| 摘要 |
A portable measurement apparatus is presented for inducing and measuring fluorescent X-ray radiation. It comprises an X-ray source ( 303, 902, 1005, 1105 ) adapted to controllably irradiate a sample ( 301, 803 ) with X-rays, and a detector ( 305, 406, 1006, 1106 ) adapted to detect fluorescent radiation emitted by said sample ( 301, 803 ). The X-ray source ( 303, 902, 1005, 1105 ) is an X-ray tube, an anode of which comprises at least one of silver, rhodium and molybdenium. Consequently said X-ray tube is adapted to controllably emit L-line radiation of at least one of silver, rhodium and molybdenium.
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