ENTRY A0332 20220613 A101A033200000001 SUBENT A0332001 20220613 A101A033200100001 BIB 10 23 A033200100002 TITLE 51V(p,n)51Cr reaction from Ep 1.9 to 4.5 MeV A033200100003 AUTHOR (S.Kailas,S.K.Gupta,S.S.Kerekatte,C.V.Fernandes) A033200100004 REFERENCE (J,PRM,24,629,1985) A033200100005 INSTITUTE (3INDTRM) A033200100006 FACILITY (VDG,3INDTRM) A033200100007 METHOD (BCINT) A033200100008 COMMENT /By authors/ Having obtained the revised sigma p,n A033200100009 values we computed the thermonuclear reaction rates A033200100010 as per the procedure discussed by Kailas and Mehta. A033200100011 The new TNRR values are considerably smaller than the A033200100012 earlier ones, reflecting the fact that the cross- A033200100013 sections from the present work are considerably A033200100014 smaller as compared to the earlier measurement A033200100015 (Sekharan et al.,1966; see REL-REF). A033200100016 REL-REF (D,,S.Kailas+,J,PRM,7,6,1976) The thermonuclear A033200100017 reaction rates. A033200100018 ERR-ANALYS (ERR-2) Uncertainty in neutron efficiency A033200100019 (ERR-3) The error in the current integrator. A033200100020 (ERR-4) The typical error in the target thickness. A033200100021 HISTORY (19870123C) By CAJAD. A033200100022 (20220613A) SD:Updated to new date formats, lower case.A033200100023 Corrections in all Subents. Subent 004 added. A033200100024 BIB updated. BIB updated. A033200100025 ENDBIB 23 0 A033200100026 COMMON 3 3 A033200100027 ERR-2 ERR-3 ERR-4 A033200100028 PER-CENT PER-CENT PER-CENT A033200100029 10. 2. 10. A033200100030 ENDCOMMON 3 0 A033200100031 ENDSUBENT 30 0 A033200199999 SUBENT A0332002 20220613 A101A033200200001 BIB 9 21 A033200200002 REACTION (23-V-51(P,N)24-CR-51,,SIG) A033200200003 DECAY-DATA (24-CR-51,27.7D,DG,320.,0.0255) A033200200004 DETECTOR (GELI) The resultant activity of 51Cr was counted in a A033200200005 100 cm3 Ge(Li) detector. A033200200006 METHOD (ACTIV) A033200200007 ERR-ANALYS (ERR-T) The overall uncertainty A033200200008 The overall uncertainty in the cross sections values A033200200009 range from 12% at Ep ~ 4.1 MeV to 15% at Ep ~ 2.9 MeV A033200200010 (ERR-1) The error in the 320 keV gamma rays efficiency A033200200011 SAMPLE (23-V-51,NAT=0.9976) Different freshly prepared V-51 A033200200012 samples covered with a thin gold layer (15 ug/cm2). A033200200013 A a thin Pb sheet (0.8 mm thick) was used on the A033200200014 detector case to reduce the low energy background. A033200200015 REL-REF (A,C0627003,J.L.Zyskind+,J,NP/A,343,295,1980) A033200200016 (D,,K.K.Sekharan+,J,IJP/A,8,93,1966) A033200200017 STATUS (CURVE) Fig.1 from Pramana,24(1985)629 A033200200018 (energy values are from the text on p.630) A033200200019 (COREL,A0332003) on-line measurement A033200200020 HISTORY (20220613A) SD: SF9=EXP deleted from REACTION code. A033200200021 EN-ERR deleted (energy were taken from the A033200200022 text on p.630. A033200200023 ENDBIB 21 0 A033200200024 COMMON 2 3 A033200200025 EN-ERR ERR-1 A033200200026 MEV PER-CENT A033200200027 0.02 5. A033200200028 ENDCOMMON 3 0 A033200200029 DATA 3 4 A033200200030 EN DATA ERR-T A033200200031 MEV MB MB A033200200032 2.9 35. 4. A033200200033 3.4 78. 8. A033200200034 3.9 139. 16. A033200200035 4.1 160. 15. A033200200036 ENDDATA 6 0 A033200200037 ENDSUBENT 36 0 A033200299999 SUBENT A0332003 20220613 A101A033200300001 BIB 8 21 A033200300002 REACTION (23-V-51(P,N)24-CR-51,,SIG) A033200300003 DETECTOR (D4PI) The 4pi geometry neutron counter developed at A033200300004 Trombay. A033200300005 (BF3) 12 BF3 counters monitored the performance of the A033200300006 neutron counter A033200300007 SAMPLE (23-V-51,NAT=0.9976) The 51V targets were prepared by A033200300008 evaporating natural vanadium metal (51V abundance A033200300009 99.76%) on to thick tantalum discs. A033200300010 REL-REF (A,C0627003,J.L.Zyskind+,J,NP/A,343,295,1980) A033200300011 (D,,K.K.Sekharan+,J,IJP/A,8,93,1966) A033200300012 METHOD (SITA,BCINT) A033200300013 ERR-ANALYS (ERR-T) The overall uncertainty A033200300014 The overall uncertainty in the cross sections values A033200300015 range from 13% at Ep ~ 2 MeV to 15% at Ep ~ 4.5 MeV A033200300016 (ERR-1,6.,10.) The uncertainty in detector efficiency A033200300017 10% at Ep ~ 1. MeV and 6% at Ep ~ 5 eV A033200300018 STATUS (CURVE) Fig.1 from Pramana,24(1985)629 A033200300019 (COREL,A0332002) off-line measurement A033200300020 HISTORY (20220613A) SD: Left side of REACTION code deleted. A033200300021 SF8=A and SF9=EXP deleted from REACTION code. A033200300022 EN-ERR -> EN-ERR-DIG. A033200300023 ENDBIB 21 0 A033200300024 COMMON 1 3 A033200300025 EN-ERR-DIG A033200300026 MEV A033200300027 0.02 A033200300028 ENDCOMMON 3 0 A033200300029 DATA 3 14 A033200300030 EN DATA ERR-T A033200300031 MEV MB MB A033200300032 1.91 2.35E+00 7.00E-02 A033200300033 2.00 3.00E+00 4.00E-01 A033200300034 2.11 5.13E+00 1.50E-01 A033200300035 2.31 1.09E+01 2.70E+00 A033200300036 2.51 1.13E+01 1.90E+00 A033200300037 2.60 1.82E+01 6.00E-01 A033200300038 2.76 2.04E+01 6.00E-01 A033200300039 2.90 3.36E+01 1.00E+00 A033200300040 3.20 5.70E+01 6.00E+00 A033200300041 3.43 7.10E+01 2.10E+00 A033200300042 3.89 1.27E+02 4.00E+00 A033200300043 4.11 1.46E+02 6.00E+00 A033200300044 4.29 1.66E+02 2.20E+01 A033200300045 4.51 1.91E+02 6.00E+00 A033200300046 ENDDATA 16 0 A033200300047 ENDSUBENT 46 0 A033200399999 SUBENT A0332004 20220613 A101A033200400001 BIB 4 5 A033200400002 REACTION (23-V-51(P,N)24-CR-51,,SGV) A033200400003 ANALYSIS The reaction rate was derived from fitting of an A033200400004 analytic form to the measured excitation function. A033200400005 STATUS (TABLE) Tbl.2 from Pramana,24(1985)629 A033200400006 HISTORY (20220613S) SD A033200400007 ENDBIB 5 0 A033200400008 NOCOMMON 0 0 A033200400009 DATA 2 5 A033200400010 KT DATA A033200400011 K9 CM3/S/MOL A033200400012 1. 0.312E-01 A033200400013 2. 0.647E+03 A033200400014 3. 2.610E+04 A033200400015 4. 2.018E+05 A033200400016 5. 7.576E+05 A033200400017 ENDDATA 7 0 A033200400018 ENDSUBENT 17 0 A033200499999 ENDENTRY 4 0 A033299999999