ENTRY C1968 20140329 C140C196800000001 SUBENT C1968001 20140329 C140C196800100001 BIB 10 44 C196800100002 TITLE Measurement of the 33S(alpha,p)36Cl cross section: C196800100003 Implications for production of 36Cl in the early C196800100004 Solar System C196800100005 AUTHOR (M.Bowers,Y.Kashiv,W.Bauder,M.Beard,P.Collon,W.Lu, C196800100006 K.Ostdiek,D.Robertson) C196800100007 Original authors included K.Chamberlin,C.Schmitt C196800100008 INSTITUTE (1USANOT,3ISLHEB) C196800100009 REFERENCE (J,PR/C,88,065802,2013) Main reference C196800100010 (J,NIM/B,294,491,2013) Preliminary data C196800100011 FACILITY (VDGT,1USANOT) Experiment was performed at the Nuclear C196800100012 Science Lab at the University of Notre Dame using C196800100013 11 MV FN tandem accelerator C196800100014 SAMPLE Helium gas cell target separated by a 2.5 mu-m thick C196800100015 Ni foil (99.95%) from the beamline. High-purity helium C196800100016 filled the gas cell at the pressure of 5 Torr. The C196800100017 pressure and flow was controlled by a gas handling C196800100018 system which held the gas cell at constant pressure. C196800100019 A 0.25 mm thick Al foil (99.999%) was placed 24 cm C196800100020 from the entrance foil to collect the 36Cl produced. C196800100021 METHOD (ACTIV) Inverse kinematics was used and forward going C196800100022 reaction products 36Cl were collected by a Al foil C196800100023 (AMS) Samples, chemicaly treated to form AgCl were C196800100024 measured using atomic mass spectroscopy with the C196800100025 Magnet for Astrophysical Nucleosynthesis studies C196800100026 Through Isobar Separation (MANTIS) AMS system at the C196800100027 Nuclear Science Lab C196800100028 DETECTOR (MAGSP) AMS used Browne-Buechner spectrograph in C196800100029 which the ions are bent in a 1 m radius in a single C196800100030 dipole magnet equipped with two detectors. C196800100031 (PGAC)Parallel-Grid Avalanche Counter was placed at C196800100032 the exit of dipole magnet and gives the magnetic C196800100033 rigidity of the beam C196800100034 (IOCH) A 4-way split anode Ionization Chamber was C196800100035 placed atop the PGAC C196800100036 ANALYSIS The number of 36Cl nuclei produced, Y = 5.78E+9 atoms, C196800100037 was found by taking the amount of chlorine added to C196800100038 the sample during chemical processing (55 mg) and the C196800100039 36Cl/Cl concentration determined from the AMS C196800100040 measurement. Energy interval represents energy loss C196800100041 of incident particles in the target. C196800100042 HISTORY (20130110C) Compiled by S.H. C196800100043 (20140214C) Main reference compiled C196800100044 additional data added to subentry 2 C196800100045 error analysis updated C196800100046 ENDBIB 44 0 C196800100047 NOCOMMON 0 0 C196800100048 ENDSUBENT 47 0 C196800199999 SUBENT C1968002 20140329 C140C196800200001 BIB 5 15 C196800200002 REACTION ((2-HE-4(16-S-33,P)17-CL-36,,SIG,,AV)= C196800200003 (16-S-33(A,P)17-CL-36,,SIG,,AV)) C196800200004 STATUS (TABLE) Data taken from tab. 4 of the main reference C196800200005 ERR-ANALYS (ERR-T) Total uncertainty C196800200006 (ERR-1,3.0,8.0) Systematic uncertainty in incident C196800200007 beam intensity C196800200008 (ERR-2) Systematic uncertainty in stable Cl carrier C196800200009 atoms number C196800200010 (ERR-3) Systematic uncertainty in 4He target density C196800200011 (ERR-4) Systematic uncertainty in AMS standard C196800200012 composition C196800200013 (ERR-5,3.0,11.0) Statistical uncertainty in AMS C196800200014 standard composition C196800200015 DECAY-DATA (17-CL-36,3.01E+5YR) C196800200016 HISTORY (20140214C) S.H. Data added, ERR-ANALYS updated C196800200017 ENDBIB 15 0 C196800200018 NOCOMMON 0 0 C196800200019 DATA 5 6 C196800200020 EN-MIN EN-MAX DATA ERR-T DATA-MAX C196800200021 MEV/A MEV/A MB MB MB C196800200022 0.70 0.83 0.1 C196800200023 0.92 1.05 2.4 3.0 C196800200024 1.22 1.35 37.0 5.0 C196800200025 1.51 1.64 105.0 8.0 C196800200026 1.84 1.95 199.0 16.0 C196800200027 2.29 2.42 330.0 40.0 C196800200028 ENDDATA 8 0 C196800200029 ENDSUBENT 28 0 C196800299999 ENDENTRY 2 0 C196899999999