Electronics progress report, January 1--31, 1949

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Description

Considerable study has been given to the problem of a cathode-follower coupling circuit for matching a B-wall tube to a properly terminated coaxial cable. A matched circuit makes it possible to obtain faster counting rates independent of practical cable lengths. A breadboard circuit has been built and first results indicate that a two millivolt signal at the input of the cathode-follower will operate the Model 162 Instrument Development Laboratory Scaling Unit when adjusted for maximum gain. This is comparable to the voltage available when the B-wall tube is coupled to its amplifier through a coaxial cable. Shielded room measurements have ... continued below

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15 p.

Creation Information

Heyd, J.W. January 31, 1949.

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  • Mound Plant (U.S.)
    Publisher Info: Mound Lab., Miamisburg, OH (United States)
    Place of Publication: Miamisburg, Ohio

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Description

Considerable study has been given to the problem of a cathode-follower coupling circuit for matching a B-wall tube to a properly terminated coaxial cable. A matched circuit makes it possible to obtain faster counting rates independent of practical cable lengths. A breadboard circuit has been built and first results indicate that a two millivolt signal at the input of the cathode-follower will operate the Model 162 Instrument Development Laboratory Scaling Unit when adjusted for maximum gain. This is comparable to the voltage available when the B-wall tube is coupled to its amplifier through a coaxial cable. Shielded room measurements have been completed in the ``R`` Building. One log-amplifier (EL-257) was delivered to group 32, one scaler-multiplier (EL-252) to group 34, one four-input GM mixer (EL-247 to Group 24, and the plating control regulation checker (EL-258) plus the portable pulse generator (EL-261) to Group 12. The scaler-multiplier (EL-253)is 20 per cent complete and the motor-driven slide wire and the four-input gamma mixer (EL-262) are 95 per cent complete. The manufacturing specifications for plating controls and the instruction book for the portable pulse generator (EL-2561) have been submitted for duplication and should be completed by January 31, 1949. The two (2) 6 volt, 60 ampere rectifiers in Room R-107 have been checked and re-finished. All of the automotive-type batteries delivered to R-107 were almost completely discharged and some had bulged cases, which looked as through they had been frozen. They are now being charged, a few at a time, to determine which ones are serviceable. The plating controls installed for Group 18 were checked and repaired. Two parallel plate alpha counters, one Logac-3, three Simpson counters, and the Beta-Gamma counter have been installed in E-107 and are ready for operation.

Physical Description

15 p.

Notes

OSTI as DE96001530

Source

  • Other Information: PBD: [1939]

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  • Other: DE96001530
  • Report No.: MLM--280
  • Grant Number: AC24-88DP43495
  • DOI: 10.2172/116568 | External Link
  • Office of Scientific & Technical Information Report Number: 116568
  • Archival Resource Key: ark:/67531/metadc621925

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 31, 1949

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

Description Last Updated

  • Feb. 17, 2017, 3:39 p.m.

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Heyd, J.W. Electronics progress report, January 1--31, 1949, report, January 31, 1949; Miamisburg, Ohio. (digital.library.unt.edu/ark:/67531/metadc621925/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.