ENTRY 12715 19820903 00001271500000001 SUBENT 12715001 19820903 00001271500100001 BIB 13 37 1271500100002 INSTITUTE (1USAANL) 1271500100003 REFERENCE (J,NP/A,383,224,8207) 1271500100004 AUTHOR (W.P.POENITZ,J.F.WHALEN) 1271500100005 TITLE MEASUREMENTS OF THE TOTAL NEUTRON CROSS SECTIONS OF 1271500100006 HYDROGEN AND CARBON AT 0.5, 1.0, AND 2.0 MEV 1271500100007 N-SOURCE (P-LI7) 1271500100008 SAMPLE RIGHT CIRCULAR CYLINDERS, 2.54-CM IN DIAMETER. SAMPLES 1271500100009 USED ARE- 1271500100010 CH(2) 19.23 AND 12.83 ATOMS/B 1271500100011 CH 8.10 AND 6.50 ATOMS/B 1271500100012 C 4.91 AND 3.20 ATOMS/B 1271500100013 DETECTOR BLACK NEUTRON DETECTOR PLACED 121-CM FROM SAMPLES 1271500100014 MONITOR RESONANCES OF SI AND C USED TO CALIBRATE TIME OF FLIGHT1271500100015 SCALE AT 0.5 AND 2 MEV. 1271500100016 SECOND NEUTRON GROUP OF NEUTRON SOURCE REACTION USED TO1271500100017 CALIBRATE TIME OF FLIGHT SCALE AT 1 MEV. 1271500100018 METHOD (TOF) FLIGHT PATH OF 211-CM. TWO COLLIMATORS USED IN 1271500100019 BEAM. SAMPLES PLACED IN EIGHT POSITION SAMPLE WHEEL 1271500100020 WITH SHORT IRRADIATION TIMES. 1271500100021 CORRECTION CORRECTIONS MADE FOR- 1271500100022 -DEADTIME 1271500100023 -BACKGROUND 1271500100024 -TRANSMISSION OF NEUTRONS THROUGH AIR 1271500100025 -CHEMICAL IMPURITIES 1271500100026 -DEUTERIUM CONTENT OF ELEMENTAL HYDROGEN 1271500100027 -NEUTRON SCATTER INTO DETECTOR 1271500100028 -CHANGE OF AVERAGE CROSS SECTIONS INTO CROSS SECTIONS 1271500100029 AT AVERAGE ENERGY. 1271500100030 ERR-ANALYS (ERR-T) TOTAL ERROR, CONSISTING OF UNCERTAINTIES IN 1271500100031 SAMPLE MASS, BACKGROUND, AND DEADTIME. 1271500100032 (ERR-S) RANDOM ERROR 1271500100033 (EN-ERR) NEUTRON ENERGY DUE TO UNCERTAINTIES IN 1271500100034 RESONANCE ENERGIES AND EXTRAPOLATIONS USED IN 1271500100035 ESTABLISHING ENERGY SCALE. 1271500100036 STATUS (APRVD) APPROVED BY W.P.POENITZ, 82/3/11. 1271500100037 HISTORY (811209C) 1271500100038 (820903A) REFERENCE UPDATE. 1271500100039 ENDBIB 37 0 1271500100040 NOCOMMON 0 0 1271500100041 ENDSUBENT 40 0 1271500199999 SUBENT 12715002 19820127 00001271500200001 BIB 1 1 1271500200002 REACTION (1-H-1(N,TOT),,SIG) 1271500200003 ENDBIB 1 0 1271500200004 NOCOMMON 0 0 1271500200005 DATA 6 3 1271500200006 EN EN-RSL EN-ERR DATA ERR-T ERR-S 1271500200007 MEV MEV MEV B B PER-CENT 1271500200008 0.509 0.035 0.001 6.049 0.013 0.10 1271500200009 1.024 0.030 0.002 4.194 0.010 0.14 1271500200010 2.003 0.024 0.003 2.902 0.013 0.41 1271500200011 ENDDATA 5 0 1271500200012 ENDSUBENT 11 0 1271500299999 SUBENT 12715003 19820127 00001271500300001 BIB 1 1 1271500300002 REACTION (6-C-0(N,TOT),,SIG) 1271500300003 ENDBIB 1 0 1271500300004 NOCOMMON 0 0 1271500300005 DATA 6 3 1271500300006 EN EN-RSL EN-ERR DATA ERR-T ERR-S 1271500300007 MEV MEV MEV B B PER-CENT 1271500300008 0.509 0.035 0.001 3.380 0.006 0.12 1271500300009 1.024 0.030 0.002 2.539 0.005 0.16 1271500300010 2.003 0.024 0.003 1.678 0.004 0.18 1271500300011 ENDDATA 5 0 1271500300012 ENDSUBENT 11 0 1271500399999 ENDENTRY 3 0 1271599999999