ENTRY 22947 20111223 22312294700000001 SUBENT 22947001 20111223 22312294700100001 BIB 16 77 2294700100002 TITLE Determination of the Pa-233(n,gamma) Capture Cross 2294700100003 Section up to Neutron Energies of 1 MeV using the 2294700100004 Transfer Reaction Th-232(He-3,p)Pa-234* 2294700100005 AUTHOR (S.Boyer, D.Dassie, J.N.Wilson, M.Aiche, G.Barreau, 2294700100006 S.Chajkowski, C.Grosjean, A.Guiral, B.Haas, B.Osmanov, 2294700100007 G.Aerts, E.Berthoumieux, F.Gunsing, Ch.Theisen, 2294700100008 N.Thiolliere, L.Perrot) 2294700100009 INSTITUTE (2FR CSN) Wilson -Institute De Physique Nucleaire, 2294700100010 Orsay,France. 2294700100011 (2FR GRA) Boyer, Dassie, Aiche, Barreau, Chajkowski, 2294700100012 Grosjean, Guiral, Haas 2294700100013 (2FR SAC) Boyer, Aerts, Berthoumieux, Gunsing, Theisen,2294700100014 Thiolliere, Perrot 2294700100015 (2FR GAN) Perrot 2294700100016 (2FR GRE) Thiolliere -Lab. de Physique Subatomique et 2294700100017 de Cosmologie, Grenoble, France 2294700100018 (4UZ SSU) Osmanov 2294700100019 REFERENCE (J,NP/A,775,175,2006) Main Reference, data table 2294700100020 #doi:10.1016/j.nuclphysa.2006.06.013 2294700100021 (J,EPJ/CS,2,06002,2010) Graphs of Pa-233(N,G) 2294700100022 #doi:10.1051/epjconf/20100206002 2294700100023 REL-REF (I,,J.N.Wilson,J,NIM/A,511,388,2003) Exp.details 2294700100024 #doi:10.1016/S0168-9002(03)01944-2 2294700100025 (M,,G.Audi+,J,NP/A,729,337,2003) Analysis details 2294700100026 (C,,E.Bauge+,J,PR/C,58,1118,1998) 2294700100027 (N,O1306001,M.Petit+,J,NP/A,735,345,2004) Analogous 2294700100028 Procedure of obtaining neutron induced fission cross 2294700100029 sections and statistical model calculation of (n,g) 2294700100030 and (n,ng) cross sections. 2294700100031 FACILITY (VDGT,2FR CSN) IPN Orsay Tandem facility 2294700100032 INC-SOURCE .He-3 beam of 24 MeV bombarding energy and current of 2294700100033 20 particle nA. 2294700100034 SAMPLE .150 microgram/cm**2 of Thorium Th-232 deposited on 2294700100035 40 microgram/cm**2 carbon backing, prepared at CSNSM 2294700100036 Orsay mass separator. 2294700100037 METHOD (EDE) 2294700100038 (COINC) 2294700100039 PART-DET (G) Gammas and LCP 2294700100040 DETECTOR (TELES,SI,SI) Four E-deltaE telescopes, each made of 2294700100041 two fully depleted silicon detectors of 300 and 5000 2294700100042 micrometer thickness. Energy Resolution for 20 MeV 2294700100043 protons about 70 keV. 2294700100044 (COIN,SCIN,GE) Four C6D6 scintillators and two high 2294700100045 energy resolution germanium detectors. Other four 2294700100046 scintillators arranged to detect gamma coincidences 2294700100047 with LCP in telescopes and also for gamma-decay of 2294700100048 Pa-234 excited state. 2294700100049 ANALYSIS . N,GAMMA capture cross section of Pa-233 in neutron 2294700100050 energy from 0 to 1 MeV was deduced via the product 2294700100051 of measured gamma emission probability Pgam of 2294700100052 excited Pa-234 which was measured between 5.2 and 6.2 2294700100053 MeV excitation energy using transfer reaction 2294700100054 Th-232(He-3,p)Pa-234exc, see table under this keyword,2294700100055 Table 2 of main reference. 2294700100056 It is assumed that population of states in Pa-234exc 2294700100057 is the same for both Th-232(He-3,p) and Pa-233(n,g) 2294700100058 reactions. MCNP 4C2 transport code was used for this 2294700100059 process simulations. 2294700100060 * E-exc,MeV Pgam, Nodim Pgam-err 2294700100061 * 4.92 1.03 0.07 2294700100062 * 5.12 1.02 0.07 2294700100063 * 5.32 0.65 0.05 2294700100064 * 5.52 0.49 0.04 2294700100065 * 5.72 0.43 0.03 2294700100066 * 5.92 0.39 0.03 2294700100067 * 6.12 0.51 0.03 2294700100068 CORRECTION .Correction were made for : (n,n gamma) reaction 2294700100069 contribution, for gamma detection efficiency. 2294700100070 ERR-ANALYS (DATA-ERR) Errors are not specified. 2294700100071 STATUS (DEP,O1439001) 2294700100072 (COREL,22952001) 2294700100073 HISTORY (20070116C) M.M./S.M. 2294700100074 (20070123U) Last corrections have been done 2294700100075 (20100713U) M.M. PART-DET: LCP,G -> G . 2294700100076 DOI reference was added. 2294700100077 (20111223A) Reference EPJ/CS added and BIB information 2294700100078 in SAN 002 corrected 2294700100079 ENDBIB 77 0 2294700100080 NOCOMMON 0 0 2294700100081 ENDSUBENT 80 0 2294700199999 SUBENT 22947002 20111223 22312294700200001 BIB 7 13 2294700200002 REACTION (91-PA-233(N,G)91-PA-234,,SIG,,,DERIV) 2294700200003 ANALYSIS (SURGT) Radiative capture c-s deduced via the product2294700200004 of measured gamma emission probability of Pa-234 using2294700200005 the transfer reaction Th-232(He-3,p)Pa-234-exc. 2294700200006 ASSUMED (ASSUM,(91-PA-233(N,G)91-PA-234,,SIG)/ 2294700200007 (91-PA-233(N,INL)91-PA-233,,SIG)) Calculated Ratios by 2294700200008 statistical model of compound nucleus. Used for 2294700200009 correction. 2294700200010 MISC-COL (MISC) Excitation Energy of Pa-234*. 2294700200011 ERR-ANALYS (ASSUM-ERR) Assumed Error of calculated ratios. 2294700200012 STATUS (TABLE) From Tables 3 and 4 of NP/A,775,175,2006. 2294700200013 Data correspond to Fig.2 of EPJ/CS,2,06002,2010 2294700200014 HISTORY (20111223U) Keyword ANALYSIS added 2294700200015 ENDBIB 13 0 2294700200016 COMMON 1 3 2294700200017 ASSUM-ERR 2294700200018 PER-CENT 2294700200019 50. 2294700200020 ENDCOMMON 3 0 2294700200021 DATA 5 5 2294700200022 EN DATA DATA-ERR ASSUM MISC 2294700200023 KEV B B NO-DIM MEV 2294700200024 100. 1.74 0.12 0.32 5.32 2294700200025 300. 1.30 0.10 2.15 5.52 2294700200026 500. 0.98 0.12 3.84 5.72 2294700200027 700. 0.75 0.13 4.71 5.72 2294700200028 900. 0.86 0.18 5.09 6.12 2294700200029 ENDDATA 7 0 2294700200030 ENDSUBENT 29 0 2294700299999 ENDENTRY 2 0 2294799999999