ENTRY B0134 20011220 0000B013400000001 SUBENT B0134001 20011220 0000B013400100001 BIB 12 46 B013400100002 TITLE Cross Section For the Production of Beryllium-7 B013400100003 From Lithium-6, Lithium-6 Interactions. B013400100004 AUTHOR (L.RUBY, R.V.PYLE, Y.C.WONG) B013400100005 INSTITUTE (1USABRK) B013400100006 REFERENCE (J,NSE,63,197,1977) B013400100007 FACILITY (CYCLO,1USABRK) B013400100008 DETECTOR (NAICR) B013400100009 The Targets were Placed Between Two Summed Na-I(TL) B013400100010 Detectors. B013400100011 SAMPLE Targets of Li-6 Fluoride, Ranging in Thickness B013400100012 Between 650 and 800 Microgram/Cm**2. Li-6 Fluoride, B013400100013 Of 99.32% Li-6 Enrichment, was Evaporated onto B013400100014 Aluminium Disks. B013400100015 METHOD (EXTB,SITA,EDEG,BCINT) B013400100016 Irradiations were Carried Out with a 6.0 MeV B013400100017 Li-6 Ion Beam. Lower Energies were Obtained by B013400100018 Al-Degrader Foils. Range and Stopping-Power Data B013400100019 For Li-6 in Al were Taken from Northcliffe and B013400100020 Schilling, Nucl.Data Tables A7,233(1970). B013400100021 Similar Data For Li-6 in Li-Fluoride by B013400100022 P.G.Steward, Report Ucrl-18127(BERKELY,1968). B013400100023 The be-7 Activity was Compared with a be-7 B013400100024 Reference Standard, Calibrated on a Geli-Detector B013400100025 With Known Efficiency. B013400100026 CORRECTION The Measured be-7 Activities of the Foils were B013400100027 Corrected Back to the Time of Irradiation. B013400100028 A Production of be-7 Due to Reactions with B013400100029 Li-7, F-19 and Al-27 was Negligible. Corrections in B013400100030 The Energy Scale Due to the Energy Loss of Li-6 in the B013400100031 Target Result in an Energy Shift of the Experimental B013400100032 Points. B013400100033 ERR-ANALYS (ERR-T) The Errors of the Cross Sections are 5-10%. B013400100034 The Main Contributions to the Standard Error are B013400100035 Uncertainties in the Calibration of the Reference B013400100036 Standard (+-3%), in the Beam Charge Collected (+-1%), B013400100037 In the Target Thicknesses (+- 1%), and Statistical B013400100038 Errors in the Target Activities (+-1%). B013400100039 ANALYSIS The Given Cross Sections are Weighted-Average B013400100040 Values Obtained from an Error-Weighted Average of B013400100041 Two Determinations at Each Incident Energy. B013400100042 HISTORY (19800416C)Nekw B013400100043 (19940719A) Some Corrections have Been Included by B013400100044 CAJAD B013400100045 (19981204A) Reaction Line is Corrected. Converted to B013400100046 Lower Case. B013400100047 (20011010U) Last checking has been done. B013400100048 ENDBIB 46 0 B013400100049 NOCOMMON 0 0 B013400100050 ENDSUBENT 49 0 B013400199999 SUBENT B0134002 20011220 0000B013400200001 BIB 3 4 B013400200002 REACTION (3-LI-6(3-LI-6,N+A)4-BE-7,,SIG,,,EXP) B013400200003 RAD-DET (4-BE-7,DG) B013400200004 DECAY-DATA (4-BE-7,53.3D,DG,478.,0.103) B013400200005 Counting Started a Few Days After the Irradiation. B013400200006 ENDBIB 4 0 B013400200007 NOCOMMON 0 0 B013400200008 DATA 3 3 B013400200009 EN DATA ERR-T B013400200010 MEV MB MB B013400200011 1.6 3.89 0.39 B013400200012 3.5 93.4 6. B013400200013 5. 178. 6.4 B013400200014 ENDDATA 5 0 B013400200015 ENDSUBENT 14 0 B013400299999 ENDENTRY 2 0 B013499999999