ENTRY A0286 20180524 A089A028600000001 SUBENT A0286001 20180524 A089A028600100001 BIB 12 26 A028600100002 TITLE Experimentally determined thick target yields for A028600100003 the N-14(p,alpha)C-11 reaction. A028600100004 AUTHOR (G.T.Bida,T.J.Ruth,A.P.Wolf) A028600100005 INSTITUTE (1USABNL) A028600100006 FACILITY (VDGT,1USABNL) A028600100007 (CYCLO,1USABNL) A028600100008 DETECTOR (SOLST) A028600100009 REFERENCE (J,RCA,27,181,1980) A028600100010 METHOD (STTA,EDEG,ACTIV,EXTB) A028600100011 REL-REF (R,,Willamson+,R,CEA-R-3042,1966).Stopping power table A028600100012 ERR-ANALYS (ERR-1).The uncertainty in the beam flux. A028600100013 (ERR-2).The uncertainty in the detection A028600100014 efficiency. A028600100015 (ERR-3).The uncertainty in the irradiation time. A028600100016 (ERR-S).The uncertainty in the counting statistics. A028600100017 (ERR-4).The uncertainty in the nitrogen A028600100018 composition of target. A028600100019 (ERR-5).Any potential loss of activity. A028600100020 RAD-DET (6-C-11,B+) A028600100021 DECAY-DATA (6-C-11,20.4MIN,B+) A028600100022 HISTORY (19860407C) A028600100023 (20180524A) SD:Updated to new date format,lower case. A028600100024 REACTION code was updated according to MEMO CP-D/933revA028600100025 in Subents 002-003. BIB was updated.DATA-ERR1 -> ERR-1;A028600100026 DATA-ERR2 -> ERR-2; DATA-ERR3 -> ERR-3; etc. A028600100027 STATUS moved to Subents 002,003. A028600100028 ENDBIB 26 0 A028600100029 COMMON 6 3 A028600100030 ERR-1 ERR-2 ERR-3 ERR-4 ERR-S ERR-5 A028600100031 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT A028600100032 1. 5. 2. 2. 2. 2. A028600100033 ENDCOMMON 3 0 A028600100034 ENDSUBENT 33 0 A028600199999 SUBENT A0286002 20180524 A089A028600200001 BIB 6 17 A028600200002 REACTION (7-N-14(P,A)6-C-11,,SIG) A028600200003 SAMPLE The proton beam passed through a thin (0.00625g/cm**2) A028600200004 'havar' foil and a small air path(0.0015g/cm**2)before A028600200005 striking the aluminium cover foil of the kapton target A028600200006 1 or 2 mils thick(1.905 cm diameter by either 0.0025 A028600200007 or 0.0050 cm thick)sandwiched between a 1 mil(0.0025cm)A028600200008 and a 3 mil(0.0076cm) Al foil were used. A028600200009 From four to six target stacks were irradiated simul- A028600200010 taneously in the cross section measurements. A028600200011 COMMENT /By authors/ The cross sections were compared to A028600200012 those of Jacobs et.al. There is excellently agreement A028600200013 in some regions and very poor agreement in others. A028600200014 REL-REF (A,R0025002,W.W.Jacobs+,J,PR/C,9,2134,1974) A028600200015 STATUS (TABLE) Tbl. 1 from RCA,27,181,1980 A028600200016 HISTORY (20180524A) SD: SF5=IND, SF9=EXP were deleted from A028600200017 REACTION code. MISC deleted (data from another source, A028600200018 see REL-REF). A028600200019 ENDBIB 17 0 A028600200020 NOCOMMON 0 0 A028600200021 DATA 2 16 A028600200022 EN DATA A028600200023 MEV MB A028600200024 5.08 19. A028600200025 6.72 122. A028600200026 6.89 146. A028600200027 8.06 106. A028600200028 8.14 122. A028600200029 8.19 113. A028600200030 9.26 61. A028600200031 9.37 54. A028600200032 9.49 99. A028600200033 10.3 67. A028600200034 10.6 77. A028600200035 11.3 106. A028600200036 11.6 64. A028600200037 12.1 126. A028600200038 12.6 71. A028600200039 13.6 114. A028600200040 ENDDATA 18 0 A028600200041 ENDSUBENT 40 0 A028600299999 SUBENT A0286003 20180524 A089A028600300001 BIB 9 27 A028600300002 REACTION (7-N-14(P,A)6-C-11,,TTY,,SAT) A028600300003 SAMPLE For the thick target yield studies,stack of 2 mil A028600300004 (0.0051cm) thick kapton foils(held in a 0.0076 cm A028600300005 Al packet) sufficiently thick to stop the proton beam A028600300006 of the desired energy were used.The thickness ranged A028600300007 from 0.28 g/cm**2 for proton energies below 9 MeV to A028600300008 1g/cm**2 for proton energies up to 18 MeV. A028600300009 COMMENT /By authors/.figure 1 contains the results of the A028600300010 thick target yields determined at the cyclotron and A028600300011 the Van de Graff. The yields determinations of the A028600300012 gas target are included to illustrate the dramatic A028600300013 difference between the gas and solid targets. A028600300014 FLAG (1.) This is measurement on the tandem Van de Graff. A028600300015 (2.) This is measurement on the cyclotron. A028600300016 (3.).This is measurement with gas target. A028600300017 (4.).Melamine target. A028600300018 (5.).Adenine target. A028600300019 MISC-COL (MISC1).Calculated yields in a manner described in A028600300020 text from the excitation functions of Jacobs. See A028600300021 REL-REF. A028600300022 (MISC2).Ratio of experimental yields at calculated A028600300023 yield. A028600300024 REL-REF (A,,W.W.Jacobs+,J,PR/C,9,2134,1974) A028600300025 ERR-ANALYS (ERR-T) The total error in the TTY. A028600300026 STATUS (CURVE)fig.1 from RCA,27,181,1980 by CAJaD. A028600300027 HISTORY (20180524A) SD: SF5=IND deleted; SF8=SAT added; SF9=EXPA028600300028 deleted from REACTION code. EN-ERR -> EN-ERR-DIG. A028600300029 ENDBIB 27 0 A028600300030 COMMON 2 3 A028600300031 EN-ERR-DIG ERR-T A028600300032 MEV PER-CENT A028600300033 0.07 6. A028600300034 ENDCOMMON 3 0 A028600300035 DATA 5 18 A028600300036 EN DATA MISC1 MISC2 FLAG A028600300037 MEV MCI/MUA MCI/MUA NO-DIM NO-DIM A028600300038 5.83 5.8 1. A028600300039 8. 40. 51. 0.78 1. A028600300040 8.53 48.2 1. A028600300041 10. 66. 81. 0.81 1. A028600300042 10.18 65.6 1. A028600300043 11.5 84.9 1. A028600300044 11.5 81.3 4. A028600300045 11.5 81.8 5. A028600300046 11.63 90. 1. A028600300047 11.84 64.9 3. A028600300048 12. 97. 122. 0.80 1. A028600300049 12.89 114.4 1. A028600300050 13.52 107. 3. A028600300051 14.58 146.9 1. A028600300052 15. 159. 196. 0.81 1. A028600300053 15.09 157.2 2. A028600300054 15.32 163.6 2. A028600300055 17.20 188.1 2. A028600300056 ENDDATA 20 0 A028600300057 ENDSUBENT 56 0 A028600399999 ENDENTRY 3 0 A028699999999