CN1328596C - Method and apparatus for testing flash detector probe - Google Patents
Method and apparatus for testing flash detector probe Download PDFInfo
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- CN1328596C CN1328596C CNB2003101063230A CN200310106323A CN1328596C CN 1328596 C CN1328596 C CN 1328596C CN B2003101063230 A CNB2003101063230 A CN B2003101063230A CN 200310106323 A CN200310106323 A CN 200310106323A CN 1328596 C CN1328596 C CN 1328596C
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Abstract
The present invention relates to a method for detecting probe heads of scintillation probes and a novel structure of a probe head of a scintillation probe, which belongs to the experimental technique in the field of nuclear physics. After a photomultiplier is filled in a container, the container is plugged up by a soft material, a high voltage lead is tightly sealed by vacuum black mud, and the photomultiplier is detected; when the photomultiplier needs replacing, the soft material and the container are easily separated; after the replacement, the steps are repeated, until an applicable crystal and an applicable photomultiplier are selected; after the pre-detection, the crystal and the photomultiplier are encapsulated by elastic adhesive and connected to an electronic circuit. The probe head has the novel structure that two to four through holes with threads are additionally arranged on the end surface of the metal container for encapsulating the photomultiplier or the crystal. After the method is adopted, the components are no longer damaged when the probe head is detached.
Description
Technical field
The present invention relates to the experimental technique in a kind of nuclear physics field, particularly a kind of method of testing of scintillation detector probe, and the structure of the scintillation detector that this method of testing adopted probe.
Background technology
In the nuclear physics field, in fact experimental technique comprises three aspects, i.e. accelerator art, and nuclear reactor art and detector technology, they constitute the complete nuclear physics experiment technology of a cover.Wherein detector technology generally includes experimental apparatus, three aspects of detection method and data processing method.Experimental apparatus just is meant dissimilar detector principles, structure, kind, performance, application etc.A kind of detector that uses in our work is scintillation detector at present, and detector is made up of several sections such as probe, high-voltage power supply, prime amplifier, main amplifier, pulse-height analyzer and scaler.Probe segment is an airtight dark lock, and camera obscura is fited together by scintillator container and photomultiplier transit tubular container and constitutes, comprising scintillator, and light-guide material (optical coupling glue) and three parts of photomultiplier.What scintillator was used is several crystal such as CsI, NaI, BGO.These three parts to the mechanism of surveying nuclear radiation are: when nuclear radiation enters scintillator, make the atom in the scintillator be subjected to exciting the back to produce fluorescence, utilize optical coupling glue and reverberation that most of fluorescent photon is collected on the photocathode of photomultiplier, photoelectron doubles in photomultiplier, electron beam after the multiplication produces potential pulse on negative electrode, this pulse goes on record and is used as analyzing data.
Be assembled into the satisfied detection of desirable probe, at first will select good crystal of performance and highly sensitive photomultiplier, promptly scintillation detector is assembled repeatedly and tests ray.Traditional way is to be contained in crystal and the effective elastic plastic of photomultiplier transit in the canister respectively, after part is sealed, the surface that connects at photomultiplier adds an amount of optical coupling glue, after treating that optical coupling glue surface does not produce bubble, the method of two parts with machinery coupled together, the assembling that this kind is traditional and the shortcoming of method of testing are: be not easy to after photomultiplier or crystal break down in test process change, can only scrap together with canister, because the coupling intensity of elastic plastic is bigger, photomultiplier or crystal and canister can not be separated.
Secondly; Because the bounding force of crystal and photomultiplier interface coupling glue is bigger, make two isolation of components open can only to use the thin metallic weapon in end at sled firmly at the interface, tend to the wherein a certain parts of damage and cause economic loss.
Summary of the invention
At the shortcoming of tradition assembling and method of testing, the object of the invention is to provide a kind of assembling and method of testing of new scintillation detector, and the scintillation detector that this method of testing the adopted structure of popping one's head in.New method of testing will be carried out pre-detection to photomultiplier, simultaneously the metal container structures of probe be transformed, and can change parts safely and reliably, reduce economic loss.
The test of scintillation detector and assembly method the steps include:
Photomultiplier is packed into behind the container, selects soft solid material jam-pack for use, obturage with the vacuum black mud at the high-voltage connection place,
Detect photomultiplier,
When needing to change crystal or photomultiplier, just at an easy rate two isolation of components are opened,
Change after crystal or the photomultiplier, repeat above-mentioned two steps, to choosing suitable crystal and photomultiplier,
After finishing pre-detection,, finish preparation, and connect electronic circuit probe with elastic plastic encapsulation crystal and photomultiplier.
That is to say: during detection, photomultiplier is packed into behind the container, without elastic plastic, select soft solid material jam-pack for use, obturage with the vacuum black mud at the high-voltage connection place, printing opacity can not take place, coupling glue adds a spot of hardening agent, makes its bounding force less.When needs are changed crystal or photomultiplier, just at an easy rate two isolation of components are opened, can not damage any device, through this easy test to the performance of crystal, photomultiplier, quality determination after, they are encapsulated in the preparation of finishing these parts of probe in each canister respectively with elastic plastic again.
Prioritization scheme of the present invention is the improvement of metal construction: the end at the canister of the end face of the canister of encapsulation photomultiplier or encapsulation crystal increases by 2 to 4 threaded through holes, the neglecting condition greatly of aperture and deciding, after finishing pre-detection, with elastic plastic encapsulation crystal and photomultiplier, finish preparation to probe, and the connection electronic circuit is used for experimental work, when needing to change the photo-multiplier section when breaking down in the experimentation, the trip bolt of the junction of two parts unclamps in elder generation, because the bounding force effect of coupling glue, two parts can't be separated, this moment, we can be at the corresponding screw of screw place precession of canister end face increase, the end face of several even another canisters of pushing tow of screw, when this top power during greater than the bounding force of coupling glue, two parts are separated at leisure just beginning at the interface of connecting, change required parts.Do not appear at the situation of damaging parts in the process of dismantling probe again after adopting this way.
Description of drawings
Fig. 1 is a scintillation detector structural representation of the present invention.
Embodiment
Embodiment 1, with reference to Fig. 1:
The scintillation detector probe, be provided with airtight dark lock, camera obscura is fited together by scintillator container 1 and photomultiplier transit tubular container 2 and constitutes, and is respectively equipped with scintillator 3 and photomultiplier 4 in the container, optical coupling glue 5 as light-guide material is arranged between the two, between both and the container elastic plastic 7 is arranged.End at the canister of the end face of the canister of encapsulation photomultiplier or encapsulation crystal increases by 2 to 4 threaded through holes 6.The structure that is exclusively used in when detecting is: without elastic plastic, but select soft solid material jam-pack for use between photomultiplier 5 and container 2, obturage with the vacuum black mud at the high-voltage connection place.Detection and assembly method may further comprise the steps:
Detect photomultiplier,
When needing to change crystal or photomultiplier, the trip bolt of the junction of two parts unclamps in elder generation, at the corresponding screw of screw place precession that the canister end face increases, the end face of several even another canisters of pushing tow of screw, just at an easy rate two isolation of components are opened
Change after crystal or the photomultiplier, repeat above-mentioned two steps, to choosing suitable crystal and photomultiplier,
After finishing pre-detection,, finish preparation, and connect electronic circuit probe with elastic plastic encapsulation crystal and photomultiplier.
Claims (4)
1, a kind of method of testing of scintillation detector the steps include:
Photomultiplier is packed into behind the container,, obturages with the vacuum black mud at the high-voltage connection place with soft solid material jam-pack,
Detect photomultiplier, when needing to change crystal or photomultiplier, this two isolation of components opened,
Change after crystal or the photomultiplier tube, repeat above-mentioned two steps, to choosing suitable crystal and photomultiplier,
After finishing pre-detection,, finish preparation, and connect electronic circuit probe with elastic plastic encapsulation crystal and photomultiplier.
2, according to the method for testing of the described scintillation detector of claim 1, it is characterized in that: also be provided with following steps:
End at the canister of the end face of the canister of encapsulation photomultiplier or encapsulation crystal increases by 2 to 4 threaded through holes,
When needing to change the photo-multiplier section, the trip bolt of the junction of two parts unclamps in elder generation, and at the corresponding screw of screw place precession that the canister end face increases, the end face of several even another canisters of pushing tow of screw makes separating at the interface of two parts.
3, according to the employed scintillation detector probe of the described scintillation detector method of testing of claim 1, be provided with airtight camera obscura, camera obscura is fited together by scintillator container and photomultiplier transit tubular container and constitutes, be respectively equipped with scintillator and photomultiplier in the container, light-guide material is arranged between the two, between both and the container elastic plastic is arranged, it is characterized in that: the end at the canister of the end face of the canister of encapsulation photomultiplier or encapsulation crystal increases by 2 to 4 threaded through holes.
4, according to the described scintillation detector probe of claim 3, it is characterized in that: be added with hardening agent in the described optical coupling glue as light-guide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101063230A CN1328596C (en) | 2003-11-18 | 2003-11-18 | Method and apparatus for testing flash detector probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101063230A CN1328596C (en) | 2003-11-18 | 2003-11-18 | Method and apparatus for testing flash detector probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1707286A CN1707286A (en) | 2005-12-14 |
| CN1328596C true CN1328596C (en) | 2007-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101063230A Expired - Fee Related CN1328596C (en) | 2003-11-18 | 2003-11-18 | Method and apparatus for testing flash detector probe |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067638B (en) * | 2007-06-07 | 2011-11-16 | 中国科学院紫金山天文台 | Electron-multiplier tube performance testing method and device under vacuum condition |
| CN102183778B (en) * | 2011-05-04 | 2017-10-31 | 深圳市贝斯达医疗股份有限公司 | A kind of scintillation detector |
| CN105467427A (en) * | 2014-09-12 | 2016-04-06 | 北京大基康明医疗设备有限公司 | Silicon photomultiplier chip test device |
| GB2553983A (en) * | 2015-06-03 | 2018-03-21 | Halliburton Energy Services Inc | Pressure balanced liquid scintillator for downhole gamma detection |
| CN109444182B (en) * | 2018-12-22 | 2024-07-23 | 苏州瑞派宁科技有限公司 | Scintillation crystal testing arrangement |
| CN111948694A (en) * | 2020-07-23 | 2020-11-17 | 南昌大学 | Scintillation detector test platform and method based on high-speed oscilloscope |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06205763A (en) * | 1993-01-13 | 1994-07-26 | Shin Etsu Chem Co Ltd | Manufacture of scintillator |
| CN2578841Y (en) * | 2002-11-15 | 2003-10-08 | 清华大学 | Radial imaging solid detector |
| CN2708331Y (en) * | 2003-11-18 | 2005-07-06 | 中国科学院紫金山天文台 | Scintillation detector probe and testing device thereof |
-
2003
- 2003-11-18 CN CNB2003101063230A patent/CN1328596C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06205763A (en) * | 1993-01-13 | 1994-07-26 | Shin Etsu Chem Co Ltd | Manufacture of scintillator |
| CN2578841Y (en) * | 2002-11-15 | 2003-10-08 | 清华大学 | Radial imaging solid detector |
| CN2708331Y (en) * | 2003-11-18 | 2005-07-06 | 中国科学院紫金山天文台 | Scintillation detector probe and testing device thereof |
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| Publication number | Publication date |
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| CN1707286A (en) | 2005-12-14 |
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