ENTRY 22230 19930329 00002223000000001
SUBENT 22230001 19930329 00002223000100001
BIB 10 16 2223000100002
REFERENCE (J,NP/A,526,265,91) 2223000100003
TITLE -NUCLEON CAPTURE BY 3HE AND THE PRODUCTION OF SOLAR 2223000100004
HEP-NEUTRINOS - CROSS SECTIONS AND SHELL-MODEL CAL- 2223000100005
CULATIONS. 2223000100006
AUTHOR (R.WERVELMAN,K.ABRAHAMS,H.POSTMA,J.G.L.BOOTEN, 2223000100007
A.G.M.VAN HEES) 2223000100008
INSTITUTE (2NEDRCN) R.W., K.A. AND EXPERIMENTAL SITE. 2223000100009
(2NEDDEL) H.P. 2223000100010
(2NEDUTR) J.G.L.B. AND A.G.M.V H. 2223000100011
FACILITY (REAC ) THE HIGH FLUX REACTOR IN PETTEN. 2223000100012
METHOD (GSPEC) 2223000100013
PART-DET (G ) 2223000100014
ERR-ANALYS (DATA-ERR) 2223000100015
STATUS .DATA TAKEN FROM MAIN REF. 2223000100016
HISTORY (921219C) N.O. 2223000100017
(930329E) 2223000100018
ENDBIB 16 0 2223000100019
NOCOMMON 0 0 2223000100020
ENDSUBENT 19 0 2223000199999
SUBENT 22230002 19930329 00002223000200001
BIB 8 29 2223000200002
REACTION (2-HE-3(N,G)2-HE-4,,SIG,,MXW) 2223000200003
INC-SOURCE (REAC ) THE HORIZONTAL BEAM-TUBE HB11, WHICH HAS A SYS-2223000200004
TEM OF FOCUSING NEUTRON MIRRORS NEAR THE REACTOR CORE,2223000200005
WAS USED. TRANSMISSION OF NEUTRONS CAN ONLY TAKE PLACE2223000200006
BY TOTAL REFLECTION AT THE NICKEL MIRROR SURFACES, 2223000200007
WHICH THUS ACT AS A LOW-PASS NEUTRON FILTER. THE 6 CM 2223000200008
DIAMETER NEUTRON BEAM WAS SHAPED WITH AN ADDITIONAL 2223000200009
BORON PLASTIC AND LIF DIAPHRAGM NEAR THE TARGET. 2223000200010
INC-SPECT .THE NEUTRON SPECTRUM EAS DETERMINED BY IRRADIATING TWO2223000200011
STACKS OF TWENTY 400 MG/CM2 THICK 2.5 X 2.5 CM2 GOLD 2223000200012
FOILS, ONE BEFORE AND ONE AFTER THE TARGET GAS CELL. 2223000200013
DETECTOR (NAICR) THE 20.5 MEV CAPTURE GAMMA RAYS WERE DETECTED 2223000200014
BY TWO 25 CM DIAMETER BY 25 CM LONG NAI-TL DETECTORS, 2223000200015
BOTH PLACED 32.6 CM FROM THE TARGET CELL AND AT 90 2223000200016
DEGREES WITH RESPECT TO THE NEUTRON BEAM. THE DETEC- 2223000200017
TORS WERE SHIELDED AGAINST SCATTERED NEUTRONS AND 2223000200018
GAMMA-RAYS NOT ORIGINATING FROM THE TARGET. THE RES- 2223000200019
PONSE FUNCTION WAS CALCULATED WITH A MONTE CARLO CODE.2223000200020
SAMPLE .THE TARGET CELL CONSISTED OF AN ALUMINUM CYLINDRICAL 2223000200021
CONTAINER, 9 CM IN LENGTH AND 8 CM IN DIAMETER, WITH 2223000200022
40 MICROMETER THICK ARAMID FOILS AS ENTRANCE AND EXIT 2223000200023
WINDOWS. THE TARGET GAS WAS HIGH PURITY, RESEARCH 2223000200024
GRADE HELIUM-3 GAS. THE GAS PRESSURE WAS 700-750 TORR.2223000200025
MONITOR (79-AU-197(N,G)79-AU-198-G,,SIG) THE NEUTRON FLUX WAS 2223000200026
DETERMINED BY IRRADIATION OF 100 MG/CM2 THICK GOLD 2223000200027
FOILS. 2223000200028
STATUS .DATA TAKEN FROM MAIN REF. 2223000200029
HISTORY (921219C) N.O. 2223000200030
(930329E) 2223000200031
ENDBIB 29 0 2223000200032
COMMON 2 3 2223000200033
MONIT MONIT-ERR 2223000200034
B B 2223000200035
9.8650E+01 9.0000E-02 2223000200036
ENDCOMMON 3 0 2223000200037
DATA 3 1 2223000200038
EN-DUMMY DATA DATA-ERR 2223000200039
EV MICRO-B MICRO-B 2223000200040
2.5300E-02 5.5000E+01 3.0000E+00 2223000200041
ENDDATA 3 0 2223000200042
ENDSUBENT 41 0 2223000299999
SUBENT 22230003 19930329 00002223000300001
BIB 8 22 2223000300002
REACTION (2-HE-3(N,G)2-HE-4,,SIG) 2223000300003
INC-SOURCE (REAC ) THE FILTERED BEAM FACILITY HB12, WHICH CONTAINS2223000300004
24 CM OF IRON, 36 CM OF ALUMINUM AND 6 CM OF SULPHUR, 2223000300005
WAS USED. BY TAPERED SOLLER-SLIT COLLIMATORS, A BEAM 2223000300006
DIMENSION OF 4 X 10 CM2 WAS OBTAINED. 2223000300007
INC-SPECT .QUASI-MONOENERGETIC BEAM OF 24.5 KEV. 2223000300008
DETECTOR (NAICR) THE 20.5 MEV CAPTURE GAMMA RAYS WERE DETECTED 2223000300009
BY A 25 CM DIAMETER BY 25 CM LONG NAI-TL DETECTOR, 2223000300010
PLACED AT 25 CM FROM THE TARGET CELL AND AT 90 DEGREES2223000300011
WITH RESPECT TO THE NEUTRON BEAM. THE DETECTOR WAS 2223000300012
SHIELDED AGAINST SCATTERED NEUTRONS AND GAMMA-RAYS NOT2223000300013
ORIGINATING FROM THE TARGET. THE RESPONSE FUNCTION WAS2223000300014
CALCULATED WITH A MONTE CARLO CODE. 2223000300015
SAMPLE .A CRYOGENIC LIQUID 3HE TARGET, OPERATING AT A TEMPE- 2223000300016
RATURE OF 1.28+/-0.02 K WAS USED. 2223000300017
MONITOR (79-AU-197(N,G)79-AU-198-G,,SIG) THE NEUTRON FLUX WAS 2223000300018
DETERMINED BY IRRADIATION OF A 350 MG/CM2 THICK GOLD 2223000300019
FOIL, SANDWICHED BETWEEN TWO 600 MG/CM2 GOLD PLATES 2223000300020
AND 1 MM CADMIUM SHEETS. 2223000300021
STATUS .DATA TAKEN FROM MAIN REF. 2223000300022
HISTORY (921219C) N.O. 2223000300023
(930329E) 2223000300024
ENDBIB 22 0 2223000300025
COMMON 2 3 2223000300026
MONIT MONIT-ERR 2223000300027
MB MB 2223000300028
6.2300E+02 9.0000E+00 2223000300029
ENDCOMMON 3 0 2223000300030
DATA 4 1 2223000300031
EN EN-RSL-HW DATA DATA-ERR 2223000300032
KEV KEV MICRO-B MICRO-B 2223000300033
2.4500E+01 1.8000E+00 9.1000E+00 8.0000E-01 2223000300034
ENDDATA 3 0 2223000300035
ENDSUBENT 34 0 2223000399999
ENDENTRY 3 0 2223099999999