ENTRY S+99 0 S+99 0 1 SUBENT S+99 1 0 S+99 1 1 BIB 12 46 S+99 1 2 INSTITUTE (GRC, INSTITUTE OF NUCLEAR TECHNOLOGY, RADIATION S+99 1 3 PROTECTION, NCSR "DEMOKRITOS", AGHIA PARASKEVI, S+99 1 4 ATTIKI, GREECE) S+99 1 5 (GRC, DEPARTMENT OF PHYSICS, THE UNIVERSITY OF S+99 1 6 IOANNINA, IOANNINA, GREECE) S+99 1 7 (GRC, INSTITUTE OF NUCLEAR PHYSICS, NCSR "DEMOKRITOS", S+99 1 8 AGHIA PARASKEVI, ATTIKI, GREECE) S+99 1 9 REFERENCE (J,NIM/B,152,12,1999) S+99 1 10 AUTHORS (A.SAVIDOU,X.ASLANOGLOU,T.PARADELLIS,M.PILAKOUTA) S+99 1 11 TITLE PROTON INDUCED THICK TARGET GAMMA-RAY YIELDS OF LIGHT S+99 1 12 NUCLEI AT THE ENERGY REGION EP = 1.0 - 4.1 MEV S+99 1 13 FACILITY (VDG) 5.5-MV TANDEM TN11 ACCELERATOR, INSTITUTE OF S+99 1 14 NUCLEAR PHYSICS, NCSR "DEMOKRITOS", ATHENS, GREECE. S+99 1 15 INC-PART (P) PROTONS. S+99 1 16 TARGETS PELLETS OF POWDER GRAPHITE AND CELLULOSE MIXED WITH S+99 1 17 LESS THAN 10 PERCENT OF A COMPOUND CONTAINING S+99 1 18 PHOSPHORUS. PARTICULAR COMPOUND WAS NOT MENTIONED. S+99 1 19 TARGETS WITH VARIOUS CONCENTRATIONS OF THE ELEMENT S+99 1 20 WERE EXAMINED. THESE WERE ALL STOPPING TARGETS. S+99 1 21 METHOD USED THE PROTON-INDUCED GAMMA-RAY EMISSION (PIGE) S+99 1 22 METHOD. THE PROTON BEAM WAS DIRECTED TO THE TARGET S+99 1 23 VIA TWO SETS OF COLLIMATORS OF DIAMETER 4 MM. THE S+99 1 24 TARGET WAS PLACED AT AN ANGLE OF 45 DEGREES RELATIVE S+99 1 25 TO THE INCIDENT PROTONS. THE TARGET WAS COOLED TO S+99 1 26 A TEMPERATURE OF 10 DEGREES CENTIGRADE USING AN S+99 1 27 ETHYL ALCOHOL REFRIGERATOR IN ORDER TO WITHSTAND S+99 1 28 HIGH BEAM CURRENTS. AN ELECTRICAL POTENTIAL OF 300 S+99 1 29 VOLTS WAS APPLIED TO SUPPRESS SECONDARY EMISSION OF S+99 1 30 ELECTRONS FROM THE TARGET. AN INTRINSIC GE DETECTOR S+99 1 31 WAS PLACED AT AN ANGLE OF 90 DEGREES WITH RESPECT S+99 1 32 TO THE BEAM. THE SOLID ANGLE AND EFFICIENCY OF THIS S+99 1 33 DETECTOR WERE MEASURED USING A 152EU SOURCE OF KNOWN S+99 1 34 STRENGTH. BEAM EXPOSURES WERE SUFFICIENT TO INSURE S+99 1 35 GOOD STATISTICS IN ALL MEASURED SPECTRA. EXCITATION S+99 1 36 FUNCTIONS WERE MEASURED FROM EP = 1.0 - 1.82 MEV IN S+99 1 37 STEPS OF 10 KEV AND FROM EP = 2.2 - 4.1 MEV IN 50- S+99 1 38 KEV STEPS. S+99 1 39 DETECTOR (INGE) INTRINSIC GERMANIUM DETECTOR. RESOLUTION OF S+99 1 40 1.9 KEV FOR 1333 KEV GAMMA-RAYS. S+99 1 41 MONITOR (CI) CURRENT INTEGRATOR. S+99 1 42 CORRECTION DATA WERE CORRECTED FOR DETECTOR EFFICIENCY. GAMMA- S+99 1 43 RAY YIELD VALUES WERE REDUCED TO EQUIVALENT MONO- S+99 1 44 ATOMIC TARGET VALUES USING AVAILABLE STOPPING POWER S+99 1 45 INFORMATION. ULTIMATELY, A SINGLE GAMMA RAY WAS S+99 1 46 SELECTED TO REPRESENT EACH ELEMENT FOR PIGE ANALYSIS. S+99 1 47 ERR-ANALYS NO ERRORS ARE GIVEN. S+99 1 48 ENDBIB 46 S+99 1 49 ENDSUBENT 1 S+99 199999 SUBENT S+99 2 0 S+99 2 1 BIB 2 8 S+99 2 2 REACTION 31P(P,GAMMA)32S S+99 2 3 COMMENTS A CHARACTERISTIC GAMMA-RAY FOR USE IN PIGE ANALYSIS S+99 2 4 WITH PHOSPHORUS IS IDENTIFIED. THE ABSOLUTE YIELD OF S+99 2 5 THIS GAMMA-RAY IS GIVEN. DATA OBTAINED FROM TABLE 1 S+99 2 6 OF THE ORIGINAL PAPER. EG = GAMMA-RAY ENERGY. EP = S+99 2 7 INCIDENT PROTON ENERGY. YLD = ABSOLUTE THICK-TARGET S+99 2 8 GAMMA-RAY YIELD. THE YIELD IS GIVEN IN "UNIT". 1 UNIT S+99 2 9 = 1 COUNT/MICROCOULOMB/STERADIAN. S+99 2 10 ENDBIB 8 S+99 2 11 DATA 3 2 S+99 2 12 EG EP YLD S+99 2 13 KEV MEV UNIT S+99 2 14 2230. 1.77 1700. S+99 2 15 2230. 4.0 100000. S+99 2 16 ENDDATA 4 S+99 2 17 ENDSUBENT 2 S+99 299999 ENDENTRY 2 S+999999999