An Alpha Survey Radiac for Field Use

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Description

Abstract: An alpha survey radiac employing a photomultiplier tube and scintillation detector has been developed. The instrument utilizes transistor circuitry and operates from two standard flashlight batteries. Four linear ranges are provided with full scale indication on the highest range corresponding to 10,000 g /m2 Pu2 39. The instrument was designed with .a separable probe and a telescoping extension for easier ground monitoring. A thorium metal source is attached to the instrument housing for checking instrument calibration in the field. The device conforms satisfactorily to the military requirements for altitude, humidity, vibration, shock, and storage. The operational battery life is … continued below

Physical Description

34 p. : ill. ; 28 cm.

Creation Information

Sinclair, K. & Kiyoi, G. May 14, 1959.

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  • Main Title: An Alpha Survey Radiac for Field Use
  • Alternate Title: U.S. Naval Radiological Defense Laboratory-Technical Report (USNRDL-TR)
  • Series Title: USNRDL-TR
  • Series Title: U.S. Naval Radiological Defense Laboratory Reports
  • Added Title: U.S. Naval Radiological Defense Laboratory Report TR-326

Description

Abstract: An alpha survey radiac employing a photomultiplier tube and scintillation detector has been developed. The instrument utilizes transistor circuitry and operates from two standard flashlight batteries. Four linear ranges are provided with full scale indication on the highest range corresponding to 10,000 g /m2 Pu2 39. The instrument was designed with .a separable probe and a telescoping extension for easier ground monitoring. A thorium metal source is attached to the instrument housing for checking instrument calibration in the field. The device conforms satisfactorily to the military requirements for altitude, humidity, vibration, shock, and storage. The operational battery life is in excess of 40 hours. Instrument error at low temperatures slightly exceeds the 20% accuracy requirement; however, adequate measurements are readily made by using the thorium check source to provide a check point. Instrument response to low energy X-rays is excessive. However, tests indicate that a simple lead filter will eliminate this difficulty.

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34 p. : ill. ; 28 cm.

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Title Page indicates report number TR-317.

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  • OCLC: 954001312
  • SuDoc Number: Y 3.At 7:22/USNRDL-TR-326
  • Report No.: USNRDL-TR-326
  • Archival Resource Key: ark:/67531/metadc784321

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Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

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  • May 14, 1959

Added to The UNT Digital Library

  • July 14, 2017, 6:39 a.m.

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  • Aug. 14, 2019, 1:03 p.m.

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Sinclair, K. & Kiyoi, G. An Alpha Survey Radiac for Field Use, report, May 14, 1959; San Francisco. Calif.. (https://digital.library.unt.edu/ark:/67531/metadc784321/: accessed July 18, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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