ENTRY D0218 20090911 D069D021800000001 SUBENT D0218001 20090911 D069D021800100001 BIB 8 23 D021800100002 TITLE Interaction of 8He nuclei with alpha particles and D021800100003 protons at a beam energy of 26 MeV/n D021800100004 AUTHOR (R.Wolski,A.S.Fomichev,A.M.Rodin,S.I.Sidorchuk, D021800100005 S.V.Stepantsov,G.M.Ter-Akopian,Yu.Ts.Oganessian, D021800100006 W.Mittig,P.Roussel-Chomaz,N.Alamanos,V.Lapoux,R.Raabe) D021800100007 INSTITUTE (4ZZZDUB,3POLIFJ,2FR GAN,2FR SAT,2BLGLEU) D021800100008 REFERENCE (J,NP/A,701,29,2002) D021800100009 (J,NP/A,722,55,2003) The data are partly reanalysed. D021800100010 FACILITY (CYCLO,4ZZZDUB)the U-400M cyclotron of FLNR D021800100011 (PRJFS,4ZZZDUB) The selection of 8He ions was realized D021800100012 by double achromatic magnetic separator ACCULINNA D021800100013 ERR-ANALYS (DATA-ERR) The uncertainty of the measured absolute D021800100014 cross section values. The errors are combined values D021800100015 for: D021800100016 * statiscics, D021800100017 * a background separation, D021800100018 * for an estimation of uncertainty of the D021800100019 efficiency simulation, D021800100020 * solid angle error D021800100021 STATUS (TABLE) Data were received from Dr. R.Wolski D021800100022 (APRVD) Entry was approved by Dr. R.Wolski D021800100023 HISTORY (20050120C) SD D021800100024 (20090911U) On. 002-003 corrected D021800100025 ENDBIB 23 0 D021800100026 COMMON 2 3 D021800100027 EN EN-RSL D021800100028 MEV/A PER-CENT D021800100029 26.1 5. D021800100030 ENDCOMMON 3 0 D021800100031 ENDSUBENT 30 0 D021800199999 SUBENT D0218002 20090911 D069D021800200001 BIB 6 25 D021800200002 REACTION (2-HE-4(2-HE-8,EL)2-HE-4,,DA) D021800200003 The values for the upper limit of the elastic D021800200004 scattering at backward CM angles are given D021800200005 at the DATA-MAX D021800200006 SAMPLE The target was a helium gas cell of a thickness and D021800200007 diameter of 10 and 20 mm, respectively. Being cooled D021800200008 down to 35 K by a crygenerator it contained D021800200009 2.4 x 10**21/cm2 8He at a gas pressure of 11 atm. D021800200010 INC-SOURCE The secondary beam of 8He was obtained via the D021800200011 bombardment of a beryllium target of a thickness of D021800200012 255 mg/cm2 by a 32 MeV/n primary beam of 11B. D021800200013 PART-DET (2-HE-8) 8He to forward and backward angles D021800200014 (A) Recoil alpha to backward angles D021800200015 DETECTOR (TELES,SISD,CSICR) The detector array consisted of D021800200016 two twin, large area, position sensitive telescopes. D021800200017 Each telescope involved two silicon strip detectors D021800200018 for dE and position measurements and one CsJ crystal D021800200019 for energy measurements. D021800200020 (TELES,SOLST,SOLST) The 8He beam was monitored and its D021800200021 intensity measured using a system of two plastic D021800200022 scintillators. A thin, 200 mu-m plastic was set before D021800200023 the target, whereas a thick plastic scintillator D021800200024 serving as a beam stopper was installed behind the D021800200025 target. D021800200026 HISTORY (20090911U) On. PART-DET added D021800200027 ENDBIB 25 0 D021800200028 NOCOMMON 0 0 D021800200029 DATA 4 24 D021800200030 ANG-CM DATA-CM DATA-MAX DATA-ERR D021800200031 ADEG MB/SR MB/SR MB/SR D021800200032 16.5 263.35 93.28 D021800200033 19.5 136.55 21.67 D021800200034 22.5 64.82 5.89 D021800200035 25.5 39.30 2.61 D021800200036 28.5 29.60 1.57 D021800200037 31.5 29.04 1.37 D021800200038 34.5 26.51 1.19 D021800200039 37.5 19.91 0.83 D021800200040 40.5 14.23 0.58 D021800200041 43.5 9.14 0.358 D021800200042 46.5 6.90 0.281 D021800200043 49.5 4.65 0.192 D021800200044 52.5 2.969 0.123 D021800200045 55.5 2.072 0.092 D021800200046 58.5 1.31 0.063 D021800200047 61.5 0.667 0.07 D021800200048 64.5 0.499 0.1 D021800200049 67.5 0.267 0.19 D021800200050 70.5 0.134 0.13 D021800200051 76.5 0.06 D021800200052 135.0 0.0056 D021800200053 145.0 0.0010 D021800200054 155.0 0.0008 D021800200055 165.0 0.0026 D021800200056 ENDDATA 26 0 D021800200057 ENDSUBENT 56 0 D021800299999 SUBENT D0218003 20090911 D069D021800300001 BIB 4 9 D021800300002 REACTION (2-HE-4(2-HE-8,EL)2-HE-4,,DA,,RTH) D021800300003 The values for the upper limit of the elastic D021800300004 scattering at backward CM angles are given D021800300005 at the DATA-MAX D021800300006 PART-DET (2-HE-8) 8He to forward and backward angles D021800300007 (A) Recoil alpha to backward angles D021800300008 STATUS (DEP,D0218002) The same data as in D0218002 are given D021800300009 as a ratio to the Rutherford cr.s. D021800300010 HISTORY (20090911U) On. PART-DET added D021800300011 ENDBIB 9 0 D021800300012 NOCOMMON 0 0 D021800300013 DATA 4 22 D021800300014 ANG-CM DATA DATA-MAX DATA-ERR D021800300015 ADEG NO-DIM NO-DIM NO-DIM D021800300016 19.8 34.27 2.835 D021800300017 22.8 19.54 0.8 D021800300018 25.9 17.83 0.54 D021800300019 29. 21.56 0.51 D021800300020 32.2 28.85 0.56 D021800300021 35.3 33.68 0.68 D021800300022 38.5 35.55 0.71 D021800300023 41.7 33.49 0.67 D021800300024 44.9 30.91 0.62 D021800300025 48.2 27.99 0.62 D021800300026 51.5 25.26 0.62 D021800300027 54.9 20.49 0.5 D021800300028 58.3 16.23 0.56 D021800300029 61.9 10.665 0.5 D021800300030 65.5 7.328 0.47 D021800300031 69.2 4.128 0.47 D021800300032 73. 2.278 0.48 D021800300033 77. 1.668 0.41 D021800300034 135. 0.844 D021800300035 145. 0.293 D021800300036 155. 0.172 D021800300037 165. 0.617 D021800300038 ENDDATA 24 0 D021800300039 ENDSUBENT 38 0 D021800399999 SUBENT D0218004 20041026 D040D021800400001 BIB 4 9 D021800400002 REACTION (1-H-1(2-HE-8,EL)1-H-1,,DA) D021800400003 SAMPLE A 400 mu-m CH2 foil was used as a hydrogen target. D021800400004 INC-SOURCE The primary beam of 11B bombarding a 185 mg/cm2 D021800400005 beryllium target was used for the production of a D021800400006 8He secondary beam. D021800400007 DETECTOR (TELES,SISD,CSICR) The detection and identification D021800400008 of reactions products was realized by means two large, D021800400009 position sensitive telescopes, which operated in D021800400010 coincidence in order to greatly reduced the background.D021800400011 ENDBIB 9 0 D021800400012 NOCOMMON 0 0 D021800400013 DATA 3 38 D021800400014 ANG-CM DATA-CM DATA-ERR D021800400015 ADEG MB/SR MB/SR D021800400016 141.7 0.249 0.14 D021800400017 138.7 0.343 0.132 D021800400018 135.6 0.301 0.1102 D021800400019 132.6 0.294 0.0972 D021800400020 129.6 0.299 0.0906 D021800400021 126.5 0.330 0.0892 D021800400022 123.4 0.327 0.0868 D021800400023 120.4 0.401 0.0942 D021800400024 117.4 0.545 0.1102 D021800400025 114.3 0.517 0.1082 D021800400026 111.3 0.634 0.1218 D021800400027 108.3 0.620 0.1198 D021800400028 105.3 0.758 0.1366 D021800400029 102.3 0.997 0.1618 D021800400030 99.2 1.337 0.1906 D021800400031 96.2 1.898 0.2478 D021800400032 95.2 4.54 1.2 D021800400033 93.2 3.58 0.7 D021800400034 92.2 6.0 0.85 D021800400035 90.2 7.67 1.9 D021800400036 89.2 5.27 0.79 D021800400037 86.2 5.74 0.82 D021800400038 83.2 5.62 0.82 D021800400039 80.2 5.74 0.84 D021800400040 77.2 5.93 0.86 D021800400041 74.3 5.19 0.83 D021800400042 71.3 5.86 0.88 D021800400043 68.3 4.79 0.82 D021800400044 65.3 6.23 0.97 D021800400045 62.4 5.57 0.93 D021800400046 59.4 8.36 1.15 D021800400047 56.5 10.9 1.42 D021800400048 53.5 17.80 1.996 D021800400049 50.5 26.29 3.5 D021800400050 47.5 39.35 9. D021800400051 44.6 45.10 10. D021800400052 41.7 57.09 15. D021800400053 38.7 72.34 20. D021800400054 ENDDATA 40 0 D021800400055 ENDSUBENT 54 0 D021800499999 ENDENTRY 4 0 D021899999999