ENTRY 21257 19801024 00002125700000001 SUBENT 21257001 19801024 00002125700100001 BIB 13 35 2125700100002 INSTITUTE (2ITYTRI) 2125700100003 REFERENCE (J,NSE,31,341,6802) 2125700100004 (R,INFN/BE-65,10,6512) MORE DETAILED 2125700100005 INFORMATION. 2125700100006 AUTHOR (F.GUARRINI,A.LUCHES,G.PAULI,G.POIANI) 2125700100007 TITLE -TOTAL CROSS SECTIONS OF NA, K, AND CA FOR 14 2125700100008 MEV NEUTRONS.- 2125700100009 FACILITY (CCW ) COCKCROFT-WALTON ACCELERATOR. 2125700100010 INC-SOURCE (D-T ) 200 KEV DEUTERON BOMBARDMENT OF A 2125700100011 1 MG/CM*CM THICK ZIRCONIUM TARGET, LOADED 2125700100012 WITH TRITIUM GAS. 2125700100013 SAMPLE .ALL SAMPLES ARE 99.9 PC PURE ELEMENTS. 2125700100014 CYLINDRICAL SHAPE, COATED WITH POLYETHYLENE 2125700100015 TO PREVENT REACTIONS WITH THE ATHMOSPHERE. 2125700100016 METHOD .TRANSMISSION MEASUREMENT. 2125700100017 .DURING THE MEASUREMENTS THE SAMPLE WAS AT 2125700100018 20 CM FROM THE NEUTRON SOURCE AND AT 40 CM 2125700100019 FROM THE DETECTOR. 2125700100020 .APPARATUS CHECKED BY MEASURING TOTAL CROSS SECTION 2125700100021 OF CARBON. 2125700100022 DETECTOR (SCIN ) 2.5 CM DIAM, 2.5 MM THICK STILBENE 2125700100023 CRYSTAL. 2125700100024 (SOLST) SI DETECTOR TO MONITOR THE NEUTRON 2125700100025 FLUX BY COUNTING THE ASSOCIATED 2125700100026 ALPHA PARTICLES OF THE D-T REACTION. 2125700100027 STATUS (NDD ) DATA TAKEN FROM NEUDADA. 2125700100028 HISTORY (800116T) G.C. 2125700100029 (800129E) 2125700100030 CORRECTION .CORRECTIONS FOR BACKGROUND (LESS THAN 2 PC), 2125700100031 SINGLE INSCATTERING (10.5 PC FOR NA, 2.7 PC 2125700100032 FOR K, 2.4 PC FOR CA, 1.1 PC FOR C). DOUBLE 2125700100033 INSCATTERING ALSO ESTIMATED, IT IS ONLY 2125700100034 APPRECIABLE FOR NA (ABOUT 1 PC). 2125700100035 ERR-ANALYS .ERROR GIVEN INCLUDES STATISTICAL ERROR AND 2125700100036 ERRORS OF THE INSCATTERING CORRECTIONS. 2125700100037 ENDBIB 35 0 2125700100038 COMMON 2 3 2125700100039 EN EN-RSL 2125700100040 MEV MEV 2125700100041 1.4680E+01 2.3000E-01 2125700100042 ENDCOMMON 3 0 2125700100043 ENDSUBENT 42 0 2125700199999 SUBENT 21257002 19800129 00002125700200001 BIB 2 2 2125700200002 REACTION (6-C-12(N,TOT),,SIG) 2125700200003 STATUS (NDD ) DATA TAKEN FROM NEUDADA. 2125700200004 ENDBIB 2 0 2125700200005 NOCOMMON 0 0 2125700200006 DATA 2 1 2125700200007 DATA DATA-ERR 2125700200008 B B 2125700200009 1.3900E+00 2.0000E-02 2125700200010 ENDDATA 3 0 2125700200011 ENDSUBENT 10 0 2125700299999 SUBENT 21257003 19800129 00002125700300001 BIB 3 4 2125700300002 REACTION (11-NA-23(N,TOT),,SIG) 2125700300003 SAMPLE .LENGTH 18.4 CM, DIAM 5.67 CM, WEIGHT 457.36 2125700300004 GRAMS, SUPPLIED BY A.D.MACKAY. 2125700300005 STATUS (NDD ) DATA TAKEN FROM NEUDADA. 2125700300006 ENDBIB 4 0 2125700300007 NOCOMMON 0 0 2125700300008 DATA 2 1 2125700300009 DATA DATA-ERR 2125700300010 B B 2125700300011 1.7400E+00 3.0000E-02 2125700300012 ENDDATA 3 0 2125700300013 ENDSUBENT 12 0 2125700399999 SUBENT 21257004 19800129 00002125700400001 BIB 3 4 2125700400002 REACTION (19-K-0(N,TOT),,SIG) 2125700400003 SAMPLE .LENGTH 14.46 CM, DIAM 2.5 CM, WEIGHT 62.87 2125700400004 GRAMS, SUPPLIED BY FLUKA. 2125700400005 STATUS (NDD ) DATA TAKEN FROM NEUDADA. 2125700400006 ENDBIB 4 0 2125700400007 NOCOMMON 0 0 2125700400008 DATA 2 1 2125700400009 DATA DATA-ERR 2125700400010 B B 2125700400011 2.1400E+00 4.0000E-02 2125700400012 ENDDATA 3 0 2125700400013 ENDSUBENT 12 0 2125700499999 SUBENT 21257005 19800129 00002125700500001 BIB 3 4 2125700500002 REACTION (20-CA-0(N,TOT),,SIG) 2125700500003 SAMPLE .LENGTH 12.7 CM, DIAM 2.34 CM, WEIGHT 85.15 2125700500004 GRAMS, SUPPLIED BY A.D.MACKAY. 2125700500005 STATUS (NDD ) DATA TAKEN FROM NEUDADA. 2125700500006 ENDBIB 4 0 2125700500007 NOCOMMON 0 0 2125700500008 DATA 2 1 2125700500009 DATA DATA-ERR 2125700500010 B B 2125700500011 2.1700E+00 3.0000E-02 2125700500012 ENDDATA 3 0 2125700500013 ENDSUBENT 12 0 2125700599999 ENDENTRY 5 0 2125799999999