ENTRY 23288 20191119 22832328800000001 SUBENT 23288001 20191119 22832328800100001 BIB 18 111 2328800100002 TITLE Measurement of the 477.6-keV gamma-ray production cross2328800100003 section following inelastic neutron scattering by 7Li. 2328800100004 REFERENCE (J,PR/C,93,024610,2016) Figs. only. 2328800100005 #doi:10.1103/PhysRevC.93.024610 2328800100006 (J,EPJ/CS,146,11018,2017) - final publ. of 7Li. 2328800100007 The 63,65Cu(n,n'gamma) data sets are still under 2328800100008 finalization, and will be compiled in another entry. 2328800100009 AUTHOR (M.Nyman, F.Belloni, D.Ichinkhorloo, E.Pirovano, 2328800100010 A.J.M.Plompen, C.Rouki) 2328800100011 INSTITUTE (2ZZZGEL) M.Nyman,F.Belloni,E.Pirovano,A.J.M.Plompen, 2328800100012 C.Rouki. 2328800100013 (2JPNHOK) D.Ichinkhorloo. 2328800100014 REL-REF (I,,L.C.Mihailescu+,J,NIM/A,531,375,2004) 2328800100015 GAINS spectrometer. 2328800100016 (I,,A.Plompen+,J,KPS,59,1581,2011) 2328800100017 (I,,C.Rouki+,J,NIM/A,672,82,2012) 2328800100018 Details of fis.chamber. 2328800100019 (I,,L.C.Mihailescu+,J,NIM/A,578,298,2007) 2328800100020 Data acquisition system details. 2328800100021 (D,21077002,J.M.Freeman+,J,PM,46,17,1955) 2328800100022 Below the other data sets above 0.8 MeV 2328800100023 (A,11130001,N.A.Bostrom+,R,WADC-TN-59-107,1959) 2328800100024 (unpublished, WADC-TN-59-10710, 1959). 2328800100025 (D,40680001,N.P.Glazkov,J,JNE/AB,18,656,1964) 2328800100026 (D,21147001,R.Batchelor+,J,NP,47,385,1963) 2328800100027 Lower. 2328800100028 (D,11153001,J.C.Hopkins+,J,NP/A,107,139,1968) Lower. 2328800100029 (D,20395001,H.H.Knitter+,C,68WASH,2,827,1968) 2328800100030 Lower. 2328800100031 (A,20534001,G.Presser+,J,NP/A,182,321,1972) 2328800100032 Above 1.2MeV agree. 2328800100033 (D,10641002,D.L.Smith,J,NSE,61,540,1976) 2328800100034 Slightly lower. 2328800100035 (D,10787002,D.K.Olsen+,J,NSE,74,219,1980) 2328800100036 Lower at En > 1.3 MeV 2328800100037 (D,10502001,J.K.Dickens+,J,NSE,62,515,1977) 2328800100038 Below the other data sets above 0.8 MeV. 2328800100039 Above 1.2MeV agree. 2328800100040 (A,10788001,G.L.Morgan+,R,ORNL-TM-6247,1978) 2328800100041 (unpublished) 2328800100042 (D,10914001,H.D.Knox,C,79KNOX,,783,1979) 2328800100043 Published at 1980. 2328800100044 (D,40340003,V.M.Besotosnyj+,R,YK-19,77,1975) Lower. 2328800100045 (D,11165002,J.Benveniste+,J,NP,38,300,1962) Higher. 2328800100046 (A,11023002,M.E.Battat,W,BATTAT,1962) 2328800100047 EXP-YEAR (2015) Two measurements at IRMM - 200-m and 100-m. 2328800100048 FACILITY (LINAC,2ZZZGEL) GELINA. 800-Hz repetition rate. 2328800100049 INC-SOURCE (PHOTO) Pulsed white neutron source. 2328800100050 METHOD (TOF) TOF for neutron energy determination. 2328800100051 Flight path : sample at 198.757(5) m and 99.67(5) m 2328800100052 from neutron source. Time resolution ~10nsec. 2328800100053 For 200-m flight path the neutron energy resolution - 2328800100054 1.4keV for En=1MeV, increasing to 44 keV for En=10 MeV.2328800100055 DETECTOR (HPGE) GAINS spectrometer consisted of 12 high-purity 2328800100056 Ge detectors (made by CANBERRA), mounted at 110, 125, 2328800100057 150 deg. with respect to the beam direction, four 2328800100058 detectors at each angle. 2328800100059 The data acquisition system uses Acquiris DC440 2328800100060 digitizers of 12-bit amplitude resolution and 2328800100061 440*10**6 samples/s sampling rate. 2328800100062 The absolute gamma-ray detection efficiency was 2328800100063 determined experimentally with a 152Eu point source, 2328800100064 then MCNP5 simulation was performed. 2328800100065 (FISCH) The U-235 fis. chamber contains 8 UF4 deposits 2328800100066 of 70 mm diameter, placed on 5 Al foils (20 microm 2328800100067 thickness). 2328800100068 SAMPLE Optical-quality lithium fluoride LiF disk. 2328800100069 (3-LI-7,NAT=0.9241) 92.41+-0.04 % . 2328800100070 LiF sample: 2328800100071 Area - 5022.62(8) mm2 , 2328800100072 Diameter - 79.971(1) mm , 2328800100073 Thickness - 2.05(1) mm , 2328800100074 Mass - 27.17(1) g , 2328800100075 Density - 2.645(13) g/cm3 . 2328800100076 U mass areal density - 0.003084(7) g/cm2, 2328800100077 Li sample areal density - 0.13377(8) g/cm2, 2328800100078 U atomic mass - 235.0439299(20) u., 2328800100079 Li atomic mass - 7.0160034256(45) u. 2328800100080 MONITOR (92-U-235(N,F),,SIG) 2328800100081 The neutron flux was monitored using a 235U fis.chamber2328800100082 located at 146.8 or 211.5 cm upstream from the GAINS 2328800100083 sample position in 200- or 100-m measurements, 2328800100084 respectively. 2328800100085 MONIT-REF (,A.D.Carlson+,J,NDS,110,3215,2009) 2328800100086 CORRECTION For the fission chamber a correction for inhomogeneity 2328800100087 was applied, as described in REL-REF of C.Rouki+. 2328800100088 Correction for neutron flux attenuation between the 2328800100089 fis. chamber and the sample and multiple neutron 2328800100090 scattering in the sample itself. 2328800100091 ANALYSIS Angle-differential gamma-production cross section was 2328800100092 determined by formula (1). The 477.6keV transition in 2328800100093 7Li as the gamma-ray emission is isotropic; so 2328800100094 the differential cross section from any given detector 2328800100095 was multiplied by a factor of 4PI to obtain the total 2328800100096 gamma-ray production cross section. 2328800100097 This was verified in this experiment by the observation2328800100098 that cross sections obtained from detectors at 2328800100099 different angles were consistent with each other. 2328800100100 ERR-ANALYS (DATA-ERR) The total uncertainty < 5% . 2328800100101 The main components of the total uncertainty are 2328800100102 - the HPGe detector efficiency calibration, 2328800100103 - the fission chamber efficiency, 2328800100104 - the 235U(n,f) cross section, 2328800100105 - statistical uncertainties of the gamma-ray and 2328800100106 fission chamber yields. 2328800100107 STATUS (APRVD) Approved by author M.Nyman 20.04.2016. 2328800100108 HISTORY (20160311C) M.M. 2328800100109 Request for the data was sent 17.03.2016 . 2328800100110 (20160331R) Data were received from authors M.Nyman 2328800100111 and A.Plompen. 2328800100112 (20191119U) SD: Ref. EPJ/CS,146,11018,2017 added. 2328800100113 ENDBIB 111 0 2328800100114 NOCOMMON 0 0 2328800100115 ENDSUBENT 114 0 2328800199999 SUBENT 23288002 20160310 22482328800200001 BIB 4 7 2328800200002 REACTION (3-LI-7(N,INL)3-LI-7,PAR,SIG,G) 2328800200003 477.6 keV gamma production cross section. 2328800200004 EN-SEC (E,G) 477.6 keV transition from 1st excited state 1/2- 2328800200005 to the ground 3/2- state. 2328800200006 METHOD 100 m flight path 2328800200007 STATUS (TABLE) From authors 2328800200008 Data are on Fig.5 of PR/C,93,024610,2016 . 2328800200009 ENDBIB 7 0 2328800200010 COMMON 1 3 2328800200011 E 2328800200012 KEV 2328800200013 477.6 2328800200014 ENDCOMMON 3 0 2328800200015 DATA 4 139 2328800200016 EN EN-RSL-HW DATA DATA-ERR 2328800200017 KEV KEV B B 2328800200018 550.92 3.25 0.005894 0.002247 2328800200019 557.47 3.31 0.010748 0.002439 2328800200020 564.13 3.36 0.014363 0.002610 2328800200021 570.91 3.42 0.019492 0.002849 2328800200022 577.82 3.48 0.020208 0.002902 2328800200023 584.85 3.55 0.023980 0.002866 2328800200024 592.01 3.61 0.024934 0.003060 2328800200025 599.30 3.68 0.027906 0.003036 2328800200026 606.73 3.75 0.030949 0.003017 2328800200027 614.30 3.82 0.032359 0.003183 2328800200028 622.02 3.89 0.034829 0.003365 2328800200029 629.88 3.97 0.037225 0.003272 2328800200030 637.88 4.04 0.041618 0.003372 2328800200031 646.04 4.12 0.042804 0.003546 2328800200032 654.36 4.20 0.047071 0.003581 2328800200033 662.84 4.28 0.049183 0.003669 2328800200034 671.49 4.37 0.048874 0.003621 2328800200035 680.30 4.45 0.054787 0.003924 2328800200036 689.30 4.55 0.056372 0.003873 2328800200037 698.47 4.63 0.057347 0.003945 2328800200038 707.83 4.72 0.064015 0.004022 2328800200039 717.37 4.82 0.066150 0.004187 2328800200040 727.11 4.92 0.068229 0.004253 2328800200041 737.05 5.02 0.074157 0.004716 2328800200042 747.19 5.12 0.076246 0.004550 2328800200043 757.55 5.24 0.080137 0.004681 2328800200044 768.12 5.34 0.088124 0.005129 2328800200045 778.92 5.45 0.093064 0.005245 2328800200046 789.94 5.57 0.099130 0.005546 2328800200047 801.20 5.69 0.106959 0.005761 2328800200048 812.71 5.82 0.110950 0.005965 2328800200049 824.46 5.94 0.117164 0.006176 2328800200050 836.47 6.07 0.125959 0.006377 2328800200051 848.74 6.20 0.133093 0.006638 2328800200052 861.29 6.34 0.137525 0.006963 2328800200053 874.12 6.49 0.147182 0.007232 2328800200054 887.23 6.63 0.155680 0.007594 2328800200055 900.64 6.78 0.158728 0.007674 2328800200056 914.36 6.94 0.168747 0.008028 2328800200057 928.40 7.10 0.174537 0.008344 2328800200058 942.76 7.26 0.180644 0.008499 2328800200059 957.46 7.44 0.190799 0.008848 2328800200060 972.50 7.61 0.202431 0.009541 2328800200061 987.91 7.80 0.214859 0.009907 2328800200062 1003.68 7.97 0.213764 0.010044 2328800200063 1019.83 8.18 0.228264 0.010584 2328800200064 1036.37 8.37 0.232765 0.010599 2328800200065 1053.32 8.58 0.231855 0.010591 2328800200066 1070.70 8.79 0.231304 0.010623 2328800200067 1088.50 9.01 0.230982 0.010539 2328800200068 1106.75 9.24 0.228957 0.010278 2328800200069 1125.47 9.48 0.228732 0.010367 2328800200070 1144.66 9.72 0.233118 0.010443 2328800200071 1164.35 9.97 0.232313 0.010619 2328800200072 1184.56 10.24 0.228840 0.010182 2328800200073 1205.29 10.50 0.230636 0.010409 2328800200074 1226.58 10.79 0.228207 0.010276 2328800200075 1248.43 11.07 0.228809 0.010367 2328800200076 1270.87 11.37 0.223158 0.010139 2328800200077 1293.93 11.68 0.228322 0.010352 2328800200078 1317.62 12.01 0.232597 0.010446 2328800200079 1341.96 12.34 0.233215 0.010512 2328800200080 1366.99 12.69 0.229348 0.010388 2328800200081 1392.72 13.05 0.226316 0.010355 2328800200082 1419.18 13.42 0.228647 0.010221 2328800200083 1446.41 13.81 0.223992 0.010132 2328800200084 1474.43 14.21 0.222646 0.009963 2328800200085 1503.28 14.64 0.223423 0.009917 2328800200086 1532.98 15.06 0.223085 0.010083 2328800200087 1563.57 15.53 0.222125 0.009888 2328800200088 1595.08 15.99 0.226230 0.010136 2328800200089 1627.56 16.49 0.224777 0.010160 2328800200090 1661.04 17.00 0.220171 0.010075 2328800200091 1695.57 17.53 0.219020 0.009812 2328800200092 1731.18 18.09 0.218102 0.009821 2328800200093 1767.93 18.67 0.215563 0.009821 2328800200094 1805.86 19.27 0.220398 0.009891 2328800200095 1845.03 19.90 0.217201 0.010011 2328800200096 1885.49 20.56 0.215867 0.009711 2328800200097 1927.30 21.25 0.214951 0.009663 2328800200098 1970.52 21.97 0.215803 0.009798 2328800200099 2015.20 22.72 0.216209 0.009757 2328800200100 2061.43 23.50 0.212729 0.009624 2328800200101 2109.26 24.33 0.212644 0.009608 2328800200102 2158.78 25.19 0.214264 0.009584 2328800200103 2210.07 26.10 0.216456 0.009778 2328800200104 2263.21 27.05 0.214049 0.009852 2328800200105 2318.29 28.04 0.214972 0.009839 2328800200106 2375.41 29.08 0.215964 0.009722 2328800200107 2434.67 30.18 0.213835 0.009695 2328800200108 2496.18 31.33 0.218633 0.009849 2328800200109 2560.06 32.54 0.221833 0.009999 2328800200110 2626.42 33.82 0.223127 0.010255 2328800200111 2695.40 35.16 0.222725 0.009987 2328800200112 2767.14 36.58 0.225421 0.010215 2328800200113 2841.78 38.07 0.226135 0.010255 2328800200114 2919.49 39.64 0.226216 0.010328 2328800200115 3000.44 41.30 0.236338 0.010877 2328800200116 3084.81 43.07 0.245805 0.011184 2328800200117 3172.79 44.92 0.246963 0.011243 2328800200118 3264.60 46.89 0.255210 0.011789 2328800200119 3360.46 48.97 0.264937 0.011969 2328800200120 3460.61 51.18 0.274422 0.012414 2328800200121 3565.32 53.53 0.285797 0.012977 2328800200122 3674.86 56.02 0.303529 0.013882 2328800200123 3789.54 58.66 0.318369 0.014202 2328800200124 3909.69 61.49 0.323554 0.014440 2328800200125 4035.65 64.48 0.304278 0.013808 2328800200126 4167.82 67.68 0.281952 0.012707 2328800200127 4306.60 71.09 0.265537 0.012174 2328800200128 4452.44 74.75 0.250357 0.011576 2328800200129 4605.85 78.66 0.244515 0.011418 2328800200130 4767.34 82.84 0.239681 0.011046 2328800200131 4937.50 87.32 0.234639 0.010654 2328800200132 5116.96 92.14 0.235880 0.011045 2328800200133 5306.41 97.32 0.238544 0.011231 2328800200134 5506.62 102.89 0.236022 0.010842 2328800200135 5718.42 108.91 0.229002 0.010750 2328800200136 5942.71 115.39 0.221598 0.010457 2328800200137 6201.63 143.53 0.215238 0.009928 2328800200138 6499.18 154.02 0.209646 0.009873 2328800200139 6818.76 165.56 0.200927 0.009506 2328800200140 7162.59 178.28 0.188022 0.008892 2328800200141 7533.22 192.35 0.178512 0.008902 2328800200142 7933.52 207.95 0.171737 0.008767 2328800200143 8366.74 225.28 0.152074 0.007844 2328800200144 8836.62 244.61 0.135627 0.007511 2328800200145 9347.44 266.22 0.119989 0.007419 2328800200146 9904.13 290.47 0.116981 0.007432 2328800200147 10465.20 270.60 0.107526 0.008033 2328800200148 11028.65 292.85 0.098396 0.007834 2328800200149 11639.15 317.65 0.095349 0.008663 2328800200150 12302.10 345.30 0.090620 0.009570 2328800200151 13023.80 376.40 0.089118 0.009685 2328800200152 13811.45 411.25 0.079960 0.010010 2328800200153 14673.35 450.65 0.071389 0.010321 2328800200154 15619.30 495.30 0.071226 0.011422 2328800200155 16660.65 546.05 0.061279 0.011347 2328800200156 17810.80 604.10 0.064336 0.013827 2328800200157 ENDDATA 141 0 2328800200158 ENDSUBENT 157 0 2328800299999 SUBENT 23288003 20160310 22482328800300001 BIB 4 7 2328800300002 REACTION (3-LI-7(N,INL)3-LI-7,PAR,SIG,G) 2328800300003 477.6 keV gamma production cross section. 2328800300004 EN-SEC (E,G) 477.6 keV transition from 1st excited state 1/2- 2328800300005 to the ground 3/2- state. 2328800300006 METHOD 200 m flight path 2328800300007 STATUS (TABLE) From authors 2328800300008 Data are on Fig.5 of PR/C,93,024610,2016 . 2328800300009 ENDBIB 7 0 2328800300010 COMMON 1 3 2328800300011 E 2328800300012 KEV 2328800300013 477.6 2328800300014 ENDCOMMON 3 0 2328800300015 DATA 4 83 2328800300016 EN EN-RSL-HW DATA DATA-ERR 2328800300017 KEV KEV B B 2328800300018 551.56 5.43 0.005402 0.005850 2328800300019 562.59 5.59 0.015878 0.007433 2328800300020 573.95 5.77 0.014481 0.007260 2328800300021 585.66 5.94 0.022397 0.006933 2328800300022 597.73 6.13 0.019276 0.006402 2328800300023 610.18 6.32 0.027138 0.006416 2328800300024 623.02 6.52 0.030668 0.006333 2328800300025 636.27 6.73 0.034846 0.006343 2328800300026 649.95 6.95 0.042742 0.006633 2328800300027 664.08 7.18 0.043745 0.006667 2328800300028 678.67 7.42 0.045433 0.006549 2328800300029 693.74 7.66 0.055341 0.006299 2328800300030 709.33 7.93 0.057335 0.006590 2328800300031 725.45 8.19 0.059339 0.006654 2328800300032 742.12 8.48 0.072525 0.006721 2328800300033 759.37 8.77 0.078581 0.006845 2328800300034 777.23 9.09 0.090247 0.007023 2328800300035 795.74 9.41 0.101370 0.007374 2328800300036 814.91 9.76 0.106943 0.007305 2328800300037 834.78 10.12 0.116371 0.007661 2328800300038 855.39 10.50 0.135892 0.008147 2328800300039 876.77 10.89 0.146157 0.008246 2328800300040 898.96 11.31 0.160709 0.008474 2328800300041 922.01 11.75 0.166333 0.008397 2328800300042 945.96 12.21 0.182754 0.008887 2328800300043 970.85 12.69 0.198855 0.009761 2328800300044 996.73 13.20 0.212115 0.010352 2328800300045 1023.67 13.74 0.218520 0.010302 2328800300046 1051.72 14.30 0.226661 0.010599 2328800300047 1080.93 14.91 0.230252 0.010422 2328800300048 1111.38 15.54 0.222783 0.010006 2328800300049 1143.14 16.21 0.227199 0.010147 2328800300050 1176.28 16.93 0.228458 0.010037 2328800300051 1210.88 17.68 0.230419 0.010059 2328800300052 1247.03 18.48 0.229532 0.009874 2328800300053 1284.82 19.32 0.228476 0.010115 2328800300054 1324.36 20.22 0.225729 0.010047 2328800300055 1365.76 21.18 0.226029 0.009909 2328800300056 1409.13 22.19 0.226838 0.009788 2328800300057 1454.60 23.28 0.223074 0.009782 2328800300058 1502.31 24.43 0.220725 0.009483 2328800300059 1552.41 25.67 0.218767 0.009545 2328800300060 1605.06 26.99 0.222949 0.009730 2328800300061 1660.44 28.40 0.223921 0.009869 2328800300062 1718.73 29.90 0.220574 0.009555 2328800300063 1780.16 31.53 0.213405 0.009356 2328800300064 1844.94 33.26 0.216462 0.009530 2328800300065 1913.32 35.13 0.215934 0.009576 2328800300066 1985.59 37.14 0.216347 0.009436 2328800300067 2062.03 39.30 0.216722 0.009468 2328800300068 2142.98 41.65 0.216880 0.009518 2328800300069 2228.80 44.18 0.218146 0.009630 2328800300070 2319.88 46.91 0.215087 0.009440 2328800300071 2416.67 49.88 0.217472 0.009501 2328800300072 2519.66 53.11 0.218611 0.009806 2328800300073 2623.55 50.79 0.226258 0.010302 2328800300074 2728.21 53.87 0.225878 0.010426 2328800300075 2839.26 57.18 0.230895 0.010597 2328800300076 2957.24 60.80 0.235332 0.010706 2328800300077 3082.75 64.71 0.251663 0.011388 2328800300078 3216.43 68.97 0.252767 0.011421 2328800300079 3359.02 73.62 0.268217 0.012031 2328800300080 3511.33 78.69 0.276766 0.012300 2328800300081 3674.26 84.24 0.307360 0.013366 2328800300082 3848.82 90.32 0.325752 0.013896 2328800300083 4036.16 97.02 0.306895 0.013227 2328800300084 4237.55 104.38 0.269694 0.012168 2328800300085 4454.43 112.51 0.252110 0.011791 2328800300086 4688.45 121.51 0.236633 0.011171 2328800300087 4941.46 131.50 0.244614 0.011447 2328800300088 5232.17 159.21 0.243468 0.010982 2328800300089 5566.11 174.73 0.236877 0.010950 2328800300090 5933.19 192.35 0.223608 0.010420 2328800300091 6337.96 212.42 0.205163 0.009921 2328800300092 6785.78 235.40 0.191265 0.009623 2328800300093 7353.07 331.89 0.175820 0.008670 2328800300094 8066.46 381.51 0.161660 0.008866 2328800300095 8889.55 441.59 0.135320 0.008951 2328800300096 9846.17 515.04 0.113857 0.009966 2328800300097 10967.10 605.90 0.090656 0.011817 2328800300098 12292.55 719.55 0.082040 0.014159 2328800300099 13875.95 863.85 0.070286 0.017452 2328800300100 15789.55 1049.75 0.044395 0.021467 2328800300101 ENDDATA 85 0 2328800300102 ENDSUBENT 101 0 2328800399999 ENDENTRY 3 0 2328899999999