ENTRY M0446 20220114 M117M044600000001
SUBENT M0446001 20220114 M117M044600100001
BIB 12 37 M044600100002
TITLE Deexcitation g-rays following the photodisintegration M044600100003
of O-17. M044600100004
AUTHOR (G.V.O'Rielly,D.Zubanov,M.N.Thompson) M044600100005
REFERENCE (J,PR/C,40,59,1989) M044600100006
INSTITUTE (3AULAML) M044600100007
FACILITY (BETAT,3AULAML) M044600100008
INC-SOURCE (BRST) M044600100009
METHOD (EXTB) M044600100010
SAMPLE A 120-g sample of water, isotopically enriched to M044600100011
48.6% in O-17, was contained in a thin-walled lucite M044600100012
cylinder 3.81 cm in diameter, and 10.2 cm long. M044600100013
DETECTOR (GELI) Thin Ge(Li) low-energy photon detector, with M044600100014
the data-acquisition system enabled to count for 70 M044600100015
microsec starting 8.5 microsec after the beam burst. M044600100016
ERR-ANALYS (ERR-S) The statistical errors. M044600100017
(ERR-SYS) The systematic errors. M044600100018
COMMENT Bremsstrahlung-weighted integrated cross sections for M044600100019
photoproton and photoneutron emission from O-17 to M044600100020
excited residual states in N-16 and O-16 have been M044600100021
measured by detecting the deexcitation g-rays M044600100022
emitted from these states in the residual nuclei. M044600100023
About 90% of photoproton emission from O-17 M044600100024
populates the ground state (2-) and the 0.298 MeV M044600100025
level (3-) in N-16. The remaining photoproton M044600100026
emission lead to the 0.120 MeV (0-) and 0.397 MeV M044600100027
(1-) levels. For the O-17(g,n)O-16 reaction, the M044600100028
results show that emission to bound states in o-16 M044600100029
is predominantly to the 0-16 ground state (0+), with M044600100030
4% of the decay from O-17 giant dipole resonance M044600100031
going to the 6.13 MeV (3-) excited state; population M044600100032
of other bound states is not observed. M044600100033
HISTORY (19910218C) M044600100034
(20170125A) Correced by V.Varlamov: dates, ERR-ANALYS, M044600100035
STATUS, COMMON, REACTION, SUBENT 006 deleted because M044600100036
it gives the ratio of data from SUBENTS 004 and 005. M044600100037
(20220114A) Corrected by V.Varlamov: PART-DET, STATUS, M044600100038
ERR-ANALYS in SUBENTs 004, 005. M044600100039
ENDBIB 37 0 M044600100040
NOCOMMON 0 0 M044600100041
ENDSUBENT 40 0 M044600199999
SUBENT M0446002 20220114 M117M044600200001
BIB 6 15 M044600200002
REACTION (8-O-17(G,P)7-N-16,,INT,,BRA) M044600200003
METHOD (ACTIV) M044600200004
DECAY-DATA (7-N-16,7.13SEC,DG,6130.0,0.67) M044600200005
ANALYSIS The number of deexcitation g-rays detected at a M044600200006
particular bremsstrahlung end-point energy reflects M044600200007
the differential cross section over the energy M044600200008
region up to this end-point energy weighted by M044600200009
number of photons at each energy in bremsstrahlung M044600200010
spectra. So the differential cross section and the M044600200011
integrated cross sections obtained are of M044600200012
"bremsstrahlung-weighted" type. M044600200013
STATUS (TABLE) Data from table 1 of Phys.Rev.,C,40(1989)59. M044600200014
HISTORY (20170125) Corrected by V.Varlamov: REACTION, M044600200015
STATUS, METHOD, DECAY-DATA, ERR-SYS, ERR-S. M044600200016
(20220114U) Corrected by V.Varlamov: STATUS. M044600200017
ENDBIB 15 0 M044600200018
COMMON 1 3 M044600200019
ERR-SYS M044600200020
PER-CENT M044600200021
17. M044600200022
ENDCOMMON 3 0 M044600200023
DATA 3 4 M044600200024
EN-MAX DATA ERR-S M044600200025
MEV MB*MEV MB*MEV M044600200026
16.5 3.1 .6 M044600200027
18.5 5.4 .5 M044600200028
21.5 10.9 .6 M044600200029
28. 37. 3. M044600200030
ENDDATA 6 0 M044600200031
ENDSUBENT 30 0 M044600299999
SUBENT M0446003 20220114 M117M044600300001
BIB 4 13 M044600300002
REACTION (8-O-17(G,P)7-N-16,PAR,INT/DA,G,4PI/BRA) M044600300003
ANALYSIS The number of deexcitation g-rays detected at a M044600300004
particular bremsstrahlung end-point energy reflects M044600300005
the differential cross section over the energy M044600300006
region up to this end-point energy weighted by M044600300007
number of photons at each energy in bremsstrahlung M044600300008
spectra. So the differential cross section and the M044600300009
integrated cross sections obtained are of M044600300010
"bremsstrahlung-weighted" type. M044600300011
STATUS (TABLE) Data from table 1 of Phys.Rev.,C,40(1989)59. M044600300012
HISTORY (20170125) Corrected by V.Varlamov: REACTION, ANGLE, M044600300013
ERR-SYS, ERR-S, STATUS. M044600300014
(20220114U) Corrected by V.Varlamov: STATUS. M044600300015
ENDBIB 13 0 M044600300016
COMMON 3 3 M044600300017
E ANG ERR-SYS M044600300018
KEV ADEG PER-CENT M044600300019
120.0 135.0 8.0 M044600300020
ENDCOMMON 3 0 M044600300021
DATA 3 4 M044600300022
EN-MAX DATA ERR-S M044600300023
MEV MB*MEV MB*MEV M044600300024
16.5 .29 .14 M044600300025
18.5 .76 .24 M044600300026
21.5 .94 .17 M044600300027
28. 3.93 .33 M044600300028
ENDDATA 6 0 M044600300029
ENDSUBENT 28 0 M044600399999
SUBENT M0446004 20220114 M117M044600400001
BIB 5 19 M044600400002
REACTION (8-O-17(G,P)7-N-16,,INT,,BRS) M044600400003
ANALYSIS Data derived by assuming the (1) ratio of the M044600400004
bremssstrahlung-weighted integrated cross section to M044600400005
the integrated cross section in D.Zubanov et al., M044600400006
University of Melbourne Report UM-P-89/43,1989, and M044600400007
(2) the partial and total (g,p) cross section have M044600400008
the same shape. M044600400009
ERR-ANALYS (ERR-1) Systematic uncertainty due to the assumption M044600400010
that the partial and total (g,p) cross sections have M044600400011
the same shape. M044600400012
It was estimated that assumption of similar shapes M044600400013
introduces a systematic uncertainty of about 5%. M044600400014
STATUS (TABLE) Data from table 2 of Phys.Rev.,C,40(1989)59. M044600400015
(DEP,M0446002) Bremsstrahlung-weighted cross section M044600400016
integral. M044600400017
HISTORY (20170125) Corrected by V.Varlamov: REACTION, M044600400018
ERR-SYS, ERR-S, STATUS. M044600400019
(20220114A) Corrected by V.Varlamov: ERR-ANALYS, M044600400020
STATUS. M044600400021
ENDBIB 19 0 M044600400022
COMMON 2 3 M044600400023
ERR-SYS ERR-1 M044600400024
PER-CENT PER-CENT M044600400025
17. 5. M044600400026
ENDCOMMON 3 0 M044600400027
DATA 3 4 M044600400028
EN-MAX DATA ERR-S M044600400029
MEV MB*MEV MB*MEV M044600400030
16.5 1.4 .3 M044600400031
18.5 2.4 .2 M044600400032
21.5 5.6 .3 M044600400033
28. 21. 2. M044600400034
ENDDATA 6 0 M044600400035
ENDSUBENT 34 0 M044600499999
SUBENT M0446005 20220114 M117M044600500001
BIB 5 19 M044600500002
REACTION (8-O-17(G,P)7-N-16,PAR,INT/DA,G,4PI/BRS) M044600500003
ANALYSIS Data derived by assuming the (1) ratio of the M044600500004
bremssstrahlung-weighted integrated cross section to M044600500005
the integrated cross section in D.Zubanov et al., M044600500006
University of Melbourne Report UM-P-89/43,1989, and M044600500007
(2) the partial and total (g,p) cross section have M044600500008
the same shape. M044600500009
ERR-ANALYS (ERR-1) Systematic uncertainty due to the assumption M044600500010
that the partial and total (g,p) cross sections have M044600500011
the same shape. M044600500012
It was estimated that assumption of similar shapes M044600500013
introduces a systematic uncertainty of about 5%. M044600500014
STATUS (TABLE) Data from table 2 of Phys.Rev.,C,40(1989)59. M044600500015
(DEP,M0446003) Bremsstrahlung-weighted cross section M044600500016
integral. M044600500017
HISTORY (20170125) Corrected by V.Varlamov: REACTION, ANGLE, M044600500018
ERR-SYS, ERR-S, STATUS. M044600500019
(20220114A) Corrected by V.Varlamov: ERR-ANALYS, M044600500020
STATUS. M044600500021
ENDBIB 19 0 M044600500022
COMMON 4 3 M044600500023
E ANG ERR-SYS ERR-1 M044600500024
KEV ADEG PER-CENT PER-CENT M044600500025
120.0 135.0 13.0 5.0 M044600500026
ENDCOMMON 3 0 M044600500027
DATA 3 4 M044600500028
EN-MAX DATA ERR-S M044600500029
MEV MB*MEV MB*MEV M044600500030
16.5 .13 .06 M044600500031
18.5 .34 .11 M044600500032
21.5 .47 .09 M044600500033
28. 2.30 .02 M044600500034
ENDDATA 6 0 M044600500035
ENDSUBENT 34 0 M044600599999
NOSUBENT M0446006 20170125 M087M044600600001
ENDENTRY 6 0 M044699999999