ENTRY 22159 19910103 00002215900000001 SUBENT 22159001 19910103 00002215900100001 BIB 8 11 2215900100002 REFERENCE (J,PR/C,40,1993,8911) 2215900100003 TITLE -FIRST- AND SECOND-CHANCE PROTON EMISSION IN THE 2215900100004 INTERACTION OF FAST NEUTRONS WITH 92-MO. 2215900100005 AUTHOR (S.M.QAIM,R.WOELFLE,B.STROHMAIER) 2215900100006 INSTITUTE (2GERJUL) S.M.Q, R.W. AND MAIN EXPERIMENTAL SITE 2215900100007 (2AUSIRK) B.S. 2215900100008 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 2215900100009 ERR-ANALYS (DATA-ERR) TOTAL ERROR. 2215900100010 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2215900100011 HISTORY (900927C) S.W. 2215900100012 (910103E) 2215900100013 ENDBIB 11 0 2215900100014 NOCOMMON 0 0 2215900100015 ENDSUBENT 14 0 2215900199999 SUBENT 22159002 19910617 00002215900200001 BIB 10 27 2215900200002 REACTION (42-MO-92(N,P)41-NB-92-M,,SIG) THE FIRST CHANCE PROTON 2215900200003 EMISSION. 2215900200004 FACILITY (CYCLO,2GERJUL) VARIABLE ENERGY COMPACT CYCLOTRON CV28.2215900200005 INC-SOURCE (D-D ) NEUTRONS RANGING FROM 9.0 - 10.6 MEV. 2215900200006 METHOD (ACTIV) 2215900200007 (RCHEM) ADDITION OF NB CARRIER TO MO SAMPLE FOLLOWED BY2215900200008 DISSOLUTION IN ACID. THE NB WAS PRECIPITATED BY NEU- 2215900200009 TRALISING THE SOLUTION WITH NH4OH, AND THEN HEATED TO 2215900200010 TO FORM THE OXIDE WHICH WAS TRANSFERRED TO AN AL 2215900200011 PLANCHET FOR X-RAY COUNTING. CHEMICAL YIELD DETERMINED2215900200012 GRAVIMETRICALLY AND ALSO FROM FAST NEUTRON ACTIVATION 2215900200013 ANALYSIS SEVERAL MONTHS LATER USING 93-NB(N,2N)92-NB-M2215900200014 SAMPLE .EITHER MO POWDER IN A POLYTHENE CAPSULE (DIAM 1.2 CM, 2215900200015 LENGTH 1.3 CM) OR A STACK OF MO FOILS (DIAM 1.6 CM, 2215900200016 HEIGHT 0.8 CM). IN BOTH CASES THE MO WAS 99.9% PURE. 2215900200017 AL MONITOR FOILS OF THE SAME SIZE WERE ATTACHED TO THE2215900200018 FRONT AND BACK OF THE SAMPLE. IN GENERAL THE FLUX 2215900200019 DENSITY WAS 4.0E+7 N/CM2/S. 2215900200020 DETECTOR (GELI ) 2215900200021 DECAY-DATA (41-NB-92-M,10.15D,DG,934.,0.992) 2215900200022 CORRECTION .FOR SELF-ABSORPTION, PILEUP, COINCIDENCE LOSS, GEO- 2215900200023 METRY, DETECTOR EFFICIENCY, G-RAY ABUNDANCE. 2215900200024 .CORRECTION FOR CONTRIBUTION FROM BACKGROUND NEUTRONS 2215900200025 FROM THE D-D SOURCE. 2215900200026 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2215900200027 HISTORY (900927C) S.W. 2215900200028 (910103E) 2215900200029 ENDBIB 27 0 2215900200030 NOCOMMON 0 0 2215900200031 DATA 4 4 2215900200032 EN EN-RSL-HW DATA DATA-ERR 2215900200033 MEV MEV MB MB 2215900200034 9.03 0.32 95. 9. 2215900200035 9.60 0.29 104. 9. 2215900200036 10.14 0.25 110. 8. 2215900200037 10.64 0.23 116. 9. 2215900200038 ENDDATA 6 0 2215900200039 ENDSUBENT 38 0 2215900299999 SUBENT 22159003 19910617 00002215900300001 BIB 10 40 2215900300002 REACTION ((42-MO-92(N,X)1-H-1,EM,SIG)- 2215900300003 (42-MO-92(N,P)41-NB-92-M,,SIG)) THE SECOND CHANCE 2215900300004 PROTON EMISSION, EFFECTIVELY MO-92(N,N'P+PN+D)NB-91-M.2215900300005 FACILITY 1(CYCLO,2GERJUL) VARIABLE ENERGY COMPACT CYCLOTRON CV28.2215900300006 2(VDG,2ZZZGEL) CN-TYPE VAN DE GRAAFF MACHINE. 2215900300007 INC-SOURCE1(D-D ) NEUTRONS RANGING FROM 9.0 - 10.6 MEV. 2215900300008 2(D-T ) NEUTRONS RANGING FROM 12.6 - 14.4 MEV. 2215900300009 METHOD (ACTIV) 2215900300010 1(RCHEM) ADDITION OF NB CARRIER TO MO SAMPLE FOLLOWED BY2215900300011 DISSOLUTION IN ACID. THE NB WAS PRECIPITATED BY NEU- 2215900300012 TRALISING THE SOLUTION WITH NH4OH, AND THEN HEATED TO 2215900300013 TO FORM THE OXIDE WHICH WAS TRANSFERRED TO AN AL 2215900300014 PLANCHET FOR X-RAY COUNTING. CHEMICAL YIELD DETERMINED2215900300015 GRAVIMETRICALLY AND ALSO VIA FAST NEUTRON ACTIVATION 2215900300016 ANALYSIS USING 93-NB(N,2N)92-NB-M SEVERAL MONTHS LATER2215900300017 2(RCHEM) ADDITION OF A THIN NB FOIL TO THE MO SAMPLE 2215900300018 FOLLOWED BY SUBLIMATION OF MO AS OXIDE BY HEATING IN 2215900300019 AN AIR STREAM AT HIGH TEMPERATURE. METHOD THEN SAME AS2215900300020 ABOVE. 2215900300021 SAMPLE 1.EITHER MO POWDER IN A POLYTHENE CAPSULE (DIAM 1.2 CM, 2215900300022 LENGTH 1.3 CM) OR A STACK OF MO FOILS (DIAM 1.6 CM, 2215900300023 HEIGHT 0.8 CM). IN BOTH CASES THE MO WAS 99.9% PURE. 2215900300024 AL MONITOR FOILS OF THE SAME SIZE WERE ATTACHED TO THE2215900300025 FRONT AND BACK OF THE SAMPLE. IN GENERAL THE FLUX 2215900300026 DENSITY WAS 4.0E+7 N/CM2/S. 2215900300027 2.COMPACT MO DISC (DIAM 2 CM, THICKNESS 0.5 CM) OF 99.8%2215900300028 PURITY SANDWICHED BETWEEN TWO AL MONITOR FOILS. 2215900300029 DETECTOR (SOLST) SI(LI) DETECTOR. 2215900300030 DECAY-DATA (41-NB-91-M,62.D,XR,16.58,,XR,18.62)HIGHLY CONVERTED IT2215900300031 (41-NB-92-M,10.15D,XR,15.75,,XR,17.67) 2215900300032 CORRECTION .FOR SELF-ABSORPTION, FINITE SIZE OF THE SOURCE, DETEC-2215900300033 TOR EFFICIENCY, CHEMICAL YIELD OF SEPARATION AND X-RAY2215900300034 INTENSITIES. 2215900300035 1.D-D SOURCE, CORRECTION FOR CONTRIBUTION FROM BACK- 2215900300036 GROUND NEUTRONS. 2215900300037 2.D-T SOURCE, CORRECTION FOR PRODUCTION OF 91-NB-M VIA 2215900300038 DECAY OF 91-MO-M FORMED FROM 92-MO(N,2N). 2215900300039 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2215900300040 HISTORY (900927C) S.W. 2215900300041 (910103E) 2215900300042 ENDBIB 40 0 2215900300043 NOCOMMON 0 0 2215900300044 DATA 4 7 2215900300045 EN EN-ERR DATA DATA-ERR 2215900300046 MEV MEV MB MB 2215900300047 9.03 0.32 0.09 0.05 2215900300048 9.60 0.29 0.19 0.10 2215900300049 10.14 0.25 1.43 0.75 2215900300050 10.64 0.23 2.82 0.46 2215900300051 12.59 0.28 111. 12. 2215900300052 13.39 0.39 166. 18. 2215900300053 14.36 0.49 188. 20. 2215900300054 ENDDATA 9 0 2215900300055 ENDSUBENT 54 0 2215900399999 ENDENTRY 3 0 2215999999999