ENTRY 30139 20110913 31523013900000001 SUBENT 30139001 20110913 31523013900100001 BIB 15 42 3013900100002 TITLE Four-particle disintegration of nitrogen by 3013900100003 fast neutrons 3013900100004 AUTHOR (J.Moesner, G.Schmidt, J.Schintlmeister) 3013900100005 INSTITUTE (2GERZFK) 3013900100006 EXP-YEAR (1966) 3013900100007 REFERENCE (J,NP/A,103,238,196710)Measurements,method,cross-sect. 3013900100008 (J,NP/A,173,449,197110)Branching rat.,spin of B-11 lvls3013900100009 (R,ZFK-122,305,196607)Preliminary results 3013900100010 (R,ZFK-130,162,196612)Short analysis 3013900100011 SAMPLE The cloud chamber filled with air and water vapour at 3013900100012 152 torr is used as the target 3013900100013 MONITOR Absolute measurement 3013900100014 FACILITY Pulsed cascade generator 3013900100015 INC-SOURCE (D-T) Deuteron-tritium 3013900100016 METHOD Stereoscopic photographs of the events in the cloud 3013900100017 chamber allow a kinematically complete measurement thus3013900100018 permitting to assign events to a specific decay cascade3013900100019 (ASSOP) Alphas of the t(d,n)a reaction are recorded 3013900100020 for the monitoring. 3013900100021 PART-DET (A) alphas, Li-7 3013900100022 DETECTOR (TRD) Cloud chamber 3013900100023 CORRECTION = The number of neutrons passing through the 3013900100024 effective volume of the cloud chamber is corrected 3013900100025 for dead-time of the alpha-counter, for the background 3013900100026 correction of the alpha-spectrum, for the angular 3013900100027 asymmetry of the reaction. 3013900100028 = The lengths of the tracks are corrected thus3013900100029 improving the energy resolution. 3013900100030 ERR-ANALYS (DATA-ERR) Errors given include =systematic errors (on 3013900100031 the angles and lengths of tracks, etc...) 3013900100032 =statistical errors 3013900100033 HISTORY (19711118C)CA 3013900100034 (19760625U) Labcode and other bibcodes corrected, 3013900100035 data table of subentry 5 rearranged. Os 3013900100036 (19880524A) TMK. Change iso-quant to reaction and 3013900100037 standard to monitor 3013900100038 (19901024A) VOF. Branching ratios from subentries 3 and3013900100039 5 were splitted in 3 subentries ( 3 ,5 and 7) 3013900100040 using en-sec formalism. 3013900100041 (19930120U) HW.- Bib. Corrections in subent'S 003, 007.3013900100042 (20080208A) BIB section updated 3013900100043 (20110812A) VS. TITLE, AUTHOR corrected. 3013900100044 ENDBIB 42 0 3013900100045 NOCOMMON 0 0 3013900100046 ENDSUBENT 45 0 3013900199999 SUBENT 30139002 20080208 31263013900200001 BIB 3 4 3013900200002 REACTION (7-N-14(N,2A)3-LI-7,,SIG) 3013900200003 STATUS (TABLE) Data taken from Nucl.Phys. 3013900200004 A173,pag 453,(1971).Tab. 1 3013900200005 HISTORY (19901024A) VOF.-Iso-qu.changed to react.,Status added 3013900200006 ENDBIB 4 0 3013900200007 COMMON 2 3 3013900200008 EN EN-RSL 3013900200009 MEV MEV 3013900200010 14.1 0.25 3013900200011 ENDCOMMON 3 0 3013900200012 DATA 2 1 3013900200013 DATA DATA-ERR 3013900200014 MB MB 3013900200015 58. 12. 3013900200016 ENDDATA 3 0 3013900200017 ENDSUBENT 16 0 3013900299999 SUBENT 30139003 20080208 31263013900300001 BIB 6 15 3013900300002 REACTION ((7-N-14(N,2A)3-LI-7,PAR,SIG)/ 3013900300003 (7-N-14(N,2A)3-LI-7,,SIG)) branching ratios 3013900300004 via Be-8 and Li-7(0) + Li-7(0.478 MeV) 3013900300005 COMMENT For the disintegration via B-11,the accepted spins of 3013900300006 two levels have been confirmed by comparison with the 3013900300007 calculations of S.Devons and L.J.B.Goldfarb 3013900300008 Encyclopedia of Physics(Springer-Verlag,Berlin,1957) 3013900300009 vol.Xlii,p.362 3013900300010 EN-SEC (E-EXC1,4-BE-8) 3013900300011 (E-EXC2,3-LI-7) 3013900300012 STATUS (TABLE)Data taken from Nucl.Phys.A173, 3013900300013 p.453,(1971).Tab. 1 3013900300014 HISTORY (19901024A)VOF.- Data recompiled using en-sec formalism3013900300015 (19930120U) HW.- Mispunch in free text corrected.- 3013900300016 MISC-COL spin 3013900300017 ENDBIB 15 0 3013900300018 COMMON 1 3 3013900300019 E-EXC1 3013900300020 MEV 3013900300021 0. 3013900300022 ENDCOMMON 3 0 3013900300023 DATA 5 4 3013900300024 EN EN-RSL E-EXC2 DATA DATA-ERR 3013900300025 MEV MEV MEV NO-DIM NO-DIM 3013900300026 14.1 0.25 0. 6.4E-02 0.7E-02 3013900300027 14.1 0.25 0.478 6.3E-02 0.6E-02 3013900300028 15.7 0.5 0. 5.5E-02 1.0E-02 3013900300029 15.7 0.5 0.478 4.9E-02 1.0E-02 3013900300030 ENDDATA 6 0 3013900300031 ENDSUBENT 30 0 3013900399999 SUBENT 30139004 20080208 31263013900400001 BIB 3 7 3013900400002 REACTION (7-N-14(N,2A)3-LI-7,,SIG,,,CALC) 3013900400003 STATUS (DEP,30139002) 3013900400004 The measured value of the cross section at 14.1 MeV 3013900400005 is used to calculate the cross section value at 15.7MeV3013900400006 according to the formula of Sachs (Phys.Rev.103(1956) 3013900400007 **Data taken from Nucl.Phys. A103,pag 238,(1967) 3013900400008 HISTORY (19901024U) VOF.-Status corrected 3013900400009 ENDBIB 7 0 3013900400010 COMMON 2 3 3013900400011 EN EN-RSL 3013900400012 MEV MEV 3013900400013 15.7 0.5 3013900400014 ENDCOMMON 3 0 3013900400015 DATA 2 1 3013900400016 DATA DATA-ERR 3013900400017 MB MB 3013900400018 70. 15. 3013900400019 ENDDATA 3 0 3013900400020 ENDSUBENT 19 0 3013900499999 SUBENT 30139005 20080208 31263013900500001 BIB 5 9 3013900500002 REACTION ((7-N-14(N,2A)3-LI-7,PAR,SIG)/ 3013900500003 (7-N-14(N,2A)3-LI-7,,SIG)) branching ratios 3013900500004 via Be-11(0) and Li-7(0),Li-7(0.478) 3013900500005 EN-SEC (E-EXC1,5-B-11) 3013900500006 (E-EXC2,3-LI-7) 3013900500007 MISC-COL spin 3013900500008 STATUS (TABLE) Data taken from Nucl.Phys. A173, 3013900500009 pag 453,(1971).Tab. 1 3013900500010 HISTORY (19901024A) VOF .- Data recompiled using en-sec formali3013900500011 ENDBIB 9 0 3013900500012 COMMON 2 3 3013900500013 EN EN-RSL 3013900500014 MEV MEV 3013900500015 14.1 0.25 3013900500016 ENDCOMMON 3 0 3013900500017 DATA 6 15 3013900500018 E-EXC1 E-EXC2 DATA DATA-ERR DATA-MAX MISC 3013900500019 MEV MEV NO-DIM NO-DIM NO-DIM NO-DIM 3013900500020 9.19 0. 12.0E-02 1.5E-02 3.5 3013900500021 9.277 0. 20.2E-02 1.7E-02 2.5 3013900500022 9.88 0. 3.3E-02 0.9E-02 3013900500023 10.25 0. 17.1E-02 1.3E-02 3013900500024 10.34 0. 0. 3013900500025 10.34 0.478 0. 3013900500026 10.60 0. 12.8E-02 1.3E-02 3013900500027 10.60 0.478 4.2E-02 1.6E-02 3013900500028 10.96 0.478 10.5E-02 1.2E-02 3013900500029 11.29 0. 4.4E-02 2.0E-02 3013900500030 11.29 0.478 0. 3013900500031 11.49 0. 2.6E-02 3013900500032 11.49 0.478 0. 3013900500033 11.60 0. 0.2E-02 3013900500034 11.60 0.478 0. 3013900500035 ENDDATA 17 0 3013900500036 ENDSUBENT 35 0 3013900599999 SUBENT 30139006 20080208 31263013900600001 BIB 4 6 3013900600002 REACTION (7-N-14(N,T+2A)2-HE-4,,SIG) 3013900600003 COMMENT At 15.7MeV, 1127 events of the reaction N-14(n,2a)Li-7 3013900600004 and 13 events of the four particle reaction N-14(n,t)3a3013900600005 were observed. 3013900600006 STATUS (TABLE) Data taken from Nucl.Phys. A103,pag 238,(1967)3013900600007 HISTORY (19901024U) VOF.-Status moved from subentry 001 3013900600008 ENDBIB 6 0 3013900600009 COMMON 2 3 3013900600010 EN EN-RSL 3013900600011 MEV MEV 3013900600012 15.7 0.5 3013900600013 ENDCOMMON 3 0 3013900600014 DATA 2 1 3013900600015 DATA DATA-ERR 3013900600016 MB MB 3013900600017 0.8 0.5 3013900600018 ENDDATA 3 0 3013900600019 ENDSUBENT 18 0 3013900699999 SUBENT 30139007 20080208 31263013900700001 BIB 4 9 3013900700002 REACTION ((7-N-14(N,2A)3-LI-7,PAR,SIG)/ 3013900700003 (7-N-14(N,2A)3-LI-7,,SIG)) branching ratios 3013900700004 via Be-11(0) and Li-7(0),Li-7(0.478) 3013900700005 EN-SEC (E-EXC1,5-B-11) 3013900700006 (E-EXC2,3-LI-7) 3013900700007 STATUS (TABLE) Data taken from Nucl.Phys. A173, 3013900700008 pag 453,(1971).Tab. 1 3013900700009 HISTORY (19901024A) VOF.- Subentry added- 3013900700010 (19930120U) HW.- Coding under en-sec altered.- 3013900700011 ENDBIB 9 0 3013900700012 COMMON 2 3 3013900700013 EN EN-RSL 3013900700014 MEV MEV 3013900700015 15.7 0.5 3013900700016 ENDCOMMON 3 0 3013900700017 DATA 5 3 3013900700018 E-EXC1-MIN E-EXC1-MAX E-EXC2 DATA DATA-ERR 3013900700019 MEV MEV MEV NO-DIM NO-DIM 3013900700020 8.9 9.4 0. 12.3E-02 2.0E-02 3013900700021 9.4 14.5 0. 59.5E-02 5.0E-02 3013900700022 9.4 14.5 0.478 17.8E-02 2.0E-02 3013900700023 ENDDATA 5 0 3013900700024 ENDSUBENT 23 0 3013900799999 ENDENTRY 7 0 3013999999999