/*===================================================================*/ /* NRDF D1812 Data No.10 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,10; D#=D1812; TITLE=/ Beta-decay half-lives and beta-delayed neutron multiplicities of the neutron drip-line nuclei 19B, 22C, and 23N /; ATH=(K.YONEDA'1', N.AOI'1', H.IWASAKI'1', H.SAKURAI'2', H.OGAWA'3', T.NAKAMURA'1', W.-D.SCHMIDT-OTT'4', M.SCHAFER'4', M.NOTANI'2', N.FUKUDA'1', E.IDEGUCHI'2', T.KISHIDA'2', S.S.YAMAMOTO'5', M.ISHIHARA'1,2'); INST-ATH=(2JPNTOK'1', 2JPNIPC'2', 2JPNTIT'3', 2GERGOE'4', 2JPNJPN'5'); /* '1' Department of Physics */ /* '3' Department of Physics */ /* '4' Zweites Physikalisches Institut der Universitat Gottingen /* '5' Department of Physics, Sophia University, Tokyo */ REF=PR/C; VLP=67(2003)014316; RCTS=(TA(40AR,19B)X, TA(40AR,22C)X, TA(40AR,23N)X, TA(40AR,)X); PHQS=(HALF-LIFE, N-MLT'6'); /* '6' Beta-delayed neutron multiplicities */ /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,10; ENR=NAT; CHM=ELM; PHYS-FORM=SLD; THK-TGT=670MG/CM**2; BAC=SELF; POL-TGT=0%; ALGN-TGT=0%; ACC=X'7'; /* '7' Fragment separator, RIKEN projectile-fragment separator(RIPS)[T.Kubo, M.Ishihara, N.Inabe, H.Kumagai, I.Tanihata, K.Yoshida, T.Nakamura, H.Okuno, S.Shimoura, and K.Asahi, Nucl. Instrum. Methods Phys. Res. B 70, 309(1992)] */ INST-ACC=2JPNIPC; INC-ENGY-LAB=95MEV/A; POL-PRJ=0%; ANT-COINC=NO; DET-SYS=(MAG'8',SI'9',SCT'10',SCT'11',TOF'12'); /* '8' Used as ToF counter to identify mother nuclei */ /* '9' Used as delta E counter to identify mother nuclei */ /* '10' Active stopper (STPL) to detect beta rays */ /* '11' 13 liquid scintillation detectors to detect delayed neutron */ /* '12' Particle identification */ SOLID-ANGL=5MSR'13'; /* '13' */ /* Experimental Method: - Time-of-flight (Particle identification) - energy-loss(Delta-E) information for particle identification RCT=TA(40AR,)X; RTY=FRAG; PHQ=N-MLT'32'; /* '32' Beta-delayed neutron multiplicities */ DET-PARTCL=(N,BETAN); COINC=NO; /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,10; INC-ENGY-LAB=95MEV/A; /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; NUCL N-MLT'33' BRANCH-RATIO DELTA-BRANCH-RATIO (NODIM) (%) (%) 15B 1 99.68 +-X 19B 1 71.8 +8.3-9.1 19B 2 16.0 +5.6-4.8 19B 3 <9.1 +-X 20C 1 65 +19-18 20C 2 <18.6 +-X 22C 1 61 +14-13 22C 2 <37 +-X 22N 1 41 +12-10 22N 2 <13 +-X X 23N 1 42.2 +6.3 -6.5 23N 2 8.0 +3.8 -3.4 23N 3 <3.4 +-X X \END; /*===================================================================*/ |