Colorimetric dosimeter
First Claim
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1. A colorimetric dosimeter comprising:
- an elongated indicator housing openable at one end and having an inner wall surface defining an interior space extending along the length thereof;
said housing being partitioned into a first portion starting at said one end and a second portion following behind said first portion;
a strip indicator defining a high-sensitivity region and being disposed in said first portion so as to conjointly define a clear through diffusion passage with said inner wall surface in said first portion which extends to said second portion; and
,a granular indicator defining a low-sensitivity region and being disposed in said second portion.
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Abstract
The invention relates to a colorimetric dosimeter including an indicator housing openable at one end and having a wall defining an interior space extending along the length thereof. The housing is partitioned into a first portion starting at the one end and a second portion following behind the first portion. A strip indicator defines a high-sensitivity region and is disposed in the first portion so as to conjointly define a clear through diffusion passage with the wall which extends to the second portion. A granular indicator defining a low-sensitivity region is disposed in the second portion.
11 Citations
5 Claims
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1. A colorimetric dosimeter comprising:
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an elongated indicator housing openable at one end and having an inner wall surface defining an interior space extending along the length thereof; said housing being partitioned into a first portion starting at said one end and a second portion following behind said first portion; a strip indicator defining a high-sensitivity region and being disposed in said first portion so as to conjointly define a clear through diffusion passage with said inner wall surface in said first portion which extends to said second portion; and
,a granular indicator defining a low-sensitivity region and being disposed in said second portion.
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2. The colorimetric dosimeter of claim 1, further comprising a permeable intermediate layer disposed in said housing between said first portion and said second portion for partitioning said high-sensitivity region from said low-sensitivity region.
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3. The colorimetric dosimeter of claim 1, further comprising an impermeable intermediate layer disposed in said housing between said first portion and said second portion for partitioning said high-sensitivity region from said low-sensitivity region.
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4. The colorimetric dosimeter of claim 1, wherein said housing is a tubular housing and said strip indicator is formed on a portion of said inner wall surface in said first portion.
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5. The colorimetric dosimeter of claim 1, wherein said granular indicator is a granular bed filling said housing in said second portion thereof.
Specification