LEACHING OF TAMALPAIS DEBRIS

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From Tamalpais debris crushed to <53 mu , 5.5, 19.6, and 12.5 f the alpha, beta, and gamma activities, respectively, were leached in 72 hr at room temperature by a 100 to 1 weight excess of ground water from the Nevada test site. The extracted alpha-activity material was> 97% Pu/sup 239/ and < 3% Am/sup 241/, and the gamma was 92% Ru/sup106/, 4.7% ZrNb/sup 95/, and 3.1% Cs/137/. The beta activities could not be identified. The ground water leached 10 to 20 times as high a percentage of activity from Tamalpais debris as from Rainier debris in a previous study, ... continued below

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10 p.

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Bond, W.D. & Clark, W.E. January 28, 1960.

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Description

From Tamalpais debris crushed to <53 mu , 5.5, 19.6, and 12.5 f the alpha, beta, and gamma activities, respectively, were leached in 72 hr at room temperature by a 100 to 1 weight excess of ground water from the Nevada test site. The extracted alpha-activity material was> 97% Pu/sup 239/ and < 3% Am/sup 241/, and the gamma was 92% Ru/sup106/, 4.7% ZrNb/sup 95/, and 3.1% Cs/137/. The beta activities could not be identified. The ground water leached 10 to 20 times as high a percentage of activity from Tamalpais debris as from Rainier debris in a previous study, but on a count rate basis the total activity released to the ground water was a factor of 2 greater for Rainier than for Tamalpais. Increasing the leaching temperature from room temperature to boiling doubled the amount of active material extracted. increasing the particle size clsssification from <53 to 5901190 mu decreased the extraction efficiently approximately 3- fold. (auth)

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10 p.

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NTIS

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • Report No.: ORNL-2810
  • Grant Number: W-7405-ENG-26
  • DOI: 10.2172/4205036 | External Link
  • Office of Scientific & Technical Information Report Number: 4205036
  • Archival Resource Key: ark:/67531/metadc879844

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  • January 28, 1960

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • April 17, 2017, 2:45 p.m.

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Bond, W.D. & Clark, W.E. LEACHING OF TAMALPAIS DEBRIS, report, January 28, 1960; Tennessee. (digital.library.unt.edu/ark:/67531/metadc879844/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.