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FERMILAB E907 (MIPP). FIXED TARGET EXPERIMENT PRIMARY AND SECONDARY BEAM FROM MAIN INJECTOR 120 GEV PROTON PRIMARY BEAM MEASURE HADRONIC PARTICLE PRODUCTION A VARIETY OF TARGETS SPANNING PERIODIC TABLE. PHYSICS TOPICS. TO EXPLORE ACCURACY WITH WHICH GENERAL SCALING LAW IS VALID
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FERMILABE907 (MIPP) FIXED TARGET EXPERIMENT PRIMARY AND SECONDARY BEAM FROM MAIN INJECTOR 120 GEV PROTON PRIMARY BEAM MEASURE HADRONIC PARTICLE PRODUCTION A VARIETY OF TARGETS SPANNING PERIODIC TABLE
PHYSICS TOPICS • TO EXPLORE ACCURACY WITH WHICH GENERAL SCALING LAW IS VALID • TO MEASURE PARTICLE PRODUCTION OFF NUMI TARGETS • TO FOLLOW PROPAGATION OF PARTICLES IN NUCLEI • TO IMPROVE PREDICTIONS OF ATMOSPHERIC NEUTRINO FLUXES • TO IMPROVE HADRONIC SHOWER MODELS IN COLLIDER SIMULATION PROGRAMS
DETECTORS AT E907 • BEAM CHAMBERS • BEAM CHERENKOV • TIME PROJECTION CHAMBER • DRIFT CHAMBERS • TIME OF FLIGHT • RING IMAGING CHERENKOV • MULTIWIRE PROPORTIONAL CHAMBER • ELECTROMAGNETIC CALORIMETER HADRON CALORIMETER
Charged particle Anode wire +HV2 Drift voltage - HV1 Drift region Scintillation counter DRIFT CHAMBERSGENERAL INFORMATION
BEAM AND DRIFT CHAMBERS AT E907 • 3 BEAM CHAMBERS AND 4 DRIFT CHAMBERS • PLANE ORDER G-C-A-C-A-C-A-C-A-C-G ( G=GROUNG, C=CATHODE, A=ANODE) • FOR ELECTRONICS TDC MODULS, 8-CHANNEL PREAMPLIFIERS USED
BEAM CHERENKOV DETECTOR • TWO BEAM CHERENKOV • MIRRORS INSIDE DETECTOR DOWNSTREAM END • INNER AND OUTER PMT’S ARE UPSTREAM AND DOWNSTREAMS ENDS • UPSTREAM CHERENKOV HAS 7 mrad, DOWNSTREAM HAS 5 mrad CHERENKOV ANGLE
CHERENKOV ANGLE θ • COS θ=1/βn (n is index of refraction) • β=v/c
θ vt
RING IMAGING CHERENKOV DETECTORS (RICH) • CYLINDRICAL STEEL TANK, 93” IN DIAMETER, 10.22M IN LENGTH • CO2 INSIDE THE TANK AT ATMOSPHERIC PRESSURE • 16 MIRRORS INSIDE THE TANK DOWNSTREAM END • 2848 PMTs AT UPSTREAM END • FRONT END BOARDS AND VME READOUT CONTROLLER TO READ OUT SIGNALS
TIME PROJECTION CHAMBER • THREE DIMENSIONAL TRACKING DETECTOR WITH INFORMATION ON THR SPECIFIC ENERGY LOSS • ANODE WIRES, ROW CATHODE PADS, DRIFT VELOCITY • VOLUME 2 CUBE METER, IS OPERATED P10 GAS • -10KV CATHODE POTENTIAL, 1300V ANODE POTENTIAL
ELECTRONICS OF TPC • FROND-END STICKS UNDER CHAMBER- AMPLIFY AND DIGITIZE SIGNAL • DC POWER SUPPLY STICKS THROUGH MOLLEX CONNECTOR • VME RECIEVER CARDS CONNECTED TO STICKS BY FIBER OPTIC CABLES
MULTIWIRE PROPORTIONAL CHAMBER • 4 ANODE PLANE ORIENTATIONS • VERTICAL, HORIZONTAL, WITH ANGLES +28.07, -28.07 • ANODE WIRES THIN, PARALLEL, EQUALLY SPACED (3mm) • EACH ANODE PLANE HAS 640 WIRES • CATHODE PLANES OPERATED AT 3100KV
ELECTRONICS OF MWPC • 32 CHANNELED PREAMPLIFIER POWERED WITH 5.2 V • RECEIVING MEMORY HYBRIDS(RMH) MODULES, CRATE ENCODER, SYSTEM ENCODER • 8 RMH CRATE AND 1 CAMAC SYSTEM CRATE
ELECTROMAGNETIC CALORIMETER • MEASURE THE ENERGIES OF ELECTRONS AND PHOTONS • 10 PLANES, EACH HAS A LEAD PLATE, AND 8 CHAMBERS • VERTICAL OR HORIZONTAL PLANE ORIENTATIONS
HADRON CALORIMETER • MEASURES THE ENERGIES OF HADRONIC PARTICLES • 8 READOUT CELLS • ADC READ OUT CURRENT FROM PMT