Gamma rays have a range of at least 1km in air.However a gamma ray detector placed 0.5m from a gamma ray source detects a noticeably smaller counter-rate as it is moved a few centimeters further away from the sourceExplain this observation

Gamma rays have a range of at least 1km in air.However a gamma ray detector placed 0.5m from a gamma ray source detects a noticeably smaller counter-rate as it is moved a few centimeters further away from the sourceExplain this observation

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter26: Electromagnetism

Section26.1: Interactions Of Electric And Manetic Fields And Matter

Problem 6PP

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Concept explainers

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The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

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Gamma rays have a range of at least 1km in air.
However a gamma ray detector placed 0.5m from a gamma ray source detects a noticeably smaller counter-rate as it is moved a few centimeters further away from the source

Explain this observation

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