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 /* NRDF D1888 Data No.4                                              */
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 /* Bibliography                                                      */
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 \\BIB,4;
 D#=D1888;
 TITLE=/ alpha-decays of neutron-deficient americium isotopes /;
 PURPOSE=/ To present new and improved data on the alpha-decay of
          233Am, 234Am, 235Am, 236Am, and 229Np (alpha-decay daughter of
          233Am) /;
 ATH=(M.SAKAMA'1', M.ASAI'2', K.TSUKADA'2', S.ICHIKAWA'2',
      I.NISHINAKA'2', Y.NAGAME'2', H.HABA'3', S.GOTO'4', M.SHIBATA'5',
      K.KAWADE'6', Y.KOJIMA'7', Y.OURA'8', M.EBIHARA'8',
      H.NAKAHARA'8');
 INST-ATH=(2JPNTKS'1', 2JPNJAE'2', 2JPNIPC'3', 2JPNNII'4', 2JPNNAG'5',
           2JPNNAG'6', 2JPNHIR'7', 2JPNTMU'8');
      /* '1' Department of Radiologic Science and Engineering, School of
            Health Sciences */
      /* '2' Advanced Science Research Center */
      /* '3' Cyclotron Center */
      /* '4' Department of Chemistry */
      /* '5' Radioisotope Research Center */
      /* '6' Department of Energy Engineering and Science */
      /* '7' Graduate School of Engineering */
      /* '8' Department of Chemistry */
 REF=PR/C;
 VLP=69(2004)014308;
 RCTS=(235U(6LI,5*N)236AM, 233U(6LI,4*N)235AM, 233U(6LI,5*N)234AM,
       233U(6LI,6*N)233AM);
 PHQS=XSECTN;
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 /* Experimental Conditions                                           */
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 \\EXP,4;
 /* 2004-04-14 : Compiled, Kc + On */
 PHQ=XSECTN;
 ENR=X%;
 CHM=X'9';
 /* '9' UO2(NO3)2 */
 BAC=AL'10';
 /* '10' UO2(NO3)2 in 2-propanol is electrodeposited onto aluminum
         backing foil. */
 THK-BAC=0.9MG/CM**2;
 POL-TGT=0%;
 ALGN-TGT=0%;
 ACC=VDGT;
 INST-ACC=2JPNJAE;
 BEAM-INTNSTY=250[340PNA;
 POL-PRJ=0%;
 ANT-COINC=NO;
 DET-SYS=(SI'11',GE(LI)'12');
 /* '11' To measure alpha particles with efficiency of 85%. Energy
         resolution is about 45 keV. */
 /* '12' To measure X rays following EC decay. Coaxial type. FWHM=
         0.66 keV at 122 keV gamma-ray. */
 /* Experimental Method:
    - Stacked target irradiation (A stack of 21 targets set in a
      multiple-target chamber with 5 mm spacing)
    - Collection by He jet (Products attached to the PbI2 aerosol
      clusters were swept out of the target chamber)
    - On-line mass separation (JAERI-ISOL. Mass resolution of A/Delta
      A is about 850 at the mass number A=208 [S. Ichikawa et al.,
      Nucl. Instrum. Methods B187(2002)548].)
 /* Analysis:
    - Decay curve analysis
 /* Related references 
    - R.L.Hahn et al., NP/A, 113(1968)206.
    Reference with which data agress (Half-life, alpha energy and
    abundance of 229Np is 4.0+-0.2 min, 6890+-20 keV, and larger than
    0.50, respectively, in this work.)
 RCT=233U(6LI,6*N)233AM;
 THK-TGT=0.05[0.13MG/CM**2;
 INC-ENGY-LAB=52[60MEV;
 DET-PARTCL=(ALPHA'22',ALPHA'23');
 /* '22' Alpha from 233Am. Decay data in present experiment. T1/2=
         3.2+-0.8 min and intensity I>3e-2. */
 /* '23' Alpha from 229Np. Decay data in present experiment. T1/2=
         4.0+-0.4 min and intensity I= 0.68+-0.11. */
 COINC=ALPHA'24';
 /* '24' Alpha chain from 225Pa to 213At is detected. */
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 /* Descriptive Parameters                                            */
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 \\DATA,4;
 RSD=233AM;
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 /* Data Table                                                        */
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 \DATA;
 XSECTN-MAX
 (UB)
 0.9
 \END;
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