CN2369254Y - Infrared personal meter - Google Patents
Infrared personal meter Download PDFInfo
- Publication number
- CN2369254Y CN2369254Y CN 99200207 CN99200207U CN2369254Y CN 2369254 Y CN2369254 Y CN 2369254Y CN 99200207 CN99200207 CN 99200207 CN 99200207 U CN99200207 U CN 99200207U CN 2369254 Y CN2369254 Y CN 2369254Y
- Authority
- CN
- China
- Prior art keywords
- groove
- liner
- cover
- sheet
- overcoat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims 2
- 230000005855 radiation Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 238000000904 thermoluminescence Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Measurement Of Radiation (AREA)
Abstract
一种热释光个人剂量计,包括有外套和内衬,该内衬上设有凹槽,凹槽内设置有探测器;其特征在于所述的外套内插设有一中套,上述的内衬则插设于该中套内;所述的内衬的凹槽为相互叠置的片状和柱状的两层。本实用新型方便于其内装置的探测器的取出与放置的操作;并于同一剂量计内可放置各种不同的探测器,扩大每一剂量计的使用范围;增强剂量计的抗破坏性,使之能更好地保护装设于剂量计内层的探测器,确保剂量计能正常使用功能。
A thermoluminescent personal dosimeter, comprising an outer jacket and an inner lining, the inner lining is provided with a groove, and a detector is arranged in the groove; it is characterized in that a middle sleeve is inserted in the outer jacket, and the inner lining The liner is inserted into the middle sleeve; the groove of the liner is two layers of sheet shape and column shape stacked on top of each other. The utility model is convenient for the operation of taking out and placing the detectors installed in it; various detectors can be placed in the same dosimeter, and the use range of each dosimeter is expanded; the anti-destructive performance of the dosimeter is enhanced, So that it can better protect the detector installed in the inner layer of the dosimeter, and ensure the normal function of the dosimeter.
Description
本实用新型有关一种辐射的测量装置，具体地讲一种热释光个人剂量计。The utility model relates to a radiation measuring device, in particular to a thermoluminescence personal dosimeter.
个人外照射剂量和监测的主要目的是估计受照组织内的平均剂量当量和有效剂量当量。个人剂量计是放射工作人员外照射剂量监测和主要方法。目前应用的较为广泛的是一种热释光剂量计，其是由多个探测器组成的无源器件，通常被装入剂量计的外套内，佩带于人体监测部位及放置在监测的环境中。The main purpose of personal external exposure dose and monitoring is to estimate the average dose equivalent and effective dose equivalent in the exposed tissue. Personal dosimeters are the main method of external radiation dose monitoring for radiation workers. At present, a thermoluminescent dosimeter is widely used, which is a passive device composed of multiple detectors, which is usually installed in the dosimeter's jacket, worn on the human body monitoring site and placed in the monitored environment. .
由本发明人在先发明的一种热释光个人剂量计，其结构主要包括有一由底座和上盖相互卡合呈封闭状态的外套体，于该外套体内装设有探测器内衬。根据使用探测器的种类不同，上述的剂量计分为两种，一种为片状探测剂量计，其主要是采用一种片状的探测器，其探测器内衬上设有矩形槽，该片状的探测器放置于该矩形槽内；另一种管状探测剂量计，其探测器内衬上设有柱形槽，玻管探测器则置于该柱形槽内。使用时将探测器内衬放置于底座上，根据所测量的需求，于内衬的槽内配置不同探测器，最后将上盖卡合于底座上，即组成一热释光个人剂量计。该剂量计可利用一卡扣配戴于人体上。A thermoluminescence personal dosimeter previously invented by the present inventor mainly includes an outer body which is closed by a base and an upper cover, and a detector liner is installed in the outer body. According to the different types of detectors used, the above-mentioned dosimeters are divided into two types, one is a sheet-shaped detection dosimeter, which mainly uses a sheet-shaped detector, and the inner lining of the detector is provided with a rectangular groove. A sheet-shaped detector is placed in the rectangular groove; another tubular detection dosimeter has a cylindrical groove on the inner lining of the detector, and the glass tube detector is placed in the cylindrical groove. When in use, the detector lining is placed on the base, and different detectors are arranged in the groove of the lining according to the measurement requirements, and finally the upper cover is snapped on the base to form a thermoluminescent personal dosimeter. The dosimeter can be worn on the human body with a buckle.
上述结构的个人剂量计在使用中发现有诸多的缺陷：其一，剂量计的外套体是由底座和上盖卡合而成，为在使用时该外套体不致脱开，须将底座和上盖卡合得非常紧，所以当需打开上盖取出其内的探测器进行测量时，常常会将外套体撬坏，使其丧失使用功能，并且操作十分不便；其二，两种剂量计因内衬的不同不能互换使用，在对不同的辐射源的测量情况下，则需另行装配另一个剂量计，使用起来十分的不方便，而且大大地增加了辐射的监测成本；其三，此种剂量计仅由一层外套体包覆，所以当该层外套体因意外破损漏光时，剂量计则丧失其使用功能。The personal dosimeter of above-mentioned structure is found to have many defectives in use: one, the outer body of dosimeter is formed by the snap-in of base and upper cover, for this outer body will not come off when in use, the base and upper cover must be connected. The cover is very tightly closed, so when it is necessary to open the upper cover to take out the detector in it for measurement, the outer casing is often broken, making it lose the function of use, and the operation is very inconvenient; secondly, the two dosimeters are The different linings cannot be used interchangeably. In the case of measuring different radiation sources, another dosimeter needs to be assembled separately, which is very inconvenient to use and greatly increases the cost of radiation monitoring; third, this This kind of dosimeter is only covered by one layer of outer casing, so when the outer casing of this layer is accidentally damaged and leaks light, the dosimeter then loses its use function.
本实用新型的目的在于提供一种热释光个人剂量计，使之能方便于其内装置的探测器的取出与放置的操作；并于同一剂量计内可放置各种不同的探测器，扩大每一剂量计的使用范围；增强剂量计的抗破坏性，使之能更好地保护装设于剂量计内层的探测器，确保剂量计能正常使用功能。The purpose of this utility model is to provide a thermoluminescent personal dosimeter, which can facilitate the operation of taking out and placing the detectors installed in it; and various detectors can be placed in the same dosimeter to expand The use range of each dosimeter; enhance the anti-destructive performance of the dosimeter, so that it can better protect the detector installed in the inner layer of the dosimeter, and ensure the normal function of the dosimeter.
本实用新型的目的是这样实现的；一种热释光个人剂量计，包括有外套和内衬，该内衬上设有凹槽，凹槽内设置有探测器；其特征在于所述的外套内插设有一中套，上述的内衬则插设于该中套内；所述的内衬的凹槽为相互叠置的片状和柱状的两层。The purpose of this utility model is achieved in the following way; a thermoluminescent personal dosimeter includes a jacket and a lining, the lining is provided with a groove, and a detector is arranged in the groove; it is characterized in that the jacket A middle sleeve is inserted inside, and the above-mentioned inner liner is inserted into the middle sleeve; the groove of the inner liner is two layers of sheet shape and column shape stacked on top of each other.
本实用新型的目的还可由如下措施实现的，所述的内衬上的凹槽上设有片状凹槽内可放置片状探测器，柱状凹槽内可放置有管状探测器。内衬上的两层凹槽可为对应的两组，每组可设有两个以上的片状凹槽和柱状凹槽。所述的中套的表面上的一端可设有两个以上的片状凹槽，其内可装设有片状探测器，与之对应的外套处设有与该片状凹槽对应的通孔，并于两者之间设有黑塑料薄膜。外套与中套之间可设有相互套合的导向装置，该导向装置是于外套的一侧边设有导向槽或导向凸条，中套的一侧壁对应向外纵向设有导向凸条或导向槽，导向凸条可沿导向槽插入。中套为一中空腔体，该中空腔体的开口端位于中套的向内插入端，内衬由该开口端插入中套内，于中套的开口端侧边设有纵向开口槽，内衬上与该开口槽对应处设有凸台卡设于该开口槽内。外套的表面设有凹槽，该凹槽内放置的补偿片，该凹槽位置可对应于内衬上其中一组装置有探测器的凹槽。中套侧边设有一凸台卡设于外套侧边的一开口槽。The purpose of the utility model can also be achieved by the following measures, the groove on the lining is provided with a sheet-shaped detector in which a sheet-shaped detector can be placed, and a tubular detector can be placed in a column-shaped groove. The two layers of grooves on the lining can be two corresponding groups, and each group can be provided with more than two sheet-shaped grooves and column-shaped grooves. One end on the surface of the middle sleeve can be provided with more than two sheet-shaped grooves, and sheet-shaped detectors can be installed in it, and the corresponding outer jacket is provided with a channel corresponding to the sheet-shaped grooves. hole with a black plastic film in between. There can be a guide device fitted between the outer cover and the middle cover. The guide device is provided with a guide groove or a guide protrusion on one side of the outer cover, and a guide protrusion is provided on the side wall of the middle cover corresponding to the outward longitudinal direction. Or the guide groove, the guide protrusion can be inserted along the guide groove. The middle sleeve is a hollow cavity. The opening end of the hollow cavity is located at the inward insertion end of the middle sleeve. The inner liner is inserted into the middle sleeve through the opening end. A boss is provided on the liner corresponding to the opening groove to be clamped in the opening groove. The surface of the jacket is provided with a groove, and the compensation sheet is placed in the groove, and the position of the groove can correspond to one of the grooves on the inner liner equipped with detectors. A boss is arranged on the side of the middle sleeve, and is fixed in an open groove on the side of the jacket.
本实用新型的原理及效果是，由于采用两层插套的结构，其组装和与分离均十分方便，大大地方便了于其内装置的探测器的取出与放置的操作；而于每层插套结构中均加设有导向装置，确保外套、中套以及内衬正确的安装位置，并利用相互嵌设结构也可方便于上述各部件的分离；而且于探测器外设有两层反向插置的外套和中套，进一步并增强剂量计的抗破坏性，使之能更好地保护装设于剂量计内层的探测器，确保剂量计能正常使用功能。另外本实用新型中的内衬上叠设有两种不同形状的凹槽，可放置不同的探测器，扩大了剂量计的使用范围，从而达到本实用新型的目的。The principle and effect of the utility model are that, due to the structure of the two-layer plug-in sleeve, its assembly and separation are very convenient, which greatly facilitates the operation of taking out and placing the detector installed in it; The sleeve structure is equipped with guide devices to ensure the correct installation position of the outer sleeve, middle sleeve and inner lining, and the mutual embedded structure can also facilitate the separation of the above-mentioned components; The inserted jacket and middle jacket further enhance the damage resistance of the dosimeter, so that it can better protect the detector installed in the inner layer of the dosimeter, and ensure the normal function of the dosimeter. In addition, the inner liner of the utility model is provided with two kinds of grooves with different shapes, which can place different detectors, which expands the scope of use of the dosimeter, thereby achieving the purpose of the utility model.
附图图面说明：Description of drawings:
图1本实用新型的立体分解图；The three-dimensional exploded view of the utility model of Fig. 1;
图2本实用新型的组装剖视图；Fig. 2 is a sectional view of assembly of the utility model;
图3本实用新型的第一种使用实施例；Fig. 3 is the first usage embodiment of the utility model;
图4本实用新型的第二种使用实施例；The second use embodiment of the utility model of Fig. 4;
图5本实用新型的第三种使用实施例。Fig. 5 is the third usage embodiment of the utility model.
下面将结合实施例及其附图详细说明本实用新型如下；The utility model will be described in detail below in conjunction with embodiment and accompanying drawing as follows;
请参见图1和图2所示，本实用新型包括有外套1、中套2和内衬3。外套1的呈中空状的腔体11内插设有一中套2，内衬3则插设于该中套2的中空腔体21内，该内衬3上设有凹槽31，凹槽31内设置有探测器4。本实用新型的上述双层的插套结构能方便地进行探测器4的取出与放置的操作；而且当外套因意外而损坏时，该中套2仍能对控测器4进行保护，以确保本实用新型的使用。Please refer to Fig. 1 and shown in Fig. 2, the utility model comprises an overcoat 1, a middle cover 2 and an inner liner 3. A middle cover 2 is inserted in the hollow cavity 11 of the outer cover 1, and the inner liner 3 is inserted in the hollow cavity 21 of the middle cover 2. The inner liner 3 is provided with a groove 31, and the groove 31 A detector 4 is arranged inside. The above-mentioned double-layer plug-in sleeve structure of the utility model can conveniently carry out the operation of taking out and placing the detector 4; Use of the utility model.
内衬3的凹槽31设于内衬3表面上，该凹槽31为由片状凹槽32和柱状凹槽33相互叠置的两层。其中，片状凹槽32较浅，在本实施例中设有两组片状凹槽32，每组为四个。每一片状凹槽32内可放置片状探测器41，如图3所示。与该片状凹槽32相互叠置设有柱状凹槽33，该柱状凹槽33略深于片状凹槽32，其内可放置有管状探测器42，如图4所示。在使用时可根据所探测的辐射源的不同而选择不同的探测器4，因此本实用新型能适应各种不同的计量需求，而无需在改变探测项目时再更换整个剂量计。上述两种主要用于X、γ个人、事故剂量的测量。The groove 31 of the inner liner 3 is provided on the surface of the inner liner 3 , and the groove 31 is two layers of laminated grooves 32 and columnar grooves 33 . Wherein, the sheet-shaped grooves 32 are relatively shallow, and in this embodiment, two sets of sheet-shaped grooves 32 are provided, each group being four. A sheet detector 41 can be placed in each sheet-shaped groove 32 , as shown in FIG. 3 . A columnar groove 33 is arranged on top of the sheet-shaped groove 32 . The columnar groove 33 is slightly deeper than the sheet-shaped groove 32 , and a tubular detector 42 can be placed therein, as shown in FIG. 4 . Different detectors 4 can be selected according to the detected radiation sources during use, so the utility model can adapt to various measurement requirements without changing the whole dosimeter when changing the detection items. The above two types are mainly used in the measurement of X, γ personal and accident doses.
中套2的表面上的一端可设有两个以上的片状凹槽22，而与之对应的外套1上设有与该片状凹槽22对应的通孔12。使用时可与该片状凹槽22内放置片状探测器41，再于探测器41上覆盖一层黑塑料薄膜5，如图5所示。此种使用状态主要是用于β剂量的测量。One end of the surface of the middle sleeve 2 may be provided with more than two sheet-shaped grooves 22 , and the corresponding outer casing 1 is provided with through holes 12 corresponding to the sheet-shaped grooves 22 . During use, a sheet detector 41 can be placed in the sheet groove 22, and then a black plastic film 5 is covered on the detector 41, as shown in FIG. 5 . This use state is mainly used for the measurement of β dose.
本实用新型中外套1与中套2之间可设有相互嵌合的导向装置，以确定其插设的正确方向。在本实施例中，导向装置可与外套1的一侧边设有导向槽13，而中套的一侧壁对应向外纵向设有导向凸条23，导向凸条23可沿外套1上的导向槽13插入。In the utility model, a guiding device fitted between the middle sleeve 1 and the middle sleeve 2 can be provided to determine the correct direction of insertion. In this embodiment, the guide device can be provided with a guide groove 13 on one side of the outer cover 1, and the side wall of the middle cover is correspondingly provided with a guide protrusion 23 longitudinally outward, and the guide protrusion 23 can be along the outer cover 1. The guide groove 13 is inserted.
上述外套1与中套2之间设有的相互嵌合的导向装置，也可呈与本实施例相反的设置，即外套1的一侧边向内纵向设有导向凸条，而中套的一外侧壁对应设有导向槽，外套1上的导向凸条可沿中套2上的导向槽插入。The interfitting guiding device provided between the above-mentioned overcoat 1 and the middle cover 2 can also be set opposite to this embodiment, that is, one side of the overcoat 1 is longitudinally provided with guide ribs inwardly, and the middle cover's One outer wall is correspondingly provided with guide grooves, and the guide protrusions on the jacket 1 can be inserted along the guide grooves on the middle jacket 2 .
中套2的中空腔体21的开口端24位于中套2的向内插入端，内衬3由该开口端24插入中套2内，从而将放置有探测器4的内衬3完全封闭。中套2的开口端24侧边设有一段纵向开口槽25，内衬3上与该开口槽25对应处设有凸台34嵌设于该开口槽25内。当欲取出完全套合于中套2内的内衬3时，向外推动该凸台34，使内衬3的一端露出于中套2的开口端24，即可将其拔出。The open end 24 of the hollow cavity 21 of the middle sleeve 2 is located at the inward insertion end of the middle sleeve 2, and the inner liner 3 is inserted into the middle sleeve 2 through the open end 24, thereby completely sealing the inner liner 3 on which the detector 4 is placed. A section of longitudinal opening groove 25 is provided on the side of the opening end 24 of the middle sleeve 2 , and a boss 34 is provided on the lining 3 corresponding to the opening groove 25 to be embedded in the opening groove 25 . When wanting to take out the inner liner 3 that fits completely in the middle cover 2, push the boss 34 outwards so that one end of the inner liner 3 is exposed to the open end 24 of the middle cover 2, and then it can be pulled out.
中套2的侧边也设有一凸台26嵌设于外套1侧边的一开口槽中，本实施例中，该凸台26设于中套2的导向凸条23同侧，并嵌设于外套1上的导向槽13内。推动该凸台26，亦可方便地将中套2从外套1内拔出。The side of the middle sleeve 2 is also provided with a boss 26 embedded in an open groove on the side of the jacket 1. In the guide groove 13 on the jacket 1. By pushing the boss 26, the middle sleeve 2 can also be pulled out from the outer sleeve 1 conveniently.
外套1的外表面设有凹槽14，该凹槽14内放置的补偿片，该凹槽14的位置于其内设置的内衬3上的其中一组凹槽相对应。当辐射源照射时，该补偿片可遮挡其中一组探测器，而对另一组进行直接的照射，最后于测量时将两种不同的探测器进行比较，可得出极为精确的测量值。The outer surface of the jacket 1 is provided with a groove 14, and the compensation sheet is placed in the groove 14, and the position of the groove 14 is corresponding to one of the grooves on the inner liner 3 provided therein. When the radiation source is irradiated, the compensation sheet can block one of the detectors and directly illuminate the other group, and finally compare the two different detectors during measurement to obtain extremely accurate measurement values.
本实用新型于外套1上配设有一卡式结构15，利用该卡式结构15将其配戴于人体上。The utility model is equipped with a clip structure 15 on the coat 1, and the clip structure 15 is used to wear it on the human body.
本实用新型可用于监测深部个人剂量当量和浅表个人剂量当量，以照射量进行定度，监测结果用剂量当量表示，对该当量值进行评价，可了解辐射类型及能量。The utility model can be used to monitor the deep personal dose equivalent and the superficial personal dose equivalent, calibrated by the irradiation amount, the monitoring result is expressed by the dose equivalent, and the radiation type and energy can be understood by evaluating the equivalent value.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200207 CN2369254Y (en) | 1999-01-06 | 1999-01-06 | Infrared personal meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200207 CN2369254Y (en) | 1999-01-06 | 1999-01-06 | Infrared personal meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2369254Y true CN2369254Y (en) | 2000-03-15 |
Family
ID=33996236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99200207 Expired - Fee Related CN2369254Y (en) | 1999-01-06 | 1999-01-06 | Infrared personal meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2369254Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101595397B (en) * | 2007-01-23 | 2012-02-01 | 精工精密株式会社 | dosimeter container |
| CN101595398B (en) * | 2007-01-23 | 2012-03-07 | 精工精密株式会社 | Dosimeter housing |
| CN102928399A (en) * | 2011-08-09 | 2013-02-13 | 上海原子科兴药业有限公司 | Improved thermoluminescence measuring device |
| CN103096975A (en) * | 2010-09-09 | 2013-05-08 | 皇家飞利浦电子股份有限公司 | A dosimeter, therapeutic apparatus, and computer program product for measuring radiation dosage to a subject during magnetic resonance imaging |
| CN103424764A (en) * | 2013-07-29 | 2013-12-04 | 中国原子能科学研究院 | Measuring device for dose distribution of ray radiation field |
| CN110354403A (en) * | 2016-12-07 | 2019-10-22 | 上海交通大学医学院附属第九人民医院 | Radiopharmaceutical agent amount detector |
-
1999
- 1999-01-06 CN CN 99200207 patent/CN2369254Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101595397B (en) * | 2007-01-23 | 2012-02-01 | 精工精密株式会社 | dosimeter container |
| CN101595398B (en) * | 2007-01-23 | 2012-03-07 | 精工精密株式会社 | Dosimeter housing |
| CN103096975A (en) * | 2010-09-09 | 2013-05-08 | 皇家飞利浦电子股份有限公司 | A dosimeter, therapeutic apparatus, and computer program product for measuring radiation dosage to a subject during magnetic resonance imaging |
| US9297906B2 (en) | 2010-09-09 | 2016-03-29 | Koninklijke Philips N.V. | Dosimeter, therapeutic apparatus, and computer program product for measuring radiation dosage to a subject during magnetic resonance imaging |
| CN103096975B (en) * | 2010-09-09 | 2016-10-26 | 皇家飞利浦电子股份有限公司 | Dosimeter, treatment device and computer system for measuring radiation dose to a subject during magnetic resonance imaging |
| CN102928399A (en) * | 2011-08-09 | 2013-02-13 | 上海原子科兴药业有限公司 | Improved thermoluminescence measuring device |
| CN103424764A (en) * | 2013-07-29 | 2013-12-04 | 中国原子能科学研究院 | Measuring device for dose distribution of ray radiation field |
| CN103424764B (en) * | 2013-07-29 | 2015-06-17 | 中国原子能科学研究院 | Measuring device for dose distribution of ray radiation field |
| CN110354403A (en) * | 2016-12-07 | 2019-10-22 | 上海交通大学医学院附属第九人民医院 | Radiopharmaceutical agent amount detector |
| CN110354403B (en) * | 2016-12-07 | 2021-09-17 | 上海交通大学医学院附属第九人民医院 | Radioactive dose detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2369254Y (en) | Infrared personal meter | |
| CA2194854A1 (en) | Casing Joint Detector | |
| EP0021081A3 (en) | Passive dosimeter for the detection of radon and/or thoron and their daughters | |
| US20140270623A1 (en) | Capillary action fiber sensor | |
| Mazur et al. | Measurements of radon concentration in soil gas by CR-39 detectors | |
| CN213606300U (en) | A portable skin moisture detector | |
| JPH02206792A (en) | Housing device for radiation detector | |
| US6415672B1 (en) | Industrial diagnostic gauges for reading in no light and low light conditions and methods of reading same | |
| US6516678B2 (en) | Industrial diagnostic gauge indicator insert and industrial diagnostic gauges having same | |
| US6744055B2 (en) | Miniature personal and area radon and thoron monitor | |
| US20020121150A1 (en) | Methods of reading and manufacturing industrial diagnostic gauges for reading in no light and low light conditions | |
| CN222145238U (en) | A αβ surface contamination measurement bracket | |
| CN210922588U (en) | Portable tilt angle sensor | |
| CN217112737U (en) | Dosage meter for button type radiation dosage monitoring | |
| Koo et al. | Deposition fractions of 218Po in diffusion chambers | |
| US3491454A (en) | Level vial and method of sealing | |
| CN208888377U (en) | A kind of simple radon gas and thorium gas detector | |
| CN222438835U (en) | An outdoor cost measuring instrument | |
| AU4953285A (en) | Device and method for determining hose size and hose fitting style and size | |
| CN217845318U (en) | Multi-probe passive nucleon charge level indicator | |
| CN220367266U (en) | Indoor harmful gas's detector | |
| CN120468914A (en) | A portable radiation protection monitoring device | |
| CN213022054U (en) | Variable capacitance type pressure sensor | |
| CN214796949U (en) | Arc-shaped insulating sleeve | |
| CN218181098U (en) | Calibration box for acquiring infrared measurement data and calibrating distance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |