ENTRY 20675 19840127 00002067500000001
SUBENT 20675001 19840127 00002067500100001
BIB 15 43 2067500100002
INSTITUTE (2AUSIRK) 2067500100003
REFERENCE (J,ZP/A,276,(1),75,760128) 2067500100004
AUTHOR (H.FELBER,H.FRIEDMANN) 2067500100005
TITLE -DETERMINATION OF THE CROSS SECTION 14N(N,P)14C FOR 2067500100006
14.7 MEV NEUTRONS BY A MEASUREMENT OF THE ACTIVITY 2067500100007
OF 14C- 2067500100008
FACILITY (CCW ) COCKCROFT-WALTON TYPE ACCELERATOR (200 KEV) OF 2067500100009
THE INSTITUT FUER RADIUMFORSCHUNG UND KERNPHYSIK OF 2067500100010
THE UNIVERSITY OF VIENNA. 2067500100011
INC-SOURCE (D-T ) THE REACTION T(D,N)4HE PRODUCES 14.7 MEV 2067500100012
NEUTRONS IN A TRITIUM-TARGET,BLANKETED ON TITANIUM. 2067500100013
SAMPLE .NATURAL NITROGEN AS UREA-COMPOUND (NH2CONH2) (15G). 2067500100014
METHOD (ACTIV) THE ACTIVITY OF THE BETA-DECAY OF C14 TO N14 2067500100015
WAS MEASURED AFTER IRRADIATION. 2067500100016
DETECTOR (PROPC) LOW-LEVEL PROPORTIONAL COUNTER WAS USED 2067500100017
(HOUTERMANS-OESCHGER TYPE TUBE). 2067500100018
.SUPRESSION OF COSMIC RAY COMPONENT BY SHIELDING 2067500100019
(24T IRON). 2067500100020
.SUPRESSION OF MESON COMPONENT BY ANTICOINCIDENCE 2067500100021
WITH A MULTI-WIRE SHIELDING COUNTER ASSEMBLY. 2067500100022
.EFFICIENCY WAS DETERMINED BY USING OXALIC ACID 2067500100023
STANDARD, SUPPLIED BY NBS(10.96+-0.03 COUNTS/MIN.). 2067500100024
MONITOR .REACTION CROSS SECTION FOR 27AL(N,ALPHA)24NA. 2067500100025
.FOR DETAILS SEE H.FRIEDMANN S THESIS,1975. 2067500100026
COMMENT .AGREEMENT WITH PREVIOUS DATA NOT ACHIEVED (J.CSIKAI 2067500100027
AND S.NAGY,NP A91,222(1967)).STATISTICAL MODEL 2067500100028
CALCULATIONS OF CROSS SECTION AND EXCITATION 2067500100029
FUNCTION CARRIED OUT.REASONABLE AGREEMENT WITH THE 2067500100030
PRESENTED EXPERIMENTAL DATA OF THE CROSS SECTION. 2067500100031
STATUS .14N(N,P)14C CROSS SECTION AT 14.7 MEV TAKEN FROM 2067500100032
REFERENCE. 2067500100033
HISTORY (761012C) 2067500100034
(770504E) 2067500100035
CORRECTION .FOR SCATTERED NEUTRONS FROM THE ACCELERATOR ROOM, 2067500100036
FROM THE TARGET CONSTRUCTION AND FROM D(D,N)3HE 2067500100037
REACTIONS.DETAILS SEE H.FRIEDMANN,THESIS,VIENNA 2067500100038
1975. 2067500100039
ERR-ANALYS .ERROR INCLUDES THE MEAN OF THE UNCERTAINTIES OF THE 2067500100040
FOLLOWING CONTRIBUTIONS- 2067500100041
STATISTICAL UNCERTAINTIES,BACKGROUND,EFFICIENCY 2067500100042
(DETERMINED BY THE UNCERTAINTY IN THE OXALIC ACID 2067500100043
STANDARD),PHYSICAL CONSTANTS,FLUX DETERMINATION, 2067500100044
CORRECTION FOR SCATTERED NEUTRONS. 2067500100045
ENDBIB 43 0 2067500100046
NOCOMMON 0 0 2067500100047
ENDSUBENT 46 0 2067500199999
SUBENT 20675002 19840127 00002067500200001
BIB 2 3 2067500200002
REACTION (7-N-14(N,P)6-C-14,,SIG) 2067500200003
HISTORY (761012C) 2067500200004
(770504E) 2067500200005
ENDBIB 3 0 2067500200006
NOCOMMON 0 0 2067500200007
DATA 4 1 2067500200008
EN EN-ERR DATA DATA-ERR 2067500200009
MEV MEV MB MB 2067500200010
1.4700E+01 1.0000E-01 3.8000E+01 3.0000E+00 2067500200011
ENDDATA 3 0 2067500200012
ENDSUBENT 11 0 2067500299999
ENDENTRY 2 0 2067599999999