ENTRY 12981 19861106 00001298100000001 SUBENT 12981001 19861106 00001298100100001 BIB 12 25 1298100100002 INSTITUTE (1USALRL) 1298100100003 REFERENCE (J,PR/C,34,810,8609) 1298100100004 AUTHOR (H.S.CAMARDA,T.W.PHILLIPS,R.M.WHITE) 1298100100005 TITLE TOTAL NEUTRON CROSS SECTION OF 40-CA AND CROSS SECTION 1298100100006 DIFFERENCE OF 44-CA -- 40-CA 1298100100007 FACILITY (LINAC) LLNL 100-MEV ELECTRON LINAC 1298100100008 INC-SOURCE (PHOTO) WHITE SOURCE FROM TA-BE TARGET 1298100100009 METHOD (TOF) 250 METER FLIGHT PATH 1298100100010 DETECTOR (SCIN) 16 SCINTILLATORS 25.4 X 25.4 X 5.1 CM, EACH 1298100100011 VIEWED BY 2 PHOTOTUBES OPERATING IN COINCIDENCE. 1298100100012 SAMPLE THE 40-CA SAMPLE CONTAINS 99.87% 40-CA AS CACO(3) IN A 1298100100013 CYLINDRICAL CONTAINER OF 15 MM INNER DIAMETER. THE 1298100100014 SAMPLE THICKNESSES ARE: 1298100100015 40-CA 0.1397 (ATOMS/BARN) 1298100100016 42-CA 0.0001 1298100100017 44-CA 0.0001 1298100100018 C 0.1399 1298100100019 O 0.4196 1298100100020 THE 2 SAMPLE-OUT SAMPLES WERE OF H(2)O AND C CONTAINING1298100100021 THE SAME NUMBER OF O AND C ATOMS AS THE SAMPLE-IN 1298100100022 SAMPLE. 1298100100023 CORRECTION DATA WERE CORRECTED FOR BACKGROUND, FOR CARBON AND 1298100100024 OXYGEN IN THE SAMPLES AND DEAD-TIME. 1298100100025 STATUS (APRVD) T.W.PHILLIPS, 11/12/86. 1298100100026 HISTORY (861030C) 1298100100027 ENDBIB 25 0 1298100100028 NOCOMMON 0 0 1298100100029 ENDSUBENT 28 0 1298100199999 SUBENT 12981002 19861106 00001298100200001 BIB 2 6 1298100200002 REACTION (20-CA-40(N,TOT),,SIG) 1298100200003 ERR-ANALYS (ERR-S) STATISTICAL UNCERTAINTY. SYSTEMATIC UNCERT- 1298100200004 AINTIES INCLUDE NORMALIZATION, BACKGROUND AND 1298100200005 CORRECTIONS FOR H SCATTERING IN THE H(2)O OUT 1298100200006 SAMPLE. THE SYSTEMATIC UNCERTAINTIES RANGE FROM 1% 1298100200007 AT LOWER ENERGIES TO 2% AT HIGHER ENERGIES. 1298100200008 ENDBIB 6 0 1298100200009 NOCOMMON 0 0 1298100200010 DATA 3 17 1298100200011 EN DATA ERR-S 1298100200012 MEV B B 1298100200013 5.940 3.199 0.027 1298100200014 6.712 3.005 0.019 1298100200015 7.456 2.917 0.017 1298100200016 8.331 2.761 0.019 1298100200017 9.371 2.658 0.020 1298100200018 10.62 2.468 0.014 1298100200019 12.14 2.287 0.015 1298100200020 14.01 2.120 0.016 1298100200021 16.37 2.045 0.020 1298100200022 19.40 2.017 0.019 1298100200023 23.19 2.072 0.018 1298100200024 28.41 2.136 0.021 1298100200025 33.17 2.182 0.017 1298100200026 37.38 2.210 0.019 1298100200027 42.49 2.190 0.023 1298100200028 48.76 2.136 0.024 1298100200029 56.57 2.075 0.046 1298100200030 ENDDATA 19 0 1298100200031 ENDSUBENT 30 0 1298100299999 SUBENT 12981003 19861106 00001298100300001 BIB 3 13 1298100300002 REACTION ((20-CA-44(N,TOT),,SIG)-(20-CA-40(N,TOT),,SIG)) 1298100300003 SAMPLE THE 44-CA SAMPLE CONTAINS 44-CA AS CACO(3) IN A 1298100300004 CYLINDRICAL CONTAINER OF 15 MM INNER DIAMETER. THE 1298100300005 SAMPLE THICKNESSES ARE: 1298100300006 40-CA 0.0019 (ATOMS/BARN) 1298100300007 44-CA 0.1380 1298100300008 C 0.1399 1298100300009 O 0.4198 1298100300010 ERR-ANALYS (ERR-S) STATISTICAL ERR. THE MOST IMPORTANT SOURCE 1298100300011 OF SYSTEMATIC ERRORS FOR THIS DIFFERENCE 1298100300012 MEASUREMENT COMES FROM RUN NORMALIZATIONS AND 1298100300013 SAMPLE THICKNESS ERRORS. SYSTEMATIC UNCERTAINTY 1298100300014 ESTIMATED AT 20%. 1298100300015 ENDBIB 13 0 1298100300016 NOCOMMON 0 0 1298100300017 DATA 3 14 1298100300018 EN DATA ERR-S 1298100300019 MEV MB MB 1298100300020 5.09 183.8 19.5 1298100300021 6.18 198.9 10.1 1298100300022 7.18 127.4 8.5 1298100300023 8.39 173.5 9.1 1298100300024 9.74 127.0 6.5 1298100300025 11.56 157.8 6.4 1298100300026 13.98 179.7 7.2 1298100300027 17.23 169.4 6.5 1298100300028 21.80 146.7 6.9 1298100300029 28.07 171.3 8.4 1298100300030 34.22 185.4 12.4 1298100300031 40.31 193.3 17.4 1298100300032 48.29 246.3 24.0 1298100300033 58.99 247.3 52.8 1298100300034 ENDDATA 16 0 1298100300035 ENDSUBENT 34 0 1298100399999 ENDENTRY 3 0 1298199999999