Academic literature on the topic 'Gamma rays'

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Journal articles on the topic "Gamma rays"

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Musser, George. "Gamma Rays." Scientific American 301, no. 3 (2009): 94. http://dx.doi.org/10.1038/scientificamerican0909-94b.

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Sun, Y. K., H. T. Jing, B. B. Tian, X. L. Gao, and X. Y. Yang. "Research on proton beam spot imaging based on pixelated gamma detector." Journal of Instrumentation 17, no. 02 (2022): P02033. http://dx.doi.org/10.1088/1748-0221/17/02/p02033.

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Abstract The secondary particles from the spallation target of the China Spallation Neutron Source are mainly gammas and neutrons, which are related to the incident proton. The reconstruction of the proton beam spot could be implemented based on the distribution of the positions of secondary gammas or neutrons. The methods of pinhole imaging and Compton imaging are developed by measuring the position distribution of gammas based on the pixelated detector. The secondary gammas could be detected by the pixelated gamma detector directly. The neutron can be identified by detecting the characterist
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Chi, X., and A. W. Wolfendale. "Extragalactic gamma rays." Journal of Physics G: Nuclear and Particle Physics 15, no. 9 (1989): 1509–18. http://dx.doi.org/10.1088/0954-3899/15/9/019.

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Zarifmahmoudi, Leili, and Ramin Sadeghi. "Scattered gamma rays." Nuclear Medicine Communications 36, no. 7 (2015): 755–56. http://dx.doi.org/10.1097/mnm.0000000000000324.

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Danilyan, G. V., J. Klenke, V. A. Krakhotin, et al. "Scission gamma rays." Physics of Atomic Nuclei 72, no. 11 (2009): 1812–17. http://dx.doi.org/10.1134/s1063778809110027.

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May, M. "Hypernuclear gamma rays." Nuclear Physics A 450 (March 1986): 179–88. http://dx.doi.org/10.1016/0375-9474(86)90552-x.

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Kasztelan, M., K. Jȩdrzejczak, and J. Szabelski. "Comparison of MC Geant4 simulation with the measurements of gamma photons produced by neutrons." Modern Physics Letters A 34, no. 06 (2019): 1950046. http://dx.doi.org/10.1142/s0217732319500469.

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In this work, we have focused on results of measurements of the hydrogen line 2223 keV and compared them with the results of Geant4 simulations. The paraffin containing hydrogen was irradiated by neutrons produced by the weak AmBe source. Produced gammas were measured with the germanium detector. The experimental setup was placed inside a carbon chamber which provided the shielding from the external neutrons. The measurements were performed for different amounts of paraffin. The processes playing a role in the description of our measurements are transport and moderation of neutrons, production
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Koshikawa, N., A. Omata, M. Masubuchi, et al. "Activation imaging of drugs with hybrid Compton camera: A proof-of-concept study." Applied Physics Letters 121, no. 19 (2022): 193701. http://dx.doi.org/10.1063/5.0116570.

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The visualization of drugs is essential for cancer treatment. Although several methods for visualizing drugs have been proposed, a versatile method that can be easily applied to various drugs has not yet been established. Therefore, we propose “activation imaging,” in which a drug is irradiated with thermal neutrons and becomes radioactive, enabling visualization using emitted x rays and/or gamma rays. Activation imaging does not require the conjugation of specific tracers with drugs. Therefore, it can be easily applied to a variety of drugs, drug carriers (e.g., metal nanoparticles), and cont
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López, J. A., S. S. Romero González, O. Hernández Rodríguez, J. Holmes, and R. Alarcon. "GEANT4 Study of Proton–Body Interactions." Journal of Nuclear Physics, Material Sciences, Radiation and Applications 8, no. 2 (2021): 121–27. http://dx.doi.org/10.15415/jnp.2021.82015.

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Proton therapy uses a beam of protons to destroy cancer cells. A problem of the method is the determination of what part of the body the protons are hitting during the irradiation. In a previous study we determine that by capturing the gamma rays produced during the irradiation one can determine the location of the proton-body interaction, in this work we investigate if by examining the gamma rays produced it is possible to determine the body part that produced the gamma rays by the proton collision. This study uses GEANT4 computer simulations of interactions of proton-tissue, protonbrain, pro
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Zuo, Yinghong, Maoyu Zhang, Guoxin Cheng, and Shengli Niu. "Study on Induced Current of Iron Plate Irradiated by Pulsed Gamma Rays." E3S Web of Conferences 53 (2018): 01007. http://dx.doi.org/10.1051/e3sconf/20185301007.

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To obtain the transient current response law of the metal component irradiated by pulsed gamma rays, the pulsed gamma ray irradiation experiment of the iron plate was carried out on “Qiangguang-I” accelerator. The transient current of iron plate generated by pulsed gamma rays was measured and analysed, and the relationship between the amplitude of pulse current and the dose rate of gamma rays was obtained. The results show that the current response sensitivity of the iron plate is about 5.7×10-7(A/m2)/(Gy/s) when the gamma rays with the energy of 0.8 MeV irradiate the iron plate. The charge de
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Dissertations / Theses on the topic "Gamma rays"

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Richardson, K. M. "Gamma rays, cosmic rays and local molecular clouds." Thesis, Durham University, 1988. http://etheses.dur.ac.uk/942/.

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battersby, Stephen Joseph Richard. "Gamma-rays and active galaxies." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336471.

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Latham, Ian James. "V.H.E. gamma rays from microquasars." Thesis, Durham University, 2006. http://etheses.dur.ac.uk/2946/.

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This thesis is concerned with the detection of very high energy (VHE) 7-rays from microquasars, a recently discovered subclass of x-ray binaries that display jets of relativistic particles. A general introduction to ground based 7-ray astronomy is presented, which discusses the production of Cherenkov radiation and how VHE 7-rays are detected via extended air showers in the atmosphere. The important processes involved in the production and absorption of 7-rays are detailed, before the design of The High Energy Stereoscopic System (H.E.S.S.) Phase I telescope array, based in Namibia, is briefly
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吳文謙 and Man-him Ng. "Searching for gamma-ray signals form pulsars and periodic signals fromthe galactic gamma-ray sources." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31213509.

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Ng, Man-him. "Searching for gamma-ray signals form pulsars and periodic signals from the galactic gamma-ray sources /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19667942.

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余君岳 and Kwan-ngok Peter Yu. "The origin of extragalactic gamma rays." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B31231469.

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Kirkman, Ian W. "VHE gamma rays from celestial objects." Thesis, Durham University, 1985. http://etheses.dur.ac.uk/7850/.

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This Thesis describes and discusses the results obtained from observations of the astronomical objects Cygnus X-3 and the Crab Pulsar, made during 1981 and 1982 using the Very High Energy (VHE) Gamma Ray Astronomy Facility of the University of Durham. Following an introductory chapter, chapter two describes the observational technique used for the work (known as the 'Atmospheric Cerenkov Technique') and chapter three describes in some detail the design, construction and operation of the equipment. Chapter four summarises the data taken during the course of the observations, whilst chapter five
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Abdelrahman, Y. S. "Prompt gamma-rays from fission fragments." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234192.

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Yu, Kwan-ngok Peter. "The origin of extragalactic gamma rays /." [Hong Kong : University of Hong Kong], 1988. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12362827.

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Gabici, Stefano. "Gamma ray astronomy and the origin of galactic cosmic rays." Habilitation à diriger des recherches, Université Paris-Diderot - Paris VII, 2011. http://tel.archives-ouvertes.fr/tel-00719791.

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Diffusive shock acceleration operating at expanding supernova remnant shells is by far the most popular model for the origin of galactic cosmic rays. Despite the general consensus received by the model, an unambiguous and conclusive proof of the supernova remnant hypothesis is still missing. In this context, the recent developments in gamma ray astronomy provide us with precious insights into the problem of the origin of galactic cosmic rays, since production of gamma rays is expected both during the acceleration of cosmic rays at supernova remnant shocks and during their subsequent propagatio
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Books on the topic "Gamma rays"

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M, Herman, Nichols A. L, and International Atomic Energy Agency, eds. Update of X ray and gamma ray decay data standards for detector calibration and other applications. International Atomic Energy Agency, 2007.

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Schönfelder, Volker, ed. The Universe in Gamma Rays. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04593-0.

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V, Schönfelder, ed. The universe in gamma rays. Springer, 2001.

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Murthy, P. V. Ramana. Gamma-ray astronomy. 2nd ed. Cambridge University Press, 1993.

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1954-, Ho Cheng, Epstein Richard I, Fenimore Edward E, and Los Alamos Workshop on Gamma-Ray Bursts (1990 : Taos, N.M.), eds. Gamma-ray bursts: Observations, analyses and theories : proceedings of the Los Alamos Workshop on Gamma-Ray Bursts, Taos, New Mexico, July 29-August 3, 1990. Cambridge University Press, 1992.

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Canada. Atomic Energy Control Board., ed. Industrial gamma radiography. Atomic Energy Control Board, 1989.

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Canada. Atomic Energy Control Board., ed. Industrial gamma radiography. Atomic Energy Control Board, 1989.

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Vorobʹev, V. A. Gamma-plotnometrii͡a︡. Ėnergoatomizdat, 1989.

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Michelson, Peter. Final report to the National Aeronautics and Space Administration for celestial gamma ray study ... for the period June 1, 1991-August 31, 1995. W.W. Hansen Experimental Physics Laboratory, Stanford University, 1995.

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United States. National Aeronautics and Space Administration, ed. The Gamma-Ray Observatory. National Aeronautics and Space Administration, 1990.

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Book chapters on the topic "Gamma rays"

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Stinnett, J., P. J. Karpius, D. J. Mercer, T. D. Reilly, and D. T. Vo. "The Origin of Gamma Rays." In Nondestructive Assay of Nuclear Materials for Safeguards and Security. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58277-6_2.

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AbstractThis chapter presents the production mechanism for gamma rays and X rays that are important in nondestructive assay measurements of nuclear materials. Characteristics of nuclear decay processes that produce gamma rays are presented. Typical gamma ray spectra from nuclear materials are shown along with gamma ray product reactions.
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Nakagawa, Kazumichi. "Gamma Rays." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_618-5.

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Nakagawa, Kazumichi. "Gamma Rays." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_618.

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Nakagawa, K. "Gamma Rays." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_618.

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Nakagawa, Kazumichi. "Gamma Rays." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_618.

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Nakagawa, Kazumichi. "Gamma Rays." In Encyclopedia of Astrobiology. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-642-27833-4_618-6.

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Karpius, P. J., and T. D. Reilly. "Gamma-Ray Interactions with Matter." In Nondestructive Assay of Nuclear Materials for Safeguards and Security. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58277-6_3.

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AbstractThis chapter describes the interactions that gamma-rays have with matter. The key interaction mechanisms described include the photoelectric effect, Compton scattering, and pair production. The attenuation of gamma rays through matter is presented along with the concept of attenuation coefficients. The concepts of filtering and shielding is discussed for optimizing a gamma ray spectrum.
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Moskalenko, Igor V., Andrew W. Strong, and Olaf Reimer. "Diffuse Gamma Rays." In Cosmic Gamma-Ray Sources. Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2256-2_12.

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Lombardi, M., M. H. Carpenter, D. J. Mercer, P. A. Russo, and D. T. Vo. "Gamma-Ray Detectors." In Nondestructive Assay of Nuclear Materials for Safeguards and Security. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58277-6_4.

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AbstractThis chapter describes gamma-ray detectors, including gas-filled, scintillation, solid-state, and microcalorimeter, that can be used for measuring gamma rays from nuclear materials. A comparison of detector types is presented. The characteristics of detected spectra is presented starting with the generic detector response and spectral features. Detector resolution and efficiency is defined.
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Takata, Jumpei. "Gamma Ray Pulsars: From Radio to Gamma Rays." In Handbook of Supernovae. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-20794-0_73-1.

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Conference papers on the topic "Gamma rays"

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Mason, Paul, and Peter L. Biermann. "Cosmic Rays, Supernovae, Gamma-Ray Bursts, and Life." In The Golden Age of Cataclysmic Variables and Related Objects - VI. Sissa Medialab, 2024. http://dx.doi.org/10.22323/1.460.0046.

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Rachen, Jörg P., and P. Mészáros. "Cosmic rays and neutrinos from gamma-ray bursts." In GAMMA-RAY BURSTS. ASCE, 1998. http://dx.doi.org/10.1063/1.55402.

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Liang, Edison P. "X-rays from gamma ray bursts." In Gamma-ray bursts: Second workshop. AIP, 1994. http://dx.doi.org/10.1063/1.45921.

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Lipari, Paolo. "Cosmic rays observations and gamma rays." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 6th International Meeting on High Energy Gamma-Ray Astronomy. Author(s), 2017. http://dx.doi.org/10.1063/1.4968895.

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Truran, James W., and Sumner Starrfield. "Gamma rays and X-rays from classical novae." In COMPTON GAMMA-RAY OBSERVATORY. AIP, 1993. http://dx.doi.org/10.1063/1.44165.

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Digel, Seth W. "The origin of cosmic rays and the diffuse galactic gamma-ray emission." In GAMMA 2001: Gamma-Ray Astrophysics 2001. AIP, 2001. http://dx.doi.org/10.1063/1.1419446.

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Buckley, James H. "Very high energy gamma rays from blazars." In GAMMA 2001: Gamma-Ray Astrophysics 2001. AIP, 2001. http://dx.doi.org/10.1063/1.1419406.

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Jones, Lawrence W. "Results from GAMMA." In C2CR07: COLLIDERS TO COSMIC RAYS. AIP, 2007. http://dx.doi.org/10.1063/1.2775896.

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Isern, Jordi, Eduardo Bravo, and Pierre Jean. "Gamma rays from SNIa." In Frontier Research in Astrophysics – II. Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.269.0035.

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Tavecchio, Fabrizio. "Gamma rays from blazars." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 6th International Meeting on High Energy Gamma-Ray Astronomy. Author(s), 2017. http://dx.doi.org/10.1063/1.4968892.

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Reports on the topic "Gamma rays"

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Lipkin, H. J. Gamma rays for pedestrians. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/6474138.

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Simakov, S. Evaluation of the Prompt Gamma-ray Spectrum from Spontaneous Fission of 252Cf. IAEA Nuclear Data Section, 2024. http://dx.doi.org/10.61092/iaea.bz1p-e3yc.

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The energy spectra, multiplicities and average energies of the prompt, total and delayed γ-rays accompanying the spontaneous fission of 252Cf were collected from the literature and dedicated databases. They were carefully analysed for consistency with a view to producing reference data for usage in various applications. This could be accomplished for the prompt fission gamma ray spectrum up to 20 MeV since dozens of measurements exist and reasonably agree. The prompt fission gamma ray spectrum (PFGS) was non-model evaluated by fitting the preselected experimental data with the help of the gene
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Moskalenko, I. V. Hadronic Gamma Rays from Supernova Remnants. Office of Scientific and Technical Information (OSTI), 2007. http://dx.doi.org/10.2172/908759.

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Rawool-Sullivan, Mohini, and John P. Sullivan. Understanding Doppler Broadening of Gamma Rays. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1130509.

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Karpius, Peter Joseph. Effects of Shielding on Gamma Rays. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1346852.

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Stults, Katrina, and Peter Karpius. Effects of Shielding on Gamma Rays. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1776726.

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Parker, W. Gamma-Ray Library and Uncertainty Analysis: Passively Emitted Gamma Rays Used in Safeguards Technology. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/990415.

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Tuli, J. K. Thermal-neutron capture gamma-rays. Volume 1. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/491616.

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Tuli, J. K. Thermal-neutron capture gamma-rays. Volume 2. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/491617.

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Potter, Charles Augustus, Susan W. Longley, Bobby R. Scott, et al. Radiobiological studies using gamma and x rays. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1093692.

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