ENTRY M0613 20160202 M081M061300000001 SUBENT M0613001 20160202 M081M061300100001 BIB 14 32 M061300100002 TITLE 18O(gamma,pn + gamma,np) cross section. M061300100003 AUTHOR (K.G.Mcneill,J.W.Jury,M.N.Thompson,B.L.Berman, M061300100004 R.E.Pywell) M061300100005 INSTITUTE (1CANTOR,1CANSAS,1USAGWU,3AULAML) M061300100006 REFERENCE (J,PR/C,43,489,1991) M061300100007 FACILITY (LINAC,1USALRL) M061300100008 SAMPLE Water sample, 96.6 g of (H-2)18O. M061300100009 INC-SOURCE (QMPH) Quasimonoenergetical photons from positron M061300100010 annihilation in flight. M061300100011 METHOD (ACTIV) 6.13 MeV gamma rays from 16N (T-1/2 = 7.2 M061300100012 sec) were detected. M061300100013 DETECTOR (NAICR) M061300100014 ANALYSIS Direct measurements. M061300100015 ERR-ANALYS (DATA-ERR) No description of the error source. M061300100016 CORRECTION Corrections of two kinds have been done: M061300100017 - for small 16O and 17O contamination using the M061300100018 independent measurements and correspondent M061300100019 subtraction procedures; M061300100020 - for 18O(gamma,p) reaction contribution because M061300100021 following process: 18O -> 17N ->b-decay -> 17O -> N M061300100022 -> (n,gamma), 6.9 MeV, t-1/2 = 4 sec - using M061300100023 calculation of Zubanov (private communication). M061300100024 COMMENT Measurement has been made of the 18O(gamma,pn + np) M061300100025 cross section. The cross section rises to a maximum M061300100026 of 1.2 mb at 27.5 MeV, approximately one-tenth of the M061300100027 total (gamma,n) cross section there. The integrated M061300100028 cross section is correspondingly small (11.8 MeV*mb M061300100029 to 43 MeV). M061300100030 HISTORY (20010112C) Data were compiled the Russia MSU SINP M061300100031 CDFE by V.Varlamov. M061300100032 (20160202A) Corrected by V.Varlamov: REACTION, M061300100033 ERR-ANALYS, lowercase. M061300100034 ENDBIB 32 0 M061300100035 NOCOMMON 0 0 M061300100036 ENDSUBENT 35 0 M061300199999 SUBENT M0613002 20160202 M081M061300200001 BIB 4 5 M061300200002 REACTION (8-O-18(G,X)7-N-16,,SIG) M061300200003 DECAY-DATA (7-N-16,7.2SEC,DG,6130.,0.68) M061300200004 STATUS (CURVE) Data from Fig. 1 of PR/C,43,489,1991. M061300200005 HISTORY (20160202A) Corrected by V.Varlamov: DECAY-DATA, M061300200006 STATUS, SF3 = N + P -> X in REACTION. M061300200007 ENDBIB 5 0 M061300200008 NOCOMMON 0 0 M061300200009 DATA 3 91 M061300200010 EN DATA DATA-ERR M061300200011 MEV MB MB M061300200012 15. .109 .075 M061300200013 15.25 .004 .076 M061300200014 15.5 .065 .065 M061300200015 15.75 .033 .05 M061300200016 16. .041 .044 M061300200017 16.25 .092 .065 M061300200018 16.5 -0.007 .068 M061300200019 16.75 -0.041 .044 M061300200020 17. .089 .061 M061300200021 17.25 -0.031 .083 M061300200022 17.5 .044 .035 M061300200023 17.75 -0.004 .046 M061300200024 18. .002 .046 M061300200025 18.25 .065 .042 M061300200026 18.5 .012 .044 M061300200027 18.7 -0.004 .044 M061300200028 18.75 .061 .055 M061300200029 19. .044 .043 M061300200030 19.2 .033 .043 M061300200031 19.4 -0.033 .043 M061300200032 19.6 0.0 .024 M061300200033 19.75 .038 .032 M061300200034 19.85 .063 .039 M061300200035 20. .022 .026 M061300200036 20.15 .033 .033 M061300200037 20.3 .098 .033 M061300200038 20.45 .057 .024 M061300200039 20.6 .048 .024 M061300200040 20.75 .048 .024 M061300200041 21. .034 .024 M061300200042 21.25 .072 .026 M061300200043 21.5 .129 .026 M061300200044 21.75 .142 .026 M061300200045 22. .185 .026 M061300200046 22.33 .196 .03 M061300200047 22.66 .173 .02 M061300200048 23. .196 .03 M061300200049 23.143 .229 .03 M061300200050 23.286 .242 .03 M061300200051 23.429 .26 .03 M061300200052 23.572 .286 .033 M061300200053 23.715 .305 .034 M061300200054 23.858 .327 .044 M061300200055 24. .393 .044 M061300200056 24.167 .371 .044 M061300200057 24.333 .441 .065 M061300200058 24.5 .5 .034 M061300200059 24.665 .57 .066 M061300200060 24.83 .447 .039 M061300200061 25. .393 .091 M061300200062 25.25 .655 .045 M061300200063 25.5 .646 .045 M061300200064 25.75 .687 .055 M061300200065 26. .764 .054 M061300200066 26.2 .851 .072 M061300200067 26.4 .99 .059 M061300200068 26.6 .819 .055 M061300200069 26.8 .953 .053 M061300200070 27. .96 .055 M061300200071 27.25 1.091 .056 M061300200072 27.5 1.141 .063 M061300200073 27.75 1.084 .059 M061300200074 28. .982 .056 M061300200075 28.25 .98 .063 M061300200076 28.5 1.025 .037 M061300200077 28.75 1.023 .033 M061300200078 29.33 1.03 .061 M061300200079 29.66 .879 .033 M061300200080 30.33 .877 .033 M061300200081 30.66 .807 .035 M061300200082 31. .883 .035 M061300200083 31.5 .799 .037 M061300200084 32. .72 .034 M061300200085 32.5 .668 .033 M061300200086 33. .615 .033 M061300200087 33.5 .644 .038 M061300200088 34. .589 .033 M061300200089 34.5 .465 .033 M061300200090 35. .515 .031 M061300200091 35.5 .525 .033 M061300200092 36. .43 .039 M061300200093 36.5 .469 .033 M061300200094 37. .362 .033 M061300200095 37.5 .375 .035 M061300200096 38. .412 .037 M061300200097 38.5 .338 .033 M061300200098 39.5 .32 .033 M061300200099 40.5 .249 .033 M061300200100 41.5 .225 .033 M061300200101 42.4 .244 .033 M061300200102 43.5 .262 .04 M061300200103 ENDDATA 93 0 M061300200104 ENDSUBENT 103 0 M061300299999 SUBENT M0613003 20160202 M081M061300300001 BIB 3 5 M061300300002 REACTION (8-O-18(G,X)7-N-16,,INT) M061300300003 STATUS (DEP,M0613002) Reaction cross section. M061300300004 (TABLE) Data from Tab. 1 of PR/C,43,489,1991. M061300300005 HISTORY (20160202A) Corrected by V.Varlamov: STATUS, M061300300006 SF3 = N + P -> X in REACTION. M061300300007 ENDBIB 5 0 M061300300008 NOCOMMON 0 0 M061300300009 DATA 3 2 M061300300010 EN-MAX DATA DATA-ERR M061300300011 MEV MB*MEV MB*MEV M061300300012 30. 5.6 0.2 M061300300013 43. 11.8 0.4 M061300300014 ENDDATA 4 0 M061300300015 ENDSUBENT 14 0 M061300399999 ENDENTRY 3 0 M061399999999