ENTRY 41395 20110126 41544139500000001 SUBENT 41395001 20110126 41544139500100001 BIB 14 39 4139500100002 TITLE A study of 123-Te(n,alpha) reaction in 2 keV neutron 4139500100003 energy region by means of double-grid ionization 4139500100004 chamber. 4139500100005 AUTHOR (V.P.Vertebnyj, V.A.Vtyurin, A.V.Grebnev, A.Zhak, 4139500100006 I.Chadraabal) 4139500100007 REFERENCE (R,JINR-P3-88-67,198802) Main reference 4139500100008 FACILITY (REAC,4UKRIJI) Reactor WWR-M, activity power 10 MW 4139500100009 INSTITUTE (4ZZZDUB) Vtyurin, Grebnev, Zhak,Chadraabal 4139500100010 (4UKRIJD) Vertebnyj 4139500100011 INC-SOURCE (REAC) Scandium filtered neutron beam 4139500100012 INC-SPECT Mean energy is 2 keV, neutron spectrum width 4139500100013 is 800 eV . Neutron beam diameter 40 mm at sample . 4139500100014 DETECTOR (IOCH) Two-gridded ionization chamber constructed 4139500100015 specially for WWR-M working conditions . 4139500100016 Protected by borated polyethylene (80 mm thickness) 4139500100017 and Cd (1 mm thickness). 4139500100018 IBR-30 reactor in Dubna was used to investigate 4139500100019 backgrouns characteristics of IOCH by means of 4139500100020 Li-6(n,a)T reaction. 4139500100021 MONITOR ((MONIT)62-SM-147(N,A)60-ND-144,,SIG) 4139500100022 MONIT-REF (,Yu.Andzheevski+,R,JINR-P3-80-779,1980) 4139500100023 PART-DET (A) 4139500100024 SAMPLE .Metallic 123-Te in mixture with tellurium oxide 4139500100025 Te-O3, enrichment in 123-Te -(67+-0.1)%, area 80 cm2,4139500100026 thickness (0.53+-0.026) milligram/cm3 . 4139500100027 .Standard sample - samarium oxide Sm2-O3, 4139500100028 Sm-147 content (95.3+-0.1)%. Area 80 cm2, 4139500100029 thickness 0.22+-0.010 milligram/cm2 4139500100030 METHOD (FNB) Neutron beam filter of Sc 924 mm long) with 4139500100031 additions of Co,Ti,Al,U. 4139500100032 Mn filter of 11.16 g/cm**2 thickness was used to define4139500100033 effect from neutrons of energy > 3 keV. 4139500100034 IBR-30 reactor in Dubna was used to investigate 4139500100035 backgrouns characteristics of IOCH by means of 4139500100036 Li-6(n,a)T reaction. 4139500100037 HISTORY (20020307C) + + Compiled at the Centre - CJD + + 4139500100038 (20020311U) Last checking has been done. 4139500100039 (20111026A) Author name was corrected: A Zhak -> A.Zhak4139500100040 BIB information was added. 4139500100041 ENDBIB 39 0 4139500100042 NOCOMMON 0 0 4139500100043 ENDSUBENT 42 0 4139500199999 SUBENT 41395002 20110126 41544139500200001 BIB 5 5 4139500200002 REACTION (52-TE-123(N,A)50-SN-120,,SIG,,SPA) 4139500200003 ANALYSIS (AREA) Alpha-peak areas were used. 4139500200004 ERR-ANALYS (DATA-ERR) Not specified. 4139500200005 STATUS (TABLE) From the text, p.6, of R,JINR-P3-88-67,1988 4139500200006 HISTORY (20111026A) DATA -> DATA-MAX according to text, p.6. 4139500200007 ENDBIB 5 0 4139500200008 NOCOMMON 0 0 4139500200009 DATA 6 1 4139500200010 EN EN-RSL-FW DATA-MAX DATA-ERR MONIT MONIT-ERR 4139500200011 EV EV MICRO-B MICRO-B MICRO-B MICRO-B 4139500200012 2.E+3 8.E+2 1.4 1.3 210. 32.4139500200013 ENDDATA 3 0 4139500200014 ENDSUBENT 13 0 4139500299999 SUBENT 41395003 20110126 41544139500300001 BIB 4 5 4139500300002 REACTION (52-TE-123(N,A)50-SN-120,,SIG,,SPA) 4139500300003 ANALYSIS (AREA) Alpha-peak areas were used. 4139500300004 ERR-ANALYS no information about errors. 4139500300005 STATUS (TABLE) From the text, p.6, of R,JINR-P3-88-67,1988 4139500300006 .Confidence Level 0.99% 4139500300007 ENDBIB 5 0 4139500300008 NOCOMMON 0 0 4139500300009 DATA 3 1 4139500300010 EN EN-RSL-FW DATA-MAX 4139500300011 EV EV MICRO-B 4139500300012 2.E+3 8.E+2 5. 4139500300013 ENDDATA 3 0 4139500300014 ENDSUBENT 13 0 4139500399999 SUBENT 41395004 20110126 41544139500400001 BIB 6 13 4139500400002 REACTION (52-TE-123(N,A),,WID,,AV,DERIV) Average alpha-width of 4139500400003 all resonances of the nuclei 50-Sn-120. 4139500400004 ANALYSIS Upper limit of alpha-wide was derived from measured 4139500400005 cross-section at 2 keV., compared with c-s calculated 4139500400006 by Monte-Carlo method using average alpha-wide value of4139500400007 (10+-3) microeV. Calculated by this wide c-s is about 4139500400008 10 times higer, than measured at this experiment. 4139500400009 ERR-ANALYS no information about errors. 4139500400010 COMMENT Of compiler M.M. EN-RES-MIN, EN-RES-MAX values (used in4139500400011 analysis) are not given in article. 4139500400012 EN-RES-MAX=2.5 keV was assumed by compiler. 4139500400013 STATUS (TABLE) From the text, p.9, of R,JINR-P3-88-67,1988 4139500400014 HISTORY (20110126A) EN-RES=1.17 MeV -> EN-RES-MAX=2. keV. 4139500400015 ENDBIB 13 0 4139500400016 NOCOMMON 0 0 4139500400017 DATA 2 1 4139500400018 EN-RES-MAX DATA-MAX 4139500400019 KEV MICRO-EV 4139500400020 2.5 4. 4139500400021 ENDDATA 3 0 4139500400022 ENDSUBENT 21 0 4139500499999 ENDENTRY 4 0 4139599999999