ENTRY 40774 20200515 41874077400000001 SUBENT 40774001 20200515 41874077400100001 BIB 9 22 4077400100002 INSTITUTE (4RUSLEB) 4077400100003 REFERENCE (J,AE/S,,(5),75,1957) 4077400100004 (J,SJA/S,,(5),56,1957) 4077400100005 AUTHOR (A.V.Elpidinskii,F.L.Shapiro,I.V.Shtranikh) 4077400100006 TITLE Measurement of the effective cross section for the 4077400100007 Li6(n,alpha) reaction for 2.5-MeV neutrons. 4077400100008 FACILITY (ACCEL,4RUSLEB) Cascade generator 4077400100009 EXP-YEAR (1953) 4077400100010 INC-SOURCE (D-D) Heavy ice target were bombarded by D2+ ions of 4077400100011 370 keV energy. 4077400100012 DETECTOR (IOCH) Ionization chamber filled with Ar with 4077400100013 0.03-0.1 % oxygen and 0.2-0.3 % nitrogen. 4077400100014 19-channel pulse-height analyzer. 4077400100015 Cd sheets of 0.5 mm thickness to protect from thermal 4077400100016 neutrons. 4077400100017 HISTORY (19840622T) Converted from ENTRY 80111 4077400100018 (20010319A) Date is corrected 4077400100019 (20191101A) M.M. Upper -> lower case correction. 4077400100020 Subent 003 was added. 4077400100021 Refs. were corrected. 4077400100022 BIB information was updated 4077400100023 (20200515U) History line was inserted in Subent 003. 4077400100024 ENDBIB 22 0 4077400100025 NOCOMMON 0 0 4077400100026 ENDSUBENT 25 0 4077400199999 SUBENT 40774002 20191101 41844077400200001 BIB 8 32 4077400200002 REACTION (3-LI-6(N,T)2-HE-4,,SIG) 4077400200003 SAMPLE Li6F layers of 0.12-0.32 mg/cm2 thickness (+-5%) were 4077400200004 deposited by vacuum evaporation on Au foil of 4077400200005 0.2 mg/cm2 thickness . The sample shape - square of 4077400200006 6.5 x 6.5 cm with rounded corners. 4077400200007 ANALYSIS Mean value of 12 measurements. 4077400200008 CORRECTION For the gaps between analyzer channels, 4077400200009 for particle absorption in the layer, 4077400200010 for backgrounds of neutrons from d-d reaction. 4077400200011 Degradation of the beam by the front wall and the 4077400200012 electrodes of the chamber ( 1-7 %) are compensated by 4077400200013 neutron scattering in the sample, hence the correction 4077400200014 for scattering was not introduced. 4077400200015 ERR-ANALYS (ERR-S) Statistical - 2.% 4077400200016 (ERR-1) Error in resolution of the background of 4077400200017 neutrons of other energies - 7.% 4077400200018 (ERR-2) Error in the measurement of the distance 4077400200019 target - sample - 5.% 4077400200020 (ERR-3) Error in measurement of neutron flux - 3.% 4077400200021 (ERR-4) Error in corrections - 5.% 4077400200022 (ERR-T) Total error 11.% 4077400200023 REL-REF (A,,F.L.Ribe,J,PR,87,205(L5),1952) and 4077400200024 (A,,F.L.Ribe,J,PR,103,741,1956) 4077400200025 188+-25 mb 4077400200026 (A,,K.D.Tolstov+,W,TOLSTOV,1953) 4077400200027 210+-30 mb for En=2.2+-0.1 MeV 4077400200028 STATUS (TABLE) Text of abstract and text on page 63 of 4077400200029 SJA/S,,(5),56,1957 4077400200030 HISTORY (20191101A) EN-RSL=7.% was removed (not found in the 4077400200031 article) . 4077400200032 SAMPLE,ANALYSIS,CORRECTION,ERR-ANALYS,REL-REF were 4077400200033 added . 4077400200034 ENDBIB 32 0 4077400200035 COMMON 4 3 4077400200036 ERR-1 ERR-2 ERR-3 ERR-4 4077400200037 PER-CENT PER-CENT PER-CENT PER-CENT 4077400200038 7. 5. 3. 4. 4077400200039 ENDCOMMON 3 0 4077400200040 DATA 4 1 4077400200041 EN DATA ERR-T ERR-S 4077400200042 MEV MB MB PER-CENT 4077400200043 2.5 170. 20. 2. 4077400200044 ENDDATA 3 0 4077400200045 ENDSUBENT 44 0 4077400299999 SUBENT 40774003 20200515 41874077400300001 BIB 6 8 4077400300002 REACTION (18-AR-36(N,A)16-S-33,,SIG) 4077400300003 SAMPLE Gas in the ionization chamber. 4077400300004 REL-REF (A,11561002,B.J.Toppel+,J,PR,91,473(PA8),1953) 4077400300005 ERR-ANALYS (DATA-ERR) Type on uncertainty is not explained in the 4077400300006 article 4077400300007 STATUS (TABLE) Text, page 60 of 4077400300008 Sov.J.Atom.Energ.Suppl.5,p.56,1957 4077400300009 HISTORY (20191101C) Subent was added. 4077400300010 ENDBIB 8 0 4077400300011 NOCOMMON 0 0 4077400300012 DATA 3 1 4077400300013 EN DATA DATA-ERR 4077400300014 MEV MB PER-CENT 4077400300015 2.5 46. 30. 4077400300016 ENDDATA 3 0 4077400300017 ENDSUBENT 16 0 4077400399999 ENDENTRY 3 0 4077499999999