTOR is composed of 16 NaI(Tl) segments C307800200006 each read by two photomultiplier tubes. These C307800200007 segments are arranged to cover nearly the entirety of C307800200008 the 4pi solid angle. C307800200009 SAMPLE (42-MO-94,ENR=0.9899) The 94Mo target, 588(66) C307800200010 microg/cm2 thick with 98.99% enrichment, was made by C307800200011 evaporation onto a gold backing. The gold backing, 96 C307800200012 mg/cm2, was used to stop the beam at the target C307800200013 location to reduce the background contaminants from C307800200014 beam straggling, in particular fluorine that may be C307800200015 present in the beam-pipe components. The thickness of C307800200016 the target was verified using x-ray fluorescence. C307800200017 METHOD The cross section was measured using the C307800200018 gamma-summing technique. When the 95Tc that was C307800200019 produced in the reaction deexcites to the ground C307800200020 state, a cascade of gamma rays is emitted. In the C307800200021 gamma-summing technique all of the gamma rays emitted C307800200022 in the cascade are summed up to give the total amount C307800200023 of energy detected during that event. C307800200024 ERR-ANALYS (ERR-T) Total uncertainties. C307800200025 (ERR-S,,10.) Statistical uncertainty. C307800200026 (ERR-1) The number of beam particles. C307800200027 (ERR-2) Dead time. C307800200028 (ERR-3,5.,20.) The relative uncertainty of the C307800200029 summing efficiency was around 5% for the standard C307800200030 analysis runs and around 20% for the runs analyzed C307800200031 using the filter. C307800200032 (ERR-4) Target thickness. C307800200033 STATUS (TABLE,,R.Kelmar+,J,PR/C,109,035805,2024) Table - I C307800200034 ENDBIB 32 0 C307800200035 COMMON 3 3 C307800200036 ERR-1 ERR-2 ERR-4 C307800200037 PER-CENT PER-CENT PER-CENT C307800200038 5.0 1.0 11.0 C307800200039 ENDCOMMON 3 0 C307800200040 DATA 4 76 C307800200041 EN-CM EN-RSL DATA ERR-T C307800200042 MEV MEV MICRO-B MICRO-B C307800200043 1.501 0.025 0.124 0.026 C307800200044 1.557 0.024 0.223 0.046 C307800200045 1.606 0.024 0.331 0.068 C307800200046 1.654 0.024 0.501 0.104 C307800200047 1.704 0.023 0.88 0.18 C307800200048 1.753 0.023 1.44 0.3 C307800200049 1.781 0.023 1.43 0.3 C307800200050 1.804 0.023 1.15 0.24 C307800200051 1.821 0.023 2.4 0.5 C307800200052 1.838 0.023 2.75 0.56 C307800200053 1.851 0.022 3.22 0.65 C307800200054 1.861 0.022 3.76 0.79 C307800200055 1.869 0.022 5.2 1. C307800200056 1.881 0.022 5.3 1.1 C307800200057 1.891 0.022 6.4 1.3 C307800200058 1.900 0.022 7.5 1.4 C307800200059 1.911 0.022 8.2 1.5 C307800200060 1.918 0.022 7.6 1.3 C307800200061 1.931 0.022 8.2 1.4 C307800200062 1.942 0.022 9.7 1.7 C307800200063 1.951 0.022 9. 1.6 C307800200064 1.960 0.022 10. 1.8 C307800200065 1.966 0.022 10.5 1.8 C307800200066 1.970 0.022 11.7 2.1 C307800200067 1.982 0.022 9.83 1.8 C307800200068 1.991 0.022 10.9 1.9 C307800200069 2.001 0.022 11.2 2. C307800200070 2.018 0.022 13.9 2.5 C307800200071 2.045 0.021 10.4 1.7 C307800200072 2.070 0.021 11.5 1.9 C307800200073 2.097 0.021 13. 2.2 C307800200074 2.099 0.021 12.6 2. C307800200075 2.124 0.021 16.8 2.9 C307800200076 2.145 0.021 21.2 3.7 C307800200077 2.150 0.021 20.9 3.7 C307800200078 2.180 0.021 25.2 4.4 C307800200079 2.204 0.02 25.7 4.8 C307800200080 2.205 0.02 24.2 4.3 C307800200081 2.244 0.02 25.3 4.6 C307800200082 2.293 0.02 36.3 6.4 C307800200083 2.309 0.02 33.6 5.8 C307800200084 2.343 0.02 44.6 8.1 C307800200085 2.393 0.02 51.3 9.4 C307800200086 2.442 0.019 73. 14. C307800200087 2.490 0.019 83. 16. C307800200088 2.539 0.019 101. 20. C307800200089 2.589 0.019 115. 21. C307800200090 2.638 0.018 134. 17. C307800200091 2.687 0.018 148. 19. C307800200092 2.735 0.018 191. 24. C307800200093 2.786 0.018 213. 27. C307800200094 2.831 0.018 250. 32. C307800200095 2.885 0.017 340. 44. C307800200096 2.935 0.017 369. 48. C307800200097 2.983 0.017 419. 54. C307800200098 3.031 0.017 432. 56. C307800200099 3.082 0.017 523. 68. C307800200100 3.133 0.016 584. 76. C307800200101 3.181 0.016 630. 82. C307800200102 3.229 0.016 687. 89. C307800200103 3.279 0.016 797. 103. C307800200104 3.329 0.016 889. 115. C307800200105 3.377 0.016 1010. 130. C307800200106 3.428 0.016 995. 127. C307800200107 3.479 0.015 1180. 152. C307800200108 3.496 0.015 1170. 151. C307800200109 3.548 0.015 1380. 178. C307800200110 3.647 0.015 1630. 211. C307800200111 3.747 0.015 1950. 253. C307800200112 3.818 0.015 2320. 301. C307800200113 3.946 0.014 2750. 357. C307800200114 3.948 0.014 2780. 364. C307800200115 4.044 0.014 3240. 426. C307800200116 4.143 0.014 3600. 469. C307800200117 4.241 0.014 4450. 584. C307800200118 4.343 0.014 4190. 547. C307800200119 ENDDATA 78 0 C307800200120 ENDSUBENT 119 0 C307800299999 SUBENT C3078003 20250825 20260228 C307800300001 BIB 3 12 C307800300002 REACTION (42-MO-94(P,G)43-TC-95,,SGV) C307800300003 ERR-ANALYS (DATA-ERR) The uncertainty of the reaction rate was C307800300004 obtained by performing a Monte Carlo technique. The C307800300005 cross-section values were randomly sampled from a C307800300006 Gaussian distribution with the mean and standard C307800300007 deviation from the measured point and then the C307800300008 integral was computed. This process was repeated 100 C307800300009 000 times to obtain a probability distribution for C307800300010 the true value of the reaction rate at each C307800300011 temperature. C307800300012 STATUS (DEP,C3078002) C307800300013 (TABLE,,R.Kelmar+,J,PR/C,109,035805,2024) Table - II C307800300014 ENDBIB 12 0 C307800300015 NOCOMMON 0 0 C307800300016 DATA 3 9 C307800300017 KT DATA DATA-ERR C307800300018 K9 CM3/S/MOL CM3/S/MOL C307800300019 1.5 0.109 0.015 C307800300020 1.6 0.237 0.028 C307800300021 1.7 0.477 0.047 C307800300022 1.8 0.908 0.076 C307800300023 1.9 1.643 0.12 C307800300024 2. 2.85 0.17 C307800300025 2.5 26.6 0.99 C307800300026 3. 125.7 5.7 C307800300027 3.5 330. 37. C307800300028 ENDDATA 11 0 C307800300029 ENDSUBENT 28 0 C307800399999 ENDENTRY 3 0 C307899999999