PatentDOI
Air proportional counter
TLDR
In this paper, a variety of proportional counter designs may be developed which are stable both with and without thin windows, and a few counter designs which have applications in the detection of alpha-radioactive contamination are discussed in detail.Abstract:
Some properties of proportional counters using air at atmospheric pressure are described. It is shown that a variety of counter designs may be developed which are stable both with and without thin windows. A few counter designs which have applications in the detection of alpha‐radioactive contamination are discussed in detail.read more
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Electric incandescent lamp
TL;DR: The electric incandescent lamp has a sintered glass plate (1) through which current conductors and a metal tube (3) extend as discussed by the authors, and a glass bulb is present over the glass plate.
Journal ArticleDOI
A history of radiation detection instrumentation
TL;DR: A review of the history of radiation detection instrumentation is presented, focusing on a few key events in the development of a given detection system and some relevant operating principles.
Journal ArticleDOI
Geiger Counter Tubes
TL;DR: A review of existing theories and methods of constructing tubes to obtain maximum counting efficiencies and other desirable characteristics, such as low threshold voltage, thermal insensitivity, long life, high resolution, and low background, can be found in this paper.
Journal ArticleDOI
A new type of ?-particle bench monitor
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Single and double grid long-range alpha detectors
TL;DR: In this article, a voltage is generated in a single electrically conductive grid while a fan draws air containing air molecules ionized by alpha particles through an air passage and across the conductive grids.
References
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Journal ArticleDOI
Design of Dynamic Condenser Electrometers
TL;DR: The theory and design considerations for dynamic condenser electrometers are presented and the description and performance of two instruments specifically designed to measure d.c. currents of the order of 10−15 ampere are described.
Journal ArticleDOI
An Investigation of the Properties of Proportional Counters. I
M. E. Rose,Serge A. Korff +1 more
TL;DR: In this paper, a theoretical and experimental investigation of the amplification properties of proportional counters has been made with the following primary assumptions: (1) All secondaries are produced by electron impact with no photon emission in the counter gas and thus no photoelectric emission at the cathode; (2) fluctuations in energy loss and specific ionization are neglected; and (3) the analysis involves the determination of the average number of ionizing collisions per unit distance (average energy) as a function of position in a counter, and the spatial extent of the ionization region near the wire an
Journal ArticleDOI
A Precision Alpha‐Proportional Counter
TL;DR: An instrument is described which will detect and record the alpha‐disintegration rate of prepared radioactive samples even though soft beta‐radiation up to 5×109 disintegrations per minute may also be present.