ENTRY C2293 20241031 C243C229300000001
SUBENT C2293001 20241031 C243C229300100001
BIB 12 37 C229300100002
TITLE Reactions C12(d,n)N13 ground state and C12(d,t)C11 up C229300100003
to Ed=20 MeV C229300100004
AUTHOR (D.H.Wilkinson) C229300100005
REFERENCE (J,PR,100,32,1955) C229300100006
#doi:10.1103/PhysRev.100.32 C229300100007
INSTITUTE (1USABNL) C229300100008
FACILITY (CYCLO,1USABNL) Brookhaven 60-in. cyclotron. C229300100009
DETECTOR (NAICR) NaI(Tl) crystal. C229300100010
SAMPLE Stacks of 4-mil polyethylene foils. C229300100011
METHOD (ACTIV,STTA) The experiment was performed by C229300100012
bombarding polyethylene foils with about 1/100 C229300100013
microampere of 20-MeV deuterons for periods of the C229300100014
order of 30 minutes, during which time the beam C229300100015
current was held constant to better than 10%. After C229300100016
the bombardment the individual foils were trapped C229300100017
between aluminum sheets of thickness adequate to C229300100018
absorb the positrons of N13 and C11, and the decay C229300100019
was followed over many half-lives by counting the C229300100020
annihilation quanta with an NaI(Tl) crystal. (Neither C229300100021
body gives nuclear gamma rays.) C229300100022
ANALYSIS (DECAY) All decay curves were analyzed to find the C229300100023
relative amounts of N13 and C11 present in each foil C229300100024
at the end of the irradiations. The surface densities C229300100025
of the polyethylene foils were determined by weighing C229300100026
small triangles cut from the bombarded region of each C229300100027
foil; they were constant to within 2 percent from C229300100028
foil to foil and no correction was necessary on C229300100029
account of variations in surface density. With these C229300100030
data, relative cross sections for the (d,n) and (d,t) C229300100031
reactions were computed. C229300100032
ERR-ANALYS (DATA-ERR,,50.) The absolute cross section scale, C229300100033
however, was not set up with great care and may be in C229300100034
error by as much as 50 percent. C229300100035
CORRECTION The relative amounts of N13 and C11 were corrected C229300100036
for the finite duration of the bombardments. C229300100037
HISTORY (20180406C) BP C229300100038
(20241028A) OS. DECAY-DATA corrected C229300100039
ENDBIB 37 0 C229300100040
NOCOMMON 0 0 C229300100041
ENDSUBENT 40 0 C229300199999
SUBENT C2293002 20241031 C243C229300200001
BIB 4 4 C229300200002
REACTION (6-C-12(D,N)7-N-13,,SIG) C229300200003
DECAY-DATA (7-N-13,10.08MIN,AR) C229300200004
STATUS (CURVE,,D.H.Wilkinson,J,PR,100,32,1955) Fig.2, page 34.C229300200005
HISTORY (20241028A) DECAY-DATA: Energy, intensity deleted C229300200006
ENDBIB 4 0 C229300200007
NOCOMMON 0 0 C229300200008
DATA 2 25 C229300200009
EN DATA C229300200010
MEV MB C229300200011
5.926 2.581E+00 C229300200012
6.543 6.661E+01 C229300200013
7.160 1.455E+02 C229300200014
7.753 1.121E+02 C229300200015
8.370 1.121E+02 C229300200016
8.963 1.043E+02 C229300200017
9.580 9.592E+01 C229300200018
10.173 9.492E+01 C229300200019
10.815 8.643E+01 C229300200020
11.407 7.952E+01 C229300200021
11.975 7.470E+01 C229300200022
12.617 6.456E+01 C229300200023
13.210 6.323E+01 C229300200024
13.802 6.257E+01 C229300200025
14.395 6.065E+01 C229300200026
15.037 5.817E+01 C229300200027
15.630 5.352E+01 C229300200028
16.247 4.924E+01 C229300200029
16.840 4.625E+01 C229300200030
17.457 4.391E+01 C229300200031
18.049 4.125E+01 C229300200032
18.667 3.875E+01 C229300200033
19.284 3.915E+01 C229300200034
19.877 3.795E+01 C229300200035
20.469 3.565E+01 C229300200036
ENDDATA 27 0 C229300200037
ENDSUBENT 36 0 C229300299999
SUBENT C2293003 20241031 C243C229300300001
BIB 4 4 C229300300002
REACTION (6-C-12(D,T)6-C-11,,SIG) C229300300003
DECAY-DATA (6-C-11,20.0MIN,AR) C229300300004
STATUS (CURVE,,D.H.Wilkinson,J,PR,100,32,1955) Fig.2, page 34.C229300300005
HISTORY (20241028A) DECAY-DATA: Energy, intensity deleted C229300300006
ENDBIB 4 0 C229300300007
NOCOMMON 0 0 C229300300008
DATA 2 9 C229300300009
EN DATA C229300300010
MEV MB C229300300011
15.630 1.737E-01 C229300300012
16.198 9.794E-01 C229300300013
16.815 2.350E+00 C229300300014
17.432 3.280E+00 C229300300015
18.049 4.256E+00 C229300300016
18.642 5.296E+00 C229300300017
19.259 6.192E+00 C229300300018
19.852 7.707E+00 C229300300019
20.469 1.169E+01 C229300300020
ENDDATA 11 0 C229300300021
ENDSUBENT 20 0 C229300399999
ENDENTRY 3 0 C229399999999