/* 2012-05-18 File is generated by HENDEL. */ \\BIB,1; D#=D2342; TITLE=/ Photoneutron cross sections for Au revisited: measurements with laser compton scattering gamma-rays and data reduction by a least-squares method /; PURPOSE=/ Photoneutron cross section measurement were made for Au in the entire energy range of the (g,n) channel based on a direct neutron counting with quasi-monochromatic gamma-rays with LCS photons. /; ATH=(O.ITOH'1', H.UTSUNOMIYA'1', H.AKIMUNE'1', T.KONDO'1', M.KAMATA'1', T.YAMAGATA'1', H.TOYOKAWA'2', H.HARADA'3', F.KITATANI'3', S.GOKO'3', C.NAIR'4', YIU-WING LUI'5'); INST-ATH=(2JPNKON'1', 2JPNAIS'2', 2JPNJAE'3', 2GERZFK'4', 1USATAM'5'); /* '1' Department of Physics */ /* '4' Institut feur Strahlenphysik */ /* '5' Cyclotron Institute */ REF=NST; VLP=48(2011)834; RCTS=197AU(GAMMA,N)196AU; PHQS=XSECTN; \\EXP,1; /* 2011-06-18 : Compiled+Checked, Ayano Makinaga */ PHQ=XSECTN; ENR=NAT; CHM=ELM'6'; /* '6' 99.95 % */ PHYS-FORM=SLD; THK-TGT=XMG/CM**2'7'; /* '7' Two disks of 197Au with a diameter of 20 mm were used. 4 mm thickness for the low-energy region. 2 mm thickness for the high-energy region. */ POL-TGT=0%; ALGN-TGT=0%; ACC='8'; /* '8' To store electron beam from 537.0 to 790.9 MeV */ INST-ACC=2JPNAIS'9'; /* '9' Tsukuba Electron Ring for Acceleration and Storage (TERAS) */ INC-ENGY-LAB-RANGE=8.15[14.50MEV; POL-PRJ=0%; ION-SOURCE=/ Laser Compton Scattered Photons /; DET-PARTCL=(N,GAMMA); COINC=NO; ANT-COINC=NO; DET-SYS=(NAI'10',HPGE'11',PROP-CNTR'12'); /* '10' To measure the intensity of the LCS gamma-ray */ /* '11' To measure the energy distribution of the LCS gamma-ray with the high-energy photon spectrometer */ /* '12' To detect neutron */ /* Experimental Method: - Ring ratio method (To determine average neutron energies. 20 3He proportional counters coaxially embedded in polyethylene moderator at distance of 3.8, 7.0 and 10.0 cm from the beam axis.) */ /* Analysis: - Least squares fit to GDR function folded with LCS spectrum shape */ \\DATA,1; SYS-ERR=(4.4%'13',3.0%'14',3.2%'15'); /* '13' Total systematic error */ /* '14' Systematic error of NaI detector */ /* '15' Systematic error of neutron detector efficiency */ \\EXP,1; RCT=197AU(GAMMA,N)196AU; \\DATA,1; \DATA; INC-ENGY-LAB SIGMA DELTA-SIGMA'16' DELTA-SIGMA'17' (MEV) (MB) (MB) (MB) 8.08 16.55 +-9.48 +-0.73 8.09 12.83 +-2.59 +-0.56 8.25 27.47 +-0.52 +-1.21 8.42 34.51 +-0.47 +-1.52 8.60 35.55 +-0.38 +-1.56 8.75 38.31 +-1.90 +-1.69 8.88 41.33 +-0.42 +-1.82 8.94 43.23 +-0.38 +-1.90 9.01 44.83 +-0.49 +-1.97 9.10 45.23 +-1.81 +-1.99 9.10 47.62 +-0.44 +-2.10 9.15 48.34 +-0.58 +-2.13 9.22 51.01 +-0.59 +-2.24 9.36 51.09 +-0.99 +-2.25 9.42 57.39 +-1.59 +-2.52 9.53 65.75 +-1.10 +-2.89 9.64 60.14 +-1.78 +-2.65 9.81 69.57 +-1.08 +-3.06 10.01 70.20 +-1.21 +-3.09 10.35 90.31 +-1.85 +-3.97 10.55 104.74 +-1.47 +-4.61 10.97 155.06 +-2.06 +-6.82 11.38 201.49 +-2.24 +-8.87 11.75 253.32 +-2.60 +-11.15 11.89 266.40 +-1.79 +-11.72 12.11 309.49 +-2.14 +-13.62 12.42 368.63 +-2.10 +-16.22 12.68 419.92 +-2.37 +-18.48 12.88 457.10 +-2.58 +-20.11 13.14 506.72 +-2.75 +-22.30 \END; /* Table.2 of JNST, vol.48, p834, 2011 */ /* '16' Statistical error */ /* '17' Total systematic error */ \\END;