ENTRY M0320 20230405 M032000000001 SUBENT M0320001 20230405 20231011 M032000100001 BIB 16 63 M032000100002 TITLE Cross sections for photoneutron emission induced M032000100003 by lithium gamma rays. M032000100004 AUTHOR (W.H.Hartley,W.E.Stephens,E.J.Winhold) M032000100005 REFERENCE (J,PR,104,178,1956) M032000100006 INSTITUTE (1USAPEN) M032000100007 INC-SOURCE (MPH=(3-LI-7(P,G)4-BE-8)) M032000100008 INC-SPECT Lithium proton-capture gamma rays were obtained from M032000100009 of narrow line at 17.6 MeV and a broad line at 14.8 M032000100010 MeV. All gamma rays were associated with 441 keV M032000100011 resonance. The relative intensity of 17.6 and 14.8 M032000100012 MeV components was about 1.7 : 1. M032000100013 FACILITY (VDG,1USAPEN) With energy of protons 0.48 MeV. M032000100014 METHOD (EXTB) M032000100015 SAMPLE High-purity powder samples of thirteen elements (of M032000100016 atomic numbers ranging from 26 to 83) were M032000100017 irradiated in thin aluminum cylindrical containers M032000100018 which fit over the proton beam tube and thus subtend M032000100019 almost the total solid angle at the lithium target. M032000100020 DETECTOR (NAICR) A cylindrical crystal 1.5 inch by 1.5 inch M032000100021 was used to monitor the gamma rays intensity. (BF3). M032000100022 Two groups of four counters (1 inch diameter by 4.5 M032000100023 inch active length) were used. One group (Group A) M032000100024 of 4 counters consisted of two counters above and M032000100025 two counters below the sample. The second group M032000100026 (Group B) of 4 counters formed a square array above M032000100027 the sample at 90 degr. to the protons beam. The M032000100028 counters of this group were placed closer to the M032000100029 target. M032000100030 MONITOR To determine the absolute energy of the neutron M032000100031 counters Ra-Be neutrons source were used, calibrated M032000100032 by the National Bureau of Standards. Its absolute M032000100033 strength was estimated to be 5%. M032000100034 ADD-RES (COMP) With data of early experimental measurements. M032000100035 The efficiency of detection systems was measured for M032000100036 different energy of neutrons. M032000100037 ANALYSIS The cross sections for photoneutron production were M032000100038 calculated from neutron yields, which were measured M032000100039 at all energies of gamma rays. The efficiency for M032000100040 the Group A of counters does not depend on neutrons M032000100041 energy. The efficiency for the Group B of counters M032000100042 depends strongly on the neutrons energy (near to M032000100043 1/E). M032000100044 COMMENT The energies of lithium gamma line are presented as M032000100045 high and low values of limit of gamma quanta energy M032000100046 Eg-min and Eg-max, respectively. M032000100047 ERR-ANALYS (DATA-ERR,,10.) The relative cross-section values for M032000100048 the different elements are known to better than 10%. M032000100049 1(ERR-T) The uncertainty in absolute value of each M032000100050 cross section obtained with the Group A neutron M032000100051 counters to be 15%, determined chiefly by the M032000100052 uncertainties in the neutron and photon detector M032000100053 efficiencies. M032000100054 2Since the results for Group B depend on the M032000100055 assumptions made about the photoneutron energy M032000100056 spectra, authors believe the Group A values to be M032000100057 more accurate than those obtained with Group B. M032000100058 HISTORY (19900331C) M032000100059 (19910202A) Corrected by V.Varlamov, V.Mclane. M032000100060 (20180216A) Corrected by SD and VV:Updated to new M032000100061 date formats, lower case, STATUS, ERR-ANALYS update, M032000100062 PART-DET deleted, DATA were added. M032000100063 (20230405U) Corrected by V. Varlamov: PART-SET in M032000100064 HISTORY line corrected to PART-DET M032000100065 ENDBIB 63 0 M032000100066 COMMON 1 3 M032000100067 EN-RSL M032000100068 MEV M032000100069 0.441 M032000100070 ENDCOMMON 3 0 M032000100071 ENDSUBENT 70 0 M032000199999 SUBENT M0320002 20180216 M095M032000200001 BIB 2 6 M032000200002 REACTION 1(26-FE-0(G,X)0-NN-1,,SIG,,SPA) M032000200003 Neutron detection by the Group A neutron counter M032000200004 2(26-FE-0(G,X)0-NN-1,,SIG,,SPA) M032000200005 Neutron detection by the Group B neutron counter M032000200006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000200007 from REACTION, REACTION (2) and DATA were added. M032000200008 ENDBIB 6 0 M032000200009 NOCOMMON 0 0 M032000200010 DATA 5 1 M032000200011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000200012 MEV MEV MB PER-CENT MB M032000200013 14.8 17.6 38. 15. 33. M032000200014 ENDDATA 3 0 M032000200015 ENDSUBENT 14 0 M032000299999 SUBENT M0320003 20180216 M095M032000300001 BIB 2 6 M032000300002 REACTION 1(27-CO-59(G,X)0-NN-1,,SIG,,SPA) M032000300003 Neutron detection by the Group A neutron counter M032000300004 2(27-CO-59(G,X)0-NN-1,,SIG,,SPA) M032000300005 Neutron detection by the Group B neutron counter M032000300006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000300007 from REACTION, REACTION (2) and DATA were added. M032000300008 ENDBIB 6 0 M032000300009 NOCOMMON 0 0 M032000300010 DATA 5 1 M032000300011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000300012 MEV MEV MB PER-CENT MB M032000300013 14.8 17.6 49. 15. 49. M032000300014 ENDDATA 3 0 M032000300015 ENDSUBENT 14 0 M032000399999 SUBENT M0320004 20180216 M095M032000400001 BIB 2 6 M032000400002 REACTION 1(28-NI-0(G,X)0-NN-1,,SIG,,SPA) M032000400003 Neutron detection by the Group A neutron counter M032000400004 2(28-NI-0(G,X)0-NN-1,,SIG,,SPA) M032000400005 Neutron detection by the Group B neutron counter M032000400006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000400007 from REACTION, REACTION (2) and DATA were added. M032000400008 ENDBIB 6 0 M032000400009 NOCOMMON 0 0 M032000400010 DATA 5 1 M032000400011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000400012 MEV MEV MB PER-CENT MB M032000400013 14.8 17.6 28. 15. 25. M032000400014 ENDDATA 3 0 M032000400015 ENDSUBENT 14 0 M032000499999 SUBENT M0320005 20180216 M095M032000500001 BIB 2 6 M032000500002 REACTION 1(29-CU-0(G,X)0-NN-1,,SIG,,SPA) M032000500003 Neutron detection by the Group A neutron counter M032000500004 2(29-CU-0(G,X)0-NN-1,,SIG,,SPA) M032000500005 Neutron detection by the Group B neutron counter M032000500006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000500007 from REACTION, REACTION (2) and DATA were added. M032000500008 ENDBIB 6 0 M032000500009 NOCOMMON 0 0 M032000500010 DATA 5 1 M032000500011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000500012 MEV MEV MB PER-CENT MB M032000500013 14.8 17.6 64. 15. 61. M032000500014 ENDDATA 3 0 M032000500015 ENDSUBENT 14 0 M032000599999 SUBENT M0320006 20180216 M095M032000600001 BIB 2 6 M032000600002 REACTION 1(30-ZN-0(G,X)0-NN-1,,SIG,,SPA) M032000600003 Neutron detection by the Group A neutron counter M032000600004 2(30-ZN-0(G,X)0-NN-1,,SIG,,SPA) M032000600005 Neutron detection by the Group B neutron counter M032000600006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000600007 from REACTION, REACTION (2) and DATA were added. M032000600008 ENDBIB 6 0 M032000600009 NOCOMMON 0 0 M032000600010 DATA 5 1 M032000600011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000600012 MEV MEV MB PER-CENT MB M032000600013 14.8 17.6 48. 15. 45. M032000600014 ENDDATA 3 0 M032000600015 ENDSUBENT 14 0 M032000699999 SUBENT M0320007 20180216 M095M032000700001 BIB 2 6 M032000700002 REACTION 1(47-AG-0(G,X)0-NN-1,,SIG,,SPA) M032000700003 Neutron detection by the Group A neutron counter M032000700004 2(47-AG-0(G,X)0-NN-1,,SIG,,SPA) M032000700005 Neutron detection by the Group B neutron counter M032000700006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000700007 from REACTION, REACTION (2) and DATA were added. M032000700008 ENDBIB 6 0 M032000700009 NOCOMMON 0 0 M032000700010 DATA 5 1 M032000700011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000700012 MEV MEV MB PER-CENT MB M032000700013 14.8 17.6 175. 15. 170. M032000700014 ENDDATA 3 0 M032000700015 ENDSUBENT 14 0 M032000799999 SUBENT M0320008 20180216 M095M032000800001 BIB 2 6 M032000800002 REACTION 1(50-SN-0(G,X)0-NN-1,,SIG,,SPA) M032000800003 Neutron detection by the Group A neutron counter M032000800004 2(50-SN-0(G,X)0-NN-1,,SIG,,SPA) M032000800005 Neutron detection by the Group B neutron counter M032000800006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000800007 from REACTION, REACTION (2) and DATA were added. M032000800008 ENDBIB 6 0 M032000800009 NOCOMMON 0 0 M032000800010 DATA 5 1 M032000800011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000800012 MEV MEV MB PER-CENT MB M032000800013 14.8 17.6 200. 15. 190. M032000800014 ENDDATA 3 0 M032000800015 ENDSUBENT 14 0 M032000899999 SUBENT M0320009 20180216 M095M032000900001 BIB 2 6 M032000900002 REACTION 1(73-TA-0(G,X)0-NN-1,,SIG,,SPA) M032000900003 Neutron detection by the Group A neutron counter M032000900004 2(73-TA-0(G,X)0-NN-1,,SIG,,SPA) M032000900005 Neutron detection by the Group B neutron counter M032000900006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032000900007 from REACTION, REACTION (2) and DATA were added. M032000900008 ENDBIB 6 0 M032000900009 NOCOMMON 0 0 M032000900010 DATA 5 1 M032000900011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032000900012 MEV MEV MB PER-CENT MB M032000900013 14.8 17.6 355. 15. 360. M032000900014 ENDDATA 3 0 M032000900015 ENDSUBENT 14 0 M032000999999 SUBENT M0320010 20180216 M095M032001000001 BIB 2 6 M032001000002 REACTION 1(74-W-0(G,X)0-NN-1,,SIG,,SPA) M032001000003 Neutron detection by the Group A neutron counter M032001000004 2(74-W-0(G,X)0-NN-1,,SIG,,SPA) M032001000005 Neutron detection by the Group B neutron counter M032001000006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032001000007 from REACTION, REACTION (2) and DATA were added. M032001000008 ENDBIB 6 0 M032001000009 NOCOMMON 0 0 M032001000010 DATA 5 1 M032001000011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032001000012 MEV MEV MB PER-CENT MB M032001000013 14.8 17.6 365. 15. 355. M032001000014 ENDDATA 3 0 M032001000015 ENDSUBENT 14 0 M032001099999 SUBENT M0320011 20180216 M095M032001100001 BIB 2 6 M032001100002 REACTION 1(79-AU-197(G,X)0-NN-1,,SIG,,SPA) M032001100003 Neutron detection by the Group A neutron counter M032001100004 2(79-AU-197(G,X)0-NN-1,,SIG,,SPA) M032001100005 Neutron detection by the Group B neutron counter M032001100006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032001100007 from REACTION, REACTION (2) and DATA were added. M032001100008 ENDBIB 6 0 M032001100009 NOCOMMON 0 0 M032001100010 DATA 5 1 M032001100011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032001100012 MEV MEV MB PER-CENT MB M032001100013 14.8 17.6 330. 15. 295. M032001100014 ENDDATA 3 0 M032001100015 ENDSUBENT 14 0 M032001199999 SUBENT M0320012 20180216 M095M032001200001 BIB 2 6 M032001200002 REACTION 1(80-HG-0(G,X)0-NN-1,,SIG,,SPA) M032001200003 Neutron detection by the Group A neutron counter M032001200004 2(80-HG-0(G,X)0-NN-1,,SIG,,SPA) M032001200005 Neutron detection by the Group B neutron counter M032001200006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032001200007 from REACTION, REACTION (2) and DATA were added. M032001200008 ENDBIB 6 0 M032001200009 NOCOMMON 0 0 M032001200010 DATA 5 1 M032001200011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032001200012 MEV MEV MB PER-CENT MB M032001200013 14.8 17.6 365. 15. 340. M032001200014 ENDDATA 3 0 M032001200015 ENDSUBENT 14 0 M032001299999 SUBENT M0320013 20180216 M095M032001300001 BIB 2 6 M032001300002 REACTION 1(82-PB-0(G,X)0-NN-1,,SIG,,SPA) M032001300003 Neutron detection by the Group A neutron counter M032001300004 2(82-PB-0(G,X)0-NN-1,,SIG,,SPA) M032001300005 Neutron detection by the Group B neutron counter M032001300006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032001300007 from REACTION, REACTION (2) and DATA were added. M032001300008 ENDBIB 6 0 M032001300009 NOCOMMON 0 0 M032001300010 DATA 5 1 M032001300011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032001300012 MEV MEV MB PER-CENT MB M032001300013 14.8 17.6 310. 15. 295. M032001300014 ENDDATA 3 0 M032001300015 ENDSUBENT 14 0 M032001399999 SUBENT M0320014 20180216 M095M032001400001 BIB 2 6 M032001400002 REACTION 1(83-BI-209(G,X)0-NN-1,,SIG,,SPA) M032001400003 Neutron detection by the Group A neutron counter M032001400004 2(83-BI-209(G,X)0-NN-1,,SIG,,SPA) M032001400005 Neutron detection by the Group B neutron counter M032001400006 HISTORY (20180216A) Corrected by SD and VV: SF9 = EXP deleted M032001400007 from REACTION, REACTION (2) and DATA were added. M032001400008 ENDBIB 6 0 M032001400009 NOCOMMON 0 0 M032001400010 DATA 5 1 M032001400011 EN-MIN EN-MAX DATA 1DATA-ERR 1DATA 2 M032001400012 MEV MEV MB PER-CENT MB M032001400013 14.8 17.6 305. 15. 280. M032001400014 ENDDATA 3 0 M032001400015 ENDSUBENT 14 0 M032001499999 ENDENTRY 14 0 M032099999999