Measurements of radioactive gaseous releases to air from target halls at a high-energy proton accelerator

Journal Article · Fri Dec 01 00:00:00 EST 1989 · Health Physics; (USA)

DOI:https://doi.org/10.1097/00004032-198912000-00005· OSTI ID:5087177

Butala, S W; Baker, S I; Yurista, P M ^[1]

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1. Fermi National Accelerator Laboratory, Batavia, IL (USA)

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 {sup 11}C, {sup 13}N, {sup 15}O, {sup 38}Cl, {sup 39}Cl, and {sup 41}Ar 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.

• OSTI ID: 5087177
• Journal Information: Health Physics; (USA), Vol. 57:6; ISSN 0017-9078
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ARGON 41
RADIATION MONITORING
CARBON 11
CHLORINE 38
CHLORINE 39
NITROGEN 13
OXYGEN 15
AIR POLLUTION
FERMILAB ACCELERATOR
PROTONS
RADIATION PROTECTION
RADIOACTIVE AEROSOLS
RADIOECOLOGICAL CONCENTRATION
ACCELERATORS
AEROSOLS
ARGON ISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CARBON ISOTOPES
CHLORINE ISOTOPES
COLLOIDS
CYCLIC ACCELERATORS
DISPERSIONS
ECOLOGICAL CONCENTRATION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
HADRONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MINUTES LIVING RADIOISOTOPES
MONITORING
NITROGEN ISOTOPES
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OXYGEN ISOTOPES
POLLUTION
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SOLS
SYNCHROTRONS
540130* - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (1990-)