ENTRY O0735 20010323 0000O073500000001 SUBENT O0735001 20010323 0000O073500100001 BIB 12 41 O073500100002 TITLE Efficiency and Delay of the Fission Ion Guide For on- O073500100003 Line Mass Separation. O073500100004 AUTHOR (P.TASKINEN, H.PENTTILA, J.AYSTO, P.DENDOOVEN, P.JAUHO,O073500100005 A.JOKINEN, M.YOSHII) O073500100006 INSTITUTE (2SF JYV) O073500100007 REFERENCE (J,NIM/A,281,539,1989) O073500100008 HISTORY (20000425C) O073500100009 (20000704U) Last checking has been done. O073500100010 (20010323A) DATE is corrected O073500100011 SAMPLE The Four 15.0 Mg/Cm**2 Uranium-238 Target were Used. O073500100012 A Curved Foil is Used to Separate the Targets from the O073500100013 Stopping Volume.The O.9 Mg/Cm**2 Ni-Foil Around the O073500100014 Four Uranium Targets Shields the Beam Produced Plasma O073500100015 From the External Gas Volume Used to Thermalize and O073500100016 Transport Radioactive Ions.Helium As a Transport Gas O073500100017 Enters from the Left and Exits with Ions to the Right O073500100018 Was Used. O073500100019 ADD-RES (COMP).A Monte Carlo Method. O073500100020 COMMENT /by Authors/. The Measured Effective Delay Time O073500100021 Distribution Shows That the Fission Ion Duide is Also O073500100022 Well Applicable to Separation of Activities with Ms O073500100023 Half-Lives.This is Further Confirmed by the ObservationO073500100024 Of the 18(2) Ms Pd-117-M Isomeric State Directly O073500100025 Populated in Fission. O073500100026 The Main Reason For the Low Efficiency of About 10E-03 O073500100027 Results from the Inadequate Stopping of Fission O073500100028 Fragments in a Low Pressure (100 MBAR) Helium.At this O073500100029 Pressure Diffusion is Observed to be the Dominant O073500100030 Mechanism of Loss of Thermalized Ions.At Higher O073500100031 Pressures and with the Presence of Strongly Ionizing O073500100032 Beam Particles, Such As Heavy Ions, Recombination is O073500100033 Expected to Lead to Severe Losses. O073500100034 FACILITY (CYCLO,2SF JYV) O073500100035 DETECTOR Gamma Detectors were Used.Another Information is O073500100036 Absent. O073500100037 METHOD (OLMS) The on-Line Mass Separator Igisol, Which is O073500100038 Based on the Thermalization of Fission Fragments in O073500100039 High Pressure Gas As Singly Charged Ions. O073500100040 (BCINT) O073500100041 (GSPEC) O073500100042 STATUS (CURVE).By CAJAD. O073500100043 ENDBIB 41 0 O073500100044 NOCOMMON 0 0 O073500100045 ENDSUBENT 44 0 O073500199999 SUBENT O0735002 20010323 0000O073500200001 BIB 5 11 O073500200002 REACTION (92-U-238(P,F)ELEM/MASS,,PY,,REL) O073500200003 ERR-ANALYS (ERR-T).The Uncertainty is Shown by Authors on Figure O073500200004 (ERR-DIG) Data-Point Reader Uncertainty. O073500200005 FLAG (1.).It is Value For Rh-117 is Only Tentative and is O073500200006 Based on the 97 and 131-KeV Gamma-Rays Preliminary O073500200007 Assigned to this Decay. O073500200008 COMMENT /by Authors/.The Cumulative Yield of the Given Rh- O073500200009 Isotopes were Extracted from the Saturation Activities O073500200010 By Correcting For the Absolute Efficiency of the Gamma-O073500200011 Detectors As Well As For the Branching Ratios. O073500200012 PART-DET (DG) O073500200013 ENDBIB 11 0 O073500200014 COMMON 3 3 O073500200015 EN ERR-DIG ELEMENT O073500200016 MEV PER-CENT NO-DIM O073500200017 20. 2.5 45. O073500200018 ENDCOMMON 3 0 O073500200019 DATA 4 8 O073500200020 MASS DATA ERR-T FLAG O073500200021 NO-DIM ARB-UNITS PER-CENT NO-DIM O073500200022 110. 869. O073500200023 111. 1220. O073500200024 112. 1200. 30. O073500200025 113. 695. O073500200026 114. 411. O073500200027 115. 267. O073500200028 116. 130. 40. O073500200029 117. 8. 90. 1. O073500200030 ENDDATA 10 0 O073500200031 ENDSUBENT 30 0 O073500299999 ENDENTRY 2 0 O073599999999