ENTRY L0233 20181001 L038L023300000001 SUBENT L0233001 20181001 L038L023300100001 BIB 10 40 L023300100002 TITLE Monoenergetic photon-induced fission cross-section L023300100003 ratio measurements for 235U, 238U, and 239Pu from 9.0 L023300100004 to 17.0 MeV L023300100005 AUTHOR (Krishichayan,S.W.Finch,C.R.Howell,A.P.Tonchev, L023300100006 W.Tornow) L023300100007 INSTITUTE (1USATNL,1USADKE) L023300100008 REFERENCE (J,PR/C,98,014608,2018) L023300100009 REL-REF (O,L0222002,Krishichayan,J,NIM/A,854,40,2017) L023300100010 Identical data as given in present reference tab.3,wereL023300100011 published earlier in NIM/A and compiled in entry L0222.L023300100012 Data given in tab.3 are not included here in L0233. L023300100013 FACILITY (ESTRG,1USATNL) Experiment performed at HIgS facility L023300100014 at Duke University, which produces quasimonoenergetic L023300100015 Compton backscattered photon beam L023300100016 DETECTOR (IOCH) Dual-fission ionization chamber was used in L023300100017 experiment. In the ionization chamber only two L023300100018 reference foils were placed in two ionization chambers.L023300100019 The body of the dual-fission chamber has an outer L023300100020 diameter of 2.50 cm and an overall thickness of L023300100021 1.73 cm. The dimensions of the active gas volume L023300100022 of each chamber was 2.21 cm diameter and 0.495 cm L023300100023 thickness.The FC fill gas used for counting is P-10 L023300100024 90% argon and 10% methane. L023300100025 INC-SOURCE (LCS) The HIgS facility produces a quasi- L023300100026 monoenergetic Compton backscattered photon beam L023300100027 tunable in wide energy range with either linear or L023300100028 circular polarization. A high-flux photon beam is L023300100029 created by colliding relativistic electron beam L023300100030 bunches, circulating in a storage ring, with photon L023300100031 pulses inside the high-power optical cavity of a free- L023300100032 electron laser (FEL).For this experiment 450 and 540 nmL023300100033 FEL wavelength photons and 400-650 MeV electrons were L023300100034 used to provide high-energy photon beams between 9.0 L023300100035 and 17.0 MeV. L023300100036 ERR-ANALYS (ERR-1) Systematic uncertainty due to the uncertainty L023300100037 in the ratio of the mass densities of the DFC foils L023300100038 (ERR-T) Total uncertainty computed by adding L023300100039 statistical and systematic uncertainties in L023300100040 quadrature. L023300100041 HISTORY (20181001C) Compiled by S.H. L023300100042 ENDBIB 40 0 L023300100043 COMMON 2 3 L023300100044 EN-RSL ERR-1 L023300100045 PER-CENT PER-CENT L023300100046 2.0 2.0 L023300100047 ENDCOMMON 3 0 L023300100048 ENDSUBENT 47 0 L023300199999 SUBENT L0233002 20181001 L038L023300200001 BIB 3 7 L023300200002 REACTION ((92-U-235(G,F),,SIG)/(94-PU-239(G,F),,SIG)) L023300200003 STATUS (TABLE) Data taken from tab. 4 of the reference L023300200004 SAMPLE (92-U-235,ENR=0.99835) mass 160.36(160) mu-g L023300200005 (94-PU-239,ENR=0.99954) mass 8.52(3) mu-g L023300200006 The sample foils are electroplated on 0.013 cm thick L023300200007 Ti disks. The active area of the deposit was 1.27 cm L023300200008 in diameter. L023300200009 ENDBIB 7 0 L023300200010 NOCOMMON 0 0 L023300200011 DATA 3 23 L023300200012 EN DATA ERR-T L023300200013 MEV NO-DIM NO-DIM L023300200014 8.98 0.621 0.031 L023300200015 9.48 0.707 0.033 L023300200016 9.97 0.584 0.026 L023300200017 10.23 0.636 0.028 L023300200018 10.72 0.710 0.029 L023300200019 10.96 0.624 0.022 L023300200020 11.48 0.700 0.025 L023300200021 11.73 0.822 0.030 L023300200022 11.95 0.792 0.028 L023300200023 12.23 0.852 0.029 L023300200024 12.47 0.880 0.031 L023300200025 12.73 0.838 0.028 L023300200026 12.95 0.856 0.030 L023300200027 13.48 0.766 0.028 L023300200028 13.96 0.742 0.027 L023300200029 14.37 0.763 0.028 L023300200030 14.77 0.764 0.031 L023300200031 14.98 0.826 0.032 L023300200032 15.18 0.759 0.029 L023300200033 15.57 0.772 0.030 L023300200034 15.98 0.802 0.030 L023300200035 16.37 0.789 0.030 L023300200036 16.77 0.765 0.029 L023300200037 ENDDATA 25 0 L023300200038 ENDSUBENT 37 0 L023300299999 SUBENT L0233003 20181001 L038L023300300001 BIB 3 7 L023300300002 REACTION ((92-U-238(G,F),,SIG)/(94-PU-239(G,F),,SIG)) L023300300003 STATUS (TABLE) Data taken from tab. 5 of the reference L023300300004 SAMPLE (92-U-238,ENR=0.99990) mass 121.90(122) mu-g L023300300005 (94-PU-239,ENR=0.99954) mass 8.52(3) mu-g L023300300006 The sample foils are electroplated on 0.013 cm thick L023300300007 Ti disks. The active area of the deposit was 1.27 cm L023300300008 in diameter.ENDBIB L023300300009 ENDBIB 7 0 L023300300010 NOCOMMON 0 0 L023300300011 DATA 3 33 L023300300012 EN DATA ERR-T L023300300013 MEV NO-DIM NO-DIM L023300300014 8.98 0.353 0.021 L023300300015 9.38 0.360 0.019 L023300300016 9.77 0.342 0.014 L023300300017 9.97 0.343 0.014 L023300300018 10.38 0.298 0.012 L023300300019 10.58 0.347 0.014 L023300300020 10.78 0.313 0.012 L023300300021 10.96 0.308 0.012 L023300300022 11.18 0.313 0.012 L023300300023 11.38 0.293 0.011 L023300300024 11.57 0.314 0.015 L023300300025 11.79 0.285 0.011 L023300300026 11.95 0.293 0.011 L023300300027 12.17 0.301 0.012 L023300300028 12.36 0.294 0.011 L023300300029 12.58 0.323 0.011 L023300300030 12.77 0.329 0.013 L023300300031 12.95 0.329 0.012 L023300300032 13.17 0.374 0.014 L023300300033 13.38 0.365 0.013 L023300300034 13.56 0.366 0.014 L023300300035 13.77 0.337 0.012 L023300300036 13.94 0.380 0.014 L023300300037 14.18 0.390 0.015 L023300300038 14.37 0.408 0.016 L023300300039 14.77 0.403 0.016 L023300300040 14.98 0.404 0.016 L023300300041 15.38 0.404 0.016 L023300300042 15.57 0.419 0.019 L023300300043 15.98 0.379 0.015 L023300300044 16.37 0.404 0.017 L023300300045 16.77 0.410 0.019 L023300300046 16.98 0.373 0.020 L023300300047 ENDDATA 35 0 L023300300048 ENDSUBENT 47 0 L023300399999 ENDENTRY 3 0 L023399999999