Difference between revisions of "Scope of Paper"
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# What role does temperature play in the performance of an avalanche photodiode? | # What role does temperature play in the performance of an avalanche photodiode? | ||
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| + | # A semiconductor is a material that conducts electricity in specific circumstances. Therefore, depending on the conditions under which it is operating, it can act as a conductor or an insulator. Conductors are materials with many free electrons and/or holes that allow electrons to freely pass through it. An insulater has it's electrons firmly bound in it therefore does not allow electrons to pass through it. | ||
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| + | # Bias voltage is the voltage it takes to get the diode to start conducting. Below a certain voltage, the diode will no work even in the forward direcction. It is the voltage which allows the electrons and holes to overcome the depleated zone and meet with each other, creating current. | ||
| + | # Reverse Biased means that | ||
Revision as of 17:45, 3 October 2007
The paper will cover the temperature dependence of the SiPM in relation to the dark rate and ability to see peaks. The bias voltage can be kept constant at the nominal value recommended by the manufacturer because I didn't do any testing regarding this aspect of the experiment. The data will be taken from the measurements carried out at UConn during June - July 2007. I will analyze these data and determine the dark rate at each temperature setting, and estimate the uncertainty. These data will be compared to a theoretical model consisting of an electron gas with a single band gap.
Theory of SiPM operation: review questions
- What is a semiconductor? How is it differ from a conductor? from an insulator?
- Sketch a diagram of a semiconductor diode and label the parts. What is meant by the deletion region? Where is the depletion region in a diode?
- What is meant by the term bias voltage in a diode circuit? What does it mean to say that a diode is reverse biased?
- What is diode breakdown and how does it occur? What normally happens when a diode is reverse-biased above the breakdown voltage?
- Describe a way that a reverse-biased diode be connected in a circuit so that it can survive breakdown. What modification to the circuit is required to make the diode produce avalanche pulses?
- What is a photodiode? How does it differ from an ordinary diode?
- What is an avalanche photodiode? How does it differ form an ordinary photodiode?
- What role does temperature play in the performance of an avalanche photodiode?
- A semiconductor is a material that conducts electricity in specific circumstances. Therefore, depending on the conditions under which it is operating, it can act as a conductor or an insulator. Conductors are materials with many free electrons and/or holes that allow electrons to freely pass through it. An insulater has it's electrons firmly bound in it therefore does not allow electrons to pass through it.
- Bias voltage is the voltage it takes to get the diode to start conducting. Below a certain voltage, the diode will no work even in the forward direcction. It is the voltage which allows the electrons and holes to overcome the depleated zone and meet with each other, creating current.
- Reverse Biased means that