C3Subtitles: rc3: Measuring radioactivity using low-cost silicon sensors
back

Measuring radioactivity using low-cost silicon sensors

A DIY particle physics detector in a tin box.

If you suspend your transcription on amara.org, please add a timestamp below to indicate how far you progressed! This will help others to resume your work!

Please do not press “publish” on amara.org to save your progress, use “save draft” instead. Only press “publish” when you're done with quality control.

Video duration
00:42:13
Language
English
Abstract
This talk gives a brief introduction to natural radioactivity and shows how a detector can be built from simple photodiodes. The electronics are easy to solder for beginners and provide a hands-on opportunity for entering the exciting world of modern particle physics with a practical DIY and citizen science approach.

Natural radioactivity surrounds us everywhere and is composed of different kinds of ionising radiation or subatomic particles. This talk presents a DIY particle detector based on low-cost silicon photodiodes and its relations to modern detectors like the ones developed at CERN.

The project is open hardware, easy to solder for beginners, and intended for citizen science & educational purposes. In contrast to simpler Geiger-Müller counters, this detector measures the energy of impinging particles and can distinguish in particular between alpha particles and electrons from beta decays. A cheap USB sound card or smartphone headset connection can be employed for recording the signals. Corresponding data analysis scripts written in python and related tools from particle physics research will be briefly discussed.

An introduction about terrestrial and cosmic sources of radioactivity will be given together with details on the interaction of ionising radiation in silicon. I will conclude with a discussion of interesting every-day objects that are worthwhile targets for investigation and show example measurements of characteristic alpha particle energy spectra - without using expensive vacuum equipment.

Talk ID
11546
Event:
rc3
Day
3
Room
rC2
Start
2 p.m.
Duration
00:40:00
Track
Hardware & Making
Type of
lecture
Speaker
Oliver Keller
Talk Slug & media link
rc3-11546-measuring_radioactivity_using_low-cost_silicon_sensors

Talk & Speaker speed statistics

Very rough underestimation:
140.5 wpm
781.8 spm
100.0% Checking done100.0%
0.0% Syncing done0.0%
0.0% Transcribing done0.0%
0.0% Nothing done yet0.0%
  

Talk & Speaker speed statistics with word clouds

Whole talk:
140.5 wpm
781.8 spm