ENTRY 13641 19970205 00001364100000001 SUBENT 13641001 19970205 00001364100100001 BIB 14 30 1364100100002 INSTITUTE (1USAORL) 1364100100003 REFERENCE (C,75WASH,2,762,7503) 1364100100004 AUTHOR (J.K.DICKENS,G.L.MORGAN,F.G.PEREY) 1364100100005 TITLE Cross sections for the production of low energy photons1364100100006 by neutron interaction with fluorine and tantalum 1364100100007 FACILITY (LINAC) Oak Ridge electron linear accelerator 1364100100008 INC-SOURCE (PHOTO) Photoneutrons from tantalum target 1364100100009 INC-SPECT White neutron source from 0 to 20 MeV. 1364100100010 DETECTOR (GE-IN) Intrinsic Ge, 200 square mm 1364100100011 (SCIN) Organic scintillators used to monitor flux. 1364100100012 MONITOR (1-H-1(N,EL)1-H-1,,DA) 1364100100013 Efficiency of Germanium detector measured using 241Am, 1364100100014 57Co, and 152Eu calibrated sources. 1364100100015 ANALYSIS Photons detected at 92 degrees and analyzed for peaks 1364100100016 corresponding to detection of the four separate 1364100100017 components of k-xray emission at 56, 57, 65, and 67 1364100100018 keV. 1364100100019 (4PI1A) Results were summed and multiplied by 4 pi 1364100100020 to give the total k-xray production cross sections. 1364100100021 CORRECTION Corrections made to data for dead time, self- 1364100100022 absorption in sample, and effects due to an extended 1364100100023 geometry. Background due to scattered neutrons 1364100100024 determined to be negligible. 1364100100025 ERR-ANALYS (DATA-ERR) Data errors given do not include an overall 1364100100026 normalization uncertainty of 10% due to neutron flux 1364100100027 measurements. 1364100100028 STATUS Data received by electronic mail, J.K.Dickens, 97/2/1. 1364100100029 (APRVD) Approved by J.K. Dickens, 97/1/5 1364100100030 See data set 10583 for fluorine data. 1364100100031 HISTORY (970203C) 1364100100032 ENDBIB 30 0 1364100100033 NOCOMMON 0 0 1364100100034 ENDSUBENT 33 0 1364100199999 SUBENT 13641002 19970203 00001364100200001 BIB 2 2 1364100200002 REACTION (73-TA-0(N,X)0-G-0,,SIG,,AV) 1364100200003 SAMPLE Tantalum metal, thickness = 0.0007 atoms/b. 1364100200004 ENDBIB 2 0 1364100200005 NOCOMMON 0 0 1364100200006 DATA 4 50 1364100200007 EN-MEAN EN-RSL DATA DATA-ERR 1364100200008 MEV MEV B B 1364100200009 1.1056E-01 1.9155E-02 2.2415E+00 5.7557E-02 1364100200010 1.3070E-01 2.1116E-02 1.6526E+00 4.2110E-02 1364100200011 1.4992E-01 1.7330E-02 1.5383E+00 4.7238E-02 1364100200012 1.6895E-01 2.0726E-02 1.2784E+00 3.4672E-02 1364100200013 1.8848E-01 1.8333E-02 9.6200E-01 2.8454E-02 1364100200014 2.0829E-01 2.1295E-02 9.3606E-01 2.5625E-02 1364100200015 2.3141E-01 2.4932E-01 8.6362E-01 2.1059E-02 1364100200016 2.5092E-01 1.4095E-02 7.6734E-01 2.5285E-02 1364100200017 2.6835E-01 2.0776E-02 8.1930E-01 1.9922E-02 1364100200018 2.9044E-01 2.3392E-02 8.2676E-01 1.9221E-02 1364100200019 3.2647E-01 4.8665E-02 7.5206E-01 1.1901E-02 1364100200020 3.7666E-01 5.1723E-02 7.4503E-01 1.0616E-02 1364100200021 4.2871E-01 5.2373E-02 7.5979E-01 1.1793E-02 1364100200022 4.7971E-01 4.9628E-02 8.7558E-01 1.1573E-02 1364100200023 5.2590E-01 4.2754E-02 9.1557E-01 1.2426E-02 1364100200024 5.7149E-01 4.8429E-02 9.5972E-01 1.1673E-02 1364100200025 6.4385E-01 9.6296E-02 1.1271E+00 8.8750E-03 1364100200026 7.3946E-01 9.4914E-02 1.2213E+00 8.8730E-03 1364100200027 8.4486E-01 1.1588E-01 1.3782E+00 8.5631E-03 1364100200028 9.5509E-01 1.0459E-01 1.5007E+00 9.6488E-03 1364100200029 1.0582E+00 1.0170E-01 1.8889E+00 1.2806E-02 1364100200030 1.1555E+00 9.2880E-02 2.0807E+00 1.4334E-02 1364100200031 1.2545E+00 1.0506E-01 2.1333E+00 1.4164E-02 1364100200032 1.3511E+00 8.8115E-02 2.2104E+00 1.7148E-02 1364100200033 1.4438E+00 9.7343E-02 2.2892E+00 1.7188E-02 1364100200034 1.5464E+00 1.0791E-01 2.3291E+00 1.7618E-02 1364100200035 1.6604E+00 1.2006E-01 2.5047E+00 1.8817E-02 1364100200036 1.7643E+00 8.7713E-02 2.5752E+00 2.4513E-02 1364100200037 1.8555E+00 9.4603E-02 2.6190E+00 2.4999E-02 1364100200038 1.9539E+00 1.0224E-01 2.7203E+00 2.5966E-02 1364100200039 2.2570E+00 5.0409E-01 2.7258E+00 1.4099E-02 1364100200040 2.7663E+00 5.1443E-01 2.5599E+00 1.8209E-02 1364100200041 3.2417E+00 4.3636E-01 2.4245E+00 2.4448E-02 1364100200042 3.7290E+00 5.3834E-01 2.3759E+00 2.5908E-02 1364100200043 4.2437E+00 4.9093E-01 2.4486E+00 3.1853E-02 1364100200044 4.7829E+00 5.8752E-01 2.5521E+00 3.1745E-02 1364100200045 5.5676E+00 9.8198E-01 2.5031E+00 2.7741E-02 1364100200046 6.5272E+00 9.3712E-01 2.7702E+00 3.1799E-02 1364100200047 7.5826E+00 1.1737E+00 2.7067E+00 3.3250E-02 1364100200048 8.6472E+00 9.5551E-01 3.1073E+00 4.5799E-02 1364100200049 9.6923E+00 1.1345E+00 3.3867E+00 5.1345E-02 1364100200050 1.0584E+01 6.4879E-01 3.5793E+00 8.1197E-02 1364100200051 1.1265E+01 7.1274E-01 3.6147E+00 9.1518E-02 1364100200052 1.2014E+01 7.8543E-01 3.7524E+00 1.0141E-01 1364100200053 1.2841E+01 8.6844E-01 3.8658E+00 1.1722E-01 1364100200054 1.3757E+01 9.6365E-01 4.3172E+00 1.3205E-01 1364100200055 1.4775E+01 1.0734E+00 3.8272E+00 1.4824E-01 1364100200056 1.5912E+01 1.2007E+00 3.5621E+00 1.5270E-01 1364100200057 1.7187E+01 1.3491E+00 3.2418E+00 1.5153E-01 1364100200058 1.8623E+01 1.5233E+00 3.0411E+00 1.5772E-01 1364100200059 ENDDATA 52 0 1364100200060 ENDSUBENT 59 0 1364100299999 ENDENTRY 2 0 1364199999999