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 /* NRDF D1890 Data No.2                                              */
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 /* Bibliography                                                      */
 /*===================================================================*/
 \\BIB,2;
 D#=D1890;
 TITLE=/ Precise measurement of the cross section of 3He(3He,2p)4He
         by using 3He doubly charged beam /;
 ATH=(N.KUDOMI'1', M.KOMORI'2', K.TAKAHISA'1', S.YOSHIDA'1', K.KUME'3',
      H.OHSUMI'4', T.ITAHASHI'1');
 INST-ATH=(2JPNRCN'1', 2JPNIRS'2', 2JPNWER'3', 2JPNJPN'4');
      /* '4' Faculty of Culture and Education, Saga University, Saga
 REF=PR/C;
 VLP=69(2004)015802;
 /* Secondary reference 
    - NP/A, 718(2003)466 (T.Itahashi et al., Proc. of the Seventh
      International Symposium on Nuclei in the Cosmos (NIC7))
 RCTS=3HE(3HE,2*P)4HE;
 PHQS=(XSECTN, ASTR-SFCTR);
 /*===================================================================*/
 /* Experimental Conditions                                           */
 /*===================================================================*/
 \\EXP,2;
 /* 2004-04-16 : Compiled+Checked, C.Kurokawa + N.Otuka */
 /* 2006-10-04 : Altered, N.Otuka. Reference (NIC7) added */
 /* Related references 
    - T.Itahashi et al., RSI, 69(1998)1032.
    (Performance and design of ion source)
    - T.Itahashi et al., RSI, 71(2000)1075.
    (Performance and design of ion source)
 CHM=ELM;
 PHYS-FORM=GAS'6';
 /* '6' Windowless gas target consists of a differential pumping
        and gas circulation/purification system */
 THK-TGT=XMG/CM**2'7';
 /* '7' 0.75 Torr */
 POL-TGT=0%;
 ALGN-TGT=0%;
 ACC=X'8';
 /* '8' Accelerator, NANOGUN ECR ion source with specially
        designed ceramic insulator */
 INST-ACC=2JPNOSA;
 INC-ENGY-CM-RANGE=31.2[45.3KEV'9';
 /* '9' Effective reaction energy has 0.15% error, taking into
        account accuracy of 0.1% for acceleration voltage, 10% for
        stopping power, and 0.09% for energy spread in target */
 BEAM-INTNSTY=200UA;
 CHRG-INC-ION=2+;
 POL-PRJ=0%;
 DET-PARTCL=(ALPHA,P);
 COINC=(P,P,ALPHA);
 ANT-COINC=NO;
 DET-SYS=(SSD'10',SSD'11',EDE'12');
 /* '10' Delta E counters with FWHM of 100-120 keV for 5.48 MeV
         alpha particle */
 /* '11' E counters with FWHM of 70-100 keV for 5.48 MeV alpha
         particle */
 /* '12' 4 delta E-E counter telescopes */
 /* Related references 
    - A.Krauss et al., NP/A, 467(1987)273.
    Reference with which data agree (The accuracy of both statistical
    and systematic uncertainties of the present measurement is better
    than that in this work.)
 RCT=3HE(3HE,2*P)4HE;
 PHQ=ASTR-SFCTR;
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 /* Descriptive Parameters                                            */
 /*===================================================================*/
 \\DATA,2;
 SYS-ERR=(0.15%'13',2%'14',1.3%'15',3%'16');
 /* '13' Uncertainty in reaction energy */
 /* '14' Uncertainty in beam intensity */
 /* '15' Uncertainty in target density */
 /* '16' Uncertainty in detection efficiency */
 SYS-ERR=3.8%'17';
 /* '17' Total systematic error */
 /*===================================================================*/
 /* Data Table                                                        */
 /*===================================================================*/
 \DATA;
 INC-ENGY-CM ASTR-SFCTR DELTA-ASTR-SFCTR'18'
 (KEV) (MEV*B) (MEV*B)
 31.2 6.40 +-0.39
 33.1 5.48 +-0.22
 35.2 5.62 +-0.21
 37.3 5.46 +-0.20
 39.3 5.69 +-0.25
 41.3 5.51 +-0.18
 43.3 5.43 +-0.14
 45.3 5.39 +-0.09
 \END;
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