阅读说明：本技术 放射性活度测量装置以及测量方法 (Radioactivity activity measuring device and measuring method ) 是由 陈晓亮 陈效先 胡晓 梁松 赵阶成 章秩烽 徐健平 周敏兰 于 2020-05-28 设计创作，主要内容包括：本公开的实施例提出一种放射性活度测量装置,其包括：储样部,提供样品存储空间；探测部,对待测样品进行活度测量；换样部,设置于所述储样部上方,执行将所述待测样品移动至所述探测部,以及将测量完成的样品移动至所述储样部；以及控制部,与所述储样部、所述换样部以及所述探测部电连接,控制换样和测量；其中,所述换样部包括第一移动件,用于带动样品可移动地往返于所述探测部与所述储样部之间；所述探测部设置第二移动件,用于将所述待测样品移动至测量位置。根据本公开实施例的测量装置,克服了现有技术采用人工换样的不足；同时对测量位置进行调节,能够提供优化的测量时间和测量精度。(An embodiment of the present disclosure provides a radioactivity measuring device, which includes: the sample storage part provides a sample storage space; a detection unit for measuring the activity of a sample to be measured; the sample changing part is arranged above the sample storage part, and is used for moving the sample to be measured to the detecting part and moving the sample after measurement to the sample storage part; the control part is electrically connected with the sample storage part, the sample changing part and the detection part and controls sample changing and measurement; the sample changing part comprises a first moving part for driving a sample to movably move between the detecting part and the sample storing part; the detection part is provided with a second moving part used for moving the sample to be measured to a measurement position. According to the measuring device disclosed by the embodiment of the disclosure, the defect that manual sample changing is adopted in the prior art is overcome; meanwhile, the measurement position is adjusted, and optimized measurement time and measurement precision can be provided.)

1. A radioactivity measuring device (100), comprising:

a sample storage part (10) for providing a sample storage space;

a detection unit (30) for measuring the activity of a sample to be measured;

a sample changing part (20) disposed above the sample storage part (10) and performing movement of the sample to be measured to the probing part (30) and movement of the sample after measurement to the sample storage part (10);

and the number of the first and second groups,

the control part is electrically connected with the sample storage part (10), the sample changing part (20) and the detection part (30) and controls sample changing and measurement;

wherein the content of the first and second substances,

the sample changing part (20) comprises a first moving part (201) which is used for driving a sample to movably move between the detecting part (30) and the sample storing part (10);

the detection part (30) is provided with a second moving part (301) for moving the sample to be measured to a measurement position.

2. The apparatus (100) of claim 1,

the first runner (201) comprises: a first moving part (2011), a second moving part (2012) and a third moving part (2013);

the extending directions of the first moving part, the second moving part and the third moving part form a preset angle in pairs;

the first moving part (2011) is provided with a grabbing part (2010) for grabbing a sample;

the grasping portion moves in the extending direction of the first moving portion, the second moving portion, and the third moving portion.

3. The apparatus (100) of claim 1,

the probe unit (30) includes: a lead chamber (302) and a detector (303);

the detector (303) is arranged in the lead chamber (302);

the second moving part (301) is arranged in the lead chamber (302) and is positioned above the detector (303).

4. The apparatus (100) of claim 3,

the second moving piece (301) extends along the axial direction of the lead chamber and is provided with a seat body (3011), and the seat body (3011) is used for containing a sample to be tested and driving the sample to be tested to move.

5. The apparatus (100) of claim 4,

an opening (3021) is formed in the top of the lead chamber (302) and used for the grabbing part (2010) to drive the sample to enter and exit the lead chamber (302).

6. The apparatus (100) of claim 5,

the detector (303) is a high-purity germanium detector;

the detector is also provided with a liquid nitrogen cooling device (3031) for providing working temperature for the detector.

7. The apparatus (100) of any of claims 1-6,

the control section includes: a PLC controller and a processing unit;

the processing unit is used for setting and sending parameters;

and the controller controls the sample changing part and the detecting part to work according to the parameters.

8. A method of measuring radioactivity, the method comprising:

moving the sample to be detected to a detection part;

continuously moving the sample to be detected to a first position;

judging whether the first position is a measurement position;

if the first position is a measurement position,

measuring the sample to be measured at the measuring position;

if the first position is not a measurement position,

continuously moving the sample to be measured to a next position, and judging whether the next position is a measuring position or not until the sample to be measured is moved to the measuring position;

and moving the sample after measurement to the sample storage part, and controlling the next sample to be measured to move and complete the measurement.

9. The method of claim 8, wherein,

the measurement method further comprises:

presetting measurement parameters;

the parameters include:

sample position parameters, so that the sample changing part sequentially grabs samples according to the sample position parameters;

and determining a parameter, and determining the measurement position of the sample to be measured according to the parameter.

10. The method of claim 9, wherein,

the step of determining whether the first position is a measurement position comprises:

judging whether the distance between the sample to be detected and the probe of the detector meets a preset condition or not according to preset judgment parameters;

and if not, continuously moving the sample to be measured until the sample to be measured is moved to the measuring position.

11. The method of claim 10, wherein,

the measurement method further comprises:

and determining the measurement time according to the distance between the sample to be measured and the probe of the detector.