34 research outputs found
Experimental Facilities Development
This research was sponsored by the National Science Foundation Grant NSF PHy 87-1440
Measurement of negative particle multiplicity in S - Pb collisions at 200 GeV/c per nucleon with the NA36 TPC
A high statistics study of the negative multiplicity distribution from S-Pb collisions at 200 GeV/c per nucleon is presented. The NA36 TPC was used to detect charged particles; corrections are based upon the maximum entropy method.A high statistics study of the negative multiplicity distribution from S-Pb collisions at 200 GeV/c per nucleon is presented. The NA36 TPC was used to detect charged particles; corrections are based upon the maximum entropy method.A high statistics study of the negative particle multiplicity distribution from S–Pb collisions at 200 GeV/ c per nucleon is presented. The NA36 TPC was used to detect charged particles; corrections are based upon the maximum entropy method
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BRAGG CURVE SPECTROSCOPY
An alternative utilization is presented for the gaseous ionization chamber in the detection of energetic heavy ions, which is called Bragg Curve Spectroscopy (BCS). Conceptually, BCS involves using the maximum data available from the Bragg curve of the stopping heavy ion (HI) for purposes of identifying the particle and measuring its energy. A detector has been designed that measures the Bragg curve with high precision. From the Bragg curve the range from the length of the track, the total energy from the integral of the specific ionization over the track, the dE/dx from the specific ionization at the beginning of the track, and the Bragg peak from the maximum of the specific ionization of the HI are determined. This last signal measures the atomic number, Z, of the HI unambiguously
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FREE-ION YIELD IN LIQUID ARGON INDUCED BY 241 Am-a IRRADIATION
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Energy resolution considerations in liquid ionization chambers
If the calculated Fano factors are correct, then the resolution of a LAr or LXe detector is limited by electronics and geometry, and not necessarily by the physics of the liquids. While this presents some challenging experimental difficulties, it is thought that it is much better for the limitations to be as they are since they may be solvable
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