Table of Contents
What is Hans Geiger known for?
Geiger counter
Geiger-Marsden experimentsGeiger–Müller tubeGeiger–Nuttall lawAtomic nucleus
Hans Geiger/Known for
How did Geiger invent the Geiger counter?
Working with one of Rutherford’s undergraduates, Ernest Marsden, Geiger came up with an ingenious device that fired alpha particles through gold foil onto a screen, where they could be detected as scintillations.
Why was the Geiger counter created?
In 1908, hoping to reduce the time, strain and imprecision involved in the work, Geiger built a device that automatically counted individual particles. This early form of what became known as the Geiger counter detected only alpha particles.
What did Geiger and Marsden discover?
The Geiger–Marsden experiments (also called the Rutherford gold foil experiment) were a landmark series of experiments by which scientists learned that every atom has a nucleus where all of its positive charge and most of its mass is concentrated.
Where is Hans Geiger from?
Neustadt, Germany
Hans Geiger/Place of birth
What did Hans Geiger discover?
The German physicist Hans Wilhelm Geiger is best known as the inventor of the Geiger counter to measure radiation. In 1908, Geiger introduced the first successful detector of individual alpha particles. Later versions of this counter were able to count beta particles and other ionizing radiation.
What is the meaning of Geiger?
: an instrument for detecting the presence of cosmic rays or radioactive substances. Geiger counter. noun.
When did Geiger and Marsden discover the atom?
1909
This model was tested by the scientists Geiger and Marsden in 1909. They set up a very thin layer of gold foil and fired alpha particles – radioactive particles with a positive charge – at the gold.
How did Hans Geiger contribute to the atomic theory?
In 1908, Geiger introduced the first successful detector of individual alpha particles. In 1908, Rutherford and Geiger devised a counter for alpha particles, work that led to Rutherford’s nuclear theory of the atom, for which he won the 1908 Nobel Prize in chemistry.