ENTRY I+93 0 I+93 0 1 SUBENT I+93 1 0 I+93 1 1 BIB 12 59 I+93 1 2 INSTITUTE (USANOT) I+93 1 3 (GERBOC) I+93 1 4 (CANKQU) I+93 1 5 REFERENCE (J,NP/A,559,83,1993) I+93 1 6 AUTHORS (C.ILIADIS,J.GOERRES,J.G.ROSS,K.W.SCHELLER,M.WIESCHER, I+93 1 7 C.GRAMA,TH.SCHANGE,H.P.TRAUTVETTER,H.C.EVANS) I+93 1 8 TITLE EXPLOSIVE HYDROGEN BURNING OF 31P I+93 1 9 FACILITIES (C-W) 400-KV COCKCROFT-WALTON ACCELERATOR, RUHR I+93 1 10 UNIVERSITAET, BOCHUM, FEDERAL REPUBLIC OF GERMANY. I+93 1 11 SNICS ION SOURCE, UNIVERSITY OF NOTRE DAME, NOTRE I+93 1 12 DAME, INDIANA. I+93 1 13 INC-PART (P) PROTONS. I+93 1 14 TARGETS AN IMPLANTED 31P TARGET WAS PRODUCED BY BOMBARDING A I+93 1 15 0.25-MM-THICK TANTALUM BACKING WITH 31P IONS USING I+93 1 16 THE SNICS SOURCE AT NOTRE DAME. TARGET THICKNESS WAS I+93 1 17 13 KEV AT EP = 355 KEV. TARGET STOICHIOMETRY WAS I+93 1 18 DETERMINED FROM THE WELL-KNOWN STRENGTH OF THE I+93 1 19 31P(P,GAMMA)32S RESONANCE AT EP = 811 KEV. USING I+93 1 20 STOPPING POWER TABLES FROM ANDERSON AND ZEIGLER, I+93 1 21 THE RATIO TA/P WAS FOUND TO BE 0.8 (WITH 25% ERROR). I+93 1 22 THE TARGET WAS FOUND TO BE STABLE BY TESTS DONE I+93 1 23 THROUGHOUT THE COURSE OF THE EXPERIMENT. I+93 1 24 METHOD PROTON BEAMS OF 80 TO 180 MICROAMPERES IN THE ENERGY I+93 1 25 RANGE EP = 160 TO 370 KEV WERE PROVIDED BY THE BOCHUM I+93 1 26 ACCELERATOR. THE PARTICLE ENERGY WAS CALIBRATED USING I+93 1 27 WELL-KNOWN RESONANCES IN 14N(P,GAMMA)15O AND IN I+93 1 28 27AL(P,GAMMA)28SI. THE ENERGY SPREAD WAS 1 KEV AND I+93 1 29 THE UNCERTAINTY IN THE ENERGY CALIBRATION WAS ALSO I+93 1 30 1 KEV. THE PROTON BEAM WAS COLLIMATED TO FORM A I+93 1 31 PROFILE 1.5 CM IN DIAMETER ON THE TARGET. THE TARGET I+93 1 32 WAS DIRECTLY WATERCOOLED AND MOUNTED AT 45 DEGREES I+93 1 33 WITH RESPECT TO THE PROTON BEAM. THE GAMMA-RAYS I+93 1 34 EMITTED DURING DE-EXCITATION OF THE 32S STATES I+93 1 35 EXCITED BY THE 31P(P,GAMMA)32S REACTION WERE I+93 1 36 MEASURED WITH A GE(LI) DETECTOR PLACED AT 55 DEGREES I+93 1 37 WITH RESPECT TO THE PROTON BEAM AT A DISTANCE OF I+93 1 38 1.5 CM. RELATIVE GAMMA-RAY EFFICIENCIES WERE I+93 1 39 MEASURED FOR EGAMMA = 0.25 TO 11.6 MEV USING A I+93 1 40 CALIBRATED 152EU SOURCE AS WELL AS KNOWN GAMMA I+93 1 41 RAYS FROM 14N(P,GAMMA)15O AT THE EP = 278 KEV I+93 1 42 RESONANCE AND 11B(P,GAMMA)12C AT THE EP = 163 KEV I+93 1 43 RESONANCE. GAMMA-RAY YIELDS WERE MEASURED OVER THE I+93 1 44 PROTON ENERGY RANGE 195 TO 370 KEV WITH CHARGE I+93 1 45 ACCUMULATIONS OF 1 TO 2 COULOMB. TWO RESONANCES I+93 1 46 IN 31P(P,GAMMA) WERE OBSERVED DURING THE COURSE I+93 1 47 OF THIS WORK AT EP = 200 AND 355 KEV, RESPECTIVELY. I+93 1 48 THE RESONANCE AT EP = 200 KEV HAD NOT BEEN SEEN I+93 1 49 PREVIOUSLY. THE STRENGTH OF THIS NEWLY DISCOVERED I+93 1 50 EP = 200 KEV RESONANCE WAS DETERMINED RELATIVE TO I+93 1 51 THAT OF THE BETTER-KNOWN EP = 355 KEV RESONANCE. I+93 1 52 DETECTOR (GELI) 100-CM**3 GE(LI) DETECTOR. I+93 1 53 MONITOR (CI) CURRENT INTEGRATOR. I+93 1 54 CORRECTION DATA CORRECTED FOR ENERGY LOSS IN THE CARBON-BUILDUP I+93 1 55 LAYER ON THE TARGET BY MONITORING THE INTENSITY AND I+93 1 56 WIDTH OF THE PRIMARY GAMMA-RAY PEAK RESULTING FROM I+93 1 57 13C(P,GAMMA)13N. DATA WERE ALSO CORRECTED FOR I+93 1 58 COINCIDENT SUMMING AND STOPPING POWER EFFECTS. I+93 1 59 ERR-ANALYS ERRORS ARE GIVEN. SOME DETAILS CAN BE FOUND IN THE I+93 1 60 ORIGINAL PAPER. I+93 1 61 ENDBIB 59 I+93 1 62 ENDSUBENT 1 I+93 199999 SUBENT I+93 2 0 I+93 2 1 BIB 2 16 I+93 2 2 REACTION 31P(P,GAMMA)32S I+93 2 3 COMMENTS PROPERTIES OF RESONANCES NEAR THE PROTON THRESHOLD I+93 2 4 OF 32S ARE GIVEN. INFORMATION OBTAINED FROM TABLE 1 I+93 2 5 OF THE PAPER. EP = PROTON ENERGY. NOTE: A NEGATIVE I+93 2 6 VALUE SIGNIFIES A BOUND STATE IN 32S. EP-ERR = ERROR I+93 2 7 IN EP. EX = EXCITATION ENERGY OF RESONANT STATE IN I+93 2 8 32S. EX-ERR = ERROR IN EX. J-PI = SPIN/PARITY OF THE I+93 2 9 RESONANT STATE IN 32S. A NEGATIVE VALUE INDICATES I+93 2 10 NEGATIVE PARITY. OTHERWISE PARITY IS POSITIVE. TAU = I+93 2 11 ISOBARIC SPIN OF 32S LEVEL. S = RESONANCE STRENGTH = I+93 2 12 [(2J+1)/(2JP+1)*(2JT+1)]*GAMMA(P)*GAMMA(G)/GAMMA(TOT), I+93 2 13 WHERE J = RESONANCE SPIN, JP = PROTON SPIN = 0.5, JT = I+93 2 14 TARGET (31P) SPIN = 0.5, GAMMA(P) = PROTON WIDTH, I+93 2 15 GAMMA(G) = GAMMA-RAY WIDTH, AND GAMMA(TOT) = TOTAL I+93 2 16 WIDTH OF THE RESONANCE. S-ERR = ERROR IN S. A BLANK I+93 2 17 SPACE INDICATES VALUE NOT GIVEN IN THE TABLE. I+93 2 18 ENDBIB 16 I+93 2 19 DATA 8 12 I+93 2 20 EP EP-ERR EX EX-ERR J-PI TAU I+93 2 21 S S-ERR I+93 2 22 KEV KEV KEV KEV NO-DIM NO-DIM I+93 2 23 EV EV I+93 2 24 -3.5 8861. 2. 0. I+93 2 25 I+93 2 26 164. 9023. -3. 0. I+93 2 27 1.0000E-10 I+93 2 28 200. 2. 9059. 2. I+93 2 29 4.8000E-07 1.6000E-07 I+93 2 30 207. 9065. 4. 0. I+93 2 31 3.3000E-09 I+93 2 32 315. 9170. 3. 1. I+93 2 33 3.7000E-05 I+93 2 34 342. 9196. 2. I+93 2 35 6.1000E-05 I+93 2 36 355. 9208. 1. 1. I+93 2 37 4.2000E-03 7.0000E-04 I+93 2 38 383. 9236. -1. 0. I+93 2 39 6.0000E-05 1.2000E-05 I+93 2 40 403. 9255. 2. 1. I+93 2 41 4.5000E-04 7.0000E-05 I+93 2 42 439. 9290. 1. I+93 2 43 0.025 0.004 I+93 2 44 541. 9389. -2. I+93 2 45 0.12 0.02 I+93 2 46 619. 9464. 2. 0. I+93 2 47 1.1000E-03 2.0000E-04 I+93 2 48 ENDDATA 28 I+93 2 49 ENDSUBENT 2 I+93 299999 ENDENTRY 2 I+939999999