{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

286 radiation lab - various sources and in different ways...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
John Karlen Lab Partner: Greg Physics 286 Experiment 1: Radioactivity 2/14/10 I Introduction : The purpose of the lab is to study different kinds of radiation and their affect on different kinds of matter. We employ a Geiger Mueller tube, which consists of a tube with a window, through which the radiation is shot. A wire at a potential of several hundred volts above the tube, is suspended within the tube. When a radiation particle ionizes the low pressure gas in the tube, it creates an avalanche of electrons and positive ions, which create a current pulse. The pulse is registered as a count. The Geiger Mueller tube gives tells us how much radiation enters its tube, allowing us to analyze the radiation from
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: various sources and in different ways. II Analysis : Part A: Trial 1 Trial 2 Trial 3 Mean 665 691 664 Standard Deviation 25 24 19 Standard Error of the Mean 3.54 3.39 2.69 # of measurements between μ-σ and μ+σ 36 36 37 Analysis:-Trial 1 and 3 agree within their errors (665±3.39 is within 664±2.69), but the Trial 1 and 3 means are more than 7 errors away from the Trial 2 mean. -Trial 1: (μ)^(.5) = 25.8 this value is very close to σ = 25-Trial 2: (μ)^(.5) = 26.3 this value is very close to σ = 24-Trial 3: (μ)^(.5) = 25.8 this value is somewhat close to σ = 19-...
View Full Document

{[ snackBarMessage ]}