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in subjects: "Iridium 192"  
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Iridium-192 Production for Cancer Treatment

Description: The purpose of this work is to settle a laboratory for Iridium -192 sources production, that is, to determine a wire activation method and to build a hot cell for the wires manipulation, quality control and packaging. The paper relates, mainly, the wire activation method and its quality control. The wire activation is carried out in our nuclear reactor, IEA- R1m.
Date: October 5, 2004
Creator: Rostelato, M.E.C.M.; Silva, C.P.G.; Rela, P.R.; Zeituni, C.A.; Lepki, V. & Feher, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Using ytterbium-169 for safe and economical industrial radiography

Description: Safety has become an issue of paramount importance for industrial radiography. Many NDE facilities and suppliers are finding the cost of performing radiography Prohibitive due to heightened safety concerns for radiation area protection. The most common sources used in radiography, Iridium-192 and Cobalt-60, result in high radiation fields over a large area. Even when collimators are used large radiation fields can result from multicurie source radiography. Radiographic operations are being forc… more
Date: January 1, 1994
Creator: Dowalo, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigations into the Optimization of Multi-Source Strength Brachytherapy Treatment Procedures

Description: The goal of this project is to investigate the use of multi-strength and multi-specie radioactive sources in permanent prostate implant brachytherapy. In order to fulfill the requirement for an optimal dose distribution, the prescribed dose should be delivered to the target in a nearly uniform dose distribution while simultaneously sparing sensitive structures. The treatment plan should use a small number of needles and sources while satisfying the treatment requirements. The hypothesis for the… more
Date: September 30, 2002
Creator: Henderson, D. L.; Yoo, S. & Thomadsen, B.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High-level core sample x-ray imaging at the Hanford Site

Description: Waste tank sampling of radioactive high-level waste is required for continued operations, waste characterization, and site safety. Hanford Site tank farms consist of 28 double-shell and 149 single-shell underground storage tanks. The single shell tanks are out-of-service an no longer receive liquid waste. Core samples of salt cake and sludge waste are remotely obtained using truck-mounted, core drill platforms. Samples are recovered from tanks through a 2.25 inch (in.) drill pipe in 26-in. stee… more
Date: October 1, 1995
Creator: Weber, J. R. & Keve, J.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An aerial radiological survey of the Wright-Patterson Air Force Base and surrounding area, Fairborn, Ohio

Description: An aerial radiological survey was conducted over areas of Wright-Patterson Air Force Base (WPAFB) and the immediate surrounding area, during the period July 7 through 20, 1994. The survey was conducted to measure and map the gamma radiation in the area. This mission was the first aerial radiation survey conducted at WPAFB. In the surveyed area, five small localized sources of gamma radiation were detected which were atypical of naturally-occurring radionuclides. On WPAFB property, these sources… more
Date: August 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Production of Polonium 210, Thulium 170, and Iridium 192 in a Hanford production pile

Description: This report describes a study which has been completed of Hanford production pile space requirements for the manufacture of polonium 210, thulium 170, and iridium 192. Sufficient radioisotope is required for the generation of 2000 watts of heating by radioactive decay after a decay period of 150 days.
Date: June 14, 1956
Creator: Fry, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sealed source and device design safety testing: Technical report on the findings of task 4 -- Investigation of failed Nitinol brachytherapy wire. Volume 2

Description: This report covers an investigation of the nature and cause of failure in Nitinol brachytherapy sourcewires. The investigation was initiated after two clinical incidents in which sourcewires failed during or immediately after a treatment. The investigation determined that the two clinical Nitinol sourcewires failed in a brittle manner, which is atypical for Nitinol. There were no material anomalies or subcritical flaws to explain the brittle failures. The bend tests also demonstrated that neith… more
Date: March 1, 1996
Creator: Benac, D.J. & Burghard, H.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Isotope Production and Distribution Program. Financial statements, September 30, 1994 and 1993

Description: The attached report presents the results of the independent certified public accountants` audit of the Isotope Production and Distribution (IP&D) Program`s financial statements as of September 30, 1994. The auditors have expressed an unqualified opinion on IP&D`s 1994 statements. Their reports on IP&D`s internal control structure and on compliance with laws,and regulations are also provided. The charter of the Isotope Program covers the production and sale of radioactive and stable isotopes, by… more
Date: November 30, 1994
Creator: Marwick, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Type B investigation of the iridium contamination event at the High Flux Isotope Reactor on September 7, 1993

Description: On the title date, at ORNL, area radiation alarms sounded during a routine transfer of a shielding cask (containing 60 Ci{sup 192}Ir) from the HFIR pool side to a transport truck. Small amounts of Ir were released from the cask onto the reactor bay floor. The floor was cleaned, and the cask was shipped to a hot cell at Building 3047 on Oct. 3, 1993. The event was caused by rupture of one of the Ir target rods after it was loaded into the cask for normal transport operations; the rupture was the… more
Date: March 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculated cross sections for production and destruction of some long-lived nuclides of importance in fusion energy applications

Description: Knowledge of the production and destruction of long-lived species via neutrons, photons, and charged-particles is required in many fusion energy applications, such as reactor first-wall and blanket design, radioactive waste management, etc. Here we describe our calculational results for the production, via the (n,2n) reaction, of the following long-lived species: {sup 150}Eu(t{sub 1/2} = 36 y), {sup 152}Eu(t{sub 1/2} = 13 y), and {sup 192m2}Ir(t{sub 1/2} = 241 y). Some comments on calculations … more
Date: July 8, 1993
Creator: Gardner, M. A. & Gardner, D. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Evaluation of exposure pathways to man from disposal of radioactive materials into sanitary sewer systems

Description: In accordance with 10 CFR 20, the US Nuclear Regulatory Commission (NRC) regulates licensees` discharges of small quantities of radioactive materials into sanitary sewer systems. This generic study was initiated to examine the potential radiological hazard to the public resulting from exposure to radionuclides in sewage sludge during its treatment and disposal. Eleven scenarios were developed to characterize potential exposures to radioactive materials during sewer system operations and sewage … more
Date: May 1, 1992
Creator: Kennedy, W. E. Jr.; Parkhurst, M. A.; Aaberg, R. L.; Rhoads, K. C.; Hill, R. L. & Martin, J. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of fluorescent screens for isotope radiography

Description: Radiographic examination can be performed on items beyond the limitation of conventional isotope radiography without a great loss of resolution. With proper film and screen selection and scatter radiation control, fluorescent screens can be a valuable additional tool for radiography.
Date: January 1, 1979
Creator: Hubbard, S. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Integro-differential equation analysis and radioisotope imaging systems. Research proposal. [Testing of radioisotope imaging system in phantoms]

Description: Design modifications of a five-probe focusing collimator coincidence radioisotope scanning system are described. Clinical applications of the system were tested in phantoms using radioisotopes with short biological half-lives, including /sup 75/Se, /sup 192/Ir, /sup 43/K, /sup 130/I, and /sup 82/Br. Data processing methods are also described. (CH)
Date: March 9, 1976
Creator: Hart, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiographic inspections at the Calipatria Geothermal Test Site

Description: A report is given of radiographic inspections to estimate the extent of corrosion and scale buildup at the Geothermal Test Site in Calipatria, California. Radiation exposure techniques using /sup 60/Co and /sup 192/Ir isotopes were developed. Radiography safety procedures were established. Five radiographic evaluations were made of the Geothermal Test Site from May 1976 to February 1977. Estimations of scale buildup from radiographs of operating plant pipes, valves, and tanks correlated closely… more
Date: March 8, 1978
Creator: Durbin, P. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The theoretical basis and clinical methodology for stereotactic interstitial brain tumor irradiation using iododeoxyuridine as a radiation sensitizer and samarium-145 as a brachytherapy source

Description: High grade astrocytomas have proven resistant to all conventional therapy. A technique to produce radiation enhancement during interstitial brain tumor irradiation by using a radiation sensitizer (IdUrd) and by stimulation of Auger electron cascades through absorption of low energy photons in iodine (Photon activation) is described. Clinical studies using IdUrd, {sup 192}Ir as a brachytherapy source, and external radiation have produced promising results. Substituting samarium-145 for {sup 192}… more
Date: January 1, 1989
Creator: Goodman, J. H.; Gahbauer, R. A.; Kanellitsas, C.; Clendenon, N. R. (Ohio State Univ., Columbus, OH (USA)); Laster, B. H. & Fairchild, R. G. (Brookhaven National Lab., Upton, NY (USA))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Calculations of long-lived isomer production in neutron reactions

Description: We present theoretical calculations for the production of the long-lived isomers: {sup 121m}Sn (11/2-, 55 yr), {sup 166m}Ho(7-, 1200 yr), {sup 184m}Re(8+, 165 d), {sup 186m}Re(8+, 2{times}10{sup 5} yr), {sup 178m}Hf(16+, 31 yr), {sup 179m}Hf(25/2-, 25 d), {sup 192m}Ir(9+, 241 yr), all which pose potential radiation activation problems in nuclear fusion reactors if produced in 14-MeV neutron-induced reactions. We consider mainly (n,2n) production modes, but also (n,n{sup {prime}}) and (n,{gamma}… more
Date: January 1, 1991
Creator: Chadwick, M.B. & Young, P.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fast neutron capture cross sections of /sup 169/Tm, /sup 191/Ir, /sup 193/Ir, and /sup 175/Lu for 3 less than or equal to E/sub n/ less than or equal to 2000 keV

Description: Fast-neutron capture cross sections of /sup 169/Tm, /sup 191/Ir, /sup 193/Ir, and /sup 175/Lu are presented in tabular form for neutron energies between 3 and 2000 keV. 1 table.
Date: August 1, 1978
Creator: Macklin, R.L.; Drake, D.M. & Malanify, J.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fast neutron capture cross sections of /sup 169/Tm, /sup 191/Ir, /sup 193/Ir, and /sup 175/Lu for 3 less than or equal to E/sub n/ less than or equal to 2000 keV

Description: Fast neutron capture cross sections of /sup 169/Tm, /sup 191/Ir, /sup 193/Ir, and /sup 175/Lu, and the /sup 6/Li(n,..cap alpha..)/sup 3/H cross sections to which they are normalized are presented in tabular form for neutron energies between 3 and 2000 keV.
Date: November 1, 1977
Creator: Macklin, R.L.; Drake, D.M. & Malanify, J.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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