ENTRY G0053 20170606 G038G005300000001 SUBENT G0053001 20170606 G038G005300100001 BIB 13 79 G005300100002 TITLE Average cross section measurement for 162Er(g,n) G005300100003 reaction compared with theoretical calculations using G005300100004 TALYS G005300100005 AUTHOR (E.Vagena, S.Stoulos) G005300100006 INSTITUTE (2GRCARU) G005300100007 REFERENCE (J,NP/A,957,259,2017) G005300100008 FACILITY (LINAC,2GRCGRC) ELEKTA SL medical linac of the G005300100009 University Hospital in Larisa (Thessaly) G005300100010 INC-SOURCE (BRST) E0=14 MeV G005300100011 INC-SPECT Group-wise photon spectrum obtained by GEANT4 with a G005300100012 detailed geometry of the ELEKTA SL medical G005300100013 accelerator received from Eleni Vagena on 2016-12-06. G005300100014 (E in MeV, phi in E+8photons/cm2/sec). G005300100015 This is a typical photon spectrum calculated for this G005300100016 accelerator, and only shape is valid for this Er G005300100017 irradiation experiment. G005300100018 The phi values at 0.9 and 1.1 MeV are for photons G005300100019 between 0.85 to 1 MeV and 1 MeV to 1.15 MeV, G005300100020 respectively. G005300100021 ----------------------------------------------------- G005300100022 E phi E phi E phi E phi G005300100023 ----------------------------------------------------- G005300100024 0.0 72 3.6 985 7.1 438 10.6 148 G005300100025 0.1 532 3.7 1007 7.2 433 10.7 120 G005300100026 0.2 1621 3.8 949 7.3 380 10.8 143 G005300100027 0.3 2385 3.9 998 7.4 365 10.9 110 G005300100028 0.4 2639 4.0 926 7.5 418 11.0 130 G005300100029 0.5 2772 4.1 899 7.6 375 11.1 131 G005300100030 0.6 2685 4.2 857 7.7 369 11.2 113 G005300100031 0.7 2659 4.3 845 7.8 383 11.3 109 G005300100032 0.8 2618 4.4 879 7.9 410 11.4 101 G005300100033 0.9 2507 4.5 805 8.0 320 11.5 86 G005300100034 1.1 2383 4.6 747 8.1 290 11.6 71 G005300100035 1.2 2371 4.7 771 8.2 294 11.7 91 G005300100036 1.3 2282 4.8 725 8.3 321 11.8 73 G005300100037 1.4 2124 4.9 716 8.4 277 11.9 89 G005300100038 1.5 2155 5.0 682 8.5 311 12.0 66 G005300100039 1.6 2072 5.1 653 8.6 296 12.1 60 G005300100040 1.7 1962 5.2 648 8.7 289 12.2 72 G005300100041 1.8 1855 5.3 675 8.8 265 12.3 58 G005300100042 1.9 1816 5.4 612 8.9 280 12.4 43 G005300100043 2.0 1691 5.5 595 9.0 266 12.5 44 G005300100044 2.1 1743 5.6 613 9.1 273 12.6 37 G005300100045 2.2 1620 5.7 561 9.2 229 12.7 36 G005300100046 2.3 1630 5.8 604 9.3 230 12.8 32 G005300100047 2.4 1567 5.9 581 9.4 233 12.9 23 G005300100048 2.5 1432 6.0 518 9.5 257 13.0 23 G005300100049 2.6 1466 6.1 572 9.6 227 13.1 24 G005300100050 2.7 1425 6.2 492 9.7 201 13.2 9 G005300100051 2.8 1400 6.3 498 9.8 196 13.3 9 G005300100052 2.9 1303 6.4 500 9.9 204 13.4 14 G005300100053 3.0 1257 6.5 501 10.0 190 13.5 8 G005300100054 3.1 1273 6.6 478 10.1 190 13.6 3 G005300100055 3.2 1229 6.7 451 10.2 191 13.7 3 G005300100056 3.3 1099 6.8 467 10.3 164 13.8 3 G005300100057 3.4 1127 6.9 457 10.4 153 13.9 2 G005300100058 3.5 1152 7.0 401 10.5 160 14.0 2 G005300100059 ----------------------------------------------------- G005300100060 SAMPLE Er piece. 2.5 cm x 2.5 cm (area) x 0.062 cm (thick), G005300100061 1.4325 g, 99.9% purity G005300100062 METHOD (ACTIV) Irradiated for 1.11 hr and cooled for 2.4 hr G005300100063 ANALYSIS Photon flux integrated from the threshold to the G005300100064 end-point energy was obtained from the activities of G005300100065 the (g,n) reaction products of seven elements with G005300100066 threshold energy from 8.02 to 12.22 MeV (Au, As, Ir, G005300100067 Mn, Ni, Se, Sn). G005300100068 These foils were irradiated with Er to determine the G005300100069 absolute flux assuming linear shape of the photon G005300100070 flux up to ~12 MeV. G005300100071 It results to the 1.24+/-0.21E+08 photons/cm2/sec for G005300100072 the energy range from 9.2 MeV (162Er(g,n) threshold) G005300100073 to 14 MeV. G005300100074 DETECTOR (HPGE) 1.8 keV resolution in the 1332 keV gamma-line G005300100075 and efficiency 42%. The efficiencies various G005300100076 geometries of the material were calculated by GEANT4. G005300100077 STATUS (TABLE) Table 5 of Nucl.Phys.A957(2017)259 G005300100078 (APRVD) Approved by Eleni Vagena (2016-12-07) G005300100079 HISTORY (20161203C) On G005300100080 (20170606U) On. Minor correction in INC-SPECT. G005300100081 ENDBIB 79 0 G005300100082 NOCOMMON 0 0 G005300100083 ENDSUBENT 82 0 G005300199999 SUBENT G0053002 20161203 G036G005300200001 BIB 3 3 G005300200002 REACTION (68-ER-162(G,N)68-ER-161,,SIG,,BRA) G005300200003 DECAY-DATA (68-ER-161,3.21HR,DG,826.6,0.64) G005300200004 ERR-ANALYS (DATA-ERR) Mainly from photon flux determination G005300200005 ENDBIB 3 0 G005300200006 NOCOMMON 0 0 G005300200007 DATA 3 1 G005300200008 EN-MAX DATA DATA-ERR G005300200009 MEV MB MB G005300200010 14. 87. 14. G005300200011 ENDDATA 3 0 G005300200012 ENDSUBENT 11 0 G005300299999 ENDENTRY 2 0 G005399999999