ENTRY 20527 20200921 22912052700000001 SUBENT 20527001 20200921 22912052700100001 BIB 16 39 2052700100002 TITLE Some activation cross-sections for 14.7 MeV neutrons 2052700100003 on nickel 2052700100004 AUTHOR (J.D.Hemingway) 2052700100005 REFERENCE (J,JNE,27,241,1973) 2052700100006 INSTITUTE (2UK DUR) 2052700100007 FACILITY (CCW,2UK DUR) Cockcroft-Walton accelerator 2052700100008 INC-SOURCE (D-T) 2052700100009 INC-SPECT Neutron flux was monitored with a proton recoil 2052700100010 counter. 2052700100011 (EN-RSL-HW) Standard deviation 2052700100012 The mean neutron energy and its standard deviation 2052700100013 were estimated as 14.7 +- 0.2 MeV, when allowance is 2052700100014 made for the variation of neutron energy as a function2052700100015 of angle to the beam, and of the decrease in energy of2052700100016 the beam as it penetrates the target. 2052700100017 SAMPLE Nickel oxide, 0.7800+-0.0003 g. of Ni/g. of Ni-O, 2052700100018 in a Ni-O/Fe mixture irradiated in a cylindrical 2052700100019 polyethylene container. 2052700100020 METHOD (ACTIV) 2052700100021 After irradiation of NiO/Fe mixture, rapid clean 2052700100022 separation was performed by electromagnet. 2052700100023 DETECTOR (NAICR) 76 * 76 mm NaI crystal. 2052700100024 (GEMUC) Separated Fe was counted by G-M counter after 2052700100025 dissolving in a standard acid mixture. 2052700100026 MONITOR (26-FE-56(N,P)25-MN-56,,SIG) 2052700100027 MONIT-REF (21372001,J.D.Hemingway+,J,PRS/A,292,180,1966) 2052700100028 PART-DET (DG) 2052700100029 STATUS (TABLE) Abstract from J.Nucl.Energy 27(1973)241; 2052700100030 stat. error was taken from the table without number. 2052700100031 ERR-ANALYS (ERR-T) Total uncertainty 2052700100032 (ERR-S) Statistical error, less than 0.2% (except 2052700100033 Ni-60(n,p) for which it is less than 1 percent) is 2052700100034 included. 2052700100035 (ERR-SYS) Systematic error of 5.5% including 2052700100036 uncertainty in ref. cross section 2052700100037 HISTORY (19730615C) 2052700100038 (20200921A) SD:Updated to new date formats,lower case. 2052700100039 Corrections in all Subents. MINIT, ERR-SYS added. 2052700100040 EN-RSL -> EN-RSL-HW. 2052700100041 ENDBIB 39 0 2052700100042 COMMON 4 3 2052700100043 EN EN-RSL-HW MONIT ERR-SYS 2052700100044 MEV MEV MB PER-CENT 2052700100045 14.7 0.2 97.8 5.5 2052700100046 ENDCOMMON 3 0 2052700100047 ENDSUBENT 46 0 2052700199999 SUBENT 20527002 20200921 22912052700200001 BIB 3 5 2052700200002 REACTION (28-NI-58(N,2N)28-NI-57,,SIG) 2052700200003 COMMENT Ni(n,2n) could be separated from Ni(n,np) by means 2052700200004 of a second chemical separation of Co from Ni 10 days 2052700200005 after irradiation. 2052700200006 HISTORY (20200921U) SD: DATA-ERR -> ERR-T; ERR-S added. 2052700200007 ENDBIB 5 0 2052700200008 NOCOMMON 0 0 2052700200009 DATA 3 1 2052700200010 DATA ERR-T ERR-S 2052700200011 MB MB MB 2052700200012 32.6 2.7 0.9 2052700200013 ENDDATA 3 0 2052700200014 ENDSUBENT 13 0 2052700299999 SUBENT 20527003 20200921 22912052700300001 BIB 5 11 2052700300002 REACTION (28-NI-58(N,P)27-CO-58,,SIG) 2052700300003 Sum of metastable and ground states transition. 2052700300004 DECAY-DATA (27-CO-58-M,9.15HR) 2052700300005 CORRECTION A carrier free solution of Co-58 used for calibration 2052700300006 was found to contain a small quantity of Co-60. 2052700300007 Appropriate corrections were made. 2052700300008 COMMENT Co-58 was determined using the 811 keV photo-peak, and2052700300009 the system was calibrated for Co-58 by 4pi beta-gamma 2052700300010 coincidence counting. 2052700300011 HISTORY (20200921U) SD: DATA-ERR -> ERR-T; ERR-S added. 2052700300012 DECAY-DATA added. 2052700300013 ENDBIB 11 0 2052700300014 NOCOMMON 0 0 2052700300015 DATA 3 1 2052700300016 DATA ERR-T ERR-S 2052700300017 MB MB MB 2052700300018 349. 30. 11. 2052700300019 ENDDATA 3 0 2052700300020 ENDSUBENT 19 0 2052700399999 SUBENT 20527004 20200921 22912052700400001 BIB 3 9 2052700400002 REACTION (28-NI-58(N,X)27-CO-57,,SIG) 2052700400003 COMMENT The determination of the nickel reaction was done 2052700400004 via the daughter nucleus Co-57. 2052700400005 The determination of Co-57 was carried out using the 2052700400006 122 (+136) keV peak. 2052700400007 The system was calibrated for Co-57 by 4pi beta-gamma 2052700400008 coincidence counting. 2052700400009 HISTORY (20200921A) SD: SF3=N+P and D -> X in REACTION code. 2052700400010 DATA-ERR -> ERR-T; ERR-S added. 2052700400011 ENDBIB 9 0 2052700400012 NOCOMMON 0 0 2052700400013 DATA 3 1 2052700400014 DATA ERR-T ERR-S 2052700400015 MB MB MB 2052700400016 619. 49. 15. 2052700400017 ENDDATA 3 0 2052700400018 ENDSUBENT 17 0 2052700499999 SUBENT 20527005 20200921 22912052700500001 BIB 4 8 2052700500002 REACTION (28-NI-60(N,P)27-CO-60,,SIG) 2052700500003 Sum of metastable and ground states transition. 2052700500004 DECAY-DATA (27-CO-58-M,10.47MIN) 2052700500005 COMMENT Co-60 was counted using the sum peak at 2.50 MeV. 2052700500006 The system was calibrated for Co-60 by gamma-gamma 2052700500007 coincidence counting. 2052700500008 HISTORY (20200921U) SD: DATA-ERR -> ERR-T; ERR-S added. 2052700500009 DECAY-DATA added. 2052700500010 ENDBIB 8 0 2052700500011 NOCOMMON 0 0 2052700500012 DATA 3 1 2052700500013 DATA ERR-T ERR-S 2052700500014 MB MB MB 2052700500015 129. 16. 9. 2052700500016 ENDDATA 3 0 2052700500017 ENDSUBENT 16 0 2052700599999 ENDENTRY 5 0 2052799999999