CN203479428U - Thin graphene sheet array type calorimeter - Google Patents
Thin graphene sheet array type calorimeter Download PDFInfo
- Publication number
- CN203479428U CN203479428U CN201320567819.7U CN201320567819U CN203479428U CN 203479428 U CN203479428 U CN 203479428U CN 201320567819 U CN201320567819 U CN 201320567819U CN 203479428 U CN203479428 U CN 203479428U
- Authority
- CN
- China
- Prior art keywords
- graphene
- electron beam
- calorimeter
- thin
- graphite
- 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
Images
Abstract
The utility mode relates to a thin graphene sheet array type calorimeter that is used for measurement of intense electron beam energy deposition depth distribution and is made of thin graphene sheets with thickness of dozens of micrometers. A polytetrafluoroethylene ring as a thermal insulation material is arranged between each two adjacent thin graphene sheets; and thermocouple wires are pressed between the thin graphene sheets and the polytetrafluoroethylene rings and are used for measuring the temperatures of the thin graphene sheets. The other ends of the thermocouple wires are connected with a multi-path high-speed acquisition card by sampling resistors; and signals are introduced into a computer system by the multi-path high-speed acquisition card to carry out data recording. According to the scheme, the calorimeter employs the graphene as the material for the thin sheet array, so that not only the advantages of utilization of graphene as the material for the thin sheet array type calorimeter can be kept but also the problem that the mechanical strength of the thin sheet type array is not high can be solved. The provided calorimeter is suitable for measurement of intense electron beam energy deposition depth distribution.
Description
Technical field
The utility model relates to a kind of can realize strong current electron beam and matter interaction time, and the graphene platelet array calorimeter that the depth profile that electron energy deposits in material is measured, is applied to electron beam and matter interaction research field.
Background technology
When strong current electron beam and matter interaction, it is an important parameter that its energy deposits depth profile in material, in order to obtain this parameter, often adopts wafer array formula calorimeter to measure.Its principle is: the wafer array in electronics and calorimeter interacts, energy deposition is in each thin slice, be converted into heat energy, by temperature measuring equipments such as thermopairs, the temperature of thin slice is recorded over time, the anti-energy being deposited in thin slice that pushes away, realizes the measurement of strong current electron beam energy deposition depth profile.In various particle beam accelerators, this method is widely used.
In < < electron beam absorbed calorimeter > > mono-literary composition of showing at Chen Kesheng etc. relevant for the introduction of Multi-layer graphite calorimeter, the result that the apparatus structure Ji atomic energy research institute of simply having introduced Multi-layer graphite calorimeter measures about 14MeV e beam energy deposition depth profile, but it is not introduced and selects graphite as the reason of wafer array calorimeter material.
In fact, the material as wafer array formula calorimeter preferably meets some requirement:
(1) in order to ensure thin slice itself, do not make the power generation of electron beam significantly change, should guarantee that thin slice effective range relative and electronics is enough thin.
(2) because electronics is beaten and is made thin slice temperature raise rapidly on sheeting, therefore require the fusing point of material to want high, thermal expansivity is little, and thermal conductivity is good.
(3) electron beam and metal material interaction meeting are because large energy is lost in bremsstrahlung, and the energy being deposited in material is just affected, and therefore also will avoid the material that uses atomic number high.
(4) strong current electron beam and sheeting interaction are comparatively strong, can cause damage to sheet surface, even break and can not get measurement result, so the mechanical property of material will be got well.
Select graphite can well meet as first three condition of material of thin slice calorimeter, but its mechanical property is restricted its application, the graphite that is positioned at front end during measurement should be enough thin, there is again good physical strength, become and select graphite as an implacable contradiction of thin slice calorimeter material.
Summary of the invention
For solve thin slice calorimeter material to have concurrently enough thin, fusing point is high, thermal expansivity is little, thermal conductivity is good, atomic number is low, the demand of good mechanical property, the utility model provides a kind of graphene platelet array calorimeter of measuring for strong current electron beam energy deposition depth profile.
Technical solution of the present utility model is:
1, a graphene platelet array calorimeter, comprises calorimetric unit and is successively set on collimation unit, heat absorbing units and the absorptive unit on electron beam incident axis; It is characterized in that:
Described heat absorbing units comprises multi-layer graphene thin slice, is arranged on the polytetrafluoroethylene ring between two adjacent graphene platelets;
Described collimation unit comprises graphite collimating aperture;
Described absorptive unit is graphite absorber or Graphene absorber;
Sampling resistor, multipath high-speed capture card, computer system that described calorimetric unit comprises the thermocouple wire that is arranged between graphene platelet and polytetrafluoroethylene ring, connects one to one with thermocouple wire;
The internal diameter of described graphite collimating aperture is a bit larger tham the diameter of electron beam;
Described thermocouple wire is vertical with electron beam approach axis;
The thickness of described graphene platelet is 10-90 micron.
Advantage of the present utility model:
The utility model graphene platelet array calorimeter adopts Graphene as the material of wafer array, both retained the advantage of graphite as wafer array formula calorimeter material, also solved the not high problem of wafer array physical strength, be applicable to strong current electron beam energy deposition depth profile and measure.
Accompanying drawing explanation
Fig. 1 is vertical section structure figure of the present utility model:
In figure: 1-graphene platelet, 2-polytetrafluoroethylene ring, 3-thermocouple wire, 4-sampling resistor, 5-multipath high-speed capture card, 6-computer system, 7-graphite collimating aperture, 8-graphite absorber.
Embodiment
The graphene platelet array calorimeter that the utility model is measured for strong current electron beam energy deposition depth profile, material is the graphene platelet of tens microns, between two adjacent graphene platelets, adopt polytetrafluoroethylene ring as heat-barrier material, between graphene platelet and polytetrafluoroethylene ring, be pressed with thermocouple wire, for measuring the temperature of graphene platelet.Other one end of thermocouple wire is connected with multipath high-speed capture card by a sampling resistor, by multipath high-speed capture card, signal leading computer system is carried out to data recording.While being used for measuring, electron beam incides on graphene platelet by circular graphite collimating aperture, and the size of graphite collimating aperture is a bit larger tham the diameter of electron beam, and the electronics not absorbed by graphene platelet is absorbed the graphite absorber by rear end.
Graphite collimating aperture, polytetrafluoroethylene ring, graphene platelet and graphite absorber are concentric setting, axis is along electron beam approach axis.Thermocouple wire is as vertical in electron beam approach axis.
Embodiment:
Between two adjacent graphene platelets 1, adopt polytetrafluoroethylene ring 2 as heat-barrier material, between graphene platelet and polytetrafluoroethylene ring, be pressed with thermocouple wire 3, for measuring the temperature of graphene platelet.Other one end of thermocouple wire 3 is connected with multipath high-speed capture card 5 by a sampling resistor 4, by multipath high-speed capture card 5, signal leading computer system 6 is carried out to data recording.While being used for measuring, electron beam incides on graphene platelet 1 by graphite collimating aperture 7, and the electronics that is not absorbed measurement absorbs the graphite absorber by rear end 8.
Claims (1)
1. a graphene platelet array calorimeter, comprises calorimetric unit and is successively set on collimation unit, heat absorbing units and the absorptive unit on electron beam incident axis; It is characterized in that:
Described heat absorbing units comprises multi-layer graphene thin slice, is arranged on the polytetrafluoroethylene ring between two adjacent graphene platelets;
Described collimation unit comprises graphite collimating aperture;
Described absorptive unit is graphite absorber or Graphene absorber;
Sampling resistor, multipath high-speed capture card, computer system that described calorimetric unit comprises the thermocouple wire that is arranged between graphene platelet and polytetrafluoroethylene ring, connects one to one with thermocouple wire;
The internal diameter of described graphite collimating aperture is a bit larger tham the diameter of electron beam;
Described thermocouple wire is vertical with electron beam approach axis;
The thickness of described graphene platelet is 10-90 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567819.7U CN203479428U (en) | 2013-09-12 | 2013-09-12 | Thin graphene sheet array type calorimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567819.7U CN203479428U (en) | 2013-09-12 | 2013-09-12 | Thin graphene sheet array type calorimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479428U true CN203479428U (en) | 2014-03-12 |
Family
ID=50227741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320567819.7U Expired - Fee Related CN203479428U (en) | 2013-09-12 | 2013-09-12 | Thin graphene sheet array type calorimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374486A (en) * | 2014-11-13 | 2015-02-25 | 中国科学院重庆绿色智能技术研究院 | Flexible temperature sensor based on graphene nanometer wall and preparing method thereof |
| CN105044764A (en) * | 2015-08-31 | 2015-11-11 | 中广核达胜加速器技术有限公司 | Electron accelerator beam dynamic acquisition device |
-
2013
- 2013-09-12 CN CN201320567819.7U patent/CN203479428U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374486A (en) * | 2014-11-13 | 2015-02-25 | 中国科学院重庆绿色智能技术研究院 | Flexible temperature sensor based on graphene nanometer wall and preparing method thereof |
| CN105044764A (en) * | 2015-08-31 | 2015-11-11 | 中广核达胜加速器技术有限公司 | Electron accelerator beam dynamic acquisition device |
| CN105044764B (en) * | 2015-08-31 | 2017-11-10 | 中广核达胜加速器技术有限公司 | A kind of electron accelerator line dynamic acquisition device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bahiraei et al. | Experimental and numerical investigation on the performance of carbon-based nanoenhanced phase change materials for thermal management applications | |
| CN102279204B (en) | Detection method for thermal conductivity and thermal diffusivity of anisotropic material | |
| Zhao et al. | The thermal conductivity of molten NaNO3, KNO3, and their mixtures | |
| CN208334251U (en) | A kind of heat dissipation index measurement device | |
| CN203479428U (en) | Thin graphene sheet array type calorimeter | |
| CN103063702B (en) | Method and device for testing laser absorptivity of powdery material | |
| CN102879129A (en) | Heat flux density measurement device and method | |
| CN109781769A (en) | A kind of device and measurement method measuring graphene film thermo electric material Electrothermal Properties | |
| Xu et al. | Lithium doped polyethylene-glycol-based thermal interface pastes for high thermal contact conductance | |
| Barhemmati-Rajab et al. | Investigation into boron nitride nanoparticle effects on thermal properties of calcium chloride hexahydrate (CaCl2· 6H2O) as a phase change material | |
| Noghrehabadi et al. | An experimental investigation of performance of a 3-D solar conical collector at different flow rates | |
| Fan et al. | Enhanced heat dissipation in graphite-silver-polyimide structure for electronic cooling | |
| Tingsuwatit et al. | Boron nitride neutron detector with the ability for detecting both thermal and fast neutrons | |
| CN110429866A (en) | A kind of superficial underground heat temperature difference electricity generation device | |
| CN103713013A (en) | Device for testing axial heat conduction coefficient of tubular material | |
| CN110361415A (en) | A kind of heat dissipation index measurement and dynamic compatibilization method | |
| CN104359574A (en) | Fuel cell internal temperature-heat flux synchronous measurement sensor | |
| CN204167442U (en) | Lithium battery group temperature monitoring system | |
| CN103674337B (en) | A kind of heat flux sensor for explosion field | |
| CN209446505U (en) | A kind of measuring device for graphene film thermo electric material Electrothermal Properties | |
| CN202649474U (en) | Probe used for monitoring electronic accelerator beam intensity in real time | |
| CN103353466A (en) | Measuring method for heat flux density of solid metal | |
| Xie et al. | Performance enhancement of phase change thermal energy storage unit using fin and copper foam | |
| CN204476396U (en) | Oil well is even fine with test tube line | |
| CN209979083U (en) | Temperature layering detection device of energy storage tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |