ENTRY 21756 20190326 22782175600000001 SUBENT 21756001 20190326 22782175600100001 BIB 12 27 2175600100002 INSTITUTE (2AUSIRK) 2175600100003 REFERENCE (J,ZP/A,302,271,1981) 2175600100004 AUTHOR (H.Friedmann) 2175600100005 TITLE Precision measurement of the total cross section for 2175600100006 the reaction Al-27(n,alpha)Na-24 relative to the cross2175600100007 section of Au-197(n,2n)Au-196 in the energy range 2175600100008 from 13.70 to 14.42 MeV. - 2175600100009 FACILITY (CCW,2AUSIRK) .Fast neutron generator of IRK. 2175600100010 INC-SOURCE (D-T) .The deuteron energy = 200 KeV. 2175600100011 SAMPLE . Al sample = 8 * 16 mm, 0.18 grams, 2175600100012 . Au sample = 2.5 grams. 2175600100013 Each aluminium sample was irradiated between two 2175600100014 samples of gold. The size of all samples was 8 x 16mm, 2175600100015 the masses of the aluminium samples were about 0.18 g, 2175600100016 the masses of the gold samples were approximately 2.5g.2175600100017 METHOD (ACTIV) 2175600100018 DETECTOR (NAICR) 5. x 5. inch (127 x 127. mm) well type 2175600100019 NaI(Tl) detector. 2175600100020 STATUS (TABLE) Table 1 of Z.Phys.A302(1981)271 2175600100021 ERR-ANALYS (ERR-S,,0.2) Statistical error = less than 0.2%, 2175600100022 (ERR-1,,0.02) impurities = less than 0.02%. 2175600100023 HISTORY (19811127C) T.N 2175600100024 (20070926A) Date and units in SAN 002 are corrected-SM 2175600100025 (20070927U) Last corrections have been done. 2175600100026 (20140818A) SD: Important corrections in Subents 2,3,4.2175600100027 (20190326A) SD: MONIT-ERR correction in Subent 003. 2175600100028 Small corrections in all Subents. 2175600100029 ENDBIB 27 0 2175600100030 COMMON 1 3 2175600100031 EN-ERR 2175600100032 MEV 2175600100033 0.03 2175600100034 ENDCOMMON 3 0 2175600100035 ENDSUBENT 34 0 2175600199999 SUBENT 21756002 20190326 22782175600200001 BIB 6 14 2175600200002 REACTION ((13-AL-27(N,A)11-NA-24,,SIG)// 2175600200003 (13-AL-27(N,A)11-NA-24,,SIG)) 2175600200004 ANALYSIS The relative shape of the excitation function for 2175600200005 27Al(n,alpha)24Na is given if one assumes a linear 2175600200006 increase of 9% (see MONIT-REF) for the cross section 2175600200007 of 197Au(n,2n)a96Au between 13.6 and 14.6 MeV 2175600200008 MONITOR ((79-AU-197(N,2N)79-AU-196,,SIG)// 2175600200009 (79-AU-197(N,2N)79-AU-196,,SIG)) 2175600200010 MONIT-REF (20815025,H.K.Vonach+,C,68WASH,2,885,1968) 2175600200011 ERR-ANALYS (ERR-T) One standard deviation. 2175600200012 HISTORY (20070926A) Data heading ratio changed to data 2175600200013 (20140818A) SD: Reaction code was changed (denominator:2175600200014 Au-197(n,2n) -> Al-27(n,alpha)). MONITOR was added. 2175600200015 (20190326A) SD: EN-RSL -> EN-RSL-FW 2175600200016 ENDBIB 14 0 2175600200017 COMMON 2 3 2175600200018 EN-DN ERR-T 2175600200019 MEV PER-CENT 2175600200020 14.42 0.3 2175600200021 ENDCOMMON 3 0 2175600200022 DATA 3 20 2175600200023 EN-NM EN-RSL-FW DATA 2175600200024 MEV MEV NO-DIM 2175600200025 13.70 0.08 1.0904 2175600200026 13.71 0.08 1.0726 2175600200027 13.76 0.07 1.0781 2175600200028 13.79 0.07 1.0684 2175600200029 13.83 0.06 1.0617 2175600200030 13.86 0.06 1.0612 2175600200031 13.90 0.05 1.0701 2175600200032 13.94 0.05 1.0637 2175600200033 13.99 0.04 1.0632 2175600200034 14.03 0.04 1.0644 2175600200035 14.07 0.04 1.0646 2175600200036 14.12 0.05 1.0653 2175600200037 14.16 0.05 1.0664 2175600200038 14.20 0.06 1.0568 2175600200039 14.24 0.07 1.0367 2175600200040 14.28 0.08 1.0351 2175600200041 14.32 0.09 1.0297 2175600200042 14.35 0.10 1.0199 2175600200043 14.39 0.12 1.0187 2175600200044 14.42 0.13 1.0000 2175600200045 ENDDATA 22 0 2175600200046 ENDSUBENT 45 0 2175600299999 SUBENT 21756003 20190326 22782175600300001 BIB 7 15 2175600300002 REACTION (13-AL-27(N,A)11-NA-24,,SIG) 2175600300003 ANALYSIS CS obtained by the measured ratio and the slope 2175600300004 parameter (0.9%) of the 197Au(n,2n)196Au reaction cross2175600300005 section between 13.6 and 14.6 MeV 2175600300006 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 2175600300007 MONIT-REF (20111002,H.Vonach+,J,ZP,237,155,1970) Value given in 2175600300008 the article was 117.0+-0.8 mb (3-sigma error) 2175600300009 COMMENT Compiler gave 1-sigma error in MONIT-ERR. 2175600300010 STATUS (DEP,21756002) 2175600300011 (COREL,21756004) Normalized to four absolute 2175600300012 absolute measurements 2175600300013 HISTORY (20140818A) SD: MONITOR reaction was corrected: 2175600300014 Au-197(n,2n) -> Al-27(n,alpha). 2175600300015 (20190326A) SD: Value in MONIT-ERR was divided by three2175600300016 EN-RSL -> EN-RSL-FW. 2175600300017 ENDBIB 15 0 2175600300018 COMMON 3 3 2175600300019 EN-NRM MONIT MONIT-ERR 2175600300020 MEV MB MB 2175600300021 14.43 117.0 0.27 2175600300022 ENDCOMMON 3 0 2175600300023 DATA 3 20 2175600300024 EN EN-RSL-FW DATA 2175600300025 MEV MEV MB 2175600300026 13.70 0.08 127.6 2175600300027 13.71 0.08 125.5 2175600300028 13.76 0.07 126.1 2175600300029 13.79 0.07 125.0 2175600300030 13.83 0.06 124.2 2175600300031 13.86 0.06 124.2 2175600300032 13.90 0.05 125.2 2175600300033 13.94 0.05 124.4 2175600300034 13.99 0.04 124.4 2175600300035 14.03 0.04 124.5 2175600300036 14.07 0.04 124.6 2175600300037 14.12 0.05 124.6 2175600300038 14.16 0.05 124.8 2175600300039 14.20 0.06 123.6 2175600300040 14.24 0.07 121.3 2175600300041 14.28 0.08 121.1 2175600300042 14.32 0.09 120.5 2175600300043 14.35 0.10 119.3 2175600300044 14.39 0.12 119.2 2175600300045 14.42 0.13 117.0 2175600300046 ENDDATA 22 0 2175600300047 ENDSUBENT 46 0 2175600399999 SUBENT 21756004 20190326 22782175600400001 BIB 7 18 2175600400002 REACTION (13-AL-27(N,A)11-NA-24,,SIG) 2175600400003 ANALYSIS CS obtained by the measured ratio and the slope 2175600400004 parameter (9%) of the 197Au(n,2n)196Au reaction cross 2175600400005 section between 13.6 and 14.6 MeV 2175600400006 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 2175600400007 .Al-27(n,alpha) cross section was normalized to values 2175600400008 mentioned in MONIT-REF. 2175600400009 MONIT-REF (20111002,H.Vonach+,J,ZP,237,155,1970) 2175600400010 (,G.Winkler,W,WINKLER,1981) personal communication. 2175600400011 (20798002,J.C.Robertson+,J,JNE,27,139,1973) 2175600400012 (20867006,T.B.Ryves+,J,JP/G,4,1783,1978) 2175600400013 ERR-ANALYS (ERR-T) One standard deviation. 2175600400014 STATUS (DEP,21756002) 2175600400015 (COREL,21756003) Normalized to one absolute measurement2175600400016 117.0+/-0.8 mb at 14.43 MeV 2175600400017 HISTORY (20140818A) SD: MONITOR reaction was corrected: 2175600400018 Au-197(n,2n) -> Al-27(n,alpha). 2175600400019 (20190326A) SD: EN-RSL -> EN-RSL-FW. 2175600400020 ENDBIB 18 0 2175600400021 COMMON 1 3 2175600400022 ERR-T 2175600400023 PER-CENT 2175600400024 0.7 2175600400025 ENDCOMMON 3 0 2175600400026 DATA 3 20 2175600400027 EN EN-RSL-FW DATA 2175600400028 MEV MEV MB 2175600400029 13.70 0.08 126.7 2175600400030 13.71 0.08 124.6 2175600400031 13.76 0.07 125.2 2175600400032 13.79 0.07 124.1 2175600400033 13.83 0.06 123.3 2175600400034 13.86 0.06 123.3 2175600400035 13.90 0.05 124.3 2175600400036 13.94 0.05 123.5 2175600400037 13.99 0.04 123.5 2175600400038 14.03 0.04 123.6 2175600400039 14.07 0.04 123.7 2175600400040 14.12 0.05 123.7 2175600400041 14.16 0.05 122.9 2175600400042 14.20 0.06 122.7 2175600400043 14.24 0.07 120.5 2175600400044 14.28 0.08 120.3 2175600400045 14.32 0.09 119.6 2175600400046 14.35 0.10 118.5 2175600400047 14.39 0.12 118.3 2175600400048 14.42 0.13 116.2 2175600400049 ENDDATA 22 0 2175600400050 ENDSUBENT 49 0 2175600499999 ENDENTRY 4 0 2175699999999