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Bismuth germanate scintillation crystal for positron emission tomography
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GB/T 39867-2021
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Basic data | Standard ID | GB/T 39867-2021 (GB/T39867-2021) | | Description (Translated English) | Bismuth germanate scintillation crystal for positron emission tomography | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q65 | | Word Count Estimation | 14,121 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 39867-2021: Bismuth germanate scintillation crystal for positron emission tomography---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Bismuth germanate scintillation crystal for positron emission tomography
ICS 07.030
Q65
National Standards of People's Republic of China
Bismuth Germanate Scintillation Crystal for Positron Emission Tomography Scanner
Released on 2021-03-09
2021-10-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China Building Materials Federation.
This standard is under the jurisdiction of the National Intraocular Lens Standardization Technical Committee (SAC/TC461).
Drafting organizations of this standard. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Yunnan Chihong International Germanium Industry Co., Ltd., Guangdong Leading Thin Material Co., Ltd.
Co., Ltd., Shanghai Institute of Ceramics Pilot Test Base, Kunshan Jincheng Reagent Co., Ltd., Mingfeng Medical System Co., Ltd., Neusoft Medical
System Co., Ltd.
The main drafters of this standard. Yuan Lanying, Song Guilan, Chen Junfeng, Ni Haihong, Qi Xuejun, Zhao Peng, Liu Guangyu, Du Yong, Li Wenpeng, Lu Yugui,
Sun Shiyun, Chen Lei, Li Xiang, Song Xiaojian, Xin Lili, Wang Dong, Cui Dingfang, Zhu Liu, Zhang Ruofei, Qian Hua, Liang Guodong.
Bismuth Germanate Scintillation Crystal for Positron Emission Tomography Scanner
1 Scope
This standard specifies the product number, technical requirements, testing methods, and testing methods of bismuth germanate scintillation crystal materials for positron emission tomography scanners.
Inspection rules, marking, packaging, transportation and storage.
This standard applies to bismuth germanate (Bi4Ge3O12) scintillation crystal materials for positron emission tomography scanners.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 13181-2002 Scintillator performance measurement method
GB/T 13182-2007 Sodium iodide (thallium) scintillator and sodium iodide (thallium) scintillation detector
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Totalenergypeak
In X or γ radiation measurement, it is equivalent to the peak of the energy spectrum response curve when the energy of the photon in the probe material is all absorbed.
Note. Rewrite the definition 3.1.20 of GB/T 12564-2008.
3.2
Pulse amplitude
When the photocathode is repeatedly irradiated with a light pulse of a certain intensity, the average amplitude of the anode output pulse is generally corresponding to the peak value of the amplitude distribution curve
The pulse amplitude is expressed. The input signal is single-energy X or γ radiation, which is the pulse amplitude corresponding to the peak-to-peak value of the all-energy.
[GB/T 12564-2008, definition 3.3.1]
3.3
Optical transmittance
The percentage of the luminous flux passing through the crystal to the luminous flux of the incident crystal.
3.4
Relative light output
Under the same measurement conditions, the ratio of the pulse amplitude output by the measured scintillator to the pulse amplitude output by the scintillator reference sample.
3.5
Energy resolution
For a given energy, the measure of the smallest relative difference between the energy of two particles that can be resolved.
Note 1.In general applications, the energy resolution is the ratio of the half-height width of the peak of the single-energy particle energy distribution curve measured by a spectrometer to the energy corresponding to the peak position, when
When energy is expressed by pulse amplitude, its ratio is the pulse amplitude resolution.
Note 2.Rewrite the definition 3.1.16 of GB/T 13182-2007.
3.6
Radiation damage
The degree of decrease in light output before and after the scintillation crystal is irradiated by ionizing radiation (X or gamma rays).
Price & DeliveryUS$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 39867-2021: Bismuth germanate scintillation crystal for positron emission tomography
Status: Valid
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