CN204740350U - Analysor of many balls neutron spectrometer and many balls neutron spectrometer - Google Patents
Analysor of many balls neutron spectrometer and many balls neutron spectrometer Download PDFInfo
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- CN204740350U CN204740350U CN201520052004.4U CN201520052004U CN204740350U CN 204740350 U CN204740350 U CN 204740350U CN 201520052004 U CN201520052004 U CN 201520052004U CN 204740350 U CN204740350 U CN 204740350U
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Abstract
The utility model provides a many balls neutron spectrometer, include: the moderating sphere, the moderating sphere includes: a N concentric spherical shell, wherein, 1 radius to concentric spherical shell N of concentric spherical shell reduces in proper order, and the partly concentric spherical shell in work in unison spherical shell 1, concentric spherical shell N and remaining spherical shell of working in unison is the concentric spherical shell of metal for the concentric spherical shell of polyethylene, the remaining spherical shell of working in unison, and concentric spherical shell N has the accommodation hole, and N is more than or equal to 3, hot neutron detector, hot neutron detector set up in order to survey the thermal neutron in the accommodation hole. The utility model discloses many balls neutron spectrometer can measuring neutron energy scope from the thermal neutron to 10GeV, greatly expanded neutron energy's measuring range, simple structure, the range of application is wider. The utility model discloses the analysor of ball neutron spectrometer more than one kind has still been provided.
Description
Technical field
The utility model relates to neutron measurement technology field, particularly the analyzer of a kind of many balls neutron spectrometer and many balls neutron spectrometer.
Background technology
The measurement of neutron spectrum has very important application in fields such as neutronics, reactor, accelerator, radiation protection and astrophysicss, and neutron spectrum measurement method conventional at present comprises time-of-flight method, proton-recoil method, nuclear reaction etc.Due in some field as radiation protection needs the neutron spectrum scope measured very wide, so the detector commonly used at present for such demand is many balls neutron spectrometer.
Wherein, many balls neutron spectrometer is also known as Bonner spectrometer, it is made up of the different tygon moderating sphere of multiple radius and thermal neutron detector, and general thermal neutron detector is He-3 Spherical proportional counter or BF-3 proportional counter, and thermal neutron detector is placed on slow body centre of sphere place.Neutron can be detected by the thermal neutron detector being positioned at slow body centre of sphere place by after spherical polyethylene slow body slowing down, the slow body of different radii can become thermal neutron the moderation of neutrons of different-energy, thus the slow body of different radii has different Neutron energy responce.When thermal neutron detector is spherical He-3 proportional counter, can there is nuclear reaction with He-3 in thermal neutron:
3he+n → T+p+0.765MeV, deuterium and triton are that charged particle causes ionization in He-3 gas, after direct ratio amplifies, learnt record by Subsequent electronic.Namely say, according to the difference of different radii slow body to Neutron energy responce, measure the thermal neutron detector counting in multiple slow body, then can neutron spectrum be obtained in conjunction with neutron separating spectra program.
In correlation technique, the material of many balls neutron spectrometer slow body mostly is tygon, and the slow body of a whole set of spectrometer is also made up of the spherical polyethylene that radius is different.But, spectrometer in correlation technique configures the neutron energy that can measure and is generally no more than 100MeV, therefore the measurement for high-energy neutron is helpless, have much room for improvement, although also have at present, the assemblnig slow body spectrometer of single probe is proposed, but Measuring Time is longer, reduce measurement efficiency, fast not as the neutron spectrometer Measuring Time of multiple probe.
Utility model content
The utility model is intended to solve one of technical matters in above-mentioned correlation technique at least to a certain extent.
For this reason, an object of the present utility model is to propose a kind of energy enlarge measurement range, the simple many balls neutron spectrometer of structure.
Another object of the present utility model is the analyzer proposing a kind of many balls neutron spectrometer.
For achieving the above object, the utility model proposes a kind of many balls neutron spectrometer on the one hand, comprise: moderating sphere, described moderating sphere comprises: N number of concentric spherical shell, wherein, concentric spherical shell 1 reduces successively to the radius of concentric spherical shell N, the concentric spherical shell of a part in described concentric spherical shell 1, concentric spherical shell N and remaining concentric spherical shell is the concentric spherical shell of tygon, remaining concentric spherical shell is the concentric spherical shell of metal, described concentric spherical shell N has accommodation hole, and described N is more than or equal to 3, wherein, when described N equals 3, concentric spherical shell 2 is the concentric spherical shell of metal; And thermal neutron detector, described thermal neutron detector is arranged in described accommodation hole to detect thermal neutron.
According to the many balls neutron spectrometer that the utility model proposes, by increasing the concentric spherical shell of metal, realize the slow body adding containing metal interlayer, thus high-energy neutron can produce more low-energy neutron with metal generation nuclear reaction, many balls neutron spectrometer can measure neutron energy scope from thermal neutron to 10GeV, greatly extend the measurement range of neutron energy, structure is simple, and range of application is wider.
Further, described thermal neutron detector can be He-3 Spherical proportional counter or BF-3 proportional counter.
Further, the concentric spherical shell of described metal is the concentric spherical shell of metallic lead or the concentric spherical shell of metallic copper.
Further, to concentric spherical shell (N-1), at least one is the concentric spherical shell of described metal to concentric spherical shell 2.
The utility model proposes a kind of analyzer of many balls neutron spectrometer on the other hand, comprising: at least one above-mentioned many balls neutron spectrometer; At least one common many balls neutron spectrometer, wherein, the moderating sphere of described common many balls neutron spectrometer is tygon moderating sphere; And processor, described processor is connected with at least one common many balls neutron spectrometer described with at least one many balls neutron spectrometer described respectively, records the thermal neutron of described many balls neutron spectrometer and described common many balls neutron spectrometer detection and shows.
According to the analyzer of the many balls neutron spectrometer that the utility model proposes, by increasing the concentric spherical shell of metal, realize the slow body adding containing metal interlayer, thus high-energy neutron can produce more low-energy neutron with metal generation nuclear reaction, many balls neutron spectrometer can measure neutron energy scope from thermal neutron to 10GeV, greatly extend the measurement range of neutron energy, structure is simple, and range of application is wider.
The aspect that the utility model is additional and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the many balls neutron spectrometer according to the utility model embodiment;
Fig. 2 is the structural representation of low energy part in the spherical slow body according to the utility model embodiment;
Fig. 3 is the structural representation of high energy multilayer slow body in the spherical slow body according to the utility model embodiment;
Fig. 4 is low energy portion of energy response function in the many balls neutron spectrometer according to the utility model embodiment;
Fig. 5 is the schematic diagram of energetic portions energy response function in the many balls neutron spectrometer according to the utility model embodiment; And
Fig. 6 is the analyzer of the many balls neutron spectrometer according to the utility model embodiment.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
Describe the analyzer of many balls neutron spectrometer and the many balls neutron spectrometer proposed according to the utility model embodiment with reference to the accompanying drawings, describe the many balls neutron spectrometer proposed according to the utility model embodiment first with reference to the accompanying drawings.With reference to shown in Fig. 1, this many balls neutron spectrometer 10 comprises: moderating sphere 100 and thermal neutron detector 200.
Wherein, moderating sphere 100 comprises: N number of concentric spherical shell 101, wherein, concentric spherical shell 1 reduces successively to the radius of concentric spherical shell N, and the concentric spherical shell of a part in concentric spherical shell 1, concentric spherical shell N and remaining concentric spherical shell is the concentric spherical shell of tygon, remaining concentric spherical shell is the concentric spherical shell of metal, concentric spherical shell N has accommodation hole, and N is more than or equal to 3, wherein, when N equals 3, concentric spherical shell 2 is the concentric spherical shell of metal.Thermal neutron detector 200 is arranged in accommodation hole to detect thermal neutron.
Further, in an embodiment of the present utility model, thermal neutron detector can be He-3 Spherical proportional counter or BF-3 proportional counter.
Further, in an embodiment of the present utility model, the concentric spherical shell of metal can be the concentric spherical shell of metallic lead or the concentric spherical shell of metallic copper.
Further, in an embodiment of the present utility model, to concentric spherical shell (N-1), at least one is the concentric spherical shell of metal to concentric spherical shell 2.
In a specific embodiment of the present utility model, be made up of N number of concentric spherical shell 101 such as the spherical slow body of multiple different radii different materials and thermal neutron detector 200 such as He-3 Spherical proportional counter.Wherein, spherical slow body is divided into two parts, low energy part and energetic portions.In an embodiment of the present utility model, low energy part is made up of the spherical slow body of tygon that 6 concentric spherical shells of tygon are as different in radius, the material of this slow body is tygon, slow body is spherical and digs out a cylindrical cavity placement He-3 Spherical proportional counter along radial direction, and rest polythene material is filled; Energetic portions is made up of the slow body of 4 concentric spherical shells of metal as different materials, sandwich construction, this slow body structure is formed by two kinds of different combinations of materials, innermost layer be tygon ball, middle for metal spherical shell, outermost layer be tygon spherical shell, this three-decker ball with one heart and thermal neutron detector be placed in the tygon ball of innermost layer.Wherein, metal material can be plumbous or copper, and the tygon radius of a ball of 4 sandwich construction slow bodies, the thickness of metal spherical shell are different.The metal spherical shell that spherical shell structure is made up of two hemispherical Shells and the tygon spherical shell that outermost layer two hemispherical Shells form form.In addition, hemispherical Shell structure is detachable, thus 4 sandwich construction slow bodies are combinable, are not only confined to three layers of (tygon+metal+tygon) structure, as caning be assembled into tygon+lead+tygon+lead+poly five-layer structure.
Particularly, many balls neutron spectrometer 10 of the utility model embodiment is made up of two parts: the spherical slow body of tygon as different in a series of radius of the concentric spherical shell of multiple tygon (is equivalent to low energy part, with reference to shown in Fig. 2) and the concentric spherical shell of multiple metal as the Multi-layer spherical structure slow body (being equivalent to energetic portions, with reference to Fig. 3 shown) of containing metal interlayer.Wherein, with reference to shown in Fig. 2, low energy spherical polyethylene slow body digs a cylindrical cavity along radial direction and is used for placing thermal neutron detector 200, the same polythene material of rest is filled, the size of hole and position ensure that thermal neutron detector 200 is positioned at the centre of sphere of slow body, have identical response with the neutron meeting thermal neutron detector 200 pairs of all directions.Further, with reference to shown in Fig. 3, energetic portions slow body is made up of 4 Multi-layer spherical slow bodies by sandwich construction, and sandwich material can be copper or lead, and its concrete structure is: innermost layer is spherical polyethylene slow body, and thermal neutron detector 200 is positioned at this slow body; Middle layer is metal spherical shell, is made up of connects up at the hole digging same radius along nexine slow body hole direction simultaneously two hemispherical Shells, and the same metal filled guarantee spherical structure of rest; Similarly the outermost layer tygon of two hemispherical Shells forms a spherical shell slow body, has same hole and redundance tygon is filled.In addition, the slow body of four Multi-layer spherical structures can dismountable, and 4 Multi-layer spherical slow body radiuses can be coupled, the spherical shell that can add other multilayer slow bodies as three layers of spherical structure forms four layers, five layers spherical slow body knot, thus can increase the energy response structure of many balls neutron spectrometer.
Further, in an embodiment of the present utility model, with reference to shown in Fig. 4, Fig. 4 is low energy portion of energy response structure schematic diagram in many balls neutron spectrometer, wherein, curve 1 is the energy response function of bare ball, curve 2 is the energy response function of the spherical slow body of tygon of 5cm for radius, curve 3 is the energy response function of the spherical slow body of tygon of 6cm for radius, curve 4 is the energy response function of the spherical slow body of tygon of 8cm for radius, curve 5 is the energy response function of the spherical slow body of tygon of 10cm for radius, curve 6 is the energy response function of the spherical slow body of tygon of 12cm for radius, curve 7 is the energy response function of the spherical slow body of tygon of 15cm for radius.The utility model embodiment is by the different spherical slow body of tygon of a series of radius, thus the neutron meeting thermal neutron detector 200 pairs of all directions has identical corresponding.
Further, in an embodiment of the present utility model, with reference to shown in Fig. 5, Fig. 5 is energetic portions energy response structural representation in many balls neutron spectrometer, wherein, curve 1 is the response function of the Multi-layer spherical slow body of 5Cu8pe10 for metal sandwich, curve 2 is the response function of the Multi-layer spherical slow body of 5Pb6.5pe8 for metal sandwich, curve 3 is the response function of the Multi-layer spherical slow body of 5Pb8pe12 for metal sandwich, and curve 4 is the response function of the Multi-layer spherical slow body of 8Pb10pe15 for metal sandwich.The utility model embodiment is by the Multi-layer spherical structure slow body of containing metal interlayer, thus high-energy neutron can react with metal generation nuclear chemistry and produces more low-energy neutron, and measurement range is expanded in realization.It should be noted that, such as 5Cu8pe10 represents that internal layer is tygon, and the radius of a ball is 5cm, and middle layer is copper ball shell, and outermost layer radius is 8cm, and outermost layer is shot shell, and outermost layer radius is 10cm, in order to reduce redundancy, is not described in detail for similar expression.
According to the many balls neutron spectrometer that the utility model proposes, by increasing the concentric spherical shell of metal, realize the slow body adding containing metal interlayer, thus high-energy neutron can produce more low-energy neutron with metal generation nuclear reaction, many balls neutron spectrometer can measure neutron energy scope from thermal neutron to 10GeV, greatly extend the measurement range of neutron energy, simultaneously multilayer slow body disassembly and assembly can become the slow body of different structure, increase many balls slow body energy response structure, not only structure is simple, and range of application is wider.In addition, the structure that many balls neutron spectrometer of the utility model embodiment adopts multiple slow body, the structure of multiple probe compares single probe multilayer slow body greatly reduces Measuring Time, meets time dependent neutron spectrum measurement better.
Next describes the analyzer of the many balls neutron spectrometer proposed according to the utility model embodiment with reference to the accompanying drawings.With reference to shown in Fig. 6, this analyzer 20 comprises: at least one above-mentioned many balls neutron spectrometer 21, at least one common many balls neutron spectrometer 22 and processor 23.
Wherein, the moderating sphere of common many balls neutron spectrometer is tygon moderating sphere.Processor 23 is connected with the common many balls neutron spectrometer of at least one many balls neutron spectrometer and at least one respectively, and the power spectrum of processor 23 to the thermal neutron that many balls neutron spectrometer and common many balls neutron spectrometer detect records and show.
In an embodiment of the present utility model, many balls neutron spectrometer data acquisition system (DAS) of the analyzer of the utility model embodiment can be made up of 9 integrated passage nuclear electronics circuit, can gather the signal of 9 He-3 proportional counters simultaneously.Wherein, the signal of nuclear electronics circuit to He-3 proportional counter amplifies and n-γ screens, and is namely recorded the power spectrum of the thermal neutron that many balls neutron spectrometer and common many balls neutron spectrometer detect and shows simultaneously by processor as installed special software on computers to signal.
Particularly, in the analyzer 20 of the utility model embodiment, a whole set of many balls neutron spectrometer is made up of above-mentioned low energy, high energy slow body and relevant nuclear electronics, and nuclear electron circuit can be integrated into the data acquisition of 9 passages, high voltage supply and data communication apparatus.Wherein, this electronics can gather the output signal of 9 thermal neutron detectors simultaneously, and carries out n-γ examination, can be realized the communication of nuclear electron and computer by special software, the data of Real-time Collection is shown, stores.
Should be appreciated that each several part of the present utility model can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment when not departing from principle of the present utility model and aim, revising, replacing and modification in scope of the present utility model.
Claims (5)
1. the neutron spectrometer of ball more than, is characterized in that, comprising:
Moderating sphere, described moderating sphere comprises: N number of concentric spherical shell, wherein, concentric spherical shell 1 reduces successively to the radius of concentric spherical shell N, and the concentric spherical shell of a part in described concentric spherical shell 1, concentric spherical shell N and remaining concentric spherical shell is the concentric spherical shell of tygon, remaining concentric spherical shell is the concentric spherical shell of metal, described concentric spherical shell N has accommodation hole, and described N is more than or equal to 3, wherein, when described N equals 3, concentric spherical shell 2 is the concentric spherical shell of metal; And
Thermal neutron detector, described thermal neutron detector is arranged in described accommodation hole to detect thermal neutron.
2. many balls neutron spectrometer according to claim 1, is characterized in that, described thermal neutron detector is He-3 Spherical proportional counter or BF-3 proportional counter.
3. many balls neutron spectrometer according to claim 1, is characterized in that, the concentric spherical shell of described metal is the concentric spherical shell of metallic lead or the concentric spherical shell of metallic copper.
4. many balls neutron spectrometer according to claim 1, is characterized in that, to concentric spherical shell (N-1), at least one is the concentric spherical shell of described metal to concentric spherical shell 2.
5. an analyzer for the neutron spectrometer of ball more than, is characterized in that, comprising:
At least one many balls neutron spectrometer according to any one of claim 1-4;
At least one common many balls neutron spectrometer, wherein, the moderating sphere of described common many balls neutron spectrometer is tygon moderating sphere; And
Processor, described processor is connected with at least one common many balls neutron spectrometer described with at least one many balls neutron spectrometer described respectively, records the power spectrum of the thermal neutron that described many balls neutron spectrometer and described common many balls neutron spectrometer detect and shows.
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| CN105785425A (en) * | 2016-04-26 | 2016-07-20 | 成都理工大学 | Water injection and drainage full-automatic multisphere neutron spectrometer and measurement method |
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| CN108051847A (en) * | 2017-12-05 | 2018-05-18 | 清华大学 | Utilize the method for lanthanum bromide detector measurement neutron dose rate and neutron dose rate instrument |
| CN108121005A (en) * | 2017-12-05 | 2018-06-05 | 清华大学 | Utilize the method and neutron dose rate instrument of bromination cerium detector measurement neutron dose rate |
| CN109061716A (en) * | 2018-08-21 | 2018-12-21 | 中国人民解放军火箭军工程大学 | A kind of set baby neutron spectrometer |
| CN109387865A (en) * | 2017-08-11 | 2019-02-26 | 中国辐射防护研究院 | A kind of portable more ball neutron spectrometer systems and its method for monitoring neutron irradiation |
| CN111413729A (en) * | 2020-05-14 | 2020-07-14 | 中国工程物理研究院流体物理研究所 | Neutron counting method and counter used in strong pulse X-ray environment |
| CN111487669A (en) * | 2020-04-30 | 2020-08-04 | 成都理工大学 | Sleeve concentric multi-sphere neutron spectrometer, measuring method thereof and analysis processing system |
| CN112764087A (en) * | 2020-12-08 | 2021-05-07 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Neutron energy spectrum measuring device based on inflatable concentric ball |
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| CN105785425A (en) * | 2016-04-26 | 2016-07-20 | 成都理工大学 | Water injection and drainage full-automatic multisphere neutron spectrometer and measurement method |
| CN105785425B (en) * | 2016-04-26 | 2018-08-03 | 成都理工大学 | A kind of full-automatic more ball neutron spectrometers of water filling draining and measurement method |
| CN106950593A (en) * | 2017-03-30 | 2017-07-14 | 成都理工大学 | Pumping water multilayer concentric ball device and neutron energy spectrum detection system |
| CN106950593B (en) * | 2017-03-30 | 2019-05-14 | 成都理工大学 | Pumping water multilayer concentric ball device and neutron energy spectrum detection system |
| CN109387865A (en) * | 2017-08-11 | 2019-02-26 | 中国辐射防护研究院 | A kind of portable more ball neutron spectrometer systems and its method for monitoring neutron irradiation |
| CN108121005A (en) * | 2017-12-05 | 2018-06-05 | 清华大学 | Utilize the method and neutron dose rate instrument of bromination cerium detector measurement neutron dose rate |
| CN108051847A (en) * | 2017-12-05 | 2018-05-18 | 清华大学 | Utilize the method for lanthanum bromide detector measurement neutron dose rate and neutron dose rate instrument |
| CN108121005B (en) * | 2017-12-05 | 2019-09-17 | 清华大学 | Utilize the method and neutron dose rate instrument of bromination cerium detector measurement neutron dose rate |
| CN108051847B (en) * | 2017-12-05 | 2019-10-29 | 清华大学 | Utilize the method and neutron dose rate instrument of lanthanum bromide detector measurement neutron dose rate |
| CN109061716A (en) * | 2018-08-21 | 2018-12-21 | 中国人民解放军火箭军工程大学 | A kind of set baby neutron spectrometer |
| CN111487669A (en) * | 2020-04-30 | 2020-08-04 | 成都理工大学 | Sleeve concentric multi-sphere neutron spectrometer, measuring method thereof and analysis processing system |
| CN111487669B (en) * | 2020-04-30 | 2022-03-01 | 四川轻化工大学 | Sleeve concentric multi-sphere neutron spectrometer, measuring method thereof and analysis processing system |
| CN111413729A (en) * | 2020-05-14 | 2020-07-14 | 中国工程物理研究院流体物理研究所 | Neutron counting method and counter used in strong pulse X-ray environment |
| CN112764087A (en) * | 2020-12-08 | 2021-05-07 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Neutron energy spectrum measuring device based on inflatable concentric ball |
| CN114047541A (en) * | 2021-11-10 | 2022-02-15 | 中国原子能科学研究院 | Multi-sphere spectrometer for neutron energy spectrum measurement |
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