ENTRY 22018 19881117 00002201800000001 SUBENT 22018001 19881117 00002201800100001 BIB 17 59 2201800100002 REFERENCE (C,86DUBROV,,8605) MAIN REF. 2201800100003 (C,85SANTA,2,1277,8505) EXPERIMENTAL DETAILS. 2201800100004 (W,LISKIEN,8609) NUMERICAL DATA. 2201800100005 TITLE -LI-7(N,N-PRIME)LI-7-*(478) NEUTRON ANGULAR DISTRI- 2201800100006 BUTION DERIVED FROM DOPPLER-BROADENED GAMMA-ENERGY 2201800100007 DISTRIBUTIONS. 2201800100008 AUTHOR (H.LISKIEN,S.BAO) 2201800100009 INSTITUTE (2ZZZGEL) 2201800100010 (3CPRBJG) S.B. 2201800100011 FACILITY (VDG,2ZZZGEL) GEEL VAN DE GRAFF WITH PULSED DEUTERON 2201800100012 BEAMS /2 NS PULSE WIDTH, 400 NS PULSE DISTANCE, 2201800100013 2.5 MICRO-AMP/. 2201800100014 INC-SOURCE (D-D) 36 MM LONG GAS TARGET CELL, FILLED WITH 0.15 2201800100015 MPA D2 GAS. 3.3 MG/CM2 HAVAR ENTRANCE FOIL. TA BEAM 2201800100016 STOP. 2201800100017 INC-SPECT .QUASI-MONOENERGETIC NEUTRONS IN THE RANGE 4 - 8.5 2201800100018 MEV. 2201800100019 .BACKGROUND FROM STRUCTURAL MATERIAL WAS NEGLIGIBLE. 2201800100020 METHOD .DOPPLER-BROADENED GAMMA-ENERGY DISTRIBUTIONS WERE 2201800100021 MEASURED TO DETERMINE THE ANGULAR DISTRIBUTION OF 2201800100022 LI-7 RECOILS, AND THEREBY DETERMINE THE NEUTRON 2201800100023 ANGULAR DISTRIBUTION. 2201800100024 (TOF) TIME-OF-FLIGHT TECHNIQUE WAS USED TO SUPPRESS 2201800100025 BACKGROUND FROM NEUTRONS. 2201800100026 DETECTOR (HPGE) A 70 CM3 PURE GERMANIUM DETECTOR AT A DISTANCE 2201800100027 OF 1.2 M WAS USED FOR GAMMA DETECTION. THE DETECTOR 2201800100028 WAS WELL SHIELDED IN A COLLIMATOR, CONSISTING OF 2201800100029 PARAFFIN, LITHIUM CARBONATE AND LEAD. A BRASS SHADOW 2201800100030 BAR SHIELDED THE DETECTOR FROM DIRECT TARGET 2201800100031 NEUTRONS. 2201800100032 PART-DET (G) 2201800100033 SAMPLE .METALLIC LITHIUM CYLINDER, 36.8 MM DIAMETER BY 2201800100034 29.9 MM HIGH, HOUSED IN AN ALUMINIUM CONTAINER 2201800100035 WITH 0.2 MM THICK WALLS. THE LITHIUM WAS ENRICHED 2201800100036 TO 99.98 PER CENT IN LI-7. THE SAMPLE WAS MOUNTED 2201800100037 10 CM FROM THE NEUTRON TARGET. 2201800100038 CORRECTION .SEVERAL CORRECTIONS WERE TAKEN INTO ACCOUNT, I.E. 2201800100039 A. THE ENERGY/ANGLE DISTRIBUTION OF THE PRIMARY 2201800100040 NEUTRONS, 2201800100041 B. THE SCATTERING IN THE SAMPLE, 2201800100042 C. THE COMBINED EFFECT OF HALF-LIFE AND STOPPING 2201800100043 POWER, 2201800100044 D. GAMMA DETECTOR RESOLUTION. 2201800100045 THESE CORRECTIONS WERE CALCULATED WITH MONTE-CARLO 2201800100046 TECHNIQUES. 2201800100047 ERR-ANALYS (DATA-ERR) NO DETAILS GIVEN. 2201800100048 ANALYSIS .IT WAS ASSUMED THAT THE C.M. ANGULAR DISTRIBUTIONS 2201800100049 COULD BE EXPRESSED AS A SUM OF LEGENDRE PLYNOMIALS. 2201800100050 LEAST-SQUARES FITTING TO THE EXPERIMENTAL DATA THEN 2201800100051 DIRECTLY GAVE THE 4 RELATIVE LEGENDRE COEFFICIENTS. 2201800100052 COMMENT .GAMMA SPECTRA WERE CALIBRATED WITH A BE-7 SOURCE, 2201800100053 WICH EMITS THE SAME GAMMA-LINE. 2201800100054 .MEASUREMENTS WERE PERFORMED AT 44, 68, 91, 111 AND 2201800100055 139 DEGREES WITH RESPECT TO THE BEAM DIRECTION. 2201800100056 STATUS .INFORMATION TAKEN FROM 85SANTA AND 86DUBROV. 2201800100057 HISTORY (861119C) NO. 2201800100058 (861212E) 2201800100059 (870605U) IF 2201800100060 (870827E) 2201800100061 ENDBIB 59 0 2201800100062 NOCOMMON 0 0 2201800100063 ENDSUBENT 62 0 2201800199999 SUBENT 22018002 19861212 00002201800200001 BIB 3 4 2201800200002 REACTION (3-LI-7(N,INL)3-LI-7,PAR,DA,,LEG/RS) 2201800200003 STATUS .DATA WERE TAKEN FROM PRIVATE COMMUNICATION. 2201800200004 HISTORY (861119C) NO. 2201800200005 (861212E) 2201800200006 ENDBIB 4 0 2201800200007 COMMON 2 3 2201800200008 NUMBER-CM E-EXC 2201800200009 NO-DIM KEV 2201800200010 1.0000E+00 4.7800E+02 2201800200011 ENDCOMMON 3 0 2201800200012 DATA 3 10 2201800200013 EN DATA DATA-ERR 2201800200014 MEV NO-DIM NO-DIM 2201800200015 4.0000E+00 1.0000E-01 4.0000E-02 2201800200016 4.5000E+00 1.7000E-01 4.0000E-02 2201800200017 5.0000E+00 2.8000E-01 3.0000E-02 2201800200018 5.5000E+00 3.9000E-01 4.0000E-02 2201800200019 6.0000E+00 2.7000E-01 3.0000E-02 2201800200020 6.5000E+00 3.5000E-01 5.0000E-02 2201800200021 7.0000E+00 1.7000E-01 4.0000E-02 2201800200022 7.5000E+00 3.0000E-01 6.0000E-02 2201800200023 8.0000E+00 5.1000E-01 4.0000E-02 2201800200024 8.5000E+00 6.8000E-01 4.0000E-02 2201800200025 ENDDATA 12 0 2201800200026 ENDSUBENT 25 0 2201800299999 SUBENT 22018003 19861212 00002201800300001 BIB 3 4 2201800300002 REACTION (3-LI-7(N,INL)3-LI-7,PAR,DA,,LEG/RS) 2201800300003 STATUS .DATA WERE TAKEN FROM PRIVATE COMMUNICATION. 2201800300004 HISTORY (861119C) NO. 2201800300005 (861212E) 2201800300006 ENDBIB 4 0 2201800300007 COMMON 2 3 2201800300008 NUMBER-CM E-EXC 2201800300009 NO-DIM KEV 2201800300010 2.0000E+00 4.7800E+02 2201800300011 ENDCOMMON 3 0 2201800300012 DATA 3 10 2201800300013 EN DATA DATA-ERR 2201800300014 MEV NO-DIM NO-DIM 2201800300015 4.0000E+00-2.6000E-01 1.0000E-01 2201800300016 4.5000E+00-2.9000E-01 9.0000E-02 2201800300017 5.0000E+00-4.3000E-01 8.0000E-02 2201800300018 5.5000E+00-3.9000E-01 1.0000E-01 2201800300019 6.0000E+00-3.1000E-01 7.0000E-02 2201800300020 6.5000E+00-1.9000E-01 1.0000E-01 2201800300021 7.0000E+00-3.0000E-01 8.0000E-02 2201800300022 7.5000E+00-1.6000E-01 1.3000E-01 2201800300023 8.0000E+00 4.0000E-02 8.0000E-02 2201800300024 8.5000E+00 1.7000E-01 9.0000E-02 2201800300025 ENDDATA 12 0 2201800300026 ENDSUBENT 25 0 2201800399999 SUBENT 22018004 19861212 00002201800400001 BIB 3 4 2201800400002 REACTION (3-LI-7(N,INL)3-LI-7,PAR,DA,,LEG/RS) 2201800400003 STATUS .DATA WERE TAKEN FROM PRIVATE COMMUNICATION. 2201800400004 HISTORY (861119C) NO. 2201800400005 (861212E) 2201800400006 ENDBIB 4 0 2201800400007 COMMON 2 3 2201800400008 NUMBER-CM E-EXC 2201800400009 NO-DIM KEV 2201800400010 3.0000E+00 4.7800E+02 2201800400011 ENDCOMMON 3 0 2201800400012 DATA 3 10 2201800400013 EN DATA DATA-ERR 2201800400014 MEV NO-DIM NO-DIM 2201800400015 4.0000E+00 2.3000E-01 1.6000E-01 2201800400016 4.5000E+00-1.0000E-02 1.5000E-01 2201800400017 5.0000E+00 6.0000E-02 1.2000E-01 2201800400018 5.5000E+00-2.9000E-01 1.6000E-01 2201800400019 6.0000E+00 4.0000E-02 1.2000E-01 2201800400020 6.5000E+00 7.0000E-02 1.6000E-01 2201800400021 7.0000E+00-1.0000E-02 1.2000E-01 2201800400022 7.5000E+00 1.2000E-01 2.2000E-01 2201800400023 8.0000E+00 6.0000E-01 1.3000E-01 2201800400024 8.5000E+00 1.7000E-01 1.3000E-01 2201800400025 ENDDATA 12 0 2201800400026 ENDSUBENT 25 0 2201800499999 SUBENT 22018005 19861212 00002201800500001 BIB 3 4 2201800500002 REACTION (3-LI-7(N,INL)3-LI-7,PAR,DA,,LEG/RS) 2201800500003 STATUS .DATA WERE TAKEN FROM PRIVATE COMMUNICATION. 2201800500004 HISTORY (861119C) NO. 2201800500005 (861212E) 2201800500006 ENDBIB 4 0 2201800500007 COMMON 2 3 2201800500008 NUMBER-CM E-EXC 2201800500009 NO-DIM KEV 2201800500010 4.0000E+00 4.7800E+02 2201800500011 ENDCOMMON 3 0 2201800500012 DATA 3 10 2201800500013 EN DATA DATA-ERR 2201800500014 MEV NO-DIM NO-DIM 2201800500015 4.0000E+00-5.0000E-02 2.2000E-01 2201800500016 4.5000E+00-3.0000E-01 2.3000E-01 2201800500017 5.0000E+00 2.1000E-01 1.8000E-01 2201800500018 5.5000E+00 2.0000E-02 2.1000E-01 2201800500019 6.0000E+00-1.3000E-01 1.5000E-01 2201800500020 6.5000E+00-2.2000E-01 2.2000E-01 2201800500021 7.0000E+00 1.0000E-02 1.9000E-01 2201800500022 7.5000E+00 1.0000E-01 2.7000E-01 2201800500023 8.0000E+00-1.1000E-01 1.7000E-01 2201800500024 8.5000E+00 1.4000E-01 1.8000E-01 2201800500025 ENDDATA 12 0 2201800500026 ENDSUBENT 25 0 2201800599999 ENDENTRY 5 0 2201899999999