ENTRY 20659 19840127 00002065900000001 SUBENT 20659001 19840127 00002065900100001 BIB 15 44 2065900100002 INSTITUTE (2AUSIRK) 2065900100003 REFERENCE (J,APA,40,365,74) 2065900100004 AUTHOR (N.FRENES,W.HOFMANN,M.UHL,H.WARHANEK) 2065900100005 TITLE -DETERMINATION OF THE DIFFERENTIAL CROSS SECTION 2065900100006 DSIGMA(E)/DE OF THE REACTION 52CR(N,GAMMA)53CR- 2065900100007 FACILITY (CCW ) COCKCROFT-WALTON ACCELERATOR (170-200 KEV) 2065900100008 OF THE INSTITUT FUER RADIUMFORSCHUNG UND KERNPHYSIK 2065900100009 OF THE UNIVERSITY OF VIENNA, AUSTRIA. 2065900100010 INC-SOURCE (D-T ) T(D,N)4HE REACTION IN TRITIUM TARGET, TO 2065900100011 PRODUCE 14 MEV NEUTRONS. 2065900100012 SAMPLE .NATURAL CHROMIUM POWDER (1.2 KG AND RHO EQUALS 2065900100013 3.6 G/CM3) IN BRASS CONTAINER.FOR DETAILS OF SHAPE 2065900100014 SEE MAIN REFERENCE. 2065900100015 METHOD (PHD ) PULSE-HEIGHT-DISCRIMINATION. 2065900100016 DETECTOR (GELI ) GE(LI) DIODE AS MAIN GAMMA-DETECTOR IN LINE 2065900100017 WITH A PULSE-HEIGHT DISCRIMINATING CIRCUIT AND A 2065900100018 MULTI-CHANNEL ANALYZER. 2065900100019 .ANTICOINCIDENCE CIRCUIT WITH A NE102A SCINTILLATOR 2065900100020 AND IRON AND BORON-PARAFFIN SHIELDING TO ELIMINATE 2065900100021 BACKGROUND OF COSMIC RAYS, GAMMAS FROM THE 2065900100022 ACCELERATOR ENVIRONMENT AND SCATTERED NEUTRONS. 2065900100023 .THE EFFICIENCY OF THE GELI DETECTOR WAS DETERMINED 2065900100024 BY A COMPARATIVE MEASUREMENT OF THE GAMMA-RAYS OF 2065900100025 N16 (6.143 AND 7.112 MEV) AND FROM THE REACTION 2065900100026 11B(P,GAMMA)12C(4.4,11.7 AND 16.1 MEV). 2065900100027 ANALYSIS . PULSE HEIGHT DISTRIBUTION CALCULATED BY 2065900100028 MONTE-CARLO METHOD TO GIVE CHI2-FIT FOR EXPERIMENTAL 2065900100029 DATA. 2065900100030 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 2065900100031 THE REFERENCE REACTION WAS 27AL(N, 2065900100032 ALPHA)24NA.SEE H.VONACH ET AL.,Z.PHYS.,237,155 2065900100033 (1970). 2065900100034 STATUS .INTEGRATED NEUTRON-CAPTURE-GAMMA-EMISSION CROSS 2065900100035 SECTION DATA TAKEN FROM REFERENCE. 2065900100036 . ANGULAR ISOTROPY ASSUMED . 2065900100037 .DIFFERENTIAL DATA REQUESTED. 2065900100038 HISTORY (761015C) 2065900100039 (770504E) 2065900100040 CORRECTION .BACKGROUND SUBTRACTION AFTER DUMMY-RUN. 2065900100041 .CORRECTION FOR MULTIPLE NEUTRON SCATTERING AND 2065900100042 GAMMA-ABSORPTION IN THE SAMPLE. 2065900100043 ERR-ANALYS .20 PC UNCERTAINTY FOR EXTRAPOLATED EFFICIENCY ABOVE 2065900100044 20 MEV GAMMA ENERGY. 2065900100045 .STATISTICAL ERRORS. 2065900100046 ENDBIB 44 0 2065900100047 COMMON 2 3 2065900100048 EN EN-ERR 2065900100049 MEV MEV 2065900100050 1.4100E+01 2.0000E-01 2065900100051 ENDCOMMON 3 0 2065900100052 ENDSUBENT 51 0 2065900199999 SUBENT 20659002 19840127 00002065900200001 BIB 2 3 2065900200002 REACTION (24-CR-52(N,G)24-CR-53,PAR,SIG) 2065900200003 HISTORY (761015C) 2065900200004 (770504E) 2065900200005 ENDBIB 3 0 2065900200006 NOCOMMON 0 0 2065900200007 DATA 3 3 2065900200008 E-LVL-FIN DATA DATA-ERR 2065900200009 MEV MB MB 2065900200010 0.0000E+00 2.5500E-02 7.5000E-03 2065900200011 5.6300E-01 2.7500E-02 1.2000E-02 2065900200012 1.0000E+00 3.6800E-02 2.6000E-02 2065900200013 ENDDATA 5 0 2065900200014 ENDSUBENT 13 0 2065900299999 SUBENT 20659003 19840127 00002065900300001 BIB 3 6 2065900300002 REACTION (24-CR-52(N,G)24-CR-53,,SIG) 2065900300003 COMMENT .THE FOLLOWING DATA REPRESENT THE CROSS SECTION OF 2065900300004 THE REACTION 52CR(N,GAMMA)53CR, INTEGRATED FROM 0 2065900300005 TO THE NEUTRON SEPARATION ENERGY 7.94 MEV. 2065900300006 HISTORY (761206C) 2065900300007 (770504E) 2065900300008 ENDBIB 6 0 2065900300009 NOCOMMON 0 0 2065900300010 DATA 2 1 2065900300011 DATA DATA-ERR 2065900300012 MB MB 2065900300013 9.5000E-01 5.3000E-01 2065900300014 ENDDATA 3 0 2065900300015 ENDSUBENT 14 0 2065900399999 ENDENTRY 3 0 2065999999999