ENTRY 31592 20070213 31223159200000001 SUBENT 31592001 20070213 31223159200100001 BIB 13 46 3159200100002 TITLE Production of monoenergetic MeV-range neutrons by 3159200100003 3H(p,n)3He reaction 3159200100004 AUTHOR (G.D.Kim,H.J.Woo,J.K.Kim,T.K.Yang,J.H.Chang) 3159200100005 INSTITUTE (3KORKRM,3KORKAE) 3159200100006 (3KORKOR)Ion Beam Application Group, Korea Institute of3159200100007 Geoscience and Mineral Resources, Daejon,305-350, Korea3159200100008 REFERENCE (J,JRN,271,541,2007) 3159200100009 FACILITY (VDGT,3KORKRM) KIGAM 1.7 MV tandem accelerator with 3159200100010 the source of negative ion by cesium sputtering (SNICS)3159200100011 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3159200100012 INC-SOURCE (P-T) The Ti-3H thin film target of this experiment 3159200100013 was provided by a company (SODERN) in France. The 3159200100014 substrate of this target was Cu with a thickness of 3159200100015 1.2 mm. The first layer was Ti with an areal density 3159200100016 between 200 mu-g/cm2 (2.5.10**18 atoms/cm2) and 300 3159200100017 mu-g/cm2 (3.8.10**18 atoms/cm2). Ti was impregnated 3159200100018 with tritium of 4.6.10**18 atoms/cm2. 3159200100019 The control of the beam energy and the stability for 3159200100020 terminal voltage was performed by the resonance of 3159200100021 991+-1 keV in 27Al(p,gamma) and that of 3047+-1 keV 3159200100022 in 16O(alpha,alpha). 3159200100023 SAMPLE The shape of Fe sample with a purity of 98% was a 3159200100024 disk with a diameter of 5 cm and a thickness of 0.3 cm.3159200100025 METHOD (PHD,PSD,GSPEC) 3159200100026 (FLUX) The flux in the beam direction was 3159200100027 determined to be 3.76x10**7 n/s/sr. The neutron flux 3159200100028 was measured by fast neutron activation using Au 3159200100029 sample, with purity of 99.99%, a metal disk with a 3159200100030 diameter of 5 cm and a thickness of 0.3 cm. 3159200100031 DETECTOR (SCIN) The pulse-height spectrum and the pulse-shape 3159200100032 spectrum of the produced neutron were measured by 3159200100033 2"x2" BC-501 liquid scintillation detector. 3159200100034 Other BC-501 liquid scintillation detector is used as 3159200100035 a neutron monitor. 3159200100036 (HPGE) A 2"x2" HP Ge detector was used as a detector 3159200100037 of gamma-rays. 3159200100038 ERR-ANALYS (ERR-T) statistical errors of gamma-counts from samples3159200100039 and neutron-counts of BC-501 detectors 3159200100040 and also systematic errors in the counting efficiency 3159200100041 for HP Ge detector and the uncertainty of areal 3159200100042 density of samples were considered in calculating 3159200100043 neutron capture cross section and neutron total cross 3159200100044 section. 3159200100045 STATUS (TABLE) Data were received from Dr. G.D.Kim 3159200100046 (APRVD) Entry approved by Dr. G.D.Kim 3159200100047 HISTORY (20070213C) 3159200100048 ENDBIB 46 0 3159200100049 NOCOMMON 0 0 3159200100050 ENDSUBENT 49 0 3159200199999 SUBENT 31592002 20070213 31223159200200001 BIB 1 1 3159200200002 REACTION (26-FE-0(N,TOT),,SIG) 3159200200003 ENDBIB 1 0 3159200200004 NOCOMMON 0 0 3159200200005 DATA 3 6 3159200200006 EN DATA ERR-T 3159200200007 MEV B B 3159200200008 1.1000 2.5300 0.1400 3159200200009 1.2000 2.2600 0.0900 3159200200010 1.4000 2.6600 0.0800 3159200200011 1.6000 2.5800 0.1200 3159200200012 1.8000 2.5500 0.1300 3159200200013 2.0000 2.9700 0.0900 3159200200014 ENDDATA 8 0 3159200200015 ENDSUBENT 14 0 3159200299999 ENDENTRY 2 0 3159299999999