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Showing 1 to 6 of 6 for “"prompt gamma rays"”.
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Elemental analysis by alpha-induced prompt gamma-ray spectrometry
Alpha-induced prompt gamma-rays generated by excitation, or in nuclear reactions, were studied for 57 elements, to select those elements having gamma-rays of sufficient intensity for analytical application. Several light, medium and heavy elements show promise. Of these nitrogen, fluorine, …
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Analytical application of proton-induced prompt photon specrometry
Prompt gamma-rays emitted tinder bombardment with 3.5 to 6.0MeV protons from the 77 stable non-gaseous elements were evaluated for analytical application. The compilation included the yields of about 2200 gamma-rays and their detection limit for analysis. Because the data were measured under …
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Assessment of the use of prompt gamma emission for proton therapy range verification
PURPOSE: Prompt gamma rays emitted from proton-nucleus interactions in tissue present a promising non-invasive, in situ means of monitoring proton beam based radiotherapy. This study investigates the fluence and energy distribution of prompt gamma rays emitted during proton irradiation of phantoms. …
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Measuring cross-section data for prompt gammas emitted during proton-nucleus collisions
… measurement. The detection of secondary prompt gamma rays have been proposed as an in-situ method to determine the proton range since the location of the prompt gamma emission is strongly correlated with the proton depth dose profile. This correlation has been confirmed in both …
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In vivo detection of gadolinium by prompt gamma neutron activation analysis: An investigation of the potential toxicity of gadolinium-based contrast agents used in MRI
… <em>in vivo</em> gadolinium (Gd) content by prompt gamma neutron activation analysis (PGNAA). PGNAA is a quantitative measurement technique that is completely non-invasive. Gadolinium has the highest thermal neutron capture cross section of all the stable elements. Gadolinium-based contrast …
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A new prompt gamma spectroscopy-based approach for range verification in proton therapy
… biological washout, and the background due to prompt radiation originated from other reaction channels. These issues have been partly resolved by the use of in-beam PET scanners, which measure annihilation photons during the treatment. One of the most advanced versions is the INSIDE (INnovative …