ENTRY 22301 19970206 00002230100000001 SUBENT 22301001 19970206 00002230100100001 BIB 15 48 2230100100002 REFERENCE (J,NP/A,580,253,94) 2230100100003 TITLE -MEASUREMENT OF THE ANALYZING POWER AY IN NEUTRON- 2230100100004 PROTON RADIATIVE CAPTURE AT EN=68 MEV. 2230100100005 AUTHOR (M.TUCCILLO,D.FRITSCHI,J.GOETZ,R.HENNECK,J.JOURDAN, 2230100100006 G.MASSON,H.MUEHRY,L.M.QIN,S.ROBINSON,P.STEINER,I.SICK,2230100100007 P.TRUEB,B.ZIHLMANN) 2230100100008 INSTITUTE (2SWTBAS) 2230100100009 (2SWTPSI) EXPERIMENTAL SITE. 2230100100010 FACILITY (CYCLO,2SWTPSI) PSI CYCLOTRON. 2230100100011 INC-SOURCE (P-D ) POLARIZED NEUTRONS WERE PRODUCED BY BOMBARDING 2230100100012 A LIQUID DEUTERIUM TARGET WITH POLARIZED PROTONS. THE 2230100100013 TWO FINAL-STATE PROTONS ARE LEFT IN A QUASI-BOUND 1S0-2230100100014 STATE. THE PROTON BEAM CURRENT WAS TYPICALLY 2 MICRO- 2230100100015 AMPS, GIVING A FLUX OF 5.0E+07 NEUTRONS/SEC ON THE 2230100100016 TARGET 2230100100017 (POLNS) THE POLARIZATION OF THE PROTON BEAM WAS 71 PER 2230100100018 CENT, AND THAT OF THE NEUTRONS ABOUT 29 PER CENT. THE 2230100100019 POLARIZATION WAS FLIPPED EVERY FEW SECONDS. THE POLA- 2230100100020 RIZATION OF THE PROTON BEAM WAS MONITORED WITH A PC 2230100100021 ELASTIC SCATTERING POLARIMETER. 2230100100022 INC-SPECT .QUASIMONOENERGETIC NEUTRON SPECTRUM ARE EXTRACTED AT 02230100100023 DEGREES. THE NEUTRON BEAM SPOT WAS DEFINED TO A DIA- 2230100100024 METER OF 18 CM BY A BRASS COLLIMATOR. 2230100100025 METHOD (COINC) THE RECOIL DEUTERON AND CAPTURE GAMMA RAY WERE 2230100100026 DETECTED IN COINCIDENCE. 2230100100027 DETECTOR (SCIN ) THE RECOILING DEUTERONS WERE DETECTED IN AN 2230100100028 ACTIVE TARGET CONSISTING OF SIX PLASTIC SCINTILLATOR 2230100100029 BARS OF BC400, FORMING A BLOCK OF 20 BY 50 BY 12 CM3. 2230100100030 THE BLOCK WAS LOCATED 2.5 M FROM THE COLLIMATOR EXIT, 2230100100031 AND WAS TILTED BY 35 DEGREES. THE INDIVIDUAL BARS WERE2230100100032 READ OUT BY FAST 3 INCH PM TUBES. 2230100100033 (NAICR) THREE PAIRS OF 20 CM DIAMETER BY 20 CM LONG 2230100100034 NAI(TL) CRYSTALS, PLACED SYMMETRICALLY LEFT AND RIGHT 2230100100035 OF THE TARGET AT A DISTANCE OF 52 CM, SERVED TO DETECT2230100100036 THE EMITTED CAPTURE GAMMA RAY. WITH 8 CM THICK LEAD 2230100100037 COLLIMATORS, THE EFFECTIVE SOLID ANGLE WAS REDUCED TO 2230100100038 73 MSR. 2230100100039 PART-DET (D ) 2230100100040 (G ) 2230100100041 SAMPLE .THE SCINTILLATOR USED FOR DEUTERON DETECTION WAS ALSO 2230100100042 USED AS AN ACTIVE HYDROGEN TARGET, HAVING A THICKNESS 2230100100043 OF 1.3 GRAMS OF HYDROGEN PER CM2. 2230100100044 CORRECTION .THE DATA WERE CORRECTED FOR BACKGROUND. 2230100100045 ERR-ANALYS (ERR-S) STATISTICAL ERROR. 2230100100046 (ERR-1) TOTAL SYSTEMATIC ERROR. 2230100100047 STATUS .DATA TAKEN FROM MAIN REF. 2230100100048 HISTORY (960303C) N.O. 2230100100049 (961220E) 2230100100050 ENDBIB 48 0 2230100100051 NOCOMMON 0 0 2230100100052 ENDSUBENT 51 0 2230100199999 SUBENT 22301002 19961220 00002230100200001 BIB 3 4 2230100200002 REACTION (1-H-1(N,G)1-H-2,,POL/DA,,ANA) 2230100200003 STATUS .DATA TAKEN FROM TABLE 1 OF MAIN REF. 2230100200004 HISTORY (960303C) N.O. 2230100200005 (961220E) 2230100200006 ENDBIB 4 0 2230100200007 COMMON 1 3 2230100200008 EN 2230100200009 MEV 2230100200010 6.7700E+01 2230100200011 ENDCOMMON 3 0 2230100200012 DATA 4 5 2230100200013 ANG-CM DATA ERR-S ERR-1 2230100200014 ADEG NO-DIM NO-DIM NO-DIM 2230100200015 6.8900E+01-6.2000E-02 7.0000E-03 2.0000E-03 2230100200016 8.5300E+01-9.1000E-02 9.0000E-03 4.0000E-03 2230100200017 1.0340E+02-1.2100E-01 6.0000E-03 5.0000E-03 2230100200018 1.1860E+02-1.7400E-01 1.0000E-02 7.0000E-03 2230100200019 1.4370E+02-2.4600E-01 8.0000E-03 1.0000E-02 2230100200020 ENDDATA 7 0 2230100200021 ENDSUBENT 20 0 2230100299999 ENDENTRY 2 0 2230199999999