ENTRY 22165 19910205 00002216500000001 SUBENT 22165001 19910205 00002216500100001 BIB 13 47 2216500100002 REFERENCE (J,NIM/A,278,737,89) 2216500100003 TITLE -HIGH RESOLUTION MEASUREMENT OF PROTONS EMITTED FROM 2216500100004 MEDIUM-ENERGY NEUTRON INDUCED REACTIONS BY MEANS OF 2216500100005 A MAGNETIC SPECTROGRAPH. 2216500100006 AUTHOR (N.KOORI,M.HYAKUTAKE,M.MATOBA,H.IJIRI,Y.FUJITA, 2216500100007 Y.UOZUMI,S.SHIRATO,T.MOTOBAYASHI,T.OHSAWA,K.SAGARA) 2216500100008 INSTITUTE (2JPNKYU) N.K., M.H., M.M., H.I., Y.F., Y.U., K.S. 2216500100009 (2JPNYOK) S.S., T.M. 2216500100010 (2JPNKTO) T.O. 2216500100011 FACILITY (ISOCY,2JPNOSA) AVF CYCLOTRON AT THE RESEARCH CENTRE 2216500100012 FOR NUCLEAR PHYSICS, OSAKA UNIV. 2216500100013 INC-SOURCE (P-BE ) A 17.0 MG/CM-SQ THICK TARGET WAS BOMBARDED WITH2216500100014 A 64.94 MEV PROTON BEAM, RESOLUTION 170 KEV FWHM, PRO-2216500100015 DUCING NEUTRONS OF 62.8 MEV FROM THE 9-BE(P,N)9-B-GND 2216500100016 REACTION. THE PROTON BEAM WAS STOPPED BY STACKED SI 2216500100017 CRYSTALS OF TOTAL THICKNESS 25 MM WHICH ALSO SERVED AS2216500100018 A FARADAY CUP. THE NEUTRON YIELD WAS 3.3E+6 N/S/CM-SQ 2216500100019 FOR A 1 MICRO-AMP PROTON BEAM, AND THE ENERGY LOSS IN 2216500100020 THE TARGET WAS 145 KEV. THE ESTIMATED NEUTRON BEAM 2216500100021 RESOLUTION WAS 223 KEV FWHM. 2216500100022 METHOD (EDE ) 2216500100023 (TOF ) 2216500100024 DETECTOR (MAGSP) MAGNETIC SPECTROGRAPH 'RAIDEN' WITH A MOMENTUM 2216500100025 RESOLUTION DELTA-P/P OF BETTER THAN 1.0E-4 ALONG THE 2216500100026 FOCAL PLANE, SET AT 0.0 DEG. THE SOLID ANGLE WAS 2216500100027 6.0 MILLI-SR WHICH CORRESPONDED TO AN ANGULAR SPREAD 2216500100028 OF 3.6 DEG FWHM, THE MEAN ANGLE OF RECOIL PROTONS 2216500100029 BEING 2.66 DEG. THE RESULTING KINEMATIC SPREADING DUE 2216500100030 TO THIS FINITE GEOMETRY EFFECT WAS 365 KEV FWHM. 2216500100031 (MWPC ) THE FOCAL PLANE DETECTOR CONSISTED OF A 2-D 2216500100032 (PROPC) POSITION SENSITIVE GAS COUNTER, TWO DELTA-E 2216500100033 (SCIN ) PROPORTIONAL DETECTORS AND A PLASTIC SCIN- 2216500100034 TILLATION COUNTER, TOTAL LENGTH 1.5 M. THE 2216500100035 RESOLUTION WAS SUFFICIENTLY HIGH FOR ITS 2216500100036 EFFECT ON THE MEASUREMENTS TO BE IGNORED. 2216500100037 SAMPLE .A 17.1 MG/CM-SQ DEUTERATED POLYETHYLENE TARGET BACKED 2216500100038 WITH A 3 MM THICK GRAPHITE PLATE AND LOCATED 65 MM 2216500100039 FROM THE NEUTRON SOURCE POINT. ENERGY LOSS IN SAMPLE 2216500100040 WAS 173 KEV. 2216500100041 CORRECTION .BACKGROUND, DETECTION EFFICIENCY (DETERMINED FROM 2216500100042 116-SN(P,P') AND 1-H(N,P)N SCATTERING) 2216500100043 ERR-ANALYS (DATA-ERR) NO DETAILS GIVEN. 2216500100044 .THE ANGULAR RESOLUTION IS THE FWHM OF THE ANGULAR 2216500100045 FREQUENCY DISTRIBUTION DUE TO FINITE GEOMETRY EFFECT. 2216500100046 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2216500100047 HISTORY (910121C) S.W. 2216500100048 (910205E) 2216500100049 ENDBIB 47 0 2216500100050 NOCOMMON 0 0 2216500100051 ENDSUBENT 50 0 2216500199999 SUBENT 22165002 19910205 00002216500200001 BIB 3 4 2216500200002 REACTION (1-H-2(N,2N)1-H-1,,DA/DE,P) 2216500200003 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2216500200004 HISTORY (910121C) S.W. 2216500200005 (910205E) 2216500200006 ENDBIB 4 0 2216500200007 NOCOMMON 0 0 2216500200008 DATA 6 1 2216500200009 EN E ANG ANG-RSL DATA DATA-ERR 2216500200010 MEV MEV ADEG ADEG MB/SR/MEV MB/SR/MEV 2216500200011 6.2800E+01 6.0300E+01 2.66 3.6 1.6400E+01 5.0000E-012216500200012 ENDDATA 3 0 2216500200013 ENDSUBENT 12 0 2216500299999 ENDENTRY 2 0 2216599999999