ENTRY 22286 20140822 22402228600000001 SUBENT 22286001 20140822 22402228600100001 BIB 14 42 2228600100002 REFERENCE (J,NSE,115,71,1993) 2228600100003 TITLE -Determination of the excitation function of the (n,xt)2228600100004 process on beryllium via activation in diverse neutron2228600100005 fields and unfolding code calculations. 2228600100006 AUTHOR (R.Woelfle,A.Suhaimi,S.M.Qaim) 2228600100007 INSTITUTE (2GERJUL) 2228600100008 FACILITY (CYCLO,2GERJUL) The Julich Isochronous Cyclotron 2228600100009 delivered deuteron beams of 17.5, 20.0, 22.5, 25.0, 2228600100010 27.5 and 30.0 MeV, with beam currents in the range 2228600100011 0.4 - 3 micro-Amps. 2228600100012 INC-SOURCE (D-BE) Break-up neutron spectra from the d + Be reac- 2228600100013 tion were used. 2228600100014 INC-SPECT .Continuous neutron spectra from the thick Be target. 2228600100015 METHOD (CHSEP) Tritium counting techniques. Tritium was sepa- 2228600100016 rated from the irradiated samples, after addition of 2228600100017 H2 carrier, by repeated vacuum extraction at 1150 deg 2228600100018 Celsius. 2228600100019 DETECTOR (PROPC) The tritium activities were counted in a 2228600100020 proportional gas counting tube in an anticoincidence 2228600100021 arrangement. 2228600100022 .The monitor activities were determined via gamma-ray 2228600100023 spectrometry. 2228600100024 SAMPLE .The beryllium sample, 99.8% purity, consisted 2228600100025 of two parts, each having the dimensions 1 by 1 by 2228600100026 0.15 cm, between which a set of 12 flux monitor foils 2228600100027 was inserted. Additional aluminum and cobalt monitor 2228600100028 foils were placed at the front and back of the beryl- 2228600100029 lium sample. The distance between the front of the 2228600100030 sample and the back of the neutron source was 4.5 cm. 2228600100031 CORRECTION .The data were corrected for triton loss via the recoil2228600100032 process, using a Monte Carlo code. Corrections were 2228600100033 also applied for tritons entering the beryllium sample2228600100034 from the aluminum cover foils. These corrections 2228600100035 amounted to 2.5 - 7.5%. 2228600100036 ERR-ANALYS (DATA-ERR) Total errors. 2228600100037 STATUS (TABLE) .Data taken from Tbl. II of NSE,115,71. 2228600100038 HISTORY (19950903C) N.O. 2228600100039 (19951213E) 2228600100040 (20140822A) SD: Updated to new date formats,lower case.2228600100041 Corrections according last EXFOR rules and Dict. 2228600100042 Dataset in Subent 2 split in two according to 2228600100043 analysis. FLAG was deleted. 2228600100044 ENDBIB 42 0 2228600100045 NOCOMMON 0 0 2228600100046 ENDSUBENT 45 0 2228600199999 SUBENT 22286002 20140822 22402228600200001 BIB 3 9 2228600200002 REACTION 1(4-BE-9(N,X)1-H-3,,SIG) 2228600200003 2(4-BE-9(N,X)1-H-3,,SIG) 2228600200004 ANALYSIS 1(UNFLD) Cross sections for different energy bins were 2228600200005 obtained with unfolding techniques, using the infor- 2228600200006 mation from the runs at the 6 different deuteron ener-2228600200007 gies. The SAND-II iterative code was used. 2228600200008 2(LEAST) Generalized Least-Squares Method, were used. 2228600200009 HISTORY (20140822A) SD: Dataset split in two according to 2228600200010 ANALYSIS. 2228600200011 ENDBIB 9 0 2228600200012 COMMON 1 3 2228600200013 EN-RSL-FW 2228600200014 MEV 2228600200015 1.0000E+00 2228600200016 ENDCOMMON 3 0 2228600200017 DATA 5 20 2228600200018 EN DATA 1DATA-ERR 1DATA 2DATA-ERR 2 2228600200019 MEV MB PER-CENT MB PER-CENT 2228600200020 1.1000E+01 0.0000E+00 1.8000E-01 4.9700E+01 2228600200021 1.2000E+01 1.7400E+00 6.2000E+00 1.8000E+00 6.1000E+00 2228600200022 1.3000E+01 1.1780E+01 5.3000E+00 1.2070E+01 5.2000E+00 2228600200023 1.4000E+01 1.8800E+01 4.8000E+00 1.9140E+01 4.6000E+00 2228600200024 1.5000E+01 2.4540E+01 4.3000E+00 2.4850E+01 4.2000E+00 2228600200025 1.6000E+01 2.7500E+01 4.0000E+00 2.7660E+01 3.9000E+00 2228600200026 1.7000E+01 2.9250E+01 4.3000E+00 2.9180E+01 4.2000E+00 2228600200027 1.8000E+01 3.0110E+01 4.4000E+00 2.9880E+01 4.3000E+00 2228600200028 1.9000E+01 3.0020E+01 4.9000E+00 3.0390E+01 4.8000E+00 2228600200029 2.0000E+01 3.1810E+01 8.0000E+00 3.0860E+01 7.8000E+00 2228600200030 2.1000E+01 3.7640E+01 8.4000E+00 3.6870E+01 8.1000E+00 2228600200031 2.2000E+01 4.1870E+01 8.0000E+00 4.1330E+01 8.0000E+00 2228600200032 2.3000E+01 4.5520E+01 8.1000E+00 4.4590E+01 7.9000E+00 2228600200033 2.4000E+01 4.7330E+01 8.5000E+00 4.6510E+01 8.4000E+00 2228600200034 2.5000E+01 4.7460E+01 9.9000E+00 4.7190E+01 9.4000E+00 2228600200035 2.6000E+01 4.6820E+01 1.0000E+01 4.6490E+01 1.0000E+01 2228600200036 2.7000E+01 4.3770E+01 1.6000E+01 4.4540E+01 1.6000E+01 2228600200037 2.8000E+01 4.0470E+01 2.2000E+01 4.1290E+01 2.2000E+01 2228600200038 2.9000E+01 3.5960E+01 3.5000E+01 3.6790E+01 3.5000E+01 2228600200039 3.0000E+01 3.1200E+01 5.0000E+01 3.1020E+01 5.0000E+01 2228600200040 ENDDATA 22 0 2228600200041 ENDSUBENT 40 0 2228600299999 ENDENTRY 2 0 2228699999999