Thermoluminescence dosimetry card reader heating assembly

The TLD card reader of 1 wherein said conduit means has an inlet end opposite said outlet end and said means for passing an electrical current comprises a pair of electrical leads, one of said electrical leads mechanically and electrically contacting said conduit means

• at a first location near said outlet end and the other of said electrical leads mechanically and electrically contacting said conduit means
• at a second location spaced from said first location along said conduit means, and a controllable current source means, operatively connected to said leads, for controllably generating an electrical current.

A TLD card reader comprising:

• a plurality of means for detecting light emitted by respective heated TL elements;
• and
• means for heating each of a plurality of TL elements, said means for heating comprising a plurality of conduit means each associated with a respective one of said plurality of means for detecting for channeling a flow a gas to a respective one of said TL elements, each of said conduit means having an outlet end for discharging said gas against a respective TL element, and means for independently heating each of said conduit means to heat the gas flowing through each of said conduit means, thereby independently, controllably to heat each TL element, and said conduit means being heated by said means for independently heating over a portion thereof terminating in close proximity to said outlet end of said conduit means.

An assembly for heating a TL element comprising an electrically conducting conduit means for channeling and heating a flow of gas, said conduit means having an outlet end for discharging said gas against a TL element, and means operatively connected to said conduit means for controllably passing an electrical current through said conduit means to heat said conduit means, thereby controllably to heat said gas flowing through said conduit means for controllably heating a TL element .

A TLD card reader comprising:

• a plurality of means for detecting light emitted by heated TL elements;
• and
• means for heating each of a plurality of TL elements, said means for heating comprising a plurality of conduit means for channeling a flow of a gas, each of said conduit means having an outlet end for discharging said gas against a TL element, and means for independently heating each of said conduit means to heat the gas flowing through each of said conduit means, thereby independently, controllably to heat each TL element, and each of said conduit means being electrically conducting and said means for heating comprising means operatively connected to each of said conduit means for controllably passing an electrical current through said conduit means to heat said conduit means thereby controllably to heat said gas through said conduit means.