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Gamma Spectra and Dose Rate Measurements in Building 24

This status report covers the gamma spectra and dose rate measurements conducted in Building 24, including sample activation levels and equipment calibration. The measurements will continue over a period of 1000 hours until May 15, 2007.

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Gamma Spectra and Dose Rate Measurements in Building 24

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  1. T- 489Status Report 4/5/07 Yesterday: • 10am: access to ESA to retrieve Fe • samples and place Ti-alloy samples • Irradiation for 3.5hrs • 2:00 pm: access to ESA to retrieve downstream Fe samples • Continuous gamma spectrometry and dose rate measurements in building 24

  2. Gamma Spectra Measurements Dose Rate Measurements B24 Measurements

  3. Dose rates to be measured over a period of 1000 hours (until May 15, 2007) Short term sample activation levels at ~10 mSv/hr (1mR/hr) on contact Samples Species: Cu, Al, Fe, Ti, TiAlV, SS, dirt, concrete, water B24 Measurements

  4. AB01 Toroids

  5. Check of CID Toroid with respect to CID Faraday Cup (10% agreement) Likely to do a post experiment calibration of AB01 Toro 4140 AB01 Toroids

  6. Schedule for today: • 10am: take out Ti-Alloy and Steel Reference samples put in Al lateral and downstream and Steel Reference samples • Irradiation for 4hrs • 2pm: access to ESA to retrieve Al downstream sample • Continuous gamma spectrometry and dose rate measurements in • building 24 • Will run through weekend until 7:00 AM Monday (09-May-2007)

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