Mystery RADIOACTIVE Source | Can we identify it?

How do you identify an unknown, radioactive element using affordable tools? I am faced with this challenge from an unlabeled radioactive source. It is radioactive, but what makes it radioactive? In this video, I use a range of tests in an attempt to identify the radioisotope. Including paper, magnets and a gamma spectrometer. Will I figure it out or will the source remain a mystery? Radiacode 103 dosimeter and gamma spectrometer donated by Radiacode.com: https://103.radiacode.com/ They have a YouTube-channel too, including a video of their new manufacturing lab in Cyprus: https://www.youtube.com/watch?v=n7EVYZ0Mf54 My Patreon-page: https://www.patreon.com/Brainiac75 Links to other of my related videos: Mushrooms and Radiacode 101: https://youtu.be/x1UZdLVlBXg SD Card vs. Radioactivity | Data Loss?: https://youtu.be/vx-lcFD3-BE Monster magnet meets monitors (featuring Left Hand Rule): https://youtu.be/pu0pIq-ziEA Did you miss one of my videos?: https://www.youtube.com/user/brainiac75/videos FULL MUSIC CREDITS Time codes: 0:01 + 12:40 "Darkness is Coming" Kevin MacLeod (incompetech.com) ISRC: USUAN1100584 Intro part looped by me. Time codes: 0:54 + 8:17 "Perspectives" Kevin MacLeod (incompetech.com) ISRC: USUAN1300027 Time code: 4:45 "Hiding Your Reality" Kevin MacLeod (incompetech.com) ISRC: USUAN1700081 Time codes: 6:12 + 11:49 "Energizing" Kevin MacLeod (incompetech.com) ISRC: USUAN1900040 Time code: 9:02 "Lightless Dawn" Kevin MacLeod (incompetech.com) ISRC: USUAN1100655 Time code: 11:18 "Ossuary 6 - Air" by Kevin MacLeod (incompetech.com) ISRC: USUAN1500048 Time code: 14:06 "Ossuary 6 - Air" by Kevin MacLeod (incompetech.com) Part from 2:34 in the music track. ISRC: USUAN1500048 All music above licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ Time code: 8:36 Mix of two tracks: 1) The Shimmering by fran_ky (freesound.org/s/237363) Licensed under Creative Commons 0 license 2) "Spacial Harvest" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/ ISRC: USUAN1100653 #radioactive #radiacode #geiger