ENTRY AHR81 0 AHR81 0 1 SUBENT AHR81 1 0 AHR81 1 1 BIB 12 31 AHR81 1 2 INSTITUTE (SFHLS) AHR81 1 3 REFERENCE (J,JRC,62,293,1981) AHR81 1 4 AUTHORS (A.ANTTILA,R.HANNINEN,J.RAISANEN) AHR81 1 5 TITLE PROTON-INDUCED THICK-TARGET GAMMA-RAY YIELDS FOR THE AHR81 1 6 ELEMENTAL ANALYSIS OF THE Z=3-9, 11-21 ELEMENTS AHR81 1 7 FACILITY (VDG) 2.5-MV VAN DE GRAAFF ACCELERATOR, HELSINKI AHR81 1 8 UNIVERSITY, HELSINKI, FINLAND. AHR81 1 9 INC-PART (P) PROTONS. AHR81 1 10 TARGETS POWDERED COMPOUNDS PRESSED INTO PELLETS. CHEMICAL AHR81 1 11 COMPOSITION OF PHOSPHORUS TARGET NOT MENTIONED. TARGET AHR81 1 12 SIZE 1-MM THICK BY 6-MM DIAMETER. AHR81 1 13 METHOD PROTON-INDUCED GAMMA-RAY EMISSION (PIGE) TECHNIQUE WAS AHR81 1 14 EMPLOYED. PROTON BEAMS OF 1, 1.7, AND 2.4 MEV ARE USED AHR81 1 15 IN THE EXPERIMENT. THE BEAM CURRENTS WERE IN THE RANGE AHR81 1 16 1-NANOAMP TO 1-MICROAMP. LIQUID NITROGEN COOLED TRAP AHR81 1 17 TO PREVENT CONTAMINANT BUILDUP ON THE TARGET. TARGET AHR81 1 18 WAS COOLED WITH WATER OR LIQUID NITROGEN. TARGET WAS AHR81 1 19 PLACED AT 45-DEG RELATIVE TO INCIDENT PROTON BEAM. AHR81 1 20 MEASURED EMITTED GAMMA RAYS. WHEN ELEMENT APPEARED IN AHR81 1 21 A COMPOUND, MEASUREMENTS ARE MADE FOR OTHER COMPONENTS AHR81 1 22 OF THE COMPOUND TO SIMPLIFY BACKGROUND IDENTIFICATION. AHR81 1 23 SPECTRA WERE NORMALIZED TO INCIDENT PROTON CHARGE. AHR81 1 24 YIELDS OF PROMINENT GAMMA-RAY FULL-ENERGY PEAKS WERE AHR81 1 25 DEDUCED FROM THE MEASURED SPECTRA. AHR81 1 26 DETECTOR (GELI) 110 CM-3 GE(LI) DETECTOR AT 4-CM FROM TARGET AHR81 1 27 AT 55-DEG RELATIVE TO INCIDENT PROTON BEAM. AHR81 1 28 MONITOR (CI) CURRENT INTEGRATOR. AHR81 1 29 CORRECTION DATA WERE CORRECTED FOR DETECTOR RECORDING DEAD TIME AHR81 1 30 AND STOPPING POWERS OF IRRADIATED MATERIALS. AHR81 1 31 ERR-ANALYS ERRORS NOT GIVEN. AUTHORS NOTE THAT STOPPING POWER AHR81 1 32 ERRORS ALONE COULD BE AS LARGE AS 20 PERCENT. AHR81 1 33 ENDBIB 31 AHR81 1 34 ENDSUBENT 1 AHR81 199999 SUBENT AHR81 2 0 AHR81 2 1 BIB 2 5 AHR81 2 2 REACTION 31P(P,GAMMA)32S AHR81 2 3 COMMENTS THICK-TARGET GAMMA-RAY YIELD VALUES FOUND IN TABLE 1. AHR81 2 4 RESULTS CORRESPOND TO 1266 KEV GAMMA RAY. EP = PROTON AHR81 2 5 ENERGY. YLD = GAMMA-RAY YIELD IN UNITS DIM1. DIM1 = AHR81 2 6 COUNTS/MICRO-COULOMB/STERADIAN. AHR81 2 7 ENDBIB 5 AHR81 2 8 DATA 2 2 AHR81 2 9 EP YLD AHR81 2 10 MEV DIM1 AHR81 2 11 1.7 7.2 AHR81 2 12 2.4 3.8000E+04 AHR81 2 13 ENDDATA 4 AHR81 2 14 ENDSUBENT 2 AHR81 299999 SUBENT AHR81 3 0 AHR81 3 1 BIB 2 5 AHR81 3 2 REACTION 31P(P,GAMMA)32S AHR81 3 3 COMMENTS THICK-TARGET GAMMA-RAY YIELD VALUES FOUND IN TABLE 1. AHR81 3 4 RESULTS CORRESPOND TO 1779 KEV GAMMA RAY. EP = PROTON AHR81 3 5 ENERGY. YLD = GAMMA-RAY YIELD IN UNITS DIM1. DIM1 = AHR81 3 6 COUNTS/MICRO-COULOMB/STERADIAN. AHR81 3 7 ENDBIB 5 AHR81 3 8 DATA 2 1 AHR81 3 9 EP YLD AHR81 3 10 MEV DIM1 AHR81 3 11 2.4 20. AHR81 3 12 ENDDATA 3 AHR81 3 13 ENDSUBENT 3 AHR81 399999 SUBENT AHR81 4 0 AHR81 4 1 BIB 2 5 AHR81 4 2 REACTION 31P(P,GAMMA)32S AHR81 4 3 COMMENTS THICK-TARGET GAMMA-RAY YIELD VALUES FOUND IN TABLE 1. AHR81 4 4 RESULTS CORRESPOND TO 2230 KEV GAMMA RAY. EP = PROTON AHR81 4 5 ENERGY. YLD = GAMMA-RAY YIELD IN UNITS DIM1. DIM1 = AHR81 4 6 COUNTS/MICRO-COULOMB/STERADIAN. AHR81 4 7 ENDBIB 5 AHR81 4 8 DATA 2 3 AHR81 4 9 EP YLD AHR81 4 10 MEV DIM1 AHR81 4 11 1.0 1.3 AHR81 4 12 1.7 17. AHR81 4 13 2.4 35. AHR81 4 14 ENDDATA 5 AHR81 4 15 ENDSUBENT 4 AHR81 499999 ENDENTRY 4 AHR819999999