ENTRY 32764 20181120 31873276400000001 SUBENT 32764001 20181120 31873276400100001 BIB 12 32 3276400100002 TITLE Measurement of the 27Al(n,2n)26Al cross section 3276400100003 using accelerator mass spectrometry 3276400100004 AUTHOR (Zhao Qiang,Lu Xiang-Yang,Guo Zhi-Yu,Shi Zhao-Min, 3276400100005 Wang Jian-Jun,Liu Ke-Xin,Li Bin,Li Kun,Chen Jia-Er, 3276400100006 Lu Han-Lin) 3276400100007 INSTITUTE (3CPRBJG,3CPRAEP) 3276400100008 REFERENCE (J,CPL,15,8,1998) 3276400100009 FACILITY (NGEN,3CPRLNZ) 3276400100010 INC-SOURCE The average neutron flux was (3.95+-0.20)E14 per cm2. 3276400100011 SAMPLE The aluminum oxide powder samples with a purity 3276400100012 99.999% were packed into a disk with 10 mm diameter 3276400100013 and 2 mm thick. 3276400100014 DETECTOR DeltaE-E gas detector. 3276400100015 METHOD (ACTIV) The samples were irradiated by monoenergetic 3276400100016 neutron beam for about 20 days. 3276400100017 (AMS) The irradiated aluminum oxide powder was 3276400100018 mounted in sample holders of the sputter negative ion 3276400100019 source without any chemical pretreatment. The 3276400100020 negative ions of aluminum were produced, then 3276400100021 injected into the EN tandem accelerator after 3276400100022 selection by the 90 deg. injection magnet, converted 3276400100023 to positive ions by the argon-gas stripper. These 3276400100024 positive ions were accelerated further and analyzed by 3276400100025 the 90 deg. high energy analyzer magnet. The 27Al3+ 3276400100026 current was monitored by a side Faraday cup. Only 3276400100027 26Al3+ ions were transported through the successive 3276400100028 45 deg. deflecting magnet and 20 deg. electrostatic 3276400100029 deflector to the gas detector. 3276400100030 ERR-ANALYS (DATA-ERR) No information on source of uncertainty 3276400100031 STATUS (CURVE) Data were digitalized from Fig.2 of 3276400100032 Chin.Phys.Lett., Vol.15, No.1(1998)8. 3276400100033 HISTORY (20181120C) Jimin Wang 3276400100034 ENDBIB 32 0 3276400100035 NOCOMMON 0 0 3276400100036 ENDSUBENT 35 0 3276400199999 SUBENT 32764002 20181120 31873276400200001 BIB 1 1 3276400200002 REACTION (13-AL-27(N,2N)13-AL-26-G,,SIG) 3276400200003 ENDBIB 1 0 3276400200004 NOCOMMON 0 0 3276400200005 DATA 3 2 3276400200006 EN DATA DATA-ERR 3276400200007 MEV MB MB 3276400200008 14.8 54.0 4.3 3276400200009 14.9 77.5 5.3 3276400200010 ENDDATA 4 0 3276400200011 ENDSUBENT 10 0 3276400299999 ENDENTRY 2 0 3276499999999