Airborne radioactivity produced at high-energy accelerators

Rindi, A.; Charalambus, S.

doi:10.1016/0029-554x(67)90434-x

Cited by 24 publications

(9 citation statements)

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“…Figure 17 shows a comparison of measured and calculated decay curves as reported by Rindi and Charalambus. 84 …”

Section: Mt] -Mt] (30)mentioning

confidence: 97%

“…In 1967, Rindi and Charalambus 84 reported a detailed calculation of all the possible radioisotopes which can be produced by interaction of the radiation produced from high-energy proton accelerators with air. They also reported finding 13 N, "C, 41 air of the CERN 500-MeV proton synchrocyclotron and 28-GeV proton sychrotron by measuring the decay of the radioactive air in an air-flow ionization chamber.…”

Section: / Radionuclides Produced Directly In Airmentioning

confidence: 99%

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Radiological environmental impact of high‐energy accelerators

Thomas

Rindi

Hull

et al. 1979

C R C Critical Reviews in Environmental Control

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“…Figure 17 shows a comparison of measured and calculated decay curves as reported by Rindi and Charalambus. 84 …”

Section: Mt] -Mt] (30)mentioning

confidence: 97%

Section: / Radionuclides Produced Directly In Airmentioning

confidence: 99%

Radiological environmental impact of high‐energy accelerators

Thomas

Rindi

Hull

et al. 1979

C R C Critical Reviews in Environmental Control

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“…These have been identified in air at other particle accelerators. The radionuclides are produced by primary protons as well as secondary particles via spallation, ( y, n) and thermal capture reactions (Rindi and Charalambus 1967;Hofert 1969;Baarli and Peetermans 1974;ICRU 1978;IAEA 1979;IAEA 1988;Moritz 1987). Production of 38Cl and 39Cl via ( y, pn) and ( y, p) reactions with 40Ar has also been reported (IAEA 1988;Vialettes 1969).…”

Section: Procedures and Measurementsmentioning

confidence: 99%

Measurements of Radioactive Gaseous Releases to Air from Target Halls at a High-energy Proton Accelerator

Butala

Baker²,

Yurista³

1989

Health Physics

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Measurements of induced radioactivity concentration in air were made at five target halls associated with the Fermilab high-energy proton synchrotron. A gas flow-through ionization chamber was used to continuously sample air released from an exhaust stack at each location. The radioactive decay of a grab sample of air from each target hall was recorded, and a best-fit of each decay curve was made via iterative steps to determine the mixture of radionuclides present. The radionuclides 11C, 13N, 15O, 38Cl, 39Cl, and 41Ar were identified. Two distinct radionuclide mixtures or "signatures" were found and were correlated to the geometry of the proton loss point. The normalized activity release rates for the five target areas agree within a factor of two of the average value of 2.7 muBq per proton for 800 GeV protons.

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“…is a parameter which depends on several variables but is a constant for any given set of irradiation, target and geometrical conditions. Presently, the concentrations of radioactive gases measured in the accelerator room a few minutes after shutdown, may range between 10 and 30 times the MPC for continuous inhalation (139). However, the air is quickly mixed with inert air and the radioactivity decays.…”

Section: A Radioactivity Of Accelerator Components and Other Solidsmentioning

confidence: 99%