ENTRY O1226 20050306 O023O122600000001
SUBENT O1226001 20050306 O023O122600100001
BIB 15 50 O122600100002
TITLE High-precision proton-proton bremsstrahlung O122600100003
measurements at 190 MeV O122600100004
REFERENCE (J,PR/C,70,024004,2004) O122600100005
AUTHOR (M.Mahjour-Shafiei, J.C.S.Bacelar, M.D.Cozma, O122600100006
M.J.Van Goethem, M.N.Harakeh, M.Hoefman, H.Huisman, O122600100007
N.Kalantar-Nayestanaki, H.Lohner, J.G.Messchendorp, O122600100008
R.W.Ostendorf, S.Schadmand, O.Scholten, M.Volkerts, O122600100009
H.W.Wilschut) O122600100010
INSTITUTE (2NEDGRN) Kernfysisch Versneller Instituut. O122600100011
REL-REF (N,,N.KALANTAR-NAYESTANAKI+,J,NIM/A,444,591,2000) O122600100012
More detailed information about SALAD. O122600100013
Phase analysises which were used for normalization of O122600100014
elastic scattering data: O122600100015
(R,,R.A.ARNDT+,J,PR/C,56,3005,1997) SAID O122600100016
(R,,V.G.J.STOKS+,J,PR/C,48,792,1993) PWA93 O122600100017
(R,,V.G.J.STOKS+,J,PR/C,49,2950,1994) O122600100018
(R,,M.C.M.RENTMEESTER+,J,PRL,82,4992,1999) O122600100019
INC-SOURCE (POLIS) A typical polarization of ~0.65. O122600100020
SAMPLE A liquid-hydrogen target cell with a thickness of 6 mmO122600100021
and a diameter of 20 mm was designed and used for theseO122600100022
measurements. For the entrance and exit windows of theO122600100023
target, 4 mum-thick Aramid was used. O122600100024
COMMENT -By authors. This was the first time that such a thin O122600100025
window of synthetic material has been used in a beam ofO122600100026
protons. These windows were used for extended periods O122600100027
of 2 to 3 weeks of beam on target without any visible O122600100028
damage. O122600100029
DETECTOR (SPEC) The Small-Angle Large-Acceptance Detector O122600100030
(SALAD) was used for the detection of the outgoing O122600100031
protons. It consists of two Multi-Wire Proportional O122600100032
chambers (MWPC) for determination of the scattering O122600100033
angle of the outgoing protons. Behind the two O122600100034
wire chambers, two layers of segmented plastic O122600100035
scintillators are mounted. The first layer used for O122600100036
energy determination of the protons and is therefore O122600100037
called the "energy detector". Protons with an energy O122600100038
higher than 135 MeV will punch through the first layer O122600100039
and reach the second layer of scintillators called the O122600100040
"veto detector". These protons originate from elastic O122600100041
scattering and can be rejected via a hardware trigger. O122600100042
FACILITY (ISOCY,2NEDGRN) The superconducting cyclotron AGOR. O122600100043
METHOD (EXTB) The beam current was typically 6 nA. O122600100044
HISTORY (20050303C) By F.Ch O122600100045
(20041216R) Data tables were received from O122600100046
N.Kalantar-Nayestanaki. O122600100047
(20050306U) Last checking has been done. O122600100048
STATUS (TABLE) O122600100049
ERR-ANALYS (ERR-S) Statistical uncertainty. O122600100050
ADD-RES (ANGD) Cross sections and analysing powers for O122600100051
bremsstraglung radiation. O122600100052
ENDBIB 50 0 O122600100053
COMMON 1 3 O122600100054
EN O122600100055
MEV O122600100056
190. O122600100057
ENDCOMMON 3 0 O122600100058
ENDSUBENT 57 0 O122600199999
SUBENT O1226002 20050306 O023O122600200001
BIB 3 6 O122600200002
REACTION (1-H-1(P,EL)1-H-1,,DA) O122600200003
COMMENT -By authors. The normalizations of the cross sectionO122600200004
is fitted to two different phase-shift analyses. O122600200005
MISC-COL (MISC) The correction for contributions from the targetO122600200006
foils at nominal luminosity. O122600200007
(MISC-ERR) Statistical error of MISC. O122600200008
ENDBIB 6 0 O122600200009
NOCOMMON 0 0 O122600200010
DATA 5 9 O122600200011
ANG DATA ERR-S MISC MISC-ERR O122600200012
ADEG MB/SR MB/SR MB/SR MB/SR O122600200013
7. 14.9 0.15 2.501 0.1159 O122600200014
9. 15.35 0.13 1.992 0.09132 O122600200015
11. 15.85 0.11 1.445 0.07041 O122600200016
13. 15.85 0.1 1.188 0.05879 O122600200017
15. 15.68 0.09 0.8298 0.04582 O122600200018
17. 15.56 0.09 0.6539 0.03827 O122600200019
19. 15.21 0.08 0.5618 0.03518 O122600200020
21. 14.92 0.11 0.6517 0.0475 O122600200021
23. 14.6 0.14 0.4262 0.05502 O122600200022
ENDDATA 11 0 O122600200023
ENDSUBENT 22 0 O122600299999
SUBENT O1226003 20050306 O023O122600300001
BIB 3 6 O122600300002
REACTION (1-H-1(P,EL)1-H-1,,POL/DA,,ANA) O122600300003
COMMENT -By authors. The normalization of the beam O122600300004
polarization is fitted to two different phase-shift O122600300005
analyses. O122600300006
FLAG (1.) The results refer to the other state of the beam O122600300007
polarization. O122600300008
ENDBIB 6 0 O122600300009
NOCOMMON 0 0 O122600300010
DATA 4 18 O122600300011
ANG DATA ERR-S FLAG O122600300012
ADEG NO-DIM NO-DIM NO-DIM O122600300013
7. 0.096 0.081 1. O122600300014
7. 0.244 0.059 O122600300015
9. 0.212 0.069 1. O122600300016
9. 0.216 0.051 O122600300017
11. 0.173 0.058 1. O122600300018
11. 0.26 0.043 O122600300019
13. 0.237 0.052 1. O122600300020
13. 0.273 0.037 O122600300021
15. 0.306 0.046 1. O122600300022
15. 0.309 0.034 O122600300023
17. 0.265 0.044 1. O122600300024
17. 0.324 0.033 O122600300025
19. 0.227 0.054 O122600300026
19. 0.331 0.071 1. O122600300027
21. 0.231 0.053 O122600300028
21. 0.413 0.071 1. O122600300029
23. 0.241 0.061 O122600300030
23. 0.306 0.081 1. O122600300031
ENDDATA 20 0 O122600300032
ENDSUBENT 31 0 O122600399999
ENDENTRY 3 0 O122699999999