ENTRY 20218 19831121 00002021800000001 SUBENT 20218001 19831121 00002021800100001 BIB 13 25 2021800100002 INSTITUTE (2NEDUTR) 2021800100003 REFERENCE (J,NP/A,145,449,7004) 2021800100004 AUTHOR (A.M.J.SPITS, A.M.F.OP DEN KAMP, H.GRUPPELAAR) 2021800100005 TITLE -GAMMA RAYS FROM THERMAL-NEUTRON CAPTURE IN NATURAL AND2021800100006 SI-28 ENRICHED SILICON.- 2021800100007 FACILITY .HIGH FLUX REACTOR AT PETTEN. 2021800100008 INC-SOURCE (REAC ) REACTOR, THERMAL-NEUTRON FLUX AT THE TARGET 2021800100009 (RADIAL BEAM TUBE) IS ABOUT 3.E+6 N/CM2/SEC. 2021800100010 SAMPLE .SILICON DIOXIDE 99.2 PER CENT ENRICHED SI-28 2021800100011 AND, NATURAL SILICON POWDER AND SILICON DIOXIDE. 2021800100012 DETECTOR (GELI ) GE(LI) DETECTOR 23 CM3, COAXIAL. 2021800100013 .OVERALL RESOLUTION (MEASURING TIME 3 DAYS) IS 3.2 KEV 2021800100014 FOR 1.33 MEV CO-60 LINE AND 8 KEV FOR 7.6 MEV FE-57 2021800100015 DOUBLET. 2021800100016 MONITOR (14-SI-28(N,G)14-SI-29,,SPC) 2021800100017 .ENERGY CALIBRATION BY MANY CALIBRATION POINTS. 2021800100018 COMMENT .PRESENT WORK IS BOTH CONFIRMATION AND EXTENSION OF 2021800100019 PREVIOUSLY PUBLISHED DATA. AND MORE ACCURATE VALUES OF2021800100020 EXCITATION ENERGIES OF SI-29 LEVELS. 2021800100021 STATUS .TAKEN FROM NUCL.PHYS.,A145(1970)449. 2021800100022 HISTORY (711104C) 2021800100023 (740521E) 2021800100024 ERR-ANALYS .GAMMA ENERGY ERRORS ENLARGED WITH SYSTEMATIC ERROR 2021800100025 TO ACCOUNT FOR RECOIL CORRECTION NOT DONE. 2021800100026 .NO FURTHER INFORMATION FOR ERROR ON INTENSITY. 2021800100027 ENDBIB 25 0 2021800100028 NOCOMMON 0 0 2021800100029 ENDSUBENT 28 0 2021800199999 SUBENT 20218002 19831121 00002021800200001 BIB 4 5 2021800200002 REACTION (14-SI-0(N,G),,SPC,,SPA) 2021800200003 PART-DET (G ) GAMMAS. 2021800200004 COMMENT .COULD NOT BE ATTRIBUTED TO AN ISOTOPE. 2021800200005 HISTORY (740428C) 2021800200006 (740521E) 2021800200007 ENDBIB 5 0 2021800200008 COMMON 1 3 2021800200009 EN-DUMMY 2021800200010 MEV 2021800200011 2.5300E-08 2021800200012 ENDCOMMON 3 0 2021800200013 DATA 3 3 2021800200014 E E-ERR DATA-APRX 2021800200015 MEV MEV GAM/100N 2021800200016 1.3054E+00 3.0000E-01 1.0000E-01 2021800200017 2.4462E+00 1.5000E+00 3.0000E-01 2021800200018 4.5290E+00 2.0000E+00 1.0000E-01 2021800200019 ENDDATA 5 0 2021800200020 ENDSUBENT 19 0 2021800299999 SUBENT 20218003 19831121 00002021800300001 BIB 4 7 2021800300002 REACTION (14-SI-28(N,G)14-SI-29,,SPC,,SPA) 2021800300003 PART-DET (G ) GAMMAS. 2021800300004 COMMENT .GAMMA ENERGY 1779.1 +- 0.3 KEV, INTENSITY 2.8 +- 0.7 2021800300005 IS ATTRIBUTED TO SI-28(N,N G) BY FAST NEUTRONS OF 2021800300006 THE REACTOR. 2021800300007 HISTORY (711104C) 2021800300008 (740521E) 2021800300009 ENDBIB 7 0 2021800300010 COMMON 1 3 2021800300011 EN-DUMMY 2021800300012 MEV 2021800300013 2.5300E-08 2021800300014 ENDCOMMON 3 0 2021800300015 DATA 5 26 2021800300016 E E-ERR DATA DATA-ERR DATA-APRX 2021800300017 MEV MEV GAM/100N GAM/100N GAM/100N 2021800300018 1.0390E+00 3.0000E-03 3.0000E-01 2.0000E-01 2021800300019 1.1526E+00 2.0000E-04 5.0000E-01 2.0000E-01 2021800300020 1.2734E+00 2.0000E-04 1.8000E+01 2.0000E+00 2021800300021 1.4157E+00 2.0000E-04 1.0000E-01 2021800300022 1.4462E+00 3.0000E-04 7.0000E-01 3.0000E-01 2021800300023 1.5406E+00 5.0000E-04 5.0000E-01 2.0000E-01 2021800300024 1.5654E+00 4.0000E-04 4.0000E-01 2.0000E-01 2021800300025 1.7936E+00 2.0000E-04 6.0000E-01 2.0000E-01 2021800300026 1.8672E+00 3.0000E-04 6.0000E-01 2.0000E-01 2021800300027 2.0282E+00 5.0000E-04 5.0000E-01 2.0000E-01 2021800300028 2.0930E+00 3.0000E-04 2.1000E+01 2.0000E+00 2021800300029 2.4260E+00 4.0000E-04 3.2000E+00 8.0000E-01 2021800300030 2.5080E+00 1.0000E-03 1.0000E-01 2021800300031 2.9064E+00 1.0000E-03 1.0000E-01 2021800300032 3.5391E+00 3.0000E-04 6.9000E+01 3.0000E+00 2021800300033 3.6611E+00 4.0000E-04 4.0000E+00 4.0000E-01 2021800300034 3.9547E+00 5.0000E-04 2.1000E+00 2.0000E-01 2021800300035 4.8405E+00 5.0000E-04 2.0000E-01 2021800300036 4.9343E+00 4.0000E-04 6.5000E+01 2.0000E+00 2021800300037 5.1071E+00 6.0000E-04 3.9000E+00 3.0000E-01 2021800300038 6.0469E+00 7.0000E-04 5.0000E-01 2.0000E-01 2021800300039 6.3806E+00 7.0000E-04 1.2000E+01 1.0000E+00 2021800300040 6.4459E+00 1.2000E-03 1.0000E-01 2021800300041 7.0570E+00 2.0000E-03 1.0000E-01 2021800300042 7.2005E+00 8.0000E-04 8.0000E+00 1.0000E+00 2021800300043 8.4741E+00 1.2000E-03 2.4000E+00 3.0000E-01 2021800300044 ENDDATA 28 0 2021800300045 ENDSUBENT 44 0 2021800399999 SUBENT 20218004 19831121 00002021800400001 BIB 5 6 2021800400002 REACTION (14-SI-29(N,G)14-SI-30,,SPC,,SPA) 2021800400003 PART-DET (G ) GAMMAS. 2021800400004 COMMENT .GAMMA RAYS FROM THERMAL-NEUTRON CAPTURE IN NATURAL SI.2021800400005 FLAG (1.) PROBABLY FROM SI-29(N,G). 2021800400006 HISTORY (711104C) 2021800400007 (740521E) 2021800400008 ENDBIB 6 0 2021800400009 COMMON 1 3 2021800400010 EN-DUMMY 2021800400011 MEV 2021800400012 2.5300E-08 2021800400013 ENDCOMMON 3 0 2021800400014 DATA 7 13 2021800400015 E E-ERR DATA DATA-ERR DATA-MAX DATA-APRX 2021800400016 FLAG 2021800400017 MEV MEV GAM/100N GAM/100N GAM/100N GAM/100N 2021800400018 NO-DIM 2021800400019 1.2625E+00 1.0000E-03 3.0000E-01 2021800400020 1.0000E+00 2021800400021 1.5345E+00 2.0000E-04 3.0000E-01 2.0000E-01 2021800400022 1.0000E+00 2021800400023 1.5521E+00 5.0000E-04 3.0000E-01 2.0000E-01 2021800400024 1.0000E+00 2021800400025 2.2353E+00 3.0000E-04 1.6000E+00 2.0000E-01 2021800400026 2021800400027 3.1020E+00 4.0000E-04 1.4000E+00 4.0000E-01 2021800400028 2021800400029 3.7700E+00 2.0000E-03 1.0000E-012021800400030 1.0000E+00 2021800400031 3.8653E+00 4.0000E-04 1.1000E+00 2.0000E-01 2021800400032 2021800400033 5.2720E+00 7.0000E-04 1.0000E+00 5.0000E-01 2021800400034 2021800400035 6.4200E+00 2.0000E-03 2.0000E-012021800400036 1.0000E+00 2021800400037 6.7442E+00 1.0000E-03 1.1000E+00 2.0000E-01 2021800400038 2021800400039 7.1130E+00 2.0000E-03 2.0000E-012021800400040 1.0000E+00 2021800400041 8.3730E+00 3.0000E-03 1.0000E-012021800400042 2021800400043 1.0610E+01 8.0000E-04 6.0000E-01 3.0000E-01 2021800400044 2021800400045 ENDDATA 30 0 2021800400046 ENDSUBENT 45 0 2021800499999 SUBENT 20218005 19831121 00002021800500001 BIB 4 5 2021800500002 REACTION (14-SI-30(N,G)14-SI-31,,SPC,,SPA) 2021800500003 PART-DET (G ) GAMMAS. 2021800500004 FLAG (1.) PROBABLY FROM SI-30(N,G). 2021800500005 HISTORY (711104C) 2021800500006 (740521E) 2021800500007 ENDBIB 5 0 2021800500008 COMMON 1 3 2021800500009 EN-DUMMY 2021800500010 MEV 2021800500011 2.5300E-08 2021800500012 ENDCOMMON 3 0 2021800500013 DATA 6 5 2021800500014 E E-ERR DATA DATA-ERR DATA-APRX FLAG 2021800500015 MEV MEV GAM/100N GAM/100N GAM/100N NO-DIM 2021800500016 7.5240E-01 2.0000E-04 2.1000E+00 3.0000E-01 2021800500017 1.6952E+00 5.0000E-04 2.0000E-01 1.0000E+002021800500018 2.2052E+00 3.0000E-04 2.0000E-01 1.0000E+002021800500019 2.7808E+00 4.0000E-04 1.6000E+00 3.0000E-01 2021800500020 3.0543E+00 5.0000E-04 1.4000E+00 2.0000E-01 2021800500021 ENDDATA 7 0 2021800500022 ENDSUBENT 21 0 2021800599999 ENDENTRY 5 0 2021899999999