/*===================================================================*/ /* NRDF D0190 Data No.1 */ /*===================================================================*/ /* Bibliography */ /*===================================================================*/ \\BIB,1; D#=D190; TITLE=/A STUDY OF THE 22NE(P,GAMMA)23NA REACTION IN THE ENERGY REGION E(P)=1.1 TO 2.0 MEV/; PURPOSE=/TO IMPROVE ON THE ACCURACIES OF THE PROTON ENERGIES AND STRENGTHS OF THE RESONANCES ABOVE 1 MEV AND TO OBTAIN ADDITIONAL INFORMATION ON THE BOUND LEVELS OF 23NA./; ATH=(J.J.A.SMIT'1',M.A.MEYER'1',J.P.L.REINECKE'1',D.REITMANN'1'); INST-ATH=(3SAFPOT'1'); REF=NP/A; VLP=318(1979)111; RCTS=(22NE(P,GAMMA)23NA); /*===================================================================*/ /* Experimental Conditions */ /*===================================================================*/ \\EXP,1; RCT=22NE(P,GAMMA)23NA; ENR=X%; CHM=ELM; THK-TGT=X'4'; BAC=SELF'3'; /*@3@*/ POL-TGT=NO; ALGN-TGT=NO; /*@4@*/ ACC=(VDG); INST-ACC=3SAFPOT; INC-ENGY-RANGE=1.11(X)1.91; ERS-PRJ=1KEV; BEAM-INTNSTY=20[50UA; POL-PRJ=NO; DET-PARTCL=(GAMMA); DET-SYS=(MAG+GE(LI),NAI'5'); /*@5@*/ ERS-DET=2.6[10KEV; ANL=(X'59'); PHQ=(EXC-FUNCT,ENGY-SPEC,RESN-ENGY,WDTH-RATIO,PTY,INTNSTY-GAMMA); /*===================================================================*/ /* Descriptive Parameters */ /*===================================================================*/ \\DATA,1; INC-ENGY=1.10[1.91MEV; CMPD=23NA; RSD=23NA; /*'6'*/ /*@6@*/ /*@7@*/ UE=8792.5+-0.9KEV(REF., A.H.WAPSTRA ET AL., ATOMIC DATA AND NUCL. DAT A TABLES 19 (1977)175. @@15; '15' REF.,P.M.ENDT AND C.VAN DER LEUN, NUCL.PHYS.,TO BE PUBLISHED, UN LESS OTHERWISE INDICATED. @@21; DATA=DECAY TO 0.0MEV(3/2,+) STATE IN 23NA @@22; DATA=DECAY TO 0.44MEV(5/2,+) STATE IN 23NA @@23; DATA=DECAY TO 2.08MEV(7/2,+) STATE IN 23NA @@24; DATA=DECAY TO 2.39MEV(1/2,+) STATE IN 23NA @@25; DATA=DECAY TO 2.64MEV(1/2,-) STATE IN 23NA @@26; DATA=DECAY TO 2.70MEV(9/2,+) STATE IN 23NA @@27; DATA=DECAY TO 2.98MEV(3/2,+) STATE IN 23NA @@28; DATA=DECAY TO 3.68MEV(3/2,-) STATE IN 23NA @@29; DATA=DECAY TO 3.85MEV(5/2,-) STATE IN 23NA @@30; DATA=DECAY TO 3.91MEV(5/2,+) STATE IN 23NA @@31; DATA=DECAY TO 4.43MEV(1/2,+) STATE IN 23NA @@32; DATA=DECAY TO 4.78MEV(7/2,+) STATE IN 23NA @@33; DATA=DECAY TO 5.38MEV(3/2,5/2,+) STATE IN 23NA @@34; UNIT= % @@12; COMMENT= THE BRANCHINGS OF THE E(PROTON)=1312,1340,1351,1381,1392,161 5,1792 AND 1819 KEV RESONANCES ARE REPORTED HERE FOR THE FIRST TIME. @@13; METHOD= THE ENERGIES OF SEVENTEEN BOUND LEVELS WITH EXC-ENERY > 5 MEV WERE DETERMINED FROM 90 DEGREE SPECTRA IN ORDER TO ELIMINATE DOPPLER S HIFTS. THE ENERGY CALIBRATION FOR THESE MEASUREMENTS WAS OBTAINED BY PLACING RADIOACTIVE SOURCE NEAR THE DETECTOR AND BY USING PRIMARY AND SECONDARY TRANSITIONS TO AND FROM LEVELS WITH EXC-ENERGY < 5 MEV. @@17; ANALYSIS= THE EXCITATION ENERGIES OF THE RESONANCE STATES WERE CALCUL ATED USING THE Q-VALUE=8792.5+-0.9KEV AND THE PROTON ENERGIES OBTAINE D IN THE PRESENT EXPERIMENT. @@18; '18' TABLE= EXCITATION ENERGIES AND GAMMA-DECAY OF BOUND LEVOLS IN 23 NA. @@19; '19' ENERGIES WITH ERRORS ARE FROM PRESENT EXPERIMENT; FOR REMAINDER SEE REF.,P.M.ENDT AND C.LEUN, NUCL.PHYS., TO BE PUBLISHED. @@35; DATA=DECAY TO UNKNOWN STATES @@36; '36' PRESENT EXPERIMENTAL DETERMINATION FO SPIN-PARITY. @@37; '37' DECAY TO OTHER LEVELS; 15+-5 TO 3.68KEV,60+-10 TO 3.85 KEV STATE @@39; '39' DECAY TO OTHER LEVELS; 70+-15 TO 3.85 KEV STATE. @@38; '38' THE TRANSITION IN QUESTION HAS BEEN OBSERVED FOR THE GROUND STAT E. @@20; '20' METHOD = DOPPLER SHIFT ATTENUATION(DSA) METHOD. THE GAMMA-RAY DO PPLER SHIFTS WERE MEASURED WITH THE DETECTOR AT 0 AND 130 DEGREE WITH RESPECT TO THE PROTON BEAM. @@40; '40' ANALYSIS = CORRECTIONS DUE TO THE FINITE SIZE OF THE DETECTOR WE RE INTRODUCED AND ALL THE LEVELS STUDIED WERE EXCITED BY PRIMARY TRAN SITIONS ONLY. @@41; '41' DOPPLER SHIFT ATTENUATION FACTOR,F, DEFINED AS THE RATIO OF THE OBSERVED SHIFT AND THE FULL SHIFT. @@42; '42' TABLE = COMPARISON OF F-VALUES FOR DIFFERENT IMPLANTATION ENERGI ES FOR 22NE IONS INTO TA. @@43; '43' REF., A.ANTTILA ET AL., Z.PHYS. A274(1975)227. THE IMPLANATION E NERGY FOR THE 22NE WAS 5 KEV. @@44; '44' REF. M.BISTER ET AL., ANN.ACAD.SCI.FENNICAE, SER. AVI(1970)N0.34 9. THE IMPLANATION ENERGY FOR THE 22NE WAS 60 KEV. @@45; '45' PRESENT EXPERIMENT. THE IMPLANATION ENERGY FOR THE 22NE IONS WAS 3 KEV. @@46; '46' ANALYSIS = THE F(T) CURVES USED IN THIS EXPERIMENT WERE CALCULAT ET BY A.ANTTILA(PRIVATE COMMUNICATION) USING THEIR MONTE-CARLOP ROGRA M AND THEIR EXPERIMENTAL STOPPING POWER PARAMETERS(SEE.REF., A.ANTTIL /*===================================================================*/ /* Data Table */ /*===================================================================*/ \DATA; RESN-ENGY RESN-ENGY-ERR DATA'6,8,10' DATA'6,9' (KEV) (KEV) (EV) (EV) 1105.0 1.0 4.3 5.5 1146.6 0.6 3.0 X 1173.9 0.6 1.2 X 1264.1 0.6 2.2 X 1280.2 0.5 21 23 1312.0 0.6 0.4 X 1334.6 0.6 5.5 5.3 1340.1 0.5 2.4 X 1351.2 0.5 1.6 X 1380.7 0.5 1.3 X 1392.3 0.5 2.8 X 1432.7 0.5 X X 1438.0 0.5 5.4 5.3 1504.1 1.0 8.9 5.5 1515.5 1.4 2.2 X 1555.0 0.6 2.8 2.7 1593.2 0.6 10 6.6 1614.8 0.7 2.1 X 1622.5 0.7 9.1 6.2 1630.6 0.7 6.0 7.4 1721.3 1.0 13 8.3 1729.8 1.2 3.5 X 1761.3 0.7 5.1 4.7 1785.4 0.7 6.6 4.5 1791.6 0.7 1.0 X 1803.4 0.7 4.4 3.2 1819.1 0.7 1.5 X 1834.9 0.9 11 8.9 1861.4 0.8 2.3 1.4 1905.6 0.8 7.5 5.6 \END; /*===================================================================*/ |