ENTRY 21678 19801104 00002167800000001 SUBENT 21678001 19801104 00002167800100001 BIB 13 37 2167800100002 INSTITUTE (2FR VNV) 2167800100003 REFERENCE (R,CEA-R-3808,,6907) TABLES. 2167800100004 (R,CEA-R-4047,,70) VALUE FOR C-12 REPEATED. 2167800100005 AUTHOR (A.BERTIN,F.BERTRAND,G.CLAYEUX,M.GAUTIER,G.NIERAT) 2167800100006 TITLE -CROSS SECTIONS FOR GAMMA-RAY PRODUCTION BY NEUTRONS 2167800100007 OF 5 MEV, 6.6 MEV, AND 8.7 MEV ON CARBON, ALUMINIUM, 2167800100008 IRON AND BISMUTH -. 2167800100009 FACILITY (VDG ) VAN DER GRAAFF, 12 MV, PULSED AT 2.5 MHZ,PULSE 2167800100010 WIDTH 10 NS. 2167800100011 INC-SOURCE (D-D ) DEUTERON BEAM ON DEUTERIUM GAS TARGET. 2167800100012 METHOD .DETECTION OF PROMPT GAMMAS. 2167800100013 DETECTOR (NAICR) NAI(TL) CRYSTAL SCINTILLATOR, PLACED AT 126 CM 2167800100014 FROM THE SAMPLE AT 90 DEGREES TO THE INCIDENT NEUTRON 2167800100015 BEAM. 2167800100016 DISCRIMINATION BETWEEN GAMMAS AND SCATTERED NEUTRONS 2167800100017 WAS MADE BY TIME OF FLIGHT SEPERATION OF THE PROMPT 2167800100018 GAMMAS AND THE DELAYED PEAK FROM NEUTRONS. 2167800100019 THE DETECTOR WAS CALIBRATED WITH STANDARD RADIOACTIVE 2167800100020 SOURCES. 2167800100021 MONITOR (1-H-1(N,EL)1-H-1,,SIG) ABSOLUTE NEUTRON FLUX MONITORED2167800100022 WITH A PROTON RECOIL TELESCOPE. 2167800100023 PART-DET (G ) PROMPT GAMMAS. 2167800100024 STATUS .TABLES IN CEA-R-3808. 2167800100025 HISTORY (801021C) 2167800100026 (801104E) 2167800100027 ERR-ANALYS (ERR-S) STATISTICAL ERROR ESTIMATED AS 2 PERCENT. 2167800100028 .UNCERTAINTIES IN SOLID ANGLE AND SAMPLE THICKNESS 2167800100029 ARE CONSIDERED NEGLIGIBLE. PRINCIPAL ERRORS COME 2167800100030 FROM THE GAMMA YIELD AND NEUTRON FLUX. 2167800100031 DETECTOR EFFICIENCY GIVES 5 PC BELOW 2MEV AND 15 PC 2167800100032 ABOVE 2 MEV. THE ERROR IN NEUTRON FLUX FROM THE 2167800100033 INDEPENDANT PROTON RECOIL MEASUREMENT IS GIVEN AS 2167800100034 ABOUT 20 PERCENT. 2167800100035 (ERR-T) TOTAL ERROR IS GIVEN IN TABLES. 2167800100036 .COMBINATION OF ALL ERRORS IN QUADRATURE GIVES 2167800100037 A TOTAL UNCERTAINTY OF 22 PERCENT BELOW 2 MEV, AND 26 2167800100038 PERCENT ABOVE 2 MEV. 2167800100039 ENDBIB 37 0 2167800100040 COMMON 2 3 2167800100041 ANG ERR-S 2167800100042 ADEG PER-CENT 2167800100043 9.0000E+01 2.0000E+00 2167800100044 ENDCOMMON 3 0 2167800100045 ENDSUBENT 44 0 2167800199999 SUBENT 21678002 19810611 00002167800200001 BIB 4 5 2167800200002 REACTION (6-C-12(N,INL)6-C-12,PAR,DA,G) 2167800200003 SAMPLE .CARBON DISC, 10 CM DIAMETER, 1 CM THICK. 2167800200004 STATUS .TABLE, FIGURE 20. 2167800200005 HISTORY (801021C) 2167800200006 (801104E) 2167800200007 ENDBIB 5 0 2167800200008 NOCOMMON 0 0 2167800200009 DATA 4 2 2167800200010 EN E DATA ERR-T 2167800200011 MEV MEV MB/SR MB/SR 2167800200012 6.6000E+00 4.4300E+00 1.7500E+01 4.5000E+00 2167800200013 8.7000E+00 4.4300E+00 1.5800E+01 4.1000E+00 2167800200014 ENDDATA 4 0 2167800200015 ENDSUBENT 14 0 2167800299999 SUBENT 21678003 19810611 00002167800300001 BIB 4 5 2167800300002 REACTION (13-AL-27(N,INL)13-AL-27,PAR,DA,G) 2167800300003 SAMPLE .ALUMINIUM DISC, 10 CM DIAMETER, 1 CM THICK. 2167800300004 STATUS .TABLE, FIGURE 20. 2167800300005 HISTORY (801021C) 2167800300006 (801104E) 2167800300007 ENDBIB 5 0 2167800300008 NOCOMMON 0 0 2167800300009 DATA 4 15 2167800300010 EN E DATA ERR-T 2167800300011 MEV MEV MB/SR MB/SR 2167800300012 5.0000E+00 8.4200E-01 7.1000E+00 1.6000E+00 2167800300013 5.0000E+00 1.0130E+00 1.6300E+01 3.6000E+00 2167800300014 5.0000E+00 1.7200E+00 1.0500E+01 2.3000E+00 2167800300015 5.0000E+00 2.2100E+00 1.9700E+01 5.1000E+00 2167800300016 5.0000E+00 3.0000E+00 1.3300E+01 3.5000E+00 2167800300017 6.6000E+00 8.4200E-01 6.2000E+00 1.4000E+00 2167800300018 6.6000E+00 1.0130E+00 1.7500E+01 3.8000E+00 2167800300019 6.6000E+00 1.7200E+00 1.3200E+01 2.9000E+00 2167800300020 6.6000E+00 2.2100E+00 1.8100E+01 4.7000E+00 2167800300021 6.6000E+00 3.0000E+00 1.1900E+01 3.1000E+00 2167800300022 8.7000E+00 8.4200E-01 4.2000E+00 9.0000E-01 2167800300023 8.7000E+00 1.0130E+00 1.3600E+01 3.0000E+00 2167800300024 8.7000E+00 1.7200E+00 8.9000E+00 2.0000E+00 2167800300025 8.7000E+00 2.2100E+00 1.7700E+01 4.6000E+00 2167800300026 8.7000E+00 3.0000E+00 1.0400E+01 2.7000E+00 2167800300027 ENDDATA 17 0 2167800300028 ENDSUBENT 27 0 2167800399999 SUBENT 21678004 19810611 00002167800400001 BIB 4 5 2167800400002 REACTION (26-FE-56(N,INL)26-FE-56,PAR,DA,G) 2167800400003 SAMPLE .IRON DISC, 10 CM DIAMETER, 1 CM THICK. 2167800400004 STATUS .TABLE, FIGURE 20. 2167800400005 HISTORY (801021C) 2167800400006 (801104E) 2167800400007 ENDBIB 5 0 2167800400008 NOCOMMON 0 0 2167800400009 DATA 4 18 2167800400010 EN E DATA ERR-T 2167800400011 MEV MEV MB/SR MB/SR 2167800400012 5.0000E+00 8.4200E-01 7.5100E+01 1.6000E+01 2167800400013 5.0000E+00 1.0300E+00 1.0000E+00 2.2000E-01 2167800400014 5.0000E+00 1.2400E+00 1.9800E+01 4.4000E+00 2167800400015 5.0000E+00 1.8100E+00 2.0000E+01 4.4000E+00 2167800400016 5.0000E+00 2.1000E+00 1.0400E+01 2.7000E+00 2167800400017 5.0000E+00 2.6000E+00 1.4200E+01 3.7000E+00 2167800400018 6.6000E+00 8.4200E-01 1.2390E+02 2.7200E+01 2167800400019 6.6000E+00 1.0300E+00 1.7000E+00 4.0000E-01 2167800400020 6.6000E+00 1.2400E+00 3.9800E+01 8.7000E+00 2167800400021 6.6000E+00 1.8100E+00 3.0800E+01 6.8000E+00 2167800400022 6.6000E+00 2.1000E+00 9.7000E+00 2.5000E+00 2167800400023 6.6000E+00 2.6000E+00 1.3200E+01 3.4000E+00 2167800400024 8.7000E+00 8.4200E-01 5.6600E+01 1.2400E+01 2167800400025 8.7000E+00 1.0300E+00 3.4000E+00 7.0000E-01 2167800400026 8.7000E+00 1.2400E+00 3.6300E+01 8.0000E+00 2167800400027 8.7000E+00 1.8100E+00 1.0300E+01 2.2000E+00 2167800400028 8.7000E+00 2.1000E+00 6.1000E+00 1.6000E+00 2167800400029 8.7000E+00 2.6000E+00 9.7000E+00 2.5000E+00 2167800400030 ENDDATA 20 0 2167800400031 ENDSUBENT 30 0 2167800499999 SUBENT 21678005 19810611 00002167800500001 BIB 4 5 2167800500002 REACTION (83-BI-209(N,INL)83-BI-209,PAR,DA,G) 2167800500003 SAMPLE .BISMUTH DISC, 10 CM DIAMETER, 0.5 CM THICK. 2167800500004 STATUS .TABLE, FIGURE 21. 2167800500005 HISTORY (801021C) 2167800500006 (801104E) 2167800500007 ENDBIB 5 0 2167800500008 NOCOMMON 0 0 2167800500009 DATA 4 6 2167800500010 EN E DATA ERR-T 2167800500011 MEV MEV MB/SR MB/SR 2167800500012 5.0000E+00 9.0000E-01 3.0600E+01 6.7000E+00 2167800500013 5.0000E+00 1.6050E+00 9.0100E+01 1.9800E+01 2167800500014 6.6000E+00 9.0000E-01 1.9600E+01 4.3000E+00 2167800500015 6.6000E+00 1.6050E+00 8.6300E+01 1.8900E+01 2167800500016 8.7000E+00 9.0000E-01 1.2300E+01 2.7000E+00 2167800500017 8.7000E+00 1.6050E+00 6.0300E+01 1.3200E+01 2167800500018 ENDDATA 8 0 2167800500019 ENDSUBENT 18 0 2167800599999 ENDENTRY 5 0 2167899999999