CN204945386U - Eye lens personal dosimeter - Google Patents
Eye lens personal dosimeter Download PDFInfo
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- CN204945386U CN204945386U CN201520584632.7U CN201520584632U CN204945386U CN 204945386 U CN204945386 U CN 204945386U CN 201520584632 U CN201520584632 U CN 201520584632U CN 204945386 U CN204945386 U CN 204945386U
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Abstract
The utility model relates to a kind of eye lens personal dosimeter, is specifically related to a kind of quantimeter of the eye lens dosage measurement for being subject to ionization radiation irradiation personnel.Described quantimeter comprises: plastic feet, internal layer block, outer block and dosage sheet; Described plastic feet has headband via hole and groove, described dosage sheet is arranged in described groove; Described internal layer block is connected by draw-in groove with between groove, and described skin block is removably mounted on internal layer block outside.The utility model can carry out the measurement of bore hole situation and the eye lens dosage under wearing safety goggles situation, the utility model structurally, measure amount on creative design, be applicable to the eye lens dosage measurement of the occupational staff in various radiation work place.
Description
Technical field
The utility model relates to a kind of eye lens personal dosimeter, is specifically related to a kind of quantimeter of the eye lens dosage measurement for being subject to ionization radiation irradiation personnel.The utility model belongs to radiation proof personal dose monitoring technical field, is exclusively used in the monitoring of a crystal of human eye dosage.
Background technology
Because human body eye lens is under the irradiation being subject to larger dose, may cataract being there is, needing by guaranteeing that to the monitoring of eye lens dosage the dosage suffered by human body eye lens is unlikely too high.When monitoring eye lens dosage, ICRU recommends directional dose equivalent H'(3, Ω) and personal dose equivalent H
p(3).But " directional dose equivalent H'(3, Ω) and personal dose equivalent H
p(3) be seldom use in the middle of reality, existing measurement instrument also seldom can have measures this tittle " (see ICRP2007 recommendation B166 bar).At IAEA in " international ionising radiation and the safe basic security standard of radiation source " of publication in 1996, for staff, the dose limit of eye lens is defined as a year equivalent dose 150mSv.Under this limit value, generally, with H
pand H (0.07)
p(10), when corresponding evaluation amount can not exceed limit value, eye lens dosage also can not exceed limit value, and for H
pand H (0.07)
p(10) measuring equipment is common, and this pays little attention to the monitoring of eye lens dosage with regard to causing, the actual monitoring seldom carrying out eye lens dosage.
In September, 2011, IAEA has issued new BSS standard, and to be adjusted in continuous 5 years from annual 150mSv by the year equivalent dose limit value of eye lens dosage and to be no more than 100mSv, and any single time is no more than 50mSv, its value reduces close to a magnitude.This is taken seriously the monitoring of eye lens dosage with regard to making, and " generally, with H
pand H (0.07)
p(10), when corresponding evaluation amount can not exceed limit value, eye lens dosage also can not exceed limit value " this condition also no longer sets up.But carry out the monitoring of eye lens dosage according to the method in past, and measure directional dose equivalent H'(3, Ω) and personal dose equivalent H
p(3) some difficulties, are then faced.Not only seldom can have measurement H'(3, Ω now due to aforementioned) and H
p(3) instrument, even if there are these instruments, also faces some problems.During as carried out X or gamma-ray measurement, owing to never having any publication or document to the X or gamma-rays dose equivalent H'(3, the Ω towards periphery that appear unit fluence) translation data, H'(3, Ω) scale be difficult to carry out.For the X of unit fluence or gamma-rays to personal dose equivalent H
p(3) translation data, some documents once gave the result of calculating, but ICRP, ICRU and IAEA never formally adopted these data, different experiments room may adopt different translation data, make the measurement result of each laboratory monitoring there is no comparability, and the accuracy of measurement result can not be ensured.Eye lens dosage measurement should be based upon that the world extensively adopts and have in the technical foundation of comparability between each laboratory, and H'(3, Ω) and H
p(3) although be the most suitable monitoring variable for evaluating eye lens dosage, H is measured at present
p(3) technology does not develop into the technology extensively adopted by each laboratory at present.
In this context, IAEA and 2013 has issued TECDOCNo.1731 literary composition " execution of eye lens dose limit new in professional radiation protection " year Dec.This file gives requirement and the method for new eye lens dose monitoring.
According to IAEA-TECDOCNo.1731 literary composition, eye lens dose monitoring using dosage meter and measuring amount as follows:
The quantimeter that table one eye lens dose monitoring uses and measuring amount
In dissimilar radiation field, the monitoring method namely in neutron, photon and β radiation field is respectively as shown in table two-Biao four:
Table two eye lens neutron dose monitoring method
Table three eye lens photon doses monitoring method
Table four eye lens β dose monitoring method
According to IAEA-TECDOCNo.1731 literary composition, need under different situations to adopt different quantimeters, and be no longer that monitoring eye lens dosage just must measure H
p(3), but according to different occasions select H
pand/or H (0.07)
pand/or H (3)
p(10) measure.Due in the market be usually worn on chest, for H for the quantimeter measuring Hp (10)
p(0.07) quantimeter is worn on finger or wrist usually, and the design of existing quantimeter also adapts with its wearing position.In addition, No. IAEA-TECDOCNo.1731 literary composition requires when wearing safety goggles, also measure the dosage below safety goggles, otherwise can cause seriously over-evaluating of eye lens dosage, the measurement of the eye lens dosage below glasses do not considered by existing quantimeter yet.
Namely this utility model is under above-mentioned background, according to IAEA-TECDOCNo.1731 literary composition, devises a set of quantimeter being exclusively used in eye lens dosage measurement newly.
Utility model content
The purpose of this utility model is the eye lens dose monitoring method that the TECDOCNo.1731 literary composition " execution of eye lens dose limit new in professional radiation protection " issued in Dec, 2013 according to International Atomic Energy Agency provides, and measures exposed individual's eye lens dosage.
The utility model provides a kind of eye lens personal dosimeter, and described quantimeter comprises: plastic feet, internal layer block, outer block and dosage sheet; Described plastic feet has headband via hole and groove, described dosage sheet is arranged in described groove; Described internal layer block is connected by draw-in groove with between groove, and described skin block is removably mounted on internal layer block outside.
Further, eye lens personal dosimeter as above, described groove is three, and is provided with one or more dosage sheet in each groove.
Further, eye lens personal dosimeter as above, described internal layer block comprises three classes: In-0.07 class, In-3 class, In-10 class.
Further, eye lens personal dosimeter as above, the material of described In-0.07 class block is MyLar film, and the thickness of described film need meet following formula:
In formula, D
thinfor described MyLar film thickness, D
dosage sheetfor described dosage sheet thickness.
Further, eye lens personal dosimeter as above, the material of described In-3 class block is ABS plastic, and the thickness of described In-3 class block need meet following formula:
In formula, D
cap rockfor the thickness of the cap rock of block be made up of described ABS plastic, D
dosage sheetfor described dosage sheet thickness.
Further, eye lens personal dosimeter as above, the material of described In-10 class block is ABS plastic, and the thickness of described In-10 class block need meet following formula:
In formula, D
cap rockfor the thickness of the cap rock of block be made up of described ABS plastic, D
dosage sheetfor described dosage sheet thickness.
Further, eye lens personal dosimeter as above, described skin block is metal or the plastic materials such as stainless steel, lead, tungsten.
Further, eye lens personal dosimeter as above, when the material of skin block is stainless steel, the lead equivalent thickness of X, γ safety goggles that its lead equivalent thickness should be worn with personnel is equal; When the material of skin block is plastics, the thickness of the β safety goggles that its thickness should be worn with personnel is suitable.
Further, eye lens personal dosimeter as above, described skin block is taken off separately and is not installed.
Further, eye lens personal dosimeter as above, comprises headband further, and described headband passes described headband via hole thus makes described quantimeter to be worn on head.
The utility model can carry out the measurement of bore hole situation and the eye lens dosage under wearing safety goggles situation, the utility model structurally, measure amount on creative design, be applicable to the eye lens dosage measurement of the occupational staff in various radiation work place.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model eye lens personal dosimeter.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in figure (1), this Novel ocular crystal dosimeter is formed primarily of plastic feet 1, internal layer block 2.1,2.2,2.3, outer block 3.1,3.2,3.3 and dosage sheet 4.Plastic feet 1 have headband via hole 5 and groove 6.Groove on plastic feet 1 has three groups (Fig. 1 is the situation that one group of groove only can place a dosage sheet, also can be designed to place multiple quantimeter in one group of groove), often organizes in groove and is all placed with dosage sheet 4.A groove is installed corresponding internal layer block and can be used for H
por H (0.07)
por H (3)
p(10) measurement.Internal layer block is connected by draw-in groove with between groove, turns clockwise and can clamp.
According to IAEA-TECDOCNO.1731 literary composition, need under different occasion to adopt different quantimeters, and need to select H according to different occasions
p(0.07), H
por H (3)
p(10) two kinds of combinations or are wherein measured.Therefore internal layer block is designed with three types, is In-0.07 class, In-3 class and In-10 class respectively.When In-0.07 class block (in Fig. 1 2.3) is installed, can be used for H
p(0.07) measurement; When In-3 class block (in Fig. 1 2.2) is installed, can be used for H
p(3) measurement; When In-10 class block (in Fig. 1 2.1) is installed, can be used for H
p(10) measurement.Specifically select which kind of measuring amount under what circumstances, namely select H
p(0.07), H
por H (3)
p(10) still two kinds of combinations are wherein measured, and should carry out according to IAEA-TECDOCNO.1731 literary composition " execution of eye lens dose limit new in professional radiation protection ".In the utility model, table one-table four also lists the regulation of IAEA-TECDOCNO.1731 literary composition to measuring amount and measuring method.
When personnel wear safety goggles, need to measure simultaneously above glasses with glasses below dosage.To the dosage measurement above glasses, be equal to the method in epimere.For the dosage measurement below glasses, need after internal layer block added a cover by quantimeter, then add a cover outer block.Material, the thickness of outer block should carry out according to the content in utility model content.
Such as, when personnel work under X radiation field, and when to have worn lead equivalent thickness be the safety goggles of 0.75mm, should select to add a cover stainless steel block.As calculated, be 7.64g/cm as have employed density
3stainless steel, then when actual (real) thickness gets 1.1mm, be then about the lead equivalent thickness of 0.75mm.Depth of cover now can be selected to be that the stainless steel block of 1.1mm is as outer block.
Stainless steel block also can use to be made up of lead, tungsten or other metal materials.But notably, plumbous to wear in process and may have the contact of long period with human body, the Heavy Metal Pollution to human body can be caused; Tungsten then has expensive feature.
Sometimes 3 groups of grooves may use not.As need be measured the H with below above glasses simultaneously
pand H (3)
p(10), then four groups of grooves are at least needed.Now can be connected in series two or more quantimeter to use on headband.Groove can be designed to only can install a dosage sheet in one group, also can be designed to install multiple dosage sheet in one group, and the legend in the utility model all have employed only can install a dosage sheet.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if belong within the scope of the utility model claim and equivalent technology thereof to these amendments of the present utility model and modification, then the utility model is also intended to comprise these change and modification.
Claims (10)
1. an eye lens personal dosimeter, is characterized in that:
Described quantimeter comprises: plastic feet, internal layer block, outer block and dosage sheet; Described plastic feet has headband via hole and groove, described dosage sheet is arranged in described groove; Described internal layer block is connected by draw-in groove with between groove, and described skin block is removably mounted on internal layer block outside.
2. eye lens personal dosimeter as claimed in claim 1, is characterized in that: described groove is three, and is provided with one or more dosage sheet in each groove.
3. eye lens personal dosimeter as claimed in claim 1, is characterized in that:
Described internal layer block is the one in following three classes: In-0.07 class, In-3 class and In-10 class.
4. eye lens personal dosimeter as claimed in claim 3, is characterized in that:
The material of described In-0.07 class block is MyLar film, and the thickness of described film need meet following formula:
In formula, D
thinfor described MyLar film thickness, D
dosage sheetfor described dosage sheet thickness.
5. eye lens personal dosimeter as claimed in claim 3, is characterized in that:
The material of described In-3 class block is ABS plastic, and the thickness of described In-3 class block need meet following formula:
In formula, D
cap rockfor the thickness of the cap rock of block be made up of described ABS plastic, D
dosage sheetfor described dosage sheet thickness.
6. eye lens personal dosimeter as claimed in claim 3, is characterized in that:
The material of described In-10 class block is ABS plastic, and the thickness of described In-10 class block need meet following formula:
In formula, D
cap rockfor the thickness of the cap rock of block be made up of described ABS plastic, D
dosage sheetfor described dosage sheet thickness.
7. eye lens personal dosimeter as claimed in claim 1, is characterized in that:
Described skin block is metal or the plastic materials such as stainless steel, lead, tungsten.
8. eye lens personal dosimeter as claimed in claim 7, is characterized in that:
When the material of skin block is stainless steel, the lead equivalent thickness of X, γ safety goggles that its lead equivalent thickness should be worn with personnel is equal; When the material of skin block is plastics, the thickness of the β safety goggles that its thickness should be worn with personnel is suitable.
9. the eye lens personal dosimeter as described in claim 1-8 any one, is characterized in that:
Described skin block can be taken off separately and not install.
10. the eye lens personal dosimeter as described in claim 1-8 any one, is characterized in that:
Quantimeter comprises headband further, and described headband passes described headband via hole thus makes described quantimeter to be worn on head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520584632.7U CN204945386U (en) | 2015-08-05 | 2015-08-05 | Eye lens personal dosimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520584632.7U CN204945386U (en) | 2015-08-05 | 2015-08-05 | Eye lens personal dosimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945386U true CN204945386U (en) | 2016-01-06 |
Family
ID=55012798
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|---|---|---|---|
| CN201520584632.7U Active CN204945386U (en) | 2015-08-05 | 2015-08-05 | Eye lens personal dosimeter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929442A (en) * | 2016-04-26 | 2016-09-07 | 中国疾病预防控制中心辐射防护与核安全医学所 | Individual dose equivalent meter calibration new method |
| CN108572385A (en) * | 2017-03-09 | 2018-09-25 | 中国辐射防护研究院 | A kind of scintillation detector measuring * ' (3) and the detector including it |
| CN109839653A (en) * | 2017-11-29 | 2019-06-04 | 中国辐射防护研究院 | A kind of a crystal of human eye health-monitoring installation and measurement method |
| CN110058289A (en) * | 2019-03-11 | 2019-07-26 | 中国辐射防护研究院 | A kind of finger ring band for hand radiation dose monitoring |
| CN114428262A (en) * | 2021-12-16 | 2022-05-03 | 中国原子能科学研究院 | Novel eye lens dosage box |
-
2015
- 2015-08-05 CN CN201520584632.7U patent/CN204945386U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105929442A (en) * | 2016-04-26 | 2016-09-07 | 中国疾病预防控制中心辐射防护与核安全医学所 | Individual dose equivalent meter calibration new method |
| CN108572385A (en) * | 2017-03-09 | 2018-09-25 | 中国辐射防护研究院 | A kind of scintillation detector measuring * ' (3) and the detector including it |
| CN109839653A (en) * | 2017-11-29 | 2019-06-04 | 中国辐射防护研究院 | A kind of a crystal of human eye health-monitoring installation and measurement method |
| CN110058289A (en) * | 2019-03-11 | 2019-07-26 | 中国辐射防护研究院 | A kind of finger ring band for hand radiation dose monitoring |
| CN110058289B (en) * | 2019-03-11 | 2022-04-19 | 中国辐射防护研究院 | Ring belt for monitoring hand radiation dose |
| CN114428262A (en) * | 2021-12-16 | 2022-05-03 | 中国原子能科学研究院 | Novel eye lens dosage box |
| CN114428262B (en) * | 2021-12-16 | 2024-09-06 | 中国原子能科学研究院 | Novel eye lens dosage box |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |