scholarly journals TECHNICAL BASIS DOCUMENT OF MARSSIM FIELD CALIBRATION FOR QUANTIFICATION OF CS-137 VOLUMETRICALLY CONTAMINTED SOILS IN THE BC CONTROLLED AREA USING A 4 BY 4 BY 16 INCH SODIUM IODIDE DETECTOR

2007 ◽  
Author(s):  
PAPPIN JL
Keyword(s):  
Sodium Iodide ◽  
Field Calibration ◽  
Sodium Iodide Detector ◽  
Technical Basis

Lung Cancer Detection Using a Miniature Sodium Iodide Detector and Cobalt-57 Bleomycin

CHEST Journal ◽  
1984 ◽  
Vol 85 (1) ◽  
pp. 84-88 ◽  
Author(s):  
James M. Woolfenden ◽  
William S. Nevin ◽  
H. Bradford Barber ◽  
Douglas J. Donahue
Keyword(s):  
Lung Cancer ◽  
Cancer Detection ◽  
Sodium Iodide ◽  
Sodium Iodide Detector ◽  
Lung Cancer Detection

scholarly journals Calibration of the Absolute Efficiency of Well-Type NaI(Tl) Scintillation Detector in 0.121–1.408 MeV Energy Range

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Dalal Al Oraini
Keyword(s):  
Energy Range ◽  
Sodium Iodide ◽  
Detection Efficiency ◽  
Solid Angle ◽  
Radioactive Isotopes ◽  
Activity Measurements ◽  
Absolute Efficiency ◽  
Sodium Iodide Detector ◽  
The Absolute ◽  
Detector Material

Well-type NaI(Tl) detectors are beneficial for low-level photon activity measurements because of the near 4π solid angle that can be gained with them. The detection efficiency can differ with the source-to-detector system geometries, the absorption of the photon in the detector material, and attenuation layers in front of the detector face. For these purposes, the absolute efficiency and the coincidence corrections of the well-type sodium iodide detector have been measured at 0.121–1.408 MeV energy range (obtained from 152Eu, 137Cs, and 60Co radioactive isotopes). The covenant between the experimental (present work) and the published theoretical values is good, with the high discrepancies being less than 1%.

Utilizing multi-channel airborne gamma-ray spectra

1981 ◽  
Vol 18 (12) ◽  
pp. 1793-1801 ◽  
Author(s):  
B. H. Dickson ◽  
R. C. Bailey ◽  
R. L. Grasty
Keyword(s):  
Gamma Radiation ◽  
Sodium Iodide ◽  
Gamma Ray ◽  
Experimental Studies ◽  
Basic Information ◽  
Detector Distance ◽  
Spectral Components ◽  
Absorbing Material ◽  
Sodium Iodide Detector ◽  
Source Concentration

Experimental studies using a large-volume sodium iodide detector system show how the potassium, uranium, and thorium gamma-ray spectra vary with altitude above the ground. The shapes of the spectra were derived from measurements on large radioactive concrete calibration slabs using plywood sheets to simulate the absorption of the gamma radiation in the air. A mathematical analysis of the data showed that within the range covered by the experiment (0–112 m of air) the spectra of each of the three radioelements are made up essentially of two spectral components, whose proportions vary with the amount of absorbing material between the source and the detector. With this knowledge, it is shown how all the basic information relating to source–detector distance and source concentration may be extracted from the airborne gamma-ray spectrum.

DuMond Spectroscopy: A Technique for the Determination of Bone Density

1993 ◽  
Vol 06 (04) ◽  
pp. 194-197
Author(s):  
K. MacKenzie ◽  
H. Dobson
Keyword(s):  
Bone Mineral Density ◽  
Bone Density ◽  
Energy Distribution ◽  
Sodium Iodide ◽  
Repeated Measurements ◽  
Mineral Density ◽  
R Value ◽  
Sodium Iodide Detector ◽  
A New Technique

DuMond spectroscopy is a new technique for the determination of bone mineral density. The instrument consists of an Americium-241 source mounted in an absorber post located on the surface of a sodium iodide detector. The analysis is based on the energy distribution of photons scattered by the tissue. Measurements made using a series of powdered bovine cortical bone and wax mixtures gave an R value of 0.991. Repeated measurements made on a series of calcaneus specimens gave a precision of 0.96%.

A COMPILATION OF GAMMA-RAY SPECTRA (SODIUM IODIDE DETECTOR)

1970 ◽  
pp. 323-467
Author(s):  
C.E. CROUTHAMEL ◽  
C. GATROUSIS ◽  
S.J. GOSLOVICH ◽  
R. DAMS ◽  
F. ADAMS
Keyword(s):  
Sodium Iodide ◽  
Gamma Ray ◽  
Sodium Iodide Detector

Improved dark matter limits from pulse shape discrimination in a low background sodium iodide detector at the Boulby mine

1996 ◽  
Vol 379 (1-4) ◽  
pp. 299-308 ◽  
Author(s):  
P.F. Smith ◽  
G.T.J. Arnison ◽  
G.J. Homer ◽  
J.D. Lewin ◽  
G.J. Alner ◽  
...  
Keyword(s):  
Dark Matter ◽  
Pulse Shape ◽  
Sodium Iodide ◽  
Pulse Shape Discrimination ◽  
Shape Discrimination ◽  
Low Background ◽  
Sodium Iodide Detector

scholarly journals Benchmark Gamma Spectroscopy Measurements of Uranium Hexafluoride in Aluminmum Pipe with a Sodium Iodide Detector

2010 ◽  
Author(s):  
Jose A March-Leuba ◽  
Taner Uckan ◽  
John E Gunning ◽  
Patrick D Brukiewa ◽  
Belle R Upadhyaya ◽  
...  
Keyword(s):  
Sodium Iodide ◽  
Gamma Spectroscopy ◽  
Uranium Hexafluoride ◽  
Sodium Iodide Detector
Sign in / Sign up

Export Citation Format

Share Document