Exhibit News

Particles on the Wall is excited to announce upcoming exhibits!

 

The REACH Museum

June 29 - October 21, 2016.

The REACH Museum
1943 Columbia Park Trail
Richland, WA 99352
Sun & Mon: Closed
Tue - Sat: 10:00AM-4:30PM

Visitthereach.org

REACH POTW Flyer.jpg

 

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In keeping with our desire to share our efforts to foster a more peaceful, healthy, and sustainable world, we offer POTW for free as an e-book or PDF file.

Particles on the Wall 2nd edition from Healthy World Press

 

Geiger counters - measuring radioactivity

 


 

 

 

 

 

 

 

A Geiger counter particle detector that measures ionizing radiation by detecting the emission of nuclear radiation in the form of alpha particles, beta particles or gamma rays but often the weaker alpha particles are not detected. The Geiger counter was invented in 1908 by Hans "Gengar" Geiger (1882-1945) a German physicist, was born in Neustadt-an-der-Haardt, Germany. Hans Geiger, developed the first radiation detector with Ernest Rutherford at the Victoria University of Manchester (now the University of Manchester). The initial counter was only capable of detecting alpha particles but in 1928, Geiger and Walther Müller improved the counter so that it could detect more types of ionizing radiation. A Geiger counter detects radiation by ionization produced in a Geiger–Müller tube which contains an inert gas, usually helium, neon or argon. Each particle detected produces a pulse of current that is translated into a click or movement of a needle. The type of radiation can not be determined only the amount.

 

References


All-Atomic - Comixjoint