sipm research development
Download
Skip this Video
Download Presentation
SiPM Research & Development

Loading in 2 Seconds...

play fullscreen
1 / 22

SiPM Research & Development - PowerPoint PPT Presentation


  • 159 Views
  • Uploaded on

SiPM Research & Development. Teacher: Mark Kirzeder Student: Emily Lohr Advisors: Dr. Randi Ruchti Mr. Barry Bambaugh. What is a SiPM?. Sil icon P hoto M ultiplier A new generation of detection system. An alternative to traditional PMTs. SiPMs vs. PMTs. Relatively Large

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' SiPM Research & Development' - zinnia


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
sipm research development

SiPM Research & Development

Teacher: Mark Kirzeder

Student: Emily Lohr

Advisors: Dr. Randi Ruchti

Mr. Barry Bambaugh

what is a sipm
What is a SiPM?
  • Silicon Photo Multiplier
  • A new generation of detection system.
    • An alternative to traditional PMTs.
sipms vs pmts
SiPMs vs. PMTs
  • Relatively Large
  • High voltage
  • Expensive
  • Non-recoverable
  • Inconsistent signals
  • Affected by B fields
  • Not as precise
  • Slower response time
  • Small
  • Low voltage
  • Relatively low cost
  • Recoverability
  • Signal consistency
  • Unaffected by B field
  • Single photon counting ability
  • Fast response time
sipm signals
SiPM Signals
  • Individual photon counting ability
  • Active area
  • Inactive area
sipm drawbacks
SiPM Drawbacks
  • Optical cross talk
    • A signal from one pixel generates a signal in an adjacent pixel
  • High rates of noise
objectives
Objectives
  • Quantify SiPM performance with respect to
    • Manufacturer: Sensl vs. Hamamatsu
    • Number of pixels (active area)
    • Size: 1mm (square) vs. 3mm (square)
    • Bias Voltage
    • Temperature
  • Determine best configuration for SiPM operation
experimental devices
Experimental Devices

Hamamatsu device with electronics for controlling bias voltage

Sensl device with electronics for cooling and controlling bias voltage

experimental devices1
Experimental Devices
  • Sensl – Major Focus
    • 1mm x 1mm square
      • 35 micron x 35 micron square pixels
    • 3mm x 3mm square
      • 35 micron x 35 micron square pixels
  • Hamamatsu – Minor Focus
    • 1mm x 1mm square
      • 25 micron x 25 micron (1600 total pixels)
      • 50 micron x 50 micron (400 total pixels)
experimental set up1
Experimental Set Up
  • SiPM Location
  • Light Splitter
    • For future use when operating 2 SiPMs simultaneously
  • LED
    • Red
    • Pulsed at 50 kcps
noise study methods
Noise Study - Methods
  • SiPM turned on in the box without the LED
  • A counter was used to determine number of events that were above a given threshold
  • Temperatures were tested from +25 oC to -30 oC
  • Bias voltages were tested from 29.5V 31.5V
noise temp study sensl results
Noise & Temp Study – Sensl Results

Red = 29.5V, Orange = 30.0V, Yellow = 30.5V, Green = 31.0V, and Purple = 31.5V

noise bias study sensl results
Noise & Bias Study – Sensl Results

Red = +25C, Orange = +20C, Yellow = +10C, Green = 0C, L. Blue = -20C, D. Blue = -25C, and Purple = -30C

noise bias study hamamatsu results
Noise & Bias Study – Hamamatsu Results

Red = Ham Electronics, Yellow = 30ns gate,

Green = 100ns Gate and Blue = 100ns Gate

conclusions
Conclusions
  • 3mm Sensl Device
    • Noise was minimized at -20 oC
    • A bias of 30.0 V allows for greatest reduction of noise at -20 oC
  • 1mm Sensl Device
    • Noise continued to decrease slightly at -25 oC and -30 oC, although it seems to plateau
    • A bias of 29.5 V allows for greatest reduction of noise at -30 oC
signal quality study methods
Signal Quality Study - Methods
  • LED was used as the trigger
  • Signals were read into a QVT from the SiPM
  • Data was then analyzed using a program developed by Barry Bambaugh according to a Poisson Distribution
    • Identified number of events
    • Calculated the mean number of photons, peak separation, and number of peaks.
signal quality study methods1
Signal Quality Study - Methods
  • A desirable signal is one that has
    • Large average number of photons
    • Large peak separation
    • Large number of peaks
    • Low amount of noise
signal quality study results average number of photons
Signal Quality Study – Results:Average Number of Photons

Red = +25C, Orange = +20C, Yellow = +10C, Green = 0C, L. Blue = -10C, D. Blue = -20C, L. Purple = -25C, and D. Purple = -30C

signal quality study results average number of photons1
Signal Quality Study – Results:Average Number of Photons

Red = 29.5V, Orange = 30.0V, Yellow= 30.5V, Green = 31.0V, and Blue = 31.5V

conclusions1
Conclusions
  • 3mm Sensl Device
    • Little difference in photon detection (+/- 0.2) efficiency at all temperatures at 30.0V
    • Peak separation increases with increased bias
  • 1mm Sensl Device
    • Most photons detected at -10 oC
    • Peak separation increases with increased bias
future work
Future Work
  • Exact operational conditions will depend on the application of the SiPM
    • Noise can be reduce drastically with temp
    • Efficiency can be increased with bias
      • Bias does affect noise
  • Operate two SiPMs simultaneously to verify that the LED is unchanged
  • Experiment with the Hamamatsu devices more thoroughly
ad