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