ENTRY 22061 19871211 00002206100000001 SUBENT 22061001 19871211 00002206100100001 BIB 13 31 2206100100002 REFERENCE (J,NST,23,91,8601) 2206100100003 TITLE -MEASUREMENT OF HELIUM PRODUCTION CROSS SECTION 2206100100004 OF ALUMINIUM FOR 14.8 MEV NEUTRONS. 2206100100005 AUTHOR (T.FUKAHORI,Y.KANDA,H.TOBIMATSU,Y.MAEDA,K.YAMADA, 2206100100006 T.NAKAMURA,Y.IKEDA) 2206100100007 INSTITUTE (2JPNKYU) T.F., Y.K., H.T., Y.M., K.Y. 2206100100008 (2JPNJAE) T.N., Y.I. 2206100100009 FACILITY .JAERI D-T NEUTRON GENERATOR, FNS. 2206100100010 INC-SOURCE (D-T) DEUTERONS ON TRITIUM. 2206100100011 METHOD .HELIUM ACCUMULATION METHOD. THE IRRADIATED SAMPLES 2206100100012 WERE EVAPORATED IN AN ELECTRIC FURNACE TO RELEASE 2206100100013 HE ATOMS ACCUMULATED IN IT DURING NEUTRON BOMBARDMENT.2206100100014 THE GAS RELEASED WAS ANALYSED WITH A QUADRUPOLE MASS 2206100100015 SPECTROMETER. 2206100100016 DETECTOR .QUADRUPOLE MASS SPECTROMETER. THE APPARATUS WAS CALI- 2206100100017 BRATED BY USING HE-ION IMPLANTED AL DISKS WHICH WERE 2206100100018 PREPARED WITH A SMALL ACCELERATOR. 2206100100019 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) TO OBTAIN THE HE PRO- 2206100100020 DUCTION CROSS SECTION, THE (N,A)-ACTIVATION 2206100100021 CROSS SECTION WAS USED AS A STANDARD. THE RESIDUAL 2206100100022 ACTIVITY OF THE SAMPLES WERE MEASURED WITH AN 2206100100023 ABSOLUTELY CALIBRATED GELI DETECTOR. 2206100100024 SAMPLE .DISKS OF 10 MM DIAMETER BY 0.5 MM THICK ALUMINIUM 2206100100025 WITH A CHEMICAL PURITY OF 99.99 PERCENT. THE SAMPLES 2206100100026 WERE ASSEMBLED AS A SANDWICH AND WRAPPED WITH THIN 2206100100027 AL FOIL TO EXCLUDE ALPHA-PARTICLE LOSS FROM THEM. 2206100100028 ERR-ANALYS (DATA-ERR) THE ERRORS GIVEN ARE ESTIMATES FROM STATIS- 2206100100029 TICAL AND SYSTEMATIC UNCERTAINTIES. 2206100100030 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2206100100031 HISTORY (871013C) N.O. 2206100100032 (871211E) 2206100100033 ENDBIB 31 0 2206100100034 COMMON 4 3 2206100100035 EN EN-ERR MONIT MONIT-ERR 2206100100036 MEV MEV MB MB 2206100100037 1.4800E+01 5.0000E-01 1.1230E+02 7.0000E-01 2206100100038 ENDCOMMON 3 0 2206100100039 ENDSUBENT 38 0 2206100199999 SUBENT 22061002 19871211 00002206100200001 BIB 2 3 2206100200002 REACTION (13-AL-27(N,X)2-HE-4,,SIG) 2206100200003 HISTORY (871013C) N.O. 2206100200004 (871211E) 2206100200005 ENDBIB 3 0 2206100200006 NOCOMMON 0 0 2206100200007 DATA 2 1 2206100200008 DATA DATA-ERR 2206100200009 MB MB 2206100200010 1.4100E+02 8.0000E+00 2206100200011 ENDDATA 3 0 2206100200012 ENDSUBENT 11 0 2206100299999 ENDENTRY 2 0 2206199999999