ENTRY A0118 20210121 A096A011800000001 SUBENT A0118001 20210121 A096A011800100001 BIB 12 36 A011800100002 TITLE Energy dependence of gamma-f/gamma-n for nucleus 216Rn A011800100003 AUTHOR (H.Freiesleben,H.C.Britt,J.R.Huizenga) A011800100004 REFERENCE (C,73ROCH,1,447,1973) A011800100005 (R,COO-3496-44,77,1974) Data tables A011800100006 (R,COO-3496-44,97,1974) Data tables A011800100007 INSTITUTE (1USAROC,1USALAS,2GERMBG) A011800100008 FACILITY (VDGT,1USAROC) A011800100009 SAMPLE Targets were produced by vacuum evaporation of A011800100010 deposits of about 200 ug/cm2 on carbon backings A011800100011 of thickness 20 ug/cm2 and 100 ug/cm2. A011800100012 The targets with 20 ug/cm2 gave the best energy A011800100013 resolution for the alpha particle observation so A011800100014 that weak peaks and close doublets could be resolved A011800100015 but not all of the recoil nuclei were stopped in A011800100016 the target plus backing so that a correction was A011800100017 necessary for nuclei which recoiled out of the A011800100018 target. This correction was determined from the A011800100019 observation of the large cross section group using A011800100020 targets with 100 ug/cm2 backings. A011800100021 DETECTOR (COIN,SIBAR,SIBAR) A011800100022 The fission cross section was measured by detecting A011800100023 coincident fission fragment pairs with surface barrier A011800100024 detectors in a large geometry arrangement. A011800100025 METHOD Cross sections for the formation of Rn A011800100026 nuclei were obtained by bombarding a Bi-209 target A011800100027 with pulsed Li-6,7 beams and observing the alpha A011800100028 particle decays between beam pulses. A011800100029 ANALYSIS (4PI1A) A measurement of the anisotropy at 33 MeV gave A011800100030 W(165.)/W(90.) = 1.19+-0.15. Hence, isotropy was A011800100031 assumed over the whole energy range. A011800100032 ADD-RES (COMP,THEO,POT) A011800100033 ERR-ANALYS (DATA-ERR) No information about source of uncertainty. A011800100034 HISTORY (19811113C) A011800100035 (20080701A) BIB section updated A011800100036 Corrections were made according to new EXFOR rules. A011800100037 (20210121A) SD: Major corrections in all Subents. A011800100038 ENDBIB 36 0 A011800100039 NOCOMMON 0 0 A011800100040 ENDSUBENT 39 0 A011800199999 SUBENT A0118002 20210121 A096A011800200001 BIB 6 15 A011800200002 REACTION 2(83-BI-209(3-LI-7,2N)86-RN-214,,SIG) A011800200003 3(83-BI-209(3-LI-7,3N)86-RN-213,,SIG) A011800200004 4(83-BI-209(3-LI-7,4N)86-RN-212,,SIG) A011800200005 MONITOR (83-BI-209(3-LI-7,EL)83-BI-209,,DA) A011800200006 Angle of registration was equal to 90 degree. A011800200007 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800200008 measuring the rate of alpha particle emission A011800200009 relative to an absolute elastic scattering cross A011800200010 section at 90. degr. A011800200011 DECAY-DATA2(86-RN-214,,A,9035.) A011800200012 3(86-RN-213,,A,8090.) A011800200013 4(86-RN-212,,A,6260.) A011800200014 STATUS (TABLE) Tbl.14 on p.80 of COO-3496-44,77. A011800200015 HISTORY (20210121A) SD: BIB updated. Part of the data moved A011800200016 to Subent 010. A011800200017 ENDBIB 15 0 A011800200018 NOCOMMON 0 0 A011800200019 DATA 7 10 A011800200020 EN DATA 2DATA-ERR 2DATA 3DATA-ERR 3DATA 4A011800200021 DATA-ERR 4 A011800200022 MEV MB MB MB MB MB A011800200023 MB A011800200024 34. 4.6 1.6 187. 19. 77.A011800200025 15. A011800200026 33. 4.7 1.6 189. 19. 51.A011800200027 15. A011800200028 32. 4.1 0.9 134. 13. 11.A011800200029 3. A011800200030 31. 4.4 0.6 89. 10. 1.4A011800200031 0.7 A011800200032 30. 3.3 0.7 41. 4. A011800200033 A011800200034 29. 2.0 0.4 16. 2. A011800200035 A011800200036 28. 1.1 0.3 4.7 0.5 A011800200037 A011800200038 27. 0.5 0.11 1.0 0.1 A011800200039 A011800200040 26. 0.3 0.07 0.14 0.04 A011800200041 A011800200042 25. 0.4 0.013 0.026 0.013 A011800200043 A011800200044 ENDDATA 24 0 A011800200045 ENDSUBENT 44 0 A011800299999 SUBENT A0118003 20210121 A096A011800300001 BIB 7 16 A011800300002 REACTION 2(83-BI-209(3-LI-6,2N)86-RN-213,,SIG) A011800300003 3(83-BI-209(3-LI-6,3N)86-RN-212,,SIG) A011800300004 MONITOR (83-BI-209(3-LI-6,EL)83-BI-209,,DA) A011800300005 Angle of registration was equal to 90 degree. A011800300006 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800300007 measuring the rate of alpha particle emission A011800300008 relative to an absolute elastic scattering cross A011800300009 section at 90. degr. A011800300010 DECAY-DATA2(86-RN-213,,A,8090.) A011800300011 3(86-RN-212,,A,6260.) A011800300012 CORRECTION Correction for the effects of second-chance fission A011800300013 were obtained from measurements of cross-sections for A011800300014 the (6Li,xn) reactions at appropriate energies A011800300015 STATUS (TABLE) Tbl.14 on p.80 of COO-3496-44,77. A011800300016 HISTORY (20210121A) SD: BIB updated. Part of the data moved A011800300017 to Subent 011. A011800300018 ENDBIB 16 0 A011800300019 NOCOMMON 0 0 A011800300020 DATA 5 2 A011800300021 EN DATA 2DATA-ERR 2DATA 3DATA-ERR 3 A011800300022 MEV MB MB MB MB A011800300023 30. 1.9 0.4 43. 4. A011800300024 28. 1.0 0.2 5.8 0.6 A011800300025 ENDDATA 4 0 A011800300026 ENDSUBENT 25 0 A011800399999 SUBENT A0118004 20210121 A096A011800400001 BIB 6 13 A011800400002 REACTION 0(83-BI-209(3-LI-7,A)84-PO-212-G,,SIG) A011800400003 1(83-BI-209(3-LI-7,N+A)84-PO-211,,SIG) A011800400004 MONITOR (83-BI-209(3-LI-7,EL)83-BI-209,,DA) A011800400005 Angle of registration was equal to 90 degree. A011800400006 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800400007 measuring the rate of alpha particle emission A011800400008 relative to an absolute elastic scattering cross A011800400009 section at 90. degr. A011800400010 DECAY-DATA0(84-PO-212,,A,8780.) A011800400011 1(84-PO-211-G,,A,7450.) A011800400012 (84-PO-211-M,,A,7275.) A011800400013 STATUS (TABLE) Tbl.16 on p.104 of COO-3496-44,97. A011800400014 HISTORY (20210121A) SD: BIB updated. A011800400015 ENDBIB 13 0 A011800400016 NOCOMMON 0 0 A011800400017 DATA 5 10 A011800400018 EN DATA 0DATA-ERR 0DATA 1DATA-ERR 1 A011800400019 MEV MB MB MB MB A011800400020 34. 1.6 0.2 44. 4. A011800400021 33. 2.0 0.2 47. 5. A011800400022 32. 1.2 0.1 40. 4. A011800400023 31. 0.9 0.2 35. 4. A011800400024 30. 0.4 0.08 24. 3. A011800400025 29. 0.27 0.1 17. 2. A011800400026 28. 0.11 0.06 9.2 0.9 A011800400027 27. 0.04 0.04 4.6 0.7 A011800400028 26. 2.1 0.7 A011800400029 25. 0.8 0.4 A011800400030 ENDDATA 12 0 A011800400031 ENDSUBENT 30 0 A011800499999 SUBENT A0118005 20210121 A096A011800500001 BIB 6 14 A011800500002 REACTION (83-BI-209(3-LI-7,2N+A)84-PO-210,,SIG) A011800500003 MONITOR (83-BI-209(3-LI-7,EL)83-BI-209,,DA) A011800500004 Angle of registration was equal to 90 ang.degree A011800500005 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800500006 measuring the rate of alpha particle emission A011800500007 relative to an absolute elastic scattering cross A011800500008 section at 90. degr. A011800500009 The cross section was also measured by bombarding a A011800500010 target for several hours with a DC beam and then A011800500011 counting the 5.31 MeV decay alpha particles off line A011800500012 in known geometry. A011800500013 DECAY-DATA (84-PO-210,,A,5300.) A011800500014 STATUS (TABLE) Tbl.16 on p.104 of COO-3496-44,97. A011800500015 HISTORY (20210121A) SD: BIB updated. A011800500016 ENDBIB 14 0 A011800500017 NOCOMMON 0 0 A011800500018 DATA 3 2 A011800500019 EN DATA DATA-ERR A011800500020 MEV MB MB A011800500021 32. 140. 20. A011800500022 30. 71. 10. A011800500023 ENDDATA 4 0 A011800500024 ENDSUBENT 23 0 A011800599999 SUBENT A0118006 20210121 A096A011800600001 BIB 7 15 A011800600002 REACTION 0(83-BI-209(3-LI-7,T)85-AT-213,,SIG) A011800600003 1(83-BI-209(3-LI-7,X)85-AT-212,,SIG) A011800600004 MONITOR (83-BI-209(3-LI-7,EL)83-BI-209,,DA) A011800600005 Angle of registration was equal to 90 degree. A011800600006 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800600007 measuring the rate of alpha particle emission A011800600008 relative to an absolute elastic scattering cross A011800600009 section at 90. degr. A011800600010 DECAY-DATA0(85-AT-213,,A,7679./7618.,, A011800600011 A,7897./7837.) A011800600012 RAD-DET 1(85-AT-212,A) A011800600013 STATUS (TABLE) Tbl.16 on p.104 of COO-3496-44,97. A011800600014 HISTORY (20210121A) SD: SF3=N+T -> X in REACTION code (1). A011800600015 BIB updated. Information about radiation type only A011800600016 moved from DECAY-DATA to RAD-DET. A011800600017 ENDBIB 15 0 A011800600018 NOCOMMON 0 0 A011800600019 DATA 5 7 A011800600020 EN DATA 0DATA-ERR 0DATA 1DATA-ERR 1 A011800600021 MEV MB MB MB MB A011800600022 34. 3.9 2. 23. 2. A011800600023 33. 4.4 2.2 18. 2. A011800600024 32. 2.7 1.3 13. 2. A011800600025 31. 1.3 0.6 7.1 1.4 A011800600026 30. 1.8 0.8 4.1 0.8 A011800600027 29. 1.3 0.6 1.3 0.15 A011800600028 28. 0.5 0.3 A011800600029 ENDDATA 9 0 A011800600030 ENDSUBENT 29 0 A011800699999 SUBENT A0118007 20210121 A096A011800700001 BIB 7 19 A011800700002 REACTION (83-BI-209(3-LI-7,P+A)83-BI-211,,SIG) A011800700003 MONITOR (83-BI-209(3-LI-7,EL)83-BI-209,,SIG) A011800700004 Angle of registration was equal to 90 degree. A011800700005 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800700006 measuring the rate of alpha particle emission A011800700007 relative to an absolute elastic scattering cross A011800700008 section at 90. degr. A011800700009 DECAY-DATA (83-BI-211,,A,6620.) A011800700010 MISC-COL (MISC) The cross section of production unidentified A011800700011 isomer. A011800700012 From the article:'We do not know the half-life of thisA011800700013 transition and in converting to total cross sections A011800700014 we assumed that it was of the order or longer than our A011800700015 pulse repetition time (400 ns). If the lifetime of thisA011800700016 decay were less than 100 ns then the cross section A011800700017 estimate would be significantly low. A011800700018 (MISC-ERR) Uncertainty of 'MISC' A011800700019 STATUS (TABLE) Tbl.16 on p.104 of COO-3496-44,97. A011800700020 HISTORY (20210121A) SD: BIB updated. A011800700021 ENDBIB 19 0 A011800700022 NOCOMMON 0 0 A011800700023 DATA 5 5 A011800700024 EN DATA DATA-ERR MISC MISC-ERR A011800700025 MEV MB MB MB MB A011800700026 30. 0.3 0.15 0.49 0.1 A011800700027 31. 0.4 0.2 0.86 0.14 A011800700028 32. 1. 0.2 0.97 0.1 A011800700029 33. 1.8 0.4 0.98 0.1 A011800700030 34. 1.8 0.4 0.82 0.09 A011800700031 ENDDATA 7 0 A011800700032 ENDSUBENT 31 0 A011800799999 SUBENT A0118008 20210121 A096A011800800001 BIB 7 13 A011800800002 REACTION (83-BI-209(3-LI-6,A)84-PO-211,,SIG) A011800800003 MONITOR (83-BI-209(3-LI-6,EL)83-BI-209,,DA) A011800800004 Angle of registration was equal to 90 degr. A011800800005 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800800006 measuring the rate of alpha particle emission A011800800007 relative to an absolute elastic scattering cross A011800800008 section at 90. degr. A011800800009 RAD-DET (84-PO-211-G,A) A011800800010 (84-PO-211-M,A) A011800800011 DECAY-DATA (84-PO-211-G,,A,7450.) A011800800012 (84-PO-211-M,,A,7275.) A011800800013 STATUS (TABLE) Tbl.16 on p.104 of COO-3496-44,97. A011800800014 HISTORY (20210121A) SD: BIB updated. A011800800015 ENDBIB 13 0 A011800800016 NOCOMMON 0 0 A011800800017 DATA 3 2 A011800800018 EN DATA DATA-ERR A011800800019 MEV MB MB A011800800020 28. 0.5 0.2 A011800800021 30. 0.8 0.2 A011800800022 ENDDATA 4 0 A011800800023 ENDSUBENT 22 0 A011800899999 SUBENT A0118009 20210121 A096A011800900001 BIB 7 15 A011800900002 REACTION 0(83-BI-209(3-LI-6,X)85-AT-213,,SIG) A011800900003 1(83-BI-209(3-LI-6,X)85-AT-212,,SIG) A011800900004 MONITOR (83-BI-209(3-LI-6,EL)83-BI-209,,DA) A011800900005 Angle of registration was equal to 90 degr. A011800900006 ANALYSIS (DECAY) Absolute cross sections were obtained by A011800900007 measuring the rate of alpha particle emission A011800900008 relative to an absolute elastic scattering cross A011800900009 section at 90. degr. A011800900010 RAD-DET 0(85-AT-213,A) A011800900011 DECAY-DATA1(85-AT-212-G,,A,7679./7618.) A011800900012 (85-AT-212-M,,A,7897./7837.) A011800900013 STATUS (TABLE) Tbl.16 on p.104 of COO-3496-44,97. A011800900014 HISTORY (20210121A) SD: SF3=D(or N+D) => X in REACTION codes A011800900015 (0) and (1) respectively. Information about radiation A011800900016 type only moved from DECAY-DATA to RAD-DET. BIB updatedA011800900017 ENDBIB 15 0 A011800900018 NOCOMMON 0 0 A011800900019 DATA 5 2 A011800900020 EN DATA 0DATA-ERR 0DATA 1DATA-ERR 1 A011800900021 MEV MB MB MB MB A011800900022 28. 0.25 0.15 1.9 0.4 A011800900023 30. 1.6 0.8 11. 2. A011800900024 ENDDATA 4 0 A011800900025 ENDSUBENT 24 0 A011800999999 SUBENT A0118010 20210121 A096A011801000001 BIB 4 5 A011801000002 REACTION (83-BI-209(3-LI-7,F),,SIG) A011801000003 MONITOR (83-BI-209(3-LI-7,EL)83-BI-209,,DA) A011801000004 Angle of registration was equal to 90 degree. A011801000005 STATUS (TABLE) Tbl.14 on p.80 of COO-3496-44,77. A011801000006 HISTORY (20210121T) SD: Information extracted from Subent 002. A011801000007 ENDBIB 5 0 A011801000008 NOCOMMON 0 0 A011801000009 DATA 3 8 A011801000010 EN DATA DATA-ERR A011801000011 MEV MB MB A011801000012 34. 1.77 0.03 A011801000013 33. 1.05 0.05 A011801000014 32. 0.58 0.03 A011801000015 31. 0.24 0.01 A011801000016 30. 0.086 0.008 A011801000017 29. 0.020 0.002 A011801000018 28. 0.0064 0.0008 A011801000019 27. 0.0014 0.0009 A011801000020 ENDDATA 10 0 A011801000021 ENDSUBENT 20 0 A011801099999 SUBENT A0118011 20210121 A096A011801100001 BIB 5 8 A011801100002 REACTION (83-BI-209(3-LI-6,F),,SIG) A011801100003 MONITOR (83-BI-209(3-LI-6,EL)83-BI-209,,DA) A011801100004 Angle of registration was equal to 90. degr. A011801100005 CORRECTION Correction for the effects of second-chance fission A011801100006 were obtained from measurements of cross-sections for A011801100007 the (6Li,f) reaction at appropriate energies A011801100008 STATUS (TABLE) Tbl.14 on p.80 of COO-3496-44,77. A011801100009 HISTORY (20210121T) SD: Information extracted from Subent 003. A011801100010 ENDBIB 8 0 A011801100011 NOCOMMON 0 0 A011801100012 DATA 3 8 A011801100013 EN DATA DATA-ERR A011801100014 MEV MB MB A011801100015 34. 2.25 0.05 A011801100016 33. 1.34 0.04 A011801100017 32. 0.75 0.02 A011801100018 31. 0.29 0.01 A011801100019 30. 0.12 0.006 A011801100020 29. 0.32 0.002 A011801100021 28. 0.0094 0.001 A011801100022 27. 0.015 0.0003 A011801100023 ENDDATA 10 0 A011801100024 ENDSUBENT 23 0 A011801199999 ENDENTRY 11 0 A011899999999