Automatic gamma radiation scanning device and feed mechanism for plural sample holders
First Claim
1. Apparatus for measuring the gamma radiation label in each of a plurality of samples located in a number of rows on a sheet member carried by a sample holder, comprising:
- a measuring station having at least one gamma radiation detector adapted for movement along a first path;
means for moving said detector along said first path from sample location to sample location within a row of samples to thereby measure the gamma radiation label of each of said samples along said first path;
means for holding a plurality of said sample holders; and
,means for sequentially advancing said sample holders from said holding means to said measuring station to bring successive rows in line with said first path for measuring the gamma radiation label of said samples and for thereafter moving said sample holder away from said measuring station, said sequential advancing means comprising an endless flexible link means movable around a closed loop, the upper reach of which is generally horizontal and defines a second path, the endless belt having a series of spaced apart transverse projections adapted to engage a single sample holder and move the same toward said measuring station as said belt moves around said loop and means for driving said endless belt around said loop.
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Abstract
Apparatus is disclosed for measuring the level of gamma radiation contained in a plurality of biological samples which are located on the fibrous sheet member carried by a sample holder. The apparatus is adapted to count the radiation level of the number of closely spaced samples located in rows and columns on the sheet by automatically sequencing through the individual samples within the rows and to advance the holder to bring successive rows into proximity with the detector. The detector is moved from sample to sample within the rows, although a number of detectors can be employed. A plurality of sample holders are automatically advanced to the detector.
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Citations
25 Claims
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1. Apparatus for measuring the gamma radiation label in each of a plurality of samples located in a number of rows on a sheet member carried by a sample holder, comprising:
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a measuring station having at least one gamma radiation detector adapted for movement along a first path; means for moving said detector along said first path from sample location to sample location within a row of samples to thereby measure the gamma radiation label of each of said samples along said first path; means for holding a plurality of said sample holders; and
,means for sequentially advancing said sample holders from said holding means to said measuring station to bring successive rows in line with said first path for measuring the gamma radiation label of said samples and for thereafter moving said sample holder away from said measuring station, said sequential advancing means comprising an endless flexible link means movable around a closed loop, the upper reach of which is generally horizontal and defines a second path, the endless belt having a series of spaced apart transverse projections adapted to engage a single sample holder and move the same toward said measuring station as said belt moves around said loop and means for driving said endless belt around said loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. Apparatus for holding a plurality of samples located in a rectilinear array for use in gamma radiation counting apparatus and comprising:
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a generally flat support member having a generally rectangular surface area; a thin fibrous absorbent sheet member overlying said surface area and containing a plurality of sample locations in a plurality of rows and columns spaced apart from one another; a shielding cover overlying said fibrous sheet and being resiliently coupled to said support member, said cover having a plurality of fenestrations generally coinciding with said sample locations, said cover being adapted to isolate one sample location from an adjacent sample location during gamma radiation counting and to maintain said fibrous sheet in predetermined and uniform spacial relation relative to the counting apparatus. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. Apparatus for measuring the gamma radiation label in each of a plurality of samples located in a number of rows on a sheet member carried by a sample holder, comprising:
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a measuring station station having at least one gamma radiation detector adapted for movement along a first path; means for moving said detector along said first path from sample location to sample location within a row of samples to thereby measure the gamma radiation label of each of said samples along said first path; means for holding a plurality of said sample holders; means for sequentially advancing said sample holders from said holding means to said measuring station to bring successive rows in line with said first path for measuring the gamma radiation label of said samples and for thereafter moving said sample holder away from said measuring station; and
,each of said sample holders comprising a generally flat rectangular support member and a cover, said sheet member being located between said support member and cover and comprising a thin fibrous sheet adapted to absorb a measured amount of sample solution containing a radioactive label at predetermined locations spaced apart from one another and located in successive rows, said cover having a plurality of fenestrations exposing said plurality of sample locations of said fibrous sheet. - View Dependent Claims (25)
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Specification