ENTRY 30447 20090311 31353044700000001 SUBENT 30447001 20090311 31353044700100001 BIB 11 23 3044700100002 INSTITUTE (3ISLNEG) 3044700100003 REFERENCE (R,INIS-MF-3663,83,197612) Short note 3044700100004 Trans.of Nucl.Soc.Israel,V4,Joint Annual Meeting,1976,3044700100005 Ben Gurion Univ.Negev,Dec 23 -24,1976. 3044700100006 AUTHOR (G.Shani) 3044700100007 TITLE (n,2n) cross-section measurement of light elements 3044700100008 with 15.1 MeV neutrons. 3044700100009 FACILITY (CCW,2GERJUL) 3044700100010 200 KV d-t generator with a current of 2 mA. 3044700100011 INC-SOURCE (D-T) 3044700100012 METHOD (ACTIV) 3044700100013 Except Na-22(t(1/2)=2.6yr), all products were short 3044700100014 life isotopes (of the order of 1sec), and a fast rabbit3044700100015 system between the neutron generator and the measure- 3044700100016 ment system was used. 3044700100017 PART-DET (AR) 3044700100018 511 keV gamma ray from beta+ decay. 3044700100019 STATUS (TABLE) Data from INIS-MF-3663,p.83. (1976) 3044700100020 (APRVD) Approved by G.Shani,78/06/21. 3044700100021 HISTORY (19780524C) KO. 3044700100022 (19780921U) KO.-'Aprvd' added.- 3044700100023 (20090310A) SD:Updated to new date formats,lower case. 3044700100024 ERR-ANALYS No further information. 3044700100025 ENDBIB 23 0 3044700100026 COMMON 1 3 3044700100027 EN 3044700100028 MEV 3044700100029 1.5100E+01 3044700100030 ENDCOMMON 3 0 3044700100031 ENDSUBENT 30 0 3044700199999 SUBENT 30447002 20090311 31353044700200001 BIB 5 6 3044700200002 REACTION (13-AL-27(N,2N)13-AL-26-M,,SIG) 3044700200003 SAMPLE Al(2)-O(3) powder. 3044700200004 20 sec irradiation. 3044700200005 DETECTOR (GELI) 3044700200006 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 3044700200007 DECAY-DATA (13-AL-26-M,6.3SEC) 3044700200008 ENDBIB 6 0 3044700200009 NOCOMMON 0 0 3044700200010 DATA 2 1 3044700200011 DATA DATA-ERR 3044700200012 MB MB 3044700200013 6.2000E-01 5.0000E-02 3044700200014 ENDDATA 3 0 3044700200015 ENDSUBENT 14 0 3044700299999 SUBENT 30447003 20090311 31353044700300001 BIB 6 6 3044700300002 REACTION (15-P-31(N,2N)15-P-30,,SIG) 3044700300003 SAMPLE P(2)-O(5) sample. Irradiation time of 2 min. 3044700300004 DETECTOR (GELI) 3044700300005 DECAY-DATA (15-P-30,2.5MIN) 3044700300006 MONITOR (15-P-31(N,A)13-AL-28,,SIG) 3044700300007 DECAY-MON (13-AL-28,2.3MIN,DG,1780.) 3044700300008 ENDBIB 6 0 3044700300009 NOCOMMON 0 0 3044700300010 DATA 2 1 3044700300011 DATA DATA-ERR 3044700300012 MB MB 3044700300013 1.0400E+01 1.0000E-01 3044700300014 ENDDATA 3 0 3044700300015 ENDSUBENT 14 0 3044700399999 SUBENT 30447004 20090311 31353044700400001 BIB 6 8 3044700400002 REACTION (16-S-32(N,2N)16-S-31,,SIG) 3044700400003 SAMPLE Sulphur powder. Irradiation time of 10 sec. 3044700400004 DETECTOR (GELI) 3044700400005 MONITOR (16-S-32(N,P)15-P-32,,SIG) 3044700400006 Beta- activity was measured with a gas flow detector. 3044700400007 DECAY-DATA (16-S-31,2.6SEC) 3044700400008 COMMENT Due to high background, the result has a high degree of3044700400009 inaccuracy 3044700400010 ENDBIB 8 0 3044700400011 NOCOMMON 0 0 3044700400012 DATA 1 1 3044700400013 DATA 3044700400014 MB 3044700400015 7.1000E-02 3044700400016 ENDDATA 3 0 3044700400017 ENDSUBENT 16 0 3044700499999 SUBENT 30447005 20090311 31353044700500001 BIB 7 13 3044700500002 REACTION (19-K-39(N,2N)19-K-38-G,,SIG) 3044700500003 SAMPLE Ki. 3044700500004 DETECTOR (GELI) 3044700500005 DECAY-DATA (19-K-38-G,7.7MIN) 3044700500006 MONITOR (19-K-41(N,P)18-AR-41,,SIG) 3044700500007 DECAY-MON (18-AR-41,,DG,1293.) 3044700500008 COMMENT K-38 has 2 isomers, the excited level with t(1/2)=0.95 3044700500009 sec and the ground state with t(1/2)= 7.7 min. 3044700500010 In order to measure the '0.95 sec' cross-section 3044700500011 the analyzer was counting while the sample was travell-3044700500012 ing between the neutron generator and the detector. 3044700500013 However, due to high background, it was impossible to 3044700500014 get reasonably good results for the excited level. 3044700500015 ENDBIB 13 0 3044700500016 NOCOMMON 0 0 3044700500017 DATA 2 1 3044700500018 DATA DATA-ERR 3044700500019 MB MB 3044700500020 6.3000E+00 1.0000E-01 3044700500021 ENDDATA 3 0 3044700500022 ENDSUBENT 21 0 3044700599999 SUBENT 30447006 20090311 31353044700600001 BIB 6 9 3044700600002 REACTION (11-NA-23(N,2N)11-NA-22,,SIG) 3044700600003 SAMPLE A ''sandwich'' combined of two layers of As(2)-O(3) 3044700600004 with a layer of NaF in between. 3044700600005 DETECTOR (NAICR) 3044700600006 Two 5inch NaI detectors in a coincidence system which 3044700600007 was calibrated with standard Na-22 sources. 3044700600008 DECAY-DATA (11-NA-22,2.6YR) 3044700600009 MONITOR (33-AS-75(N,2N)33-AS-74,,SIG) 3044700600010 DECAY-MON (33-AS-74,17.8D) 3044700600011 ENDBIB 9 0 3044700600012 NOCOMMON 0 0 3044700600013 DATA 2 1 3044700600014 DATA DATA-ERR 3044700600015 MB MB 3044700600016 5.0000E+01 3.0000E+00 3044700600017 ENDDATA 3 0 3044700600018 ENDSUBENT 17 0 3044700699999 ENDENTRY 6 0 3044799999999