AN IMPROVED NUCLEAR DENSITY GAUGE. Quarterly Report No. 1 Covering the Period from June 1 to September 1, 1959

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Description

A mass gaging technique is being investigated in which the detector alternately views radiations transmitted through the test specimen and through a calibrated step wedge. Thulium-170 was used in initial investigations; however, sources of higher and lower energies are to be examined. Variations of balancing systmas are discussed and results of tests using NaI(Tl) and CsI(Tl) crystals with non-commutating systems are tabulated. Commutating system's operation was tested at a chopping frequency of 10 cps. Much smoother servo operation was noted than was demonstrated by the non-commutating system. A circuit diagram of the commutating system is included. (J.R.D.)

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Pages: 20

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Burgwald, G.M. October 1, 1959.

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Description

A mass gaging technique is being investigated in which the detector alternately views radiations transmitted through the test specimen and through a calibrated step wedge. Thulium-170 was used in initial investigations; however, sources of higher and lower energies are to be examined. Variations of balancing systmas are discussed and results of tests using NaI(Tl) and CsI(Tl) crystals with non-commutating systems are tabulated. Commutating system's operation was tested at a chopping frequency of 10 cps. Much smoother servo operation was noted than was demonstrated by the non-commutating system. A circuit diagram of the commutating system is included. (J.R.D.)

Physical Description

Pages: 20

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NTIS

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

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  • Report No.: ARF-1152-3
  • Grant Number: AT(11-1)-745
  • DOI: 10.2172/4201842 | External Link
  • Office of Scientific & Technical Information Report Number: 4201842
  • Archival Resource Key: ark:/67531/metadc878254

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  • October 1, 1959

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  • Sept. 21, 2016, 2:29 a.m.

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Burgwald, G.M. AN IMPROVED NUCLEAR DENSITY GAUGE. Quarterly Report No. 1 Covering the Period from June 1 to September 1, 1959, report, October 1, 1959; United States. (digital.library.unt.edu/ark:/67531/metadc878254/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.