ENTRY 21204 19800110 00002120400000001 SUBENT 21204001 19800110 00002120400100001 BIB 12 36 2120400100002 INSTITUTE (2UK HAR) 2120400100003 REFERENCE (J,JNE,7,199,58) 2120400100004 (R,NRDC-113,,5903) REVISED VALUES. 2120400100005 AUTHOR (H.J.HAY) 2120400100006 TITLE -THE SLOW NEUTRON CROSS SECTION OF ND-143- 2120400100007 FACILITY (SPECC) BE CRYSTAL SPECTROMETER. 2120400100008 (SELVE) VELOCITY SELECTOR IN CONJUNCTION WITH CRYSTAL 2120400100009 SPECTROMETER IN ENERGY RANGE 0.01-0.1 EV TO 2120400100010 ELIMINATE HIGHER ORDER REFLECTIONS. 2120400100011 INC-SOURCE (REAC ) REACTOR. 2120400100012 SAMPLE .SAMPLES MADE FROM MATERIALS OF TWO ENRICHMENTS, ONE 2120400100013 CONTAINING 193 GM ND2-O3, THE OTHER 164 MG. ISOTOPIC 2120400100014 AND SPECTROGRAPHIC ANALYSIS IN TABLE 1 OF JNE,7,199. 2120400100015 SM-149 CONTENT ESTIMATED TO BE LESS THAN 0.027 PER- 2120400100016 CENT FOR FIRST SAMPLE, NEGLIGIBLE FOR SECOND. 2120400100017 .SAMPLE MATERIALS SEALED IN BRASS TUBES BETWEEN 0.003 2120400100018 INCH THICK WINDOWS TO GIVE SAMPLES OF THICKNESS 2120400100019 4.13E+21 ATOM/CM-SQ AND 0.86 ATOM/CM-SQ OF ND. 2120400100020 METHOD .TRANSMISSION. 2120400100021 PART-DET (N ) NEUTRONS. 2120400100022 STATUS (NDD ) FROM NEUDATA. 2120400100023 HISTORY (791206T) 2120400100024 (800110E) 2120400100025 CORRECTION .FOR MEASUREMENTS BETWEEN 0.07 AND 10 EV- 2120400100026 1.HIGHER ORDER CONTAMINATION OF THE NEUTRON BEAM, 2120400100027 MEASURED WITH 1 MM THICK CD SHEET AND CALCULATED, 2120400100028 ABOUT 3 PERCENT AT 0.07 AND 0.4 EV, DECREASING TO 2120400100029 1 PERCENT AT 0.11 EV AND ABOVE 1 EV. 2120400100030 2.OXYGEN CONTAMINATION, CORRECTION OF -5.7 B. 2120400100031 3.OTHER ELEMENT CONTAMINATION, LESS THAN 0.1 B. 2120400100032 4.OTHER ND ISOTOPES, - 4 B AT 0.025 EV, -2 B ABOVE 2120400100033 1 EV. 2120400100034 5.ND-145 RESONANCE AT 4.4 EV, -9 B AT 4.4 EV. 2120400100035 6.EFFECT OF SMALL ANGLE SCATTERING WAS SMALL. 2120400100036 .FOR MEASUREMENTS BELOW 0.1 EV- 2120400100037 CORRECTION FOR SM-149, 10 B AT 0.025 EV. 2120400100038 ENDBIB 36 0 2120400100039 NOCOMMON 0 0 2120400100040 ENDSUBENT 39 0 2120400199999 SUBENT 21204002 19800110 00002120400200001 BIB 3 5 2120400200002 REACTION 1(60-ND-143(N,EL),,WID) 2120400200003 2(60-ND-143(N,G),,WID) 2120400200004 ANALYSIS .FROM BREIT-WIGNER FIT TO TOTAL CROSS-SECTION AFTER 2120400200005 SUBTRACTION OF 1/V TAIL FROM 56 EV LEVEL. 2120400200006 STATUS .DATA FROM TEXT OF PUBLICATION. 2120400200007 ENDBIB 5 0 2120400200008 NOCOMMON 0 0 2120400200009 DATA 6 1 2120400200010 EN-RES EN-RES-ERR DATA 1DATA-ERR 1DATA 2DATA-ERR 22120400200011 EV EV MILLI-EV MILLI-EV MILLI-EV MILLI-EV 2120400200012 -6.0000E+00 1.0000E+00 6.8000E+01 1.5000E+01 8.6000E+01 1.5000E+012120400200013 ENDDATA 3 0 2120400200014 ENDSUBENT 13 0 2120400299999 SUBENT 21204003 19800110 00002120400300001 BIB 2 4 2120400300002 REACTION (60-ND-143(N,TOT),,SIG) 2120400300003 STATUS .DATA FROM TEXT OF PUBLICATION. 2120400300004 .DIFFERENTIAL TOTAL CROSS SECTION DATA ONLY AS GRAPH 2120400300005 IN FIG 1 AND FIG 2 OF PAPER. 2120400300006 ENDBIB 4 0 2120400300007 COMMON 1 3 2120400300008 EN 2120400300009 EV 2120400300010 2.5300E-02 2120400300011 ENDCOMMON 3 0 2120400300012 DATA 2 1 2120400300013 DATA DATA-ERR 2120400300014 B B 2120400300015 4.1000E+02 2.0000E+01 2120400300016 ENDDATA 3 0 2120400300017 ENDSUBENT 16 0 2120400399999 SUBENT 21204004 19800110 00002120400400001 BIB 2 2 2120400400002 REACTION (60-ND-143(N,G)60-ND-144,,SIG) 2120400400003 STATUS .TEXT. 2120400400004 ENDBIB 2 0 2120400400005 NOCOMMON 0 0 2120400400006 DATA 3 1 2120400400007 EN DATA DATA-ERR 2120400400008 EV B B 2120400400009 2.5300E-02 3.4300E+02 2.0000E+01 2120400400010 ENDDATA 3 0 2120400400011 ENDSUBENT 10 0 2120400499999 SUBENT 21204005 19800110 00002120400500001 BIB 2 2 2120400500002 REACTION (60-ND-143(N,EL)60-ND-143,,SIG) 2120400500003 STATUS .TEXT. 2120400500004 ENDBIB 2 0 2120400500005 NOCOMMON 0 0 2120400500006 DATA 3 1 2120400500007 EN DATA DATA-ERR 2120400500008 EV B B 2120400500009 2.5300E-02 6.7000E+01 7.0000E+00 2120400500010 ENDDATA 3 0 2120400500011 ENDSUBENT 10 0 2120400599999 ENDENTRY 5 0 2120499999999