ENTRY 10209 20010305 00001020900000001 SUBENT 10209001 20010305 00001020900100001 BIB 14 28 1020900100002 INSTITUTE (1USACSE) 1020900100003 REFERENCE (J,NP/A,175,156,197111) 1020900100004 AUTHOR (K.F.KORAL,E.A.SILVERSTEIN,P.R.BEVINGTON) 1020900100005 TITLE A search for the bound trineutron from 7Li+n reactions.1020900100006 FACILITY (VDG) Van de Graaff. 2 nsec bursts at 1 MHz rate. 1020900100007 INC-SOURCE (D-T) T(d,n) reaction, 2.7-MeV deuterons. Tritium gas 1020900100008 cell filled to 700-mm Hg pressure. 1020900100009 SAMPLE Cylindrical lithium target, 8.25 cm long by 10.16 cm 1020900100010 diameter. 1020900100011 METHOD Comparsion of background with dummy carbon sample to 1020900100012 find minimum number of trineutrons that would produce 1020900100013 discernable difference. 1020900100014 DETECTOR (SCIN) High pressure (79 atm) helium gas scintillator. 1020900100015 Ring geometry created by placing tungsten shadow 1020900100016 cylinder between target and detector, adjacent to 1020900100017 target. Target-detector center-to-center distance 1020900100018 0.96 m. Reaction angles between 4 and 38 degrees 1020900100019 observable. 1020900100020 ANALYSIS Binding energy of tri-neutron treated as parameter. 1020900100021 MONITOR 4He(3He,3He) used to estimate 4He(n,3n) reaction. 1020900100022 ERR-ANALYS No information on uncertainties. 1020900100023 STATUS (APRVD) Approved by author. 1020900100024 Data taken from reference text. 1020900100025 HISTORY (19711203C) 1020900100026 (19750905A) ANGLE PUT INTO PROPER DATA TABLES. BIB 1020900100027 ADDITIONS. 1020900100028 (19821012A) CONVERTED TO REACTION FORMALISM. 1020900100029 (20010305A) Updated to new date formats, lower case. 1020900100030 ENDBIB 28 0 1020900100031 COMMON 2 3 1020900100032 EN EN-ERR 1020900100033 MEV MEV 1020900100034 18.80 .02 1020900100035 ENDCOMMON 3 0 1020900100036 ENDSUBENT 35 0 1020900199999 SUBENT 10209002 19821012 00001020900200001 BIB 1 1 1020900200002 REACTION (3-LI-7(N,3N)3-LI-5,,DA) 1020900200003 ENDBIB 1 0 1020900200004 NOCOMMON 0 0 1020900200005 DATA 3 1 1020900200006 ANG-MIN ANG-MAX DATA-MAX 1020900200007 ADEG ADEG MB/SR 1020900200008 5. 40. .1 1020900200009 ENDDATA 3 0 1020900200010 ENDSUBENT 9 0 1020900299999 SUBENT 10209003 20010305 00001020900300001 BIB 2 4 1020900300002 REACTION (3-LI-7(N,3N)3-LI-5,,SIG) 1020900300003 ANALYSIS Integrated angular distribution from 5-40 degrees. 1020900300004 Angular distribution assumed isotropic. Value smaller 1020900300005 if angular distribution peaked at 25 degrees. 1020900300006 ENDBIB 4 0 1020900300007 NOCOMMON 0 0 1020900300008 DATA 1 1 1020900300009 DATA-MAX 1020900300010 MB 1020900300011 1. 1020900300012 ENDDATA 3 0 1020900300013 ENDSUBENT 12 0 1020900399999 SUBENT 10209004 19821012 00001020900400001 BIB 1 1 1020900400002 REACTION (3-LI-7(N,3N+P)2-HE-4,,DA) 1020900400003 ENDBIB 1 0 1020900400004 NOCOMMON 0 0 1020900400005 DATA 3 1 1020900400006 ANG-MIN ANG-MAX DATA-MAX 1020900400007 ADEG ADEG MB/SR 1020900400008 5. 40. .6 1020900400009 ENDDATA 3 0 1020900400010 ENDSUBENT 9 0 1020900499999 SUBENT 10209005 19821012 00001020900500001 BIB 1 1 1020900500002 REACTION (3-LI-7(N,3N+P)2-HE-4,,DA/DE) 1020900500003 ENDBIB 1 0 1020900500004 COMMON 2 3 1020900500005 E-MIN E-MAX 1020900500006 MEV MEV 1020900500007 2.4 4.7 1020900500008 ENDCOMMON 3 0 1020900500009 DATA 3 1 1020900500010 ANG-MIN ANG-MAX DATA-MAX 1020900500011 ADEG ADEG MB/SR/MEV 1020900500012 5. 40. .8 1020900500013 ENDDATA 3 0 1020900500014 ENDSUBENT 13 0 1020900599999 SUBENT 10209006 20010305 00001020900600001 BIB 3 4 1020900600002 REACTION (3-LI-7(N,3N+P)2-HE-4,PAR,SIG) 1020900600003 ANALYSIS (INTAD,INTED) pi * (4 MeV) * double differential cross 1020900600004 section. 1020900600005 STATUS (DEP,10209005) 1020900600006 ENDBIB 4 0 1020900600007 COMMON 2 3 1020900600008 E-MIN E-MAX 1020900600009 MEV MEV 1020900600010 2.4 4.7 1020900600011 ENDCOMMON 3 0 1020900600012 DATA 1 1 1020900600013 DATA-MAX 1020900600014 MB 1020900600015 10. 1020900600016 ENDDATA 3 0 1020900600017 ENDSUBENT 16 0 1020900699999 ENDENTRY 6 0 1020999999999