ENTRY C2584 20201123 C200C258400000001
SUBENT C2584001 20201123 C200C258400100001
BIB 10 46 C258400100002
TITLE First direct measurement of 22Mg(alpha,p)25Al and C258400100003
implications for X-ray burst model-observation C258400100004
comparisons C258400100005
AUTHOR (J.S.Randhawa,Y.Ayyad,W.Mittig,Z.Meisel,T.Ahn, C258400100006
S.Aguilar,H.Alvarez-Pol,D.W.Bardayan,D.Bazin, C258400100007
S.Beceiro-Novo,D.Blankstein,L.Carpenter,M.Cortesi, C258400100008
D.Cortina-Gil,P.Gastis,M.Hall,S.Henderson,J.J.Kolata, C258400100009
T.Mijatovic,F.Ndayisabye,P.O'Malley,J.Pereira, C258400100010
A.Pierre,H.Robert,C.Santamaria,H.Schatz,J.Smith, C258400100011
N.Watwood,J.C.Zamora) C258400100012
INSTITUTE (1USAMSU,1USAOHO,1USANOT,2SPNSAU,3CRORBZ,1USABRK, C258400100013
3BZLUSP) C258400100014
(1USAUSA) Central Michigan University, Mount Pleasant C258400100015
REFERENCE (J,PRL,125,202701,2020) C258400100016
FACILITY (CYCTM,1USAMSU) Experiment was carried out using C258400100017
coupled cyclotrons at the NSCL East Lansing. This C258400100018
facility served to produce 22Mg ions. C258400100019
(LINAC,1USAMSU) 22Mg ions were injected into the ReA3 C258400100020
reaccelerator and accelerated to 5 MeV/u C258400100021
SAMPLE Sample was an Active-Target time projection chamber C258400100022
(TPC) filled with mixture of 95% He and 5% CO2 at C258400100023
the pressure of 600 torr. The active volume of the C258400100024
TPC is cylinder of length 1 m and of a radius 29.2 cm. C258400100025
DETECTOR The time projection chamber was at the same time He C258400100026
target as well as the detector of reaction products. C258400100027
Cylindrical TPC is placed in uniform magnetic field C258400100028
of 1.9T produced by solenoidal magnet. The sensor C258400100029
plane consisted of approx. 10000 equilateral triangle C258400100030
pads which provided x-y information of the particle C258400100031
track. Drift time of the electrons provided C258400100032
longitudinal z component of the track. C258400100033
(IOCH) A thin ionization chamber placed in front of th C258400100034
TPC, filled with isobutane at 10 torr was used to C258400100035
record the beam intensity aand identified the beam C258400100036
contaminants. Signal from ionization chamber was used C258400100037
also for time reference of the TPC signals. C258400100038
METHOD Inverse kinematics was used. C258400100039
INC-SOURCE 22Mg was produced from the fragmentation of a 24Mg C258400100040
primary beam accelerated by the coupled cyclotrons C258400100041
and selected by the A1900 fragment separator. The C258400100042
22Mg fragments were stopped in gas cell and C258400100043
transported to electron beam ion source. The ions C258400100044
from ion source were injected to ReA3 reaccelerator C258400100045
and accelerated to cca 5 MeV/A with average beam C258400100046
intensity of 900 pps. C258400100047
HISTORY (20201123C) Compiled by S.H. C258400100048
ENDBIB 46 0 C258400100049
NOCOMMON 0 0 C258400100050
ENDSUBENT 49 0 C258400199999
SUBENT C2584002 20201123 C200C258400200001
BIB 3 5 C258400200002
REACTION (12-MG-22(A,P)13-AL-25,,SIG) C258400200003
ERR-ANALYS (ERR-S) Statistical uncertainty C258400200004
(ERR-SYS) Systematic uncertainty C258400200005
(ERR-T) Total uncertaity C258400200006
STATUS (TABLE) Data taken from tab. 1 of the reference C258400200007
ENDBIB 5 0 C258400200008
NOCOMMON 0 0 C258400200009
DATA 11 5 C258400200010
EN DATA ERR-T +ERR-T -ERR-T ERR-SYS C258400200011
+ERR-SYS -ERR-SYS ERR-S +ERR-S -ERR-S C258400200012
MEV MB MB MB MB MB C258400200013
MB MB MB MB MB C258400200014
3.2 2.5 2.3 1.8 C258400200015
0.9 0.9 2.1 1.6 C258400200016
4.8 26. 12. 11.C258400200017
6. C258400200018
6.6 64. 27. 25.C258400200019
10. C258400200020
8.6 69. 29. 26.C258400200021
11. C258400200022
10.6 80. 33. 31.C258400200023
12. C258400200024
ENDDATA 14 0 C258400200025
ENDSUBENT 24 0 C258400299999
ENDENTRY 2 0 C258499999999