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Title: A Compton scattering technique to determine wood density and locating defects in it

A Compton scattering technique is presented to determine density and void location in the given wooden samples. The technique uses a well collimated gamma ray beam from {sup 137}Cs along with the NaI(Tl) scintillation detector. First, a linear relationship is established between Compton scattered intensity and known density of chemical compounds, and then density of the wood is determined from this linear relation. In another experiment, the ability of penetration of gamma rays is explored to detect voids in wooden (low Z) sample. The sudden reduction in the Compton scattered intensities agrees well with the position and size of voids in the wooden sample. It is concluded that wood density and the voids of size ∼ 4 mm and more can be detected easily by this method.
Authors:
; ;  [1] ;  [2]
  1. Department of Physics, Punjabi University, Patiala, 147002 (India)
  2. Department of Basic and Applied Sciences, Punjabi University, Patiala, 147002 (India)
Publication Date:
OSTI Identifier:
22488807
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CESIUM 137; COMPTON EFFECT; DEFECTS; DENSITY; GAMMA RADIATION; NAI DETECTORS; VOIDS; WOOD