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GB/T 39867-2021 English PDF

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US$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

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39867-2021	259	Add to Cart	3 days	Bismuth germanate scintillation crystal for positron emission tomography	Valid

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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: 14,118
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). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 39867-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 39867-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 39867-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 39867-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.