Difference between revisions of "Jie's Abstract"

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== Abstract ==
 
== Abstract ==
  
Temperature could be a important factor in determining the suitability of the new solid state photon detectors in replacing the older photomultiplier tubes in the GlueX particle physics Lab. This experiment tests the dark rate and the signal strenght of the SSPM - 0606BG4MM - PCB SiPM (Silicon Photomultiplier) to find out the range of the temepratures that it could funtion at and find its optimal operating temeprature. Photons from a blue-green LED were filtered and the signalwas picked up by the detector. The temperature was then adjusted to test the ability of the SiPM to funtion under different circumstances. The resutling data was then deconvoluted and it can be determind that..... _______________Conclusion_______________ .
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The kinetic theory explains temperature as the collective effect of the motion of many particles. Usually these collective effects are only observed as the average behavior of millions of billions of particles, which all share a common pool of energy. Each particle can have a random amount of energy from the pool, but one particle that uses a lot of energy, would leave less energy for the rest of the particles. Therefore, the energy distribution in thermal equilibrium at temperature T is an exponential distribution. This means that very few particles have a large amount of kinetic energy, but no matter how high the energy or how low the temperature, the population is never quite zero. This experiment has been carried out using a novel detector comprised of a large array of silicon avalanche photodiodes known as a silicon photomultiplier (SiPM). It stores a large amount of energy and releases it if there is a slight disturbance. From time to time, an electron would have enough energy to set off the silicon photomultiplier from the randomness of the thermal energy distribution. This mechanism reacts to the energy of a single electron, allowing us to detect the thermal energies of a single particle.  
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Latest revision as of 19:57, 31 January 2008

Abstract

The kinetic theory explains temperature as the collective effect of the motion of many particles. Usually these collective effects are only observed as the average behavior of millions of billions of particles, which all share a common pool of energy. Each particle can have a random amount of energy from the pool, but one particle that uses a lot of energy, would leave less energy for the rest of the particles. Therefore, the energy distribution in thermal equilibrium at temperature T is an exponential distribution. This means that very few particles have a large amount of kinetic energy, but no matter how high the energy or how low the temperature, the population is never quite zero. This experiment has been carried out using a novel detector comprised of a large array of silicon avalanche photodiodes known as a silicon photomultiplier (SiPM). It stores a large amount of energy and releases it if there is a slight disturbance. From time to time, an electron would have enough energy to set off the silicon photomultiplier from the randomness of the thermal energy distribution. This mechanism reacts to the energy of a single electron, allowing us to detect the thermal energies of a single particle.

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