ENTRY D6067 20160324 D103D606700000001 SUBENT D6067001 20160324 D103D606700100001 BIB 13 67 D606700100002 TITLE Large pre-equilibrium contribution in A + nat.Ni D606700100003 interactions at ~ 8-40 MeV D606700100004 AUTHOR (Abhishek Yadav,Pushpendra P.Singh,Manoj K.Sharma, D606700100005 Devendra P.Singh,Unnati,B.P.Singh,R.Prasad, D606700100006 M.M.Musthafa) D606700100007 INSTITUTE (3INDMUA,3INDCAU) D606700100008 REFERENCE (J,PR/C,78,044606,2008) D606700100009 FACILITY (CYCLO,3INDVEC) D606700100010 SAMPLE The natural Ni samples (prepared by rolling) of D606700100011 thickness ~3.32 mg/cm**2 (measured by the D606700100012 alpha-transmission method) were pasted into D606700100013 aluminium holders. D606700100014 DETECTOR (HPGE) Various standard sources of known strength D606700100015 were used to determine the efficiency of the D606700100016 detector at various source-detector separations. The D606700100017 sample-detector separations were suitably adjusted D606700100018 to minimize the dead time to <10 %. D606700100019 METHOD (ACTIV,GSPEC) An excitation functions for A + nat.Ni D606700100020 have been measured by using the stacked foil D606700100021 activation technique followed by off-line gamma-ray D606700100022 spectrometry. D606700100023 INC-SOURCE A collimated alpha beam ~40 MeV has been allowed to D606700100024 fall on a stack of eight targets for ~12 hours with a D606700100025 beam current ~100 nA. Post-irradiation analysis has D606700100026 been performed by using high resolution, large volume D606700100027 (100 c.c.), precalibrated HPGe detector coupled with D606700100028 a data-acquisition system. D606700100029 ANALYSIS (AREA) The evaporation residues were identified by D606700100030 their characteristic gamma-ray energies, half-lives D606700100031 and branching ratios. Area under the peaks of D606700100032 identified gamma-lines of evaporation residues were D606700100033 used to compute the experimentally measured D606700100034 cross-sections. The experimentally measured Efs are D606700100035 compared with the calculations performed with the D606700100036 theoretical model code ALICE-91, which takes both D606700100037 equilibrium and pre-equilibrium (PE) decay processes D606700100038 into account. The CN calculations in this code are D606700100039 performed by using the Weisskopf-Ewing model, whereas D606700100040 the PE component is simulated by using the D606700100041 geometry- dependent hybrid model. D606700100042 ERR-ANALYS (ERR-1)The geometry-dependent effciency of gamma-ray D606700100043 counting at various source-detector separations has D606700100044 been deduced and fitted with fourth-order polynomial D606700100045 function, where the uncertainty from the fitting is D606700100046 found to be < (or =) 3%. D606700100047 (ERR-2) The errors in efficiency on account of the D606700100048 solid-angle effect have been found to be < (or =) 2%. D606700100049 (ERR-3)The errors expected in the number of nuclei D606700100050 on account of the non-uniform thickness of the sample D606700100051 may be deduced by measuring the thickness at D606700100052 different positions of the sample and are found to D606700100053 be ~1%. D606700100054 (ERR-4) The error from the fluctuations in the beam D606700100055 current was found to be ~3%. D606700100056 (ERR-5) During irradiation of the stack, the beam D606700100057 traverses the thickness of the material , thus D606700100058 reducing the initial beam intensity. It D606700100059 is estimated that the error from this decrease in D606700100060 beam intensity is < (or = )2%. D606700100061 (ERR-T) The overall errors in the present D606700100062 measurement are found to be < (or =) 15%. D606700100063 HISTORY (20081208C)Compiled by Mr.Paresh Prajapati of The D606700100064 M. S. University of Baroda and Dr. S. Ganesan of D606700100065 Reactor Physics Design Division, B.A.R.C, Mumbai. D606700100066 (20160323A) VS. EN=40 MeV in COMMON deleted in D606700100067 002-008 D606700100068 STATUS (APRVD) by Dr. B. P.Singh, AMU, Aligarh, India D606700100069 ENDBIB 67 0 D606700100070 COMMON 5 3 D606700100071 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 D606700100072 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT D606700100073 3. 2. 1. 3. 2. D606700100074 ENDCOMMON 3 0 D606700100075 ENDSUBENT 74 0 D606700199999 SUBENT D6067002 20160324 D103D606700200001 BIB 4 5 D606700200002 REACTION (28-NI-58(A,P)29-CU-61,,SIG) D606700200003 DECAY-DATA (29-CU-61,3.33HR,DG,283.0,0.125, D606700200004 DG,656.0,0.107) D606700200005 STATUS (TABLE)Data taken from the Table.1 and 2 of the paper. D606700200006 HISTORY (20160323A) VS. EN=40 MeV in COMMON deleted. D606700200007 ENDBIB 5 0 D606700200008 NOCOMMON 0 0 D606700200009 DATA 4 8 D606700200010 EN EN-ERR DATA ERR-T D606700200011 MEV MEV MB MB D606700200012 9.0 1.0 150. 17. D606700200013 14.0 0.9 360. 38. D606700200014 17.0 0.9 401. 60. D606700200015 23.0 0.8 201. 32. D606700200016 25.0 0.8 95. 15. D606700200017 29.0 0.8 46. 5. D606700200018 36.0 0.7 16. 2. D606700200019 40.0 0.7 13. 2. D606700200020 ENDDATA 10 0 D606700200021 ENDSUBENT 20 0 D606700299999 SUBENT D6067003 20160324 D103D606700300001 BIB 4 5 D606700300002 REACTION (28-NI-58(A,X)29-CU-60,,SIG) D606700300003 DECAY-DATA (29-CU-60,23.7MIN,DG,826.3,0.219, D606700300004 DG,1332.5,0.88) D606700300005 STATUS (TABLE)Data taken from the Table.1 and 2 of the paper. D606700300006 HISTORY (20160323A) VS. EN=40 MeV in COMMON deleted D606700300007 ENDBIB 5 0 D606700300008 NOCOMMON 0 0 D606700300009 DATA 4 4 D606700300010 EN EN-ERR DATA ERR-T D606700300011 MEV MEV MB MB D606700300012 25.0 0.8 148. 22. D606700300013 29.0 0.8 270.1 40. D606700300014 36.0 0.7 251. 38. D606700300015 40.0 0.7 111. 17. D606700300016 ENDDATA 6 0 D606700300017 ENDSUBENT 16 0 D606700399999 SUBENT D6067004 20160324 D103D606700400001 BIB 4 5 D606700400002 REACTION (28-NI-60(A,X)29-CU-61,,SIG) D606700400003 DECAY-DATA (29-CU-61,3.33HR,DG,283.0,0.125, D606700400004 DG,656.0,0.107) D606700400005 STATUS (TABLE)Data taken from the Table.1 and 2 of the paper. D606700400006 HISTORY (20160323A) VS. EN=40 MeV in COMMON deleted. D606700400007 ENDBIB 5 0 D606700400008 NOCOMMON 0 0 D606700400009 DATA 4 2 D606700400010 EN EN-ERR DATA ERR-T D606700400011 MEV MEV MB MB D606700400012 36.0 0.7 64.0 13. D606700400013 40.0 0.7 191. 33. D606700400014 ENDDATA 4 0 D606700400015 ENDSUBENT 14 0 D606700499999 SUBENT D6067005 20160324 D103D606700500001 BIB 4 5 D606700500002 REACTION (28-NI-60(A,N)30-ZN-63,,SIG) D606700500003 DECAY-DATA (30-ZN-63,38.47MIN,DG,669.86,0.84, D606700500004 DG,926.27,0.66) D606700500005 STATUS (TABLE)Data taken from the Table.1 and 2 of the paper. D606700500006 HISTORY (20160323A) VS. EN=40 MeV in COMMON deleted. D606700500007 ENDBIB 5 0 D606700500008 NOCOMMON 0 0 D606700500009 DATA 4 3 D606700500010 EN EN-ERR DATA ERR-T D606700500011 MEV MEV MB MB D606700500012 29.0 0.8 21. 3. D606700500013 36.0 0.7 4. 0.9 D606700500014 40.0 0.7 1. 0.3 D606700500015 ENDDATA 5 0 D606700500016 ENDSUBENT 15 0 D606700599999 SUBENT D6067006 20160324 D103D606700600001 BIB 4 6 D606700600002 REACTION (28-NI-60(A,2N)30-ZN-62,,SIG) D606700600003 DECAY-DATA (30-ZN-62,9.186HR,DG,548.4,0.152, D606700600004 DG,596.7,0.257) D606700600005 STATUS (TABLE)Data taken from the Table.1 and 2 of the paper. D606700600006 HISTORY (20160323A) VS. EN=40 MeV in COMMON deleted. D606700600007 DECAY-DATA corrected. D606700600008 ENDBIB 6 0 D606700600009 NOCOMMON 0 0 D606700600010 DATA 4 4 D606700600011 EN EN-ERR DATA ERR-T D606700600012 MEV MEV MB MB D606700600013 25.0 0.8 11. 1.4 D606700600014 29.0 0.8 25. 4. D606700600015 36.0 0.7 28. 4. D606700600016 40.0 0.7 17. 2. D606700600017 ENDDATA 6 0 D606700600018 ENDSUBENT 17 0 D606700699999 SUBENT D6067007 20160324 D103D606700700001 BIB 4 6 D606700700002 REACTION (28-NI-61(A,3N)30-ZN-62,,SIG) D606700700003 DECAY-DATA (30-ZN-62,9.186HR,DG,548.4,0.152, D606700700004 DG,596.7,0.257) D606700700005 STATUS (TABLE)Data taken from the Table.1 and 2 of the paper. D606700700006 HISTORY (20160323A) VS. EN=40 MeV in COMMON deleted. D606700700007 DECAY-DATA corrected. D606700700008 ENDBIB 6 0 D606700700009 NOCOMMON 0 0 D606700700010 DATA 4 2 D606700700011 EN EN-ERR DATA ERR-T D606700700012 MEV MEV MB MB D606700700013 36.0 0.7 2. 0.8 D606700700014 40.0 0.7 10. 0.7 D606700700015 ENDDATA 4 0 D606700700016 ENDSUBENT 15 0 D606700799999 SUBENT D6067008 20160324 D103D606700800001 BIB 4 5 D606700800002 REACTION (28-NI-61(A,2N)30-ZN-63,,SIG) D606700800003 DECAY-DATA (30-ZN-63,38.47MIN,DG,669.86,0.84, D606700800004 DG,926.27,0.66) D606700800005 STATUS (TABLE)Data taken from the Table.1 and 2 of the paper D606700800006 HISTORY (20160323A) VS. EN=40 MeV in COMMON deleted. D606700800007 ENDBIB 5 0 D606700800008 NOCOMMON 0 0 D606700800009 DATA 4 3 D606700800010 EN EN-ERR DATA ERR-T D606700800011 MEV MEV MB MB D606700800012 29.0 0.8 124. 18. D606700800013 36.0 0.7 151. 27. D606700800014 40.0 0.7 75. 11. D606700800015 ENDDATA 5 0 D606700800016 ENDSUBENT 15 0 D606700899999 ENDENTRY 8 0 D606799999999