ENTRY 30051 20150529 31703005100000001 SUBENT 30051001 20150529 31703005100100001 BIB 19 58 3005100100002 TITLE Cross sections for (n,2n),(n,a) and (n,p) reactions in 3005100100003 rare earth isotopes at 14.2 MeV 3005100100004 AUTHOR (P.Rama Prasad, J.Rama Rao, E.Kondaiah) 3005100100005 INSTITUTE (3INDAUW) 3005100100006 REFERENCE (J,NP/A,125,57,1969) 3005100100007 (J,IPA,12,640,1974) Same values as NP/A article 3005100100008 (C,68BOMBAY,(2),128,1968) Same values as NP/A article 3005100100009 (C,67KANPUR,355,1967) Prelim results, cfd others, table3005100100010 (P,BARC-401,30,1969) Progress report, numerical values 3005100100011 SAMPLE Natural samples in oxide form with chemical purity 3005100100012 greater than 99.9%, encapsulated in polyethylene 3005100100013 cylinders 0.5 cm in diameter and 2-3 cm height 3005100100014 MONITOR ((MONIT1)13-AL-27(N,A)11-NA-24,,SIG) 3005100100015 MONIT-REF ((MONIT1),D.G.Gardner+,J,NP,60,49,1964) 3005100100016 DECAY-MON ((MONIT1)11-NA-24,15.HR,DG,1370.) 3005100100017 FACILITY (CCW,3INDTAT) 3005100100018 INC-SOURCE (D-T) Neutron flux of the order of 10.**9 n/cm2/sec 3005100100019 METHOD (ACTIV) Half-life and characteristic gamma-ray 3005100100020 spectrum were both studied. 3005100100021 From gamma-ray spectrum, a prominent photopeak, 3005100100022 characteristic of the product nucleus was selected 3005100100023 for analysis. 3005100100024 Samples put in a plane perpendicular to deuteron beam. 3005100100025 DETECTOR (NAICR) Irradiated samples were measured with a well 3005100100026 type NaI(Tl) detector 6.5 cm x 6.5 cm in size. 3005100100027 Samples were placed in a well 0.8 cm in diameter and 3005100100028 3.2 cm deep. 3005100100029 (HORBU) Embedded in paraffin used to monitoring 3005100100030 neutron flux. 3005100100031 PART-DET (DG) Decay gammas 3005100100032 CORRECTION Data corrected for source absorption and cascading 3005100100033 effects as suggested by Tiwari et al. (1966) 3005100100034 ERR-ANALYS (ERR-T) Root-mean-square error corresponding to the 3005100100035 following sources deduce photopeak area (Errors in 3005100100036 internal conversion coefficients, half-lives and 3005100100037 absolute intensities of gamma rays chosen not 3005100100038 included): 3005100100039 (MONIT1-ERR) monitor cross section (~5%)3005100100040 (ERR-S,,4.) statistics in the photopeak areas (<4%)3005100100041 (ERR-1,5.,10.) photopeak efficiencies 3005100100042 (5% for Eg>0.28 MeV, 7-10% for Eg<0.28 MeV)3005100100043 (ERR-2,,1.) irradiation time (<1%)3005100100044 (ERR-3,,1.) time between EOB and beginning of counting 3005100100045 (<1%)3005100100046 (ERR-4,,1.) time between EOB and end of counting (<1%)3005100100047 COMMENT Total and photopeak efficiencies for gamma rays for the3005100100048 well-type crystal were taken from Tiwari et al.(1966) 3005100100049 REL-REF (M,,P.N.Tiwari+,J,NIM,42,118,1966) 3005100100050 Correction procedure and efficiencies 3005100100051 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100100052 HISTORY (19681125R) Data from E.Kondaiah, private communication3005100100053 (19690211C) Data compiled into DASTAR 3005100100054 (19891123A) VOF. ISO-QUANT -> REACTION, 3005100100055 STANDARD -> MONITOR. MONIT-REF and DECAY-DATA added 3005100100056 (20080305A) BIB section updated 3005100100057 (20140625A) On. REFERENCE: IPA added; ERR-ANALYS update3005100100058 MONIT -> MONIT1 3005100100059 (20150522A) VS. REACTION corrected in subent 009. 3005100100060 ENDBIB 58 0 3005100100061 COMMON 4 3 3005100100062 EN EN-RSL MONIT1 MONIT1-ERR 3005100100063 MEV MEV MB MB 3005100100064 14.2 0.2 115. 5. 3005100100065 ENDCOMMON 3 0 3005100100066 ENDSUBENT 65 0 3005100199999 SUBENT 30051002 20140625 31653005100200001 BIB 4 5 3005100200002 REACTION (60-ND-142(N,2N)60-ND-141-M,,SIG) 3005100200003 DECAY-DATA (60-ND-141-M,63.SEC,DG,755.) 3005100200004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100200005 HISTORY (19701210T) Transformed from DASTAR-00752 3005100200006 (20140625A) On. DATA-ERR -> ERR-T 3005100200007 ENDBIB 5 0 3005100200008 NOCOMMON 0 0 3005100200009 DATA 2 1 3005100200010 DATA ERR-T 3005100200011 MB MB 3005100200012 628. 63. 3005100200013 ENDDATA 3 0 3005100200014 ENDSUBENT 13 0 3005100299999 SUBENT 30051003 20140625 31653005100300001 BIB 5 11 3005100300002 REACTION (60-ND-142(N,2N)60-ND-141-G,,SIG,,,DERIV) 3005100300003 DECAY-DATA (60-ND-141-G,2.5HR,DG,130.) 3005100300004 ANALYSIS Cross section obtained from total cross section by 3005100300005 subtracting the independently determined isomeric 3005100300006 state cross section 3005100300007 STATUS (DEP,30051004) 142Nd(n,2n)141Nd cross section 3005100300008 (DEP,30051002) 142Nd(n,2n)141mNd cross section 3005100300009 (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100300010 HISTORY (19701210T) Transformed from DASTAR-00752 3005100300011 (19891123A) VOF.-Reaction corrected+status added 3005100300012 (20140625A) On. DATA-ERR -> ERR-T 3005100300013 ENDBIB 11 0 3005100300014 NOCOMMON 0 0 3005100300015 DATA 2 1 3005100300016 DATA ERR-T 3005100300017 MB MB 3005100300018 1447. 210. 3005100300019 ENDDATA 3 0 3005100300020 ENDSUBENT 19 0 3005100399999 SUBENT 30051004 20140625 31653005100400001 BIB 4 7 3005100400002 REACTION (60-ND-142(N,2N)60-ND-141,,SIG) 3005100400003 COMMENT Obtained after allowing isomeric state to decay 3005100400004 completely to the ground state 3005100400005 STATUS (TABLE) Text (p61) of Nucl.Phys.A125(1969)57 3005100400006 HISTORY (19701210C) Data taken from NP 125,57,1969 3005100400007 (19891124A) VOF.-Reaction corrected- 3005100400008 (20140625A) On. DATA-ERR -> ERR-T 3005100400009 ENDBIB 7 0 3005100400010 NOCOMMON 0 0 3005100400011 DATA 2 1 3005100400012 DATA ERR-T 3005100400013 MB MB 3005100400014 2075. 208. 3005100400015 ENDDATA 3 0 3005100400016 ENDSUBENT 15 0 3005100499999 SUBENT 30051005 20140625 31653005100500001 BIB 4 5 3005100500002 REACTION (62-SM-144(N,2N)62-SM-143-M,,SIG) 3005100500003 DECAY-DATA (62-SM-143-M,1.MIN,DG,754.) 3005100500004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100500005 HISTORY (19701210T) Transformed from DASTAR-00752 3005100500006 (20140625A) On. DATA-ERR -> ERR-T 3005100500007 ENDBIB 5 0 3005100500008 NOCOMMON 0 0 3005100500009 DATA 2 1 3005100500010 DATA ERR-T 3005100500011 MB MB 3005100500012 554. 55. 3005100500013 ENDDATA 3 0 3005100500014 ENDSUBENT 13 0 3005100599999 SUBENT 30051006 20140625 31653005100600001 BIB 4 5 3005100600002 REACTION (62-SM-144(N,2N)62-SM-143-G,,SIG) 3005100600003 DECAY-DATA (62-SM-143-G,9.0MIN,DG,511.) 3005100600004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100600005 HISTORY (19701210T) Transformed from DASTAR-00752 3005100600006 (20140625A) On. DATA-ERR -> ERR-T 3005100600007 ENDBIB 5 0 3005100600008 NOCOMMON 0 0 3005100600009 DATA 2 1 3005100600010 DATA ERR-T 3005100600011 MB MB 3005100600012 761. 107. 3005100600013 ENDDATA 3 0 3005100600014 ENDSUBENT 13 0 3005100699999 SUBENT 30051007 20140625 31653005100700001 BIB 4 5 3005100700002 REACTION (60-ND-148(N,2N)60-ND-147,,SIG) 3005100700003 DECAY-DATA (60-ND-147,11.0D,DG,513.0) 3005100700004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100700005 HISTORY (19701210T) Transformed from DASTAR-00752 3005100700006 (20140625A) On. DATA-ERR -> ERR-T 3005100700007 ENDBIB 5 0 3005100700008 NOCOMMON 0 0 3005100700009 DATA 2 1 3005100700010 DATA ERR-T 3005100700011 MB MB 3005100700012 1626. 200. 3005100700013 ENDDATA 3 0 3005100700014 ENDSUBENT 13 0 3005100799999 SUBENT 30051008 20140625 31653005100800001 BIB 4 6 3005100800002 REACTION (63-EU-153(N,2N)63-EU-152-M2,,SIG) 3005100800003 DECAY-DATA (63-EU-152-M2,96.MIN,DG,90.0) 3005100800004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100800005 HISTORY (19701210T) Transformed from DASTAR-00752 3005100800006 (19891123A) VOF.-REACTION corrected 3005100800007 (20140625A) On. DATA-ERR -> ERR-T 3005100800008 ENDBIB 6 0 3005100800009 NOCOMMON 0 0 3005100800010 DATA 2 1 3005100800011 DATA ERR-T 3005100800012 MB MB 3005100800013 91. 12. 3005100800014 ENDDATA 3 0 3005100800015 ENDSUBENT 14 0 3005100899999 SUBENT 30051009 20150529 31703005100900001 BIB 4 7 3005100900002 REACTION (63-EU-153(N,2N)63-EU-152-M1,,SIG) 3005100900003 DECAY-DATA (63-EU-152-M1,9.3HR,DG,122.0) 3005100900004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005100900005 HISTORY (19701211T) Transformed from DASTAR-00752 3005100900006 (19891123A) VOF.-Reaction corrected - 3005100900007 (20140625A) On. DATA-ERR -> ERR-T 3005100900008 (20150522A) VS. REACTION corrected: M+ deleted. 3005100900009 ENDBIB 7 0 3005100900010 NOCOMMON 0 0 3005100900011 DATA 2 1 3005100900012 DATA ERR-T 3005100900013 MB MB 3005100900014 652. 90. 3005100900015 ENDDATA 3 0 3005100900016 ENDSUBENT 15 0 3005100999999 SUBENT 30051010 20140625 31653005101000001 BIB 7 17 3005101000002 REACTION (65-TB-159(N,2N)65-TB-158-M,,SIG) 3005101000003 ANALYSIS Since Tb-158m decays to the ground state through a 3005101000004 highly converted (m3) isomeric transition of energy 3005101000005 111 keV, the prominent K X-ray peak of energy 45 keV 3005101000006 was taken for analysis. 3005101000007 Cross section was determined using the values 56+/-3 3005101000008 and 106+/-10 for the K-shell and total internal 3005101000009 conversion coefficients and 0.92 for the 3005101000010 K-fluorescent yield. 3005101000011 DECAY-DATA (65-TB-158-M,11.0SEC,DG,111.) 3005101000012 MONITOR ((MONIT2)13-AL-27(N,P)12-MG-27,,SIG) 3005101000013 Standard cross section determined earlier relative to 3005101000014 the Al27(n,a)Na24 monitor reaction 3005101000015 DECAY-MON ((MONIT2)12-MG-27,9.5MIN) 3005101000016 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101000017 HISTORY (19701211T) Transformed from DASTAR-00752 3005101000018 (20140625A) On. DATA-ERR -> ERR-T 3005101000019 ENDBIB 17 0 3005101000020 COMMON 2 3 3005101000021 MONIT2 MONIT2-ERR 3005101000022 MB MB 3005101000023 74. 7. 3005101000024 ENDCOMMON 3 0 3005101000025 DATA 2 1 3005101000026 DATA ERR-T 3005101000027 MB MB 3005101000028 524. 70. 3005101000029 ENDDATA 3 0 3005101000030 ENDSUBENT 29 0 3005101099999 SUBENT 30051011 20140625 31653005101100001 BIB 4 5 3005101100002 REACTION (64-GD-160(N,2N)64-GD-159,,SIG) 3005101100003 DECAY-DATA (64-GD-159,18.HR,DG,365.) 3005101100004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101100005 HISTORY (19701211T) Converted from DASTAR-00752 3005101100006 (20140625A) On. DATA-ERR -> ERR-T 3005101100007 ENDBIB 5 0 3005101100008 NOCOMMON 0 0 3005101100009 DATA 2 1 3005101100010 DATA ERR-T 3005101100011 MB MB 3005101100012 1675. 160. 3005101100013 ENDDATA 3 0 3005101100014 ENDSUBENT 13 0 3005101199999 SUBENT 30051012 20140625 31653005101200001 BIB 5 11 3005101200002 REACTION (68-ER-162(N,2N)68-ER-161,,SIG) 3005101200003 DECAY-DATA (68-ER-161,3.1HR,DG) 3005101200004 ANALYSIS Since the two close-lying 0.827 and 0.865 MeV gamma 3005101200005 lines could not be resolved by the scintillation 3005101200006 detector, their combined photopeak was used for 3005101200007 analysis uncertainties in decay scheme were included 3005101200008 in the estimate of error associated with cross 3005101200009 section. 3005101200010 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101200011 HISTORY (19701211T) Transformed from DASTAR-00752 3005101200012 (20140625A) On. DATA-ERR -> ERR-T 3005101200013 ENDBIB 11 0 3005101200014 NOCOMMON 0 0 3005101200015 DATA 2 1 3005101200016 DATA ERR-T 3005101200017 MB MB 3005101200018 1870. 300. 3005101200019 ENDDATA 3 0 3005101200020 ENDSUBENT 19 0 3005101299999 SUBENT 30051013 20140625 31653005101300001 BIB 4 5 3005101300002 REACTION (60-ND-144(N,A)58-CE-141,,SIG) 3005101300003 DECAY-DATA (58-CE-141,33.D,DG,145.) 3005101300004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101300005 HISTORY (19701211T) Transformed from DASTAR-00753 3005101300006 (20140625A) On. DATA-ERR -> ERR-T 3005101300007 ENDBIB 5 0 3005101300008 NOCOMMON 0 0 3005101300009 DATA 2 1 3005101300010 DATA ERR-T 3005101300011 MB MB 3005101300012 9.0 1.7 3005101300013 ENDDATA 3 0 3005101300014 ENDSUBENT 13 0 3005101399999 SUBENT 30051014 20140625 31653005101400001 BIB 4 5 3005101400002 REACTION (63-EU-151(N,A)61-PM-148-M,,SIG) 3005101400003 DECAY-DATA (61-PM-148-M,43.D,DG,726.) 3005101400004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101400005 HISTORY (19701211T) Transformed from DASTAR-00753 3005101400006 (20140625A) On. DATA-ERR -> ERR-T 3005101400007 ENDBIB 5 0 3005101400008 NOCOMMON 0 0 3005101400009 DATA 2 1 3005101400010 DATA ERR-T 3005101400011 MB MB 3005101400012 19.1 3.6 3005101400013 ENDDATA 3 0 3005101400014 ENDSUBENT 13 0 3005101499999 SUBENT 30051015 20140625 31653005101500001 BIB 4 5 3005101500002 REACTION (64-GD-156(N,A)62-SM-153,,SIG) 3005101500003 DECAY-DATA (62-SM-153,47.HR,DG,103.) 3005101500004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101500005 HISTORY (19701211T) Previously DASTAR-00753 3005101500006 (20140625A) On. DATA-ERR -> ERR-T 3005101500007 ENDBIB 5 0 3005101500008 NOCOMMON 0 0 3005101500009 DATA 2 1 3005101500010 DATA ERR-T 3005101500011 MB MB 3005101500012 8.5 1.3 3005101500013 ENDDATA 3 0 3005101500014 ENDSUBENT 13 0 3005101599999 SUBENT 30051016 20140625 31653005101600001 BIB 4 5 3005101600002 REACTION (64-GD-158(N,A)62-SM-155,,SIG) 3005101600003 DECAY-DATA (62-SM-155,22.0MIN,DG,105.) 3005101600004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101600005 HISTORY (19701211T) Previously Dastar-00753 3005101600006 (20140625A) On. DATA-ERR -> ERR-T 3005101600007 ENDBIB 5 0 3005101600008 NOCOMMON 0 0 3005101600009 DATA 2 1 3005101600010 DATA ERR-T 3005101600011 MB MB 3005101600012 2.4 0.4 3005101600013 ENDDATA 3 0 3005101600014 ENDSUBENT 13 0 3005101699999 SUBENT 30051017 20140625 31653005101700001 BIB 5 9 3005101700002 REACTION (67-HO-165(N,A)65-TB-162,,SIG) 3005101700003 DECAY-DATA (65-TB-162,8.MIN,DG) 3005101700004 ANALYSIS Decay scheme of Tb162 is not well established. 3005101700005 As the three close-lying 0.805,0.881 And 0.887 MeV 3005101700006 gamma rays could not be well resolved, the combined 3005101700007 photopeak was used for the cross-section measurement. 3005101700008 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101700009 HISTORY (19701211T) previously DASTAR-00753 3005101700010 (20140625A) On. DATA-ERR -> ERR-T 3005101700011 ENDBIB 9 0 3005101700012 NOCOMMON 0 0 3005101700013 DATA 2 1 3005101700014 DATA ERR-T 3005101700015 MB MB 3005101700016 1.2 0.4 3005101700017 ENDDATA 3 0 3005101700018 ENDSUBENT 17 0 3005101799999 SUBENT 30051018 20140625 31653005101800001 BIB 4 5 3005101800002 REACTION (62-SM-148(N,P)61-PM-148-M,,SIG) 3005101800003 DECAY-DATA (61-PM-148-M,43.D,DG,726.) 3005101800004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101800005 HISTORY (19701211T) previously DASTAR-00754 3005101800006 (20140625A) On. DATA-ERR -> ERR-T 3005101800007 ENDBIB 5 0 3005101800008 NOCOMMON 0 0 3005101800009 DATA 2 1 3005101800010 DATA ERR-T 3005101800011 MB MB 3005101800012 18.8 4.4 3005101800013 ENDDATA 3 0 3005101800014 ENDSUBENT 13 0 3005101899999 SUBENT 30051019 20140625 31653005101900001 BIB 5 10 3005101900002 REACTION (62-SM-148(N,P)61-PM-148-G,,SIG) 3005101900003 DECAY-DATA (61-PM-148-G,5.4D,DG,551.) 3005101900004 ANALYSIS Since half-lives of ground and isomeric states of 3005101900005 Pm148 are comparable, ground state cross section was 3005101900006 calculated using modified expression which accounts 3005101900007 for events in which ground state is formed from the 3005101900008 7% decay of the isomeric state. 3005101900009 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005101900010 HISTORY (19701211T) Previously DASTAR-00754 3005101900011 (20140625A) On. DATA-ERR -> ERR-T 3005101900012 ENDBIB 10 0 3005101900013 NOCOMMON 0 0 3005101900014 DATA 2 1 3005101900015 DATA ERR-T 3005101900016 MB MB 3005101900017 14.3 2.3 3005101900018 ENDDATA 3 0 3005101900019 ENDSUBENT 18 0 3005101999999 SUBENT 30051020 20140625 31653005102000001 BIB 4 5 3005102000002 REACTION (65-TB-159(N,P)64-GD-159,,SIG) 3005102000003 DECAY-DATA (64-GD-159,18.HR,DG,365.) 3005102000004 STATUS (TABLE) Table 1 of Nucl.Phys.A125(1969)57 3005102000005 HISTORY (19701211T) Previously DASTAR-00754 3005102000006 (20140625A) On. DATA-ERR -> ERR-T 3005102000007 ENDBIB 5 0 3005102000008 NOCOMMON 0 0 3005102000009 DATA 2 1 3005102000010 DATA ERR-T 3005102000011 MB MB 3005102000012 15.8 2.5 3005102000013 ENDDATA 3 0 3005102000014 ENDSUBENT 13 0 3005102099999 ENDENTRY 20 0 3005199999999