CN209656598U - A kind of flash detecting device and X-ray excited polycrystalline structure scintillator - Google Patents
A kind of flash detecting device and X-ray excited polycrystalline structure scintillator Download PDFInfo
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- CN209656598U CN209656598U CN201821896109.8U CN201821896109U CN209656598U CN 209656598 U CN209656598 U CN 209656598U CN 201821896109 U CN201821896109 U CN 201821896109U CN 209656598 U CN209656598 U CN 209656598U
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Abstract
The utility model relates to flicker detection technical field, providing a kind of flash detecting device and X-ray excited polycrystalline structure scintillator, flash detecting device has flash detection unit, the flash detection unit, including load bearing unit and photoelectricity scintillation detector；The load bearing unit includes X-ray excited polycrystalline structure scintillator load bearing unit, for carrying X-ray excited polycrystalline structure scintillator and sample collecting apparatus load bearing unit, for carrying sample collecting apparatus；The sample collecting apparatus is for carrying test sample；The test sample can excite the X-ray excited polycrystalline structure scintillator to launch photon；The photon can be detected in the photoelectricity scintillation detector；At least detection window segment of the test sample, the X-ray excited polycrystalline structure scintillator, the photoelectricity scintillation detector, three are set in same dark room conditions, are attached on independent carrier with the X-ray excited polycrystalline structure scintillator that the flash detecting device is used cooperatively.The utility model carries out flicker detection due to using X-ray excited polycrystalline structure scintillator, has many advantages, such as easy to operate, efficiently and accurately.
Description
Technical field
The utility model relates to flicker detection technical field more particularly to a kind of flicker detections using X-ray excited polycrystalline structure scintillator
Device and X-ray excited polycrystalline structure scintillator.
Background technique
Helicobacter pylori (Hp) is chronic gastritis and the most important virulence factor of peptic ulcer, and is the I class of gastric cancer
The elimination of carcinogen, helicobacter pylori is not so difficult, and simple antibiotic treatment is that can reach the purpose of elimination.After elimination
Infection chance will be less than 3 percent again, and lesion is that the probability of gastric cancer will greatly reduce due to Helicobacter pylori infection.In time,
Accurately diagnosing helicobacter helicobacter infection is the key that eliminating pylorus, is had very important significance.
Urea breath test is the prefered method of clinical detection helicobacter pylori, result high sensitivity, high specificity, inspection
It is short the time required to surveying, and no pain, this method have become the strong assistant of Gastroenterology dept. doctor, assist in gastroduodenal disease
The cause of disease of disease is conducive to carry out immunotherapy targeted autoantibody early stage disease.
The principle of urea breath test is to generate a large amount of urease in vivo based on helicobacter pylori, if therefore to infection
The oral isotope labelling carbon of the patient of helicobacter pylori (13C、14C urea drug), then what is generated after urea is decomposed contains same position
The carbon dioxide of element label carbon is breathed out from lung.Specimen of breath is collected, detects isotope labelling CO with instrument2Amount, positive patient
The CO of isotope labelling2Amount obviously increase, the sensibility and specificity for detecting helicobacter pylori is high, helicobacter pylori remove
Afterwards, then the CO of isotope labelling is breathed out2It reduces or disappears.Breathing test has the advantages that quick, reliable, safety, no pain.
It uses13When C urea drug is detected, the CO of exhalation2Amount generally use infrared facility, mass spectrograph etc. side
Formula detection.
It uses14When C urea drug is detected, due to14C has radioactivity, can launch beta particle, excites scintillator
Launch photon, the CO of exhalation2Amount by detection transmitting photon amount you can learn that.
It is currently used in the market to contain14The urea breath detection method of C is divided into liquid scintillation detection method and Geiger counter tube
Two kinds of detection method, detection is completed by corresponding clinical detection instrument and matched expiration sample collection member.
Liquid scintillation detection method is that the medium transmitted by scintillation solution as ray energy is examined come a kind of radioactivity carried out
Survey technology.It is the CO that patient's exhalation is collected using the gas collection agent of liquid2, test sample is formed, sample is will test and is completely dissolved
Or it is dispersed among liquid scintillator, or be suspended in scintillation solution, or sample is adsorbed on solid support and is submerged
In scintillation solution, with scintillation solution close contact, β-particle energy overwhelming majority that sample is emitted is drawn first by solvent absorption
Play solvent molecule ionization and excitation.The molecule (about 90%) that is largely stimulated is not involved in scitillation process, is lost in the form of thermal energy
Energy；The solvent molecule of part excitation is in upper state, when its promptly de excitation, just transfers energy to the sudden strain of a muscle of surrounding
Bright body molecule, is allowed to be stimulated.When the upper state scintillator molecule de excitation being stimulated restores, energy is shifted, and is sent out in moment
Project photon.Detection counting is carried out to the photon by photomultiplier tube, to know in test sample14The content of C.
Liquid scintillation detection method detection efficiency with higher, however, the gas collection for the liquid that liquid scintillation detection method uses
Agent and scintillation solution are usually toxic solution, are easy to happen and gas collection agent suck-back entrance, liquid are splashed the defects of polluting.
Geiger counter tube counting method is to pass through14The β ray of C decay emission directly causes indifferent gas in Geiger counter tube
The mode of volume ionization measures the Beta-ray rate of disintegration.It is not needed to use scintillation solution with Geiger counter method, but disadvantage is: measurement effect
Rate is low, and in certain time of measuring, measurement error is larger.
Utility model content
The utility model embodiment provides a kind of flash detecting device and X-ray excited polycrystalline structure scintillator, using X-ray excited polycrystalline structure scintillator conduct
Be excited object, is that a completely new expiration detection embodiment avoids liquid gas collection agent relative to liquid scintillation detection method
With scintillator is toxic, defect the utility model that easily splash.
The utility model solves technical solution used by above-mentioned technical problem:
A kind of flash detecting device, including load bearing unit are provided, the load bearing unit is including movable load bearing unit and admittedly
Determine load bearing unit, the activity load bearing unit can be in and out of the flash detecting device, and the fixed load bearing unit is fixedly arranged on institute
It states in flash detecting device.
Preferably, flash detecting device includes: flash detection unit, the flash detection unit, including the carrying is single
Member and photoelectricity scintillation detector；The X-ray excited polycrystalline structure scintillator, which is excited, can launch photon；The photoelectricity scintillation detector can be examined
Measure the photon；At least detection window segment of the X-ray excited polycrystalline structure scintillator, the photoelectricity scintillation detector, the two is set to same
In dark room conditions.
Preferably, flash detecting device further include: scinticounting unit counts judging unit；The scinticounting unit
The data output end of the photoelectricity scintillation detector is connected, for receiving detection count signal；The counting judging unit connection
The scinticounting unit exports judging result for judging the detection count signal according to preset program.
Preferably, detection window one end optics airtight connection of the photoelectricity scintillation detector has a cavity, the cavity
The load bearing unit is accommodated, the dark room conditions are constituted.
Preferably, the fixed load bearing unit includes pallet, and the X-ray excited polycrystalline structure scintillator is placed in the pallet.
Preferably, the fixed load bearing unit includes the support that at least one supporting point supports the X-ray excited polycrystalline structure scintillator
Portion.
Preferably, the fixed load bearing unit includes the card slot at least partly supporting the X-ray excited polycrystalline structure scintillator edge.
A kind of X-ray excited polycrystalline structure scintillator being used cooperatively with above-mentioned flash detecting device is additionally provided, the X-ray excited polycrystalline structure scintillator is attached
On independent chip carrier, the carrier for being attached with the X-ray excited polycrystalline structure scintillator is removably carried on the fixed load bearing unit
On.
Preferably, the X-ray excited polycrystalline structure scintillator is placed in institute in a manner of corresponding to the sample collecting apparatus in large area as far as possible
It states in fixed load bearing unit.
Preferably, the X-ray excited polycrystalline structure scintillator is independent diaphragm.
The utility model has the advantage that flash detecting device includes load bearing unit, and load bearing unit includes an activity
Load bearing unit and a fixed load bearing unit, movable load bearing unit can be in and out of flash detecting device, for carrying sample acquisition
Device, fixed load bearing unit is fixedly arranged in flash detecting device, for carrying X-ray excited polycrystalline structure scintillator；Cooperate with the flash detecting device
The X-ray excited polycrystalline structure scintillator used is attached on independent carrier.Using X-ray excited polycrystalline structure scintillator as the object being excited, relative to liquid
Flicker detection method avoids the defect that the agent of liquid gas collection and scintillator are toxic, easily splash.
Detailed description of the invention
Fig. 1 is the flow chart of one flicker detection method of the utility model embodiment；
Fig. 2 is the construction module block diagram of two flash detecting device of the utility model embodiment.
Specific embodiment
The utility model embodiment provides a kind of flash detecting device and X-ray excited polycrystalline structure scintillator, for medical detection field,
Helicobacter pylori is detected specifically for urea breath test method, the flash detecting device and X-ray excited polycrystalline structure scintillator of the utility model are adopted
Use X-ray excited polycrystalline structure scintillator as the object that is excited, in test sample14The beta particle that C decay generates is produced by excitation X-ray excited polycrystalline structure scintillator
Photon is born, photoelectricity scintillation detector detects the photon to know the 14C content in test sample, to judge helicobacter pylorus
The infection conditions of bacterium.
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
The specification and claims of the utility model and term " first " in above-mentioned attached drawing, " second ", " third ",
" 4th " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein or describing
Content other than sequence implement.In addition, term " includes " and " having " and their any deformation, it is intended that covering is not
Exclusive includes, for example, the process, method, system, product or equipment for containing a series of steps or units be not necessarily limited to it is clear
Step or unit those of is listed on ground, but is not clearly listed or for these process, methods, product or is set
Standby intrinsic other step or units.
For ease of understanding, the utility model embodiment is described below.
Referring to Fig. 1, the application first embodiment provides a kind of flicker detection method, it is contained in test sample for detecting
Radionuclide, specifically, in urea breath test, the CO of detection patient's exhalation2In14The content of C, the method
Include:
S1: the test sample containing radionuclide launches beta particle in dark room conditions；
In urea breath test, contain under clothes for patients14After the urea drug of C flag, acquired using sample collecting apparatus
Its CO breathed out2, it is attached on sample collecting apparatus, is chemically reacted with the gas collection agent on acquisition device, forms detection sample
Product.If patient has infection helicobacter pylori, since the urease that helicobacter pylori generates can decompose urea drug, decompose
Product CO2It is discharged from lung, therefore, contains in test sample14The amount of C has directly reacted the band of patient's exhalation14The CO of C2's
Amount to react the amount of urease in patient body, and then judges the case where patient infects helicobacter pylori.Inspection will be attached with
The sample collecting apparatus of sample is placed in the load bearing unit of flash detecting device, and closed flash detecting device makes to detect at environment
In dark room conditions, the test sample14C launches beta particle.
S2: the beta particle excites the X-ray excited polycrystalline structure scintillator to launch photon in same dark room conditions；
X-ray excited polycrystalline structure scintillator, for energy quilt14The scintillator of the beta particle excitation of C transmitting.The material of scintillator can be crystal sudden strain of a muscle
Bright body, plastic scintillant etc., wherein plastic scintillant can be acrylic acid plastic scintillant, polystyrene scintillator, poly- naphthalene rouge
Scintillator etc.；The form of scintillator can be flashing particle, scintillator coatings, scintillator powder etc.；The ingredient of scintillator can be with
It is bis- 2, the 5- oxazolyl phenyl benzene (POPOP) of 2,5-, bis- isoxazolyl benzenesulfonamide (PPO) Isosorbide-5-Nitrae-, p-terphenyl etc., above-mentioned only to enumerate, this Shen
Please used by X-ray excited polycrystalline structure scintillator it is without being limited thereto, it is all can quilt14The X-ray excited polycrystalline structure scintillator of the beta particle excitation of C transmitting may be used to this
In the detection method of application.
Due to14The beta particle that C is generated is that the very weak ray of penetration capacity will contain to improve launching efficiency14The detection of C
Sample and the X-ray excited polycrystalline structure scintillator being excited are placed in same dark room conditions, excite X-ray excited polycrystalline structure scintillator sufficiently by beta particle.
S3: the photon is detected by photoelectricity scintillation detector in same dark room conditions and is counted.
The probe response range one of spectral region and photoelectricity scintillation detector that the X-ray excited polycrystalline structure scintillator emits after being excited
It causes.Typically, the photoelectricity scintillation detector uses photomultiplier tube.
Photomultiplier tube utilizes the multiplication amplification of electronics secondary emission to measure low light intensity, under the irradiation of light
Launching electronics, referred to as photoelectron, it impacts anode after grid accelerates amplification, current impulse is ultimately formed, to this electric current arteries and veins
Capable counting is rushed in, it can be learnt that14The case where C decays.
The flicker detection method of the application provides a kind of complete due to using X-ray excited polycrystalline structure scintillator as the object that is excited
New flicker detection scheme is simple, at low cost with equipment, avoid toxic gas collection agent and scintillation solution and detection efficiently quasi-
True advantage.
Due to usually requiring easily and intuitively to provide testing result when detecting, the detection method of the application is also wrapped
It includes:
S4: detection counting is judged according to pre-set programs, exports judging result.
In14C exhales in detection, the radionuclide detected14The content of C directly embodies patient and infects helicobacter pylori
The case where, clinically usually with the positive and negative result to indicate detection.For example, by urea14C exhales, and detection is positive to be sentenced
Disconnected value is set as >=n, and the value of different detection devices, n is different, and clinical instrumentation detection helicobacter pylori is qualitative rather than fixed
Amount, therefore, it can stop surveying more than the unit count three times that stored count has been more than positive count value n in a short time
Amount, provides positive findings, can substantially shorten detection time in this way.Based on this, it is preferable that the flicker detection method of the application is right
Detection count when being judged specifically includes the following steps:
R setting first threshold a and second threshold b (a is less than b) are counted to the detection, threshold value h is arranged to detection time,
For example, it be 600, h value is 1 minute that a value, which is 200, b value,.
When detection time is less than threshold value h, and detects counting r < b, continue to test；
When detection time is less than threshold value h, and detects counting r >=b, illustrates that testing result is determined as the positive, then terminate to examine
It surveys, exports the first judging result, i.e. positive findings；
When detection time is equal to threshold value h, and detects counting r < a, terminates detection, export the second judging result, i.e., it is negative
As a result.
When detection time is equal to threshold value h, and detects counting r >=a, terminates detection, export the first judging result, i.e., it is positive
As a result；
It can be seen that from the above detection method due to taking when detection time is less than threshold value h and detection counts r >=b,
Stop the step of detection directly gives positive findings, therefore does not need to survey full threshold time h every time, and in clinic, sufferer sense
When dye helicobacter pylori is positive, detection counts the several times for often just reaching positive counting in a very short period of time or more, because
The detection method of this application is substantially reduced detection time, effectively improves detection efficiency.
Work as detection time equal to threshold value h at the same time it can also be arranged, detection counts r in a certain range before and after a, automatically
Repeatedly measurement, the result of final output is to be occupied the majority in the result judged with above-mentioned judgment method as a result, detection can be improved
Accuracy rate.
The utility model provides a kind of flash detecting device.
Referring to Fig. 2, the utility model flash detecting device includes:
Flash detection unit 1, counts judging unit 3 at scinticounting unit 2.
The flash detection unit 1, including movable load bearing unit 101, fixed load bearing unit 103, photoelectricity scintillation detector
102。
The activity load bearing unit 101, can be in and out of the flash detection unit 1, for carrying test sample.The inspection
Sample is attached on sample collecting apparatus, sample collecting apparatus is placed in the movable load bearing unit 101 when detection.
The fixed load bearing unit 103 before being fixedly arranged on the detection window of photoelectricity scintillation detector 102, carries solid-state flashing
Body.Fixed load bearing unit 103 is set between movable load bearing unit 101 and photoelectricity scintillation detector 102, alignment photoelectricity flashing
The detection window of detector 102, so that photoelectricity scintillation detector 102 sufficiently receives the solid-state placed in fixed load bearing unit 103
The photon that scintillator emission goes out.Detection window one end optics airtight connection of the photoelectricity scintillation detector has a cavity, described
Cavity accommodates the movable load bearing unit 101 and the fixed load bearing unit 103, so that the test sample, institute when detection
State X-ray excited polycrystalline structure scintillator, the detection window three of the photoelectricity scintillation detector is set in same dark room conditions.It is also possible to entire
Photoelectricity scintillation detector, the test sample, the X-ray excited polycrystalline structure scintillator are placed in a closed darkroom.
The X-ray excited polycrystalline structure scintillator can be attached on sample collecting apparatus together with test sample, can also be by independent load
Body carrying, it is preferable that the independent X-ray excited polycrystalline structure scintillator carrier is fixed together with sample collecting apparatus mechanical connection.
The X-ray excited polycrystalline structure scintillator, for energy quilt14The scintillator of the beta particle excitation of C transmitting.The material of scintillator can be crystalline substance
Body scintillator, plastic scintillant etc., wherein plastic scintillant can be acrylic acid plastic scintillant, polystyrene scintillator, gather
Naphthalene rouge scintillator etc.；The form of scintillator can be flashing particle, scintillator coatings, scintillator powder etc.；The ingredient of scintillator
It can be bis- 2, the 5- oxazolyl phenyl benzene (POPOP) of 2,5-, bis- isoxazolyl benzenesulfonamide (PPO) Isosorbide-5-Nitrae-, p-terphenyl etc., it is above-mentioned only to enumerate,
X-ray excited polycrystalline structure scintillator used by the utility model is without being limited thereto, all energy quilts14The X-ray excited polycrystalline structure scintillator of the beta particle excitation of C transmitting all may be used
In detection device for the utility model.
X-ray excited polycrystalline structure scintillator in the utility model is placed between photoelectricity scintillation detector and test sample, can dodge solid-state
Bright body is combined with expiration collecting part, including being covered in the form of scintiphoto or flashing film, being bonded or be wrapped in and exhale
Gas collection material surface, or mixed with flashing particle, scintillator powder and expiration collection material, or applied with scintillator
The form of layer is coated in the surface of expiration collection material.
Based on this, the utility model additionally provides a kind of sample collection cartridge being used cooperatively with the flash detecting device
It sets, the test sample and the X-ray excited polycrystalline structure scintillator, the attachment of the X-ray excited polycrystalline structure scintillator is attached on the sample collecting apparatus
Mode can be above-mentioned various adhering modes.
X-ray excited polycrystalline structure scintillator in the utility model can also be attached on independent carrier, it is preferable that be attached to independent
On chip carrier.To guarantee higher launching efficiency, X-ray excited polycrystalline structure scintillator to contact the sample collecting apparatus in large area as far as possible
Mode, be placed in the load bearing unit so that X-ray excited polycrystalline structure scintillator fully be detected sample excitation.The sample collection cartridge
Setting with the separate carrier of the X-ray excited polycrystalline structure scintillator to be the card structure mutually stacked, be also possible to consolidating for independent membrane structure
State scintillator, with the sample collecting apparatus close to being placed with or the X-ray excited polycrystalline structure scintillator of independent membrane structure, part when use
Or fully coat the sample collecting apparatus.
Have to decay in the test sample and generates beta particle14C element, the beta particle can excite the solid-state to dodge
Bright body launches photon, and the position where the photoelectricity scintillation detector can detecte the photon.Optimally, the solid-state
Before scintillator is located at the detection window of the photoelectricity scintillation detector.
Scinticounting unit 2 connects the data output end of photoelectricity scintillation detector 102, is used for count pick up signal.Photoelectricity
Scintillation detector 102 can be various dim light electro-detection components, wherein photomultiplier tube utilizes it is preferable to use photomultiplier tube
The multiplication amplification of electronics secondary emission is that sensitivity is high to measure low light intensity, the optical detector that response speed is exceedingly fast.
This scanning device is actually a kind of electron tube, and photosensitive material is mainly the oxide of metal caesium, wherein and being doped with it
He is modified the oxide of some active metals (such as lanthanide series metal), to improve sensitivity and the amendment curve of spectrum, uses this
Photocathode ray tube made of kind of material, under the irradiation of light can launching electronics, referred to as photoelectron, it accelerates through grid
Impact anode after amplification, ultimately form current impulse, scinticounting unit 2 counts the current impulse, export to
Count judging unit 3.
It counts judging unit 3 and connects scinticounting unit 2, for being carried out to the count signal according to preset program
Judgement exports judging result.
Flash detecting device used by the completely new flicker detection embodiment of one kind is present embodiments provided, due to using
X-ray excited polycrystalline structure scintillator as the medium being excited avoids gas collection agent and the scintillation solution of liquid relative to liquid scintillation detection method
Defect that is toxic, easily splashing；Simultaneously as photoelectricity scintillation detector detection efficiency with higher, is examined relative to Geiger counter
The flash detecting device of survey method, the present embodiment has the advantages that fast response time.
Due to square being inversely proportional for the decaying of radioactive radiation intensity and distance, in the present embodiment, X-ray excited polycrystalline structure scintillator and sample
Product acquisition device is set to one, makes sample and scintillator close contact, after acquiring a sample, is placed in flash detecting device
Detection is taken out after having detected and is abandoned, and since X-ray excited polycrystalline structure scintillator is used with sample collecting apparatus together as easily-consumed products, can be improved
Detection efficient, so that testing result is more acurrate.
Preferably, the X-ray excited polycrystalline structure scintillator in the utility model uses poly- naphthalene ester film.
Poly- naphthalene ester is a kind of Polymer Scintillator, is the abbreviation of poly- 2.6- polyethylene naphthalate, it is 2.6- naphthalene diformazan
Dimethyl phthalate and ethylene glycol are 1:2.5 with mole ratio, and making catalyst with manganese acetate, (dosage is 2.6- naphthalene diformic acid dimethyl ester
0.03%) in 190~200 DEG C of progress ester exchange reactions, the double hydroxyl ethyl esters of 2.6- naphthalenedicarboxylic acid are obtained.Sb is added in products therefrom2O3It urges
Agent (dosage 0.015%) triphenyl phosphite stabilizer (dosage 0.03-0.05%), which is gradually warmed up to 240 DEG C, to be started to subtract
Pressure is evacuated under 0.2 millimetres of mercury in 280~290 DEG C of progress melt polycondensations, obtains poly- naphthalene ester.Poly- naphthalene ester thin slice is obtained through film releasing,
Poly- naphthalene ester film is obtained through biaxial stretch-formed again.
In the present embodiment, X-ray excited polycrystalline structure scintillator is placed in flash detecting device in a manner of separate carrier, typically, e.g.
Scintillator piece, scintillator film or scintillator particle, powder, coating etc. are attached on adsorbent equipment, be can be and are dodged in photoelectricity
The fixed load bearing unit of bright detector detection window space before a distance setting one is also possible to for placing the X-ray excited polycrystalline structure scintillator
The separate carrier of the X-ray excited polycrystalline structure scintillator is directly tightly fixed to the detecting window front end of photoelectricity scintillation detector, is flashed with photoelectricity
Detector forms one.The utility model additionally provides a kind of X-ray excited polycrystalline structure scintillator, is attached on independent carrier, above-mentioned activity
Load bearing unit is for carrying sample collecting apparatus, and for fixed load bearing unit for carrying the X-ray excited polycrystalline structure scintillator, this is attached with solid-state sudden strain of a muscle
The carrier of bright body is removably carried on fixed load bearing unit, and X-ray excited polycrystalline structure scintillator is with counter sample acquisition fills in large area as far as possible
The mode set is placed in fixed load bearing unit.When implementation, X-ray excited polycrystalline structure scintillator can be independent diaphragm.
In the utility model, the fixed load bearing unit can be pallet, and the X-ray excited polycrystalline structure scintillator is placed in the pallet
In, the pallet can provide support to X-ray excited polycrystalline structure scintillator upwards from the lower section of X-ray excited polycrystalline structure scintillator with flat form including all
Structure, such as platform, recess portion, mesh-supported portion etc..
Fixed load bearing unit can also be that at least one supporting point supports the support portion of the X-ray excited polycrystalline structure scintillator, preferably
Ground, is the support portion for extending multiple supporting points from the internal side wall of flash detecting device to center, the X-ray excited polycrystalline structure scintillator by
The multiple supporting point support.
Fixed load bearing unit can also be the card slot at least partly supporting the X-ray excited polycrystalline structure scintillator edge, e.g. two
Two edges of the X-ray excited polycrystalline structure scintillator of the card slot support card sheet of strip.
Preferably, the X-ray excited polycrystalline structure scintillator is attached on independent chip carrier, to correspond to the sample in large area as far as possible
The mode of product acquisition device is placed in the fixed load bearing unit.Preferably, the X-ray excited polycrystalline structure scintillator is independent diaphragm.
In the present embodiment, X-ray excited polycrystalline structure scintillator is fixedly installed on photoelectricity scintillation detector 102 and detects the position before window, so that light
Relative position between electric scintillation detector and X-ray excited polycrystalline structure scintillator and apart from fixation, detection of the photoelectricity scintillation detector for photon
Effect is not influenced by X-ray excited polycrystalline structure scintillator change in location, and testing result is more acurrate.
The flash detecting device and X-ray excited polycrystalline structure scintillator of the utility model can be applied to clinical detection of exhaling, testing result
For diagnosing the infection conditions of patient helicobacter pylori.Patient is oral to be contained14The urea drug of C element label, if patient's thoughts
Helicobacter pylori is contaminated, then after the urease that urea is generated by helicobacter pylori decomposes, generation contains14The CO of C flag2It is breathed out from lung.
Specimen of breath is collected using sample collecting apparatus, is contained with the flash detecting device detection of the utility model14The CO of C flag2Amount,
Positive patient contains14The CO of C flag2Content obviously increases, and the utility model flash detecting device detects the sensitivity of helicobacter pylori
Property and specificity it is high, have the advantages that quickly, reliable, safety, no pain.
Embodiment described above is only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to before
Embodiment is stated the utility model is described in detail, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit for various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
And range.
Claims (10)
1. a kind of flash detecting device, which is characterized in that including load bearing unit, the load bearing unit include movable load bearing unit and
Fixed load bearing unit, the activity load bearing unit can be in and out of the flash detecting device, and the fixed load bearing unit is fixedly arranged on
In the flash detecting device, the fixed load bearing unit is for carrying X-ray excited polycrystalline structure scintillator.
2. flash detecting device according to claim 1 characterized by comprising flash detection unit, the flashing are visited
Survey unit, including the load bearing unit and photoelectricity scintillation detector；
The X-ray excited polycrystalline structure scintillator, which is excited, can launch photon；
The photon can be detected in the photoelectricity scintillation detector；
At least detection window segment of the X-ray excited polycrystalline structure scintillator, the photoelectricity scintillation detector, the two are set to same dark room conditions
In.
3. flash detecting device according to claim 2, which is characterized in that further include: scinticounting unit counts judgement
Unit；
The scinticounting unit connects the data output end of the photoelectricity scintillation detector, for receiving detection count signal；
The counting judging unit connects the scinticounting unit, for counting and believing to the detection according to preset program
Number judged, exports judging result.
4. flash detecting device according to claim 2, which is characterized in that the detection window one of the photoelectricity scintillation detector
End optics airtight connection has a cavity, and the cavity accommodates the load bearing unit, constitutes the dark room conditions.
5. flash detecting device according to claim 1, which is characterized in that the fixed load bearing unit includes pallet, institute
X-ray excited polycrystalline structure scintillator is stated to be placed in the pallet.
6. flash detecting device according to claim 1, which is characterized in that the fixed load bearing unit includes at least one
A supporting point supports the support portion of the X-ray excited polycrystalline structure scintillator.
7. flash detecting device according to claim 1, which is characterized in that the fixed load bearing unit includes at least partly
Ground supports the card slot at the X-ray excited polycrystalline structure scintillator edge.
8. a kind of X-ray excited polycrystalline structure scintillator being used cooperatively with flash detecting device described in claim 5,6 or 7 any one, special
Sign is that the X-ray excited polycrystalline structure scintillator is attached on independent chip carrier, and the carrier for being attached with the X-ray excited polycrystalline structure scintillator is detachable
Ground is carried on the fixed load bearing unit.
9. X-ray excited polycrystalline structure scintillator according to claim 8, which is characterized in that the activity load bearing unit is adopted for carrying sample
Acquisition means, the X-ray excited polycrystalline structure scintillator are placed in the fixation and hold in a manner of corresponding to the sample collecting apparatus in large area as far as possible
In carrier unit.
10. X-ray excited polycrystalline structure scintillator according to claim 8, which is characterized in that the X-ray excited polycrystalline structure scintillator is independent diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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