手持式多功能核辐射检测仪（910 型）反恐应急与刑事技术勘查合规应用介绍
作者：毕思特科技 来源：毕思特科技 浏览数：28 发布时间：2026/4/14 9:09:28
手持式多功能核辐射检测仪（910 型）反恐应急与刑事技术勘查合规应用介绍
【重要合规前置声明】本产品为国家管制类反恐应急、核辐射安全防护专用警用装备，仅面向具备法定执法权限、核与辐射安全监管资质的公安、武警、应急管理、生态环境、司法等国家机关及授权执法单位定向研发、生产与销售，不向任何个人、无资质企业及非授权单位提供。本产品的采购、配备、使用、校准与维护，必须严格遵守《中华人民共和国反恐怖主义法》《中华人民共和国放射性污染防治法》《中华人民共和国人民警察法》《中华人民共和国刑事诉讼法》《放射性同位素与射线装置安全和防护条例》《个人剂量监测管理办法》等国家法律法规与行业标准，必须由经过专业辐射安全与操作培训、取得相应资质的人员规范使用，设备需按期完成法定计量校准，严禁无资质单位和个人违规购置、使用、转让本装备，严禁因违规操作导致的辐射安全事故、人员受照伤害、涉案物证污染与灭失。
产品概述
本手持式多功能核辐射检测仪（910 型），是专为核与辐射恐怖威胁处置、放射性污染突发应急事件、涉核刑事案件现场勘查设计的高可靠性现场辐射监测装备，也是反恐应急处置、刑事现场勘查、法医实验室安全管控体系中的核心专用装备。设备将高灵敏度辐射传感器与工业级强固机身高度集成，可在野外废墟、密闭空间、极端温湿度等恶劣现场环境下，快速、精准识别并量化 α、β、γ 及 X 射线辐射，为一线执法、排爆、勘查人员提供实时辐射水平数据、剂量累计监测与异常辐射预警，是涉核现场初步筛查、警戒区域划定、人员安全防护、涉案放射性物证提取与司法鉴定取样指导的关键刑事技术勘查装备。
技术原理
设备核心采用高性能端窗式盖革 - 米勒计数管作为辐射探测传感器，核心工作原理基于气体电离效应与脉冲信号数字化处理技术。当 α、β、γ、X 射线进入充气计数管后，会引起管内惰性气体发生电离，产生可被检测的电脉冲信号；该信号经设备内置专利放大电路整形、降噪与数字化处理后，通过专属算法完成辐射类型甄别、剂量率换算与计数统计，最终转换为可视化的剂量率、计数率读数与累计剂量数据。设备搭载独特的环境本底跟踪算法，可实时动态校准环境天然辐射本底值，确保测量的高稳定性与快速响应能力，能有效区分环境天然本底辐射与人工异常辐射，哪怕是低剂量、隐匿性的放射源也可快速识别预警，完美适配涉核案件现场的隐蔽放射源排查需求。
核心功能与合规实战价值
设备具备全谱段多射线检测能力，可实现 α、β、γ 及 X 射线的独立与组合检测，通过机身物理开关可快速切换检测射线类型，无需复杂参数设置，即可满足不同类型放射源、不同现场场景的排查需求，无论是 α、β 射线表面污染筛查，还是 γ、X 射线穿透式辐射检测，都可一机完成，大幅提升涉核现场勘查与应急处置的工作效率，避免多设备切换导致的处置时机延误。
设备具备宽量程高稳定性测量性能，有效测量量程覆盖 0.01µSv/h 至 1000µSv/h 等效剂量率，可适配从环境本底水平到高剂量辐射现场的全场景测量需求；搭载专利数字滤波算法，可有效抑制复杂电磁环境、现场工况波动导致的读数跳变与数据波动，保障在刑事现场、应急处置现场等复杂环境下，测量数据的可靠性与准确性，为警戒区域划定、人员防护等级设定、物证安全提取提供精准、可溯源的量化数据支撑，完全符合涉核事件应急处置与司法鉴定的计量溯源性要求。
设备采用工业级强固型便携设计，整机结构紧凑、手持式一体化机身，具备抗高强度冲击、抗跌落、防水防尘特性，耐高低温宽温域工作设计，专为野外废墟、车辆内部、密闭空间、极端天气等苛刻的刑事现场勘查环境优化，无需复杂的开机调试与环境适配，开机即可快速进入检测状态，确保在突发涉核警情、案件现场勘查时随时可用、稳定可靠，完美适配一线执法人员的移动化、野外化实战需求。
设备搭载完备的数据管理与可视化显示系统，配备大屏幕 LCD 显示屏，可同屏显示实时剂量率数字读数与模拟棒图，支持 cpm、cps、µSv/h、mR/h、Bq 等多种辐射单位一键切换显示，具备实时剂量率监测、累计受照剂量统计、超阈值声光报警功能；可通过专用软件连接 PC 端，实现检测数据的批量存储、传输、回溯与分析，可自动生成标准化的检测报告与事件评估报告，为涉核案件的证据固定、司法鉴定、事件处置复盘提供完整、可追溯的原始数据支撑，完全符合刑事案件证据链固定、司法鉴定报告出具的合规性要求。
设备具备低维护长周期校准特性，搭载的高性能端窗式盖革 - 米勒计数管传感器性能稳定、使用寿命长，法定校准周期不超过 5 年，大幅降低了装备长期使用的维护成本与操作复杂度，无需频繁送检校准即可保障设备测量精度持续符合法定计量要求，有效提升了装备的执勤出勤率与一线实战可用性，完美适配基层执法单位、应急处置队伍的常态化备勤、日常安保排查的使用需求。
合规应用场景
本设备仅可由具备法定执法权限、辐射安全操作资质的单位与人员，在授权执法与应急处置范围内规范使用，核心合规应用场景包括四大类：一是反恐与涉核案件应急处置，在应对疑似 “脏弹” 恐怖威胁、非法放射性物质交易、涉核恐怖袭击案件、核材料盗窃案件时，是特警、排爆、核应急处置人员开展现场辐射初步筛查、隐匿放射源定位、污染范围评估、处置过程中人员受照剂量实时监测的核心反恐应急装备，为处置方案制定、现场安全管控、人员防护提供关键数据支撑；二是刑事案件现场勘查取证，在放射性物质投毒、故意辐射伤害、核材料非法持有、盗窃等刑事案件现场，刑事科学技术人员可使用本设备对现场可疑物品、环境表面、痕迹物证进行全覆盖辐射普查，快速发现隐匿的放射性物证，精准锁定放射源位置与污染范围，同时安全指导现场物证提取、样本送检工作，避免勘查人员受到意外辐射照射，保障涉案物证的安全、合规提取与固定；三是公共安全与重大活动应急监测，适用于重大赛事、重要会议、国事访问等重大活动安保工作中，对进入核心区域的人员、车辆、行李、包裹进行无接触快速辐射排查，严防放射性危险物品流入核心区域；也可用于涉及放射性物质的工业事故、交通事故、环境污染事件的应急处置，快速划定安全警戒区域，实时监测现场辐射水平变化，保障救援人员、周边公众的生命安全；四是法医实验室与涉案物证安全管控，在法医实验室、刑事技术实验室设备体系中，可用于对送检的疑似放射性污染样本、扣押涉案物品进行入库检验前的安全筛查，提前识别放射性风险，防止放射性污染在实验室内扩散、造成交叉污染；也可用于对珠宝、矿石、建材、食品等涉案物品的放射性水平筛查，为相关案件的定性、司法鉴定提供科学检测数据。
核心技术参数
设备可检测射线类型包括 α 射线、β 射线、γ 射线、X 射线，有效测量量程为 0.01 µSv/h 至 1000 µSv/h 等效剂量率，核心传感器采用高性能端窗式盖革 - 米勒计数管。设备显示单位支持 cpm、cps、µSv/h、mR/h、Bq 可选，核心数据功能包括实时剂量率显示、累计剂量统计、超阈值声光报警、PC 端专用软件数据传输与分析，法定校准周期不超过 5 年。整机采用手持式一体化设计，高强度工业级机身，具备抗冲击、耐高低温、宽温域工作的物理特性，适配野外、现场等复杂环境使用需求。
合规实战应用案例
- 某市公安局反恐支队接到举报，有人在辖区内非法持有、交易放射性物质，涉嫌非法买卖危险物质刑事犯罪，同时存在涉核恐怖袭击风险。反恐支队联合刑事技术支队、核应急部门赶赴现场开展处置，现场为城郊一处废弃仓库，环境复杂，无法确定放射源的具体位置与类型，现场处置风险极高。处置人员使用本手持式多功能核辐射检测仪，对仓库内部环境、可疑包裹、容器进行拉网式辐射普查，通过设备的快速响应与高灵敏度检测能力，在 10 分钟内即锁定了藏匿于铅罐内的工业放射源，精准测量了现场辐射剂量率与污染范围，快速划定了安全警戒区域，为后续放射源的安全收储、固定证据提供了精准的数据支撑。同时，刑事技术人员通过设备的累计剂量监测功能，全程管控现场勘查、物证提取人员的受照剂量，确保所有处置人员的辐射安全，最终成功查获涉案放射源，抓获犯罪嫌疑人，本案中本设备的快速筛查能力、精准测量性能与人员剂量监测功能，为案件的成功处置、嫌疑人的定罪量刑提供了关键的技术支撑与完整的证据链。
- 某市发生一起离奇中毒死亡案件，死者生前长期出现不明原因的身体损伤、器官衰竭，经法医初步检验排除了常规毒物中毒，怀疑为放射性物质内照射伤害。刑事技术支队勘查人员携带本手持式多功能核辐射检测仪，对死者住所、工作场所、生前常用物品、呕吐物、排泄物样本进行了全面的辐射普查，通过设备的 α、β 射线表面污染检测功能，在死者生前使用的水杯内壁、日常服用的保健品中检测到了异常 α 辐射，成功锁定了放射性核素污染的物证，为法医实验室的精准检验、司法鉴定指明了方向。后续经实验室精准检验，确认了保健品中被人为添加了放射性物质，最终查明系死者家属为骗取保险金实施的放射性投毒杀人案件，侦查人员根据勘查与检验结果，成功抓获犯罪嫌疑人，破获了该起隐蔽性极强的投毒杀人案件。本设备的高灵敏度低剂量辐射检测能力，为案件的定性、关键物证的发现与固定提供了决定性的技术支持，出具的检测数据被司法鉴定意见书、法庭判决全部采纳，成为案件定罪量刑的核心科学证据。
Application Introduction of Handheld Multi-Functional Nuclear Radiation Detector (Model 910)
【Important Compliance Pre-Declaration】This product is a state-controlled special police equipment for anti-terrorism emergency and nuclear radiation safety protection. It is only developed, produced and sold for state organs and authorized law enforcement units with statutory law enforcement authority and nuclear and radiation safety supervision qualifications, including public security, armed police, emergency management, ecological environment, judiciary and other departments, and will not be provided to any individual, unqualified enterprise or non-authorized unit. The procurement, deployment, use, calibration and maintenance of this product must strictly abide by national laws, regulations and industry standards such as the Anti-Terrorism Law of the People's Republic of China, Law of the People's Republic of China on Prevention and Control of Radioactive Pollution, People's Police Law of the People's Republic of China, Criminal Procedure Law of the People's Republic of China, Regulations on the Safety and Protection of Radioisotopes and Ray Devices, and Administrative Measures for Individual Dose Monitoring. It must be operated in a standardized manner by personnel who have received professional radiation safety and operation training and obtained corresponding qualifications. The equipment must complete the legal metrological calibration on schedule. It is strictly prohibited for unqualified units and individuals to illegally purchase, use or transfer this equipment, and it is strictly prohibited to cause radiation safety accidents, personnel exposure injuries, pollution and loss of involved physical evidence due to illegal operation.
Product Overview
The Handheld Multi-Functional Nuclear Radiation Detector (Model 910) is a high-reliability on-site radiation monitoring equipment designed for the disposal of nuclear and radiation terrorist threats, emergency events of radioactive pollution, and on-site investigation of nuclear-related criminal cases. It is also the core special equipment in the anti-terrorism emergency disposal, criminal scene investigation, and forensic laboratory safety control system. The equipment highly integrates a high-sensitivity radiation sensor with an industrial-grade rugged body, which can quickly and accurately identify and quantify α, β, γ and X-ray radiation in harsh on-site environments such as field ruins, confined spaces, and extreme temperature and humidity. It provides real-time radiation level data, cumulative dose monitoring and abnormal radiation early warning for front-line law enforcement, EOD and investigation personnel, and is a key criminal technology investigation equipment for preliminary screening of nuclear-related scenes, delineation of warning areas, personnel safety protection, extraction of involved radioactive physical evidence and guidance for judicial authentication sampling.
Technical Principle
The core of the equipment adopts a high-performance end-window Geiger-Müller counter tube as the radiation detection sensor, and the core working principle is based on the gas ionization effect and pulse signal digital processing technology. When α, β, γ, X-rays enter the gas-filled counter tube, it will cause ionization of the inert gas in the tube, generating a detectable electrical pulse signal. The signal is shaped, noise-reduced and digitally processed by the built-in patented amplifier circuit of the equipment, and then completes radiation type screening, dose rate conversion and counting statistics through the exclusive algorithm, and finally converted into visual dose rate, count rate readings and cumulative dose data. The equipment is equipped with a unique environmental background tracking algorithm, which can dynamically calibrate the natural radiation background value of the environment in real time, ensuring high stability of measurement and fast response capability. It can effectively distinguish the natural background radiation of the environment from artificial abnormal radiation, and can quickly identify and give an alarm even for low-dose and concealed radioactive sources, which perfectly adapts to the needs of concealed radioactive source investigation at the scene of nuclear-related cases.
Core Functions and Compliance Practical Value
The equipment has full-spectrum multi-ray detection capability, which can realize independent and combined detection of α, β, γ and X-rays. The detection ray type can be quickly switched through the physical switch on the body, without complex parameter setting, which can meet the investigation needs of different types of radioactive sources and different on-site scenes. Whether it is α and β ray surface pollution screening, or γ and X-ray penetrating radiation detection, it can be completed by one machine, which greatly improves the work efficiency of nuclear-related scene investigation and emergency disposal, and avoids the delay of disposal opportunity caused by switching multiple equipment.
The equipment has wide-range and high-stability measurement performance, the effective measurement range covers 0.01µSv/h to 1000µSv/h equivalent dose rate, which can adapt to the full-scene measurement demand from environmental background level to high-dose radiation scene. It is equipped with a patented digital filtering algorithm, which can effectively suppress the reading jump and data fluctuation caused by complex electromagnetic environment and on-site working condition fluctuation, ensure the reliability and accuracy of the measured data in complex environments such as criminal scenes and emergency disposal scenes, and provide accurate and traceable quantitative data support for the delineation of warning areas, personnel protection level setting, and safe extraction of physical evidence, fully complying with the metrological traceability requirements of nuclear-related event emergency disposal and judicial authentication.
The equipment adopts an industrial-grade rugged and portable design, with a compact structure and a handheld integrated body, which has the characteristics of high-strength impact resistance, drop resistance, water and dust resistance, and wide temperature range working design. It is specially optimized for harsh criminal scene investigation environments such as field ruins, vehicle interiors, confined spaces, and extreme weather. It can quickly enter the detection state after booting without complex start-up debugging and environmental adaptation, ensuring that it is ready for use and stable and reliable during sudden nuclear-related alarms and case scene investigation, perfectly adapting to the mobile and field actual combat needs of front-line law enforcement personnel.
The equipment is equipped with a complete data management and visual display system, equipped with a large-screen LCD display, which can display the real-time dose rate digital reading and analog bar graph on the same screen, support one-key switching display of various radiation units such as cpm, cps, µSv/h, mR/h, Bq, and has the functions of real-time dose rate monitoring, cumulative exposure dose statistics, and over-threshold sound and light alarm. It can be connected to the PC terminal through special software to realize batch storage, transmission, backtracking and analysis of detection data, and can automatically generate standardized detection reports and event evaluation reports, providing complete and traceable original data support for evidence fixation, judicial authentication, and event disposal review of nuclear-related cases, fully complying with the compliance requirements of criminal case evidence chain fixation and judicial authentication report issuance.
The equipment has the characteristics of low maintenance and long-period calibration. The equipped high-performance end-window Geiger-Müller counter tube sensor has stable performance and long service life, and the legal calibration cycle is no more than 5 years, which greatly reduces the maintenance cost and operation complexity of the equipment for long-term use, does not need frequent inspection and calibration to ensure that the measurement accuracy of the equipment continues to meet the legal metrological requirements, effectively improves the attendance rate of the equipment and the front-line actual combat availability, and perfectly adapts to the needs of normalized duty and daily security inspection of grass-roots law enforcement units and emergency disposal teams.
Compliant Application Scenarios
This equipment can only be used in a standardized manner within the scope of authorized law enforcement and emergency disposal by units and personnel with statutory law enforcement authority and radiation safety operation qualifications. The core compliant application scenarios include four categories: First, anti-terrorism and emergency disposal of nuclear-related cases. In response to suspected "dirty bomb" terrorist threats, illegal radioactive material transactions, nuclear-related terrorist attack cases, and nuclear material theft cases, it is the core anti-terrorism emergency equipment for special police, EOD, and nuclear emergency disposal personnel to carry out on-site preliminary radiation screening, concealed radioactive source location, pollution scope assessment, and real-time monitoring of personnel exposure dose during disposal, providing key data support for disposal plan formulation, on-site safety control, and personnel protection. Second, on-site investigation and evidence collection of criminal cases. At the scene of criminal cases such as radioactive material poisoning, intentional radiation injury, illegal possession of nuclear materials, and theft, criminal science and technology personnel can use this equipment to carry out full-coverage radiation survey on suspicious items, environmental surfaces, and trace evidence at the scene, quickly find hidden radioactive evidence, accurately lock the location of the radioactive source and pollution scope, and safely guide the on-site evidence extraction and sample submission work, to avoid accidental radiation exposure of investigators, and ensure the safe and compliant extraction and fixation of the involved physical evidence. Third, public safety and emergency monitoring for major events. It is suitable for non-contact rapid radiation inspection of personnel, vehicles, luggage and parcels entering the core area in the security work of major events such as major sports events, important meetings, and state visits, strictly preventing radioactive dangerous goods from flowing into the core area. It can also be used for emergency disposal of industrial accidents, traffic accidents, and environmental pollution incidents involving radioactive materials, quickly delineate safe warning areas, real-time monitor the changes of on-site radiation levels, and ensure the life safety of rescue personnel and the surrounding public. Fourth, forensic laboratory and involved physical evidence safety control. In the forensic laboratory and criminal technology laboratory equipment system, it can be used for safety inspection before warehousing inspection of suspected contaminated samples and seized items involved in the case, identify radioactive risks in advance, prevent the spread of radioactive pollution in the laboratory and cross-contamination. It can also be used for radioactive level screening of involved items such as jewelry, ore, building materials, food, etc., providing scientific test data for the characterization of relevant cases and judicial authentication.
Core Technical Parameters
The detectable ray types of the equipment include α-ray, β-ray, γ-ray and X-ray, the effective measurement range is 0.01 µSv/h to 1000 µSv/h equivalent dose rate, and the core sensor adopts high-performance end-window Geiger-Müller counter tube. The display unit of the equipment supports cpm, cps, µSv/h, mR/h, Bq optional, and the core data functions include real-time dose rate display, cumulative dose statistics, over-threshold sound and light alarm, PC-side special software data transmission and analysis, and the legal calibration cycle is no more than 5 years. The whole machine adopts a handheld integrated design, high-strength industrial-grade body, with physical characteristics of impact resistance, high and low temperature resistance, and wide temperature range operation, which adapts to the use needs of complex environments such as field and scene.
Practical Application Cases
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The Anti-Terrorism Detachment of the Municipal Public Security Bureau received a report that someone illegally held and traded radioactive materials in the jurisdiction, suspected of the criminal crime of illegally trading dangerous substances, and there was also a risk of nuclear-related terrorist attacks. The Anti-Terrorism Detachment, together with the Criminal Technology Detachment and the nuclear emergency department, rushed to the scene to carry out disposal. The scene was an abandoned warehouse in the suburban area, with a complex environment. The specific location and type of the radioactive source could not be determined, and the on-site disposal risk was extremely high. The disposal personnel used this Handheld Multi-Functional Nuclear Radiation Detector to carry out a pull-net radiation survey on the internal environment of the warehouse, suspicious packages and containers. Through the fast response and high-sensitivity detection capability of the equipment, the industrial radioactive source hidden in the lead tank was locked within 10 minutes, the on-site radiation dose rate and pollution range were accurately measured, and the safety warning area was quickly delineated, providing accurate data support for the subsequent safe storage and storage of the radioactive source and fixed evidence. At the same time, through the cumulative dose monitoring function of the equipment, the criminal technology personnel controlled the exposure dose of the on-site investigation and evidence extraction personnel throughout the process, ensuring the radiation safety of all disposal personnel. Finally, the radioactive source involved in the case was successfully seized, and the criminal suspect was arrested. In this case, the rapid screening capability, accurate measurement performance and personnel dose monitoring function of this equipment provided key technical support and a complete evidence chain for the successful disposal of the case and the conviction and sentencing of the suspect.
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A bizarre poisoning death case occurred in a certain city. The deceased had long-term unexplained physical damage and organ failure before his death. The forensic preliminary examination ruled out conventional poison poisoning, and suspected it was internal radiation injury from radioactive substances. The investigators of the Criminal Technology Detachment carried this Handheld Multi-Functional Nuclear Radiation Detector, and conducted a comprehensive radiation survey on the deceased's residence, workplace, daily used items, vomit and excreta samples. Through the α and β ray surface pollution detection function of the equipment, abnormal α radiation was detected on the inner wall of the water cup used by the deceased during his lifetime and the health products he took daily, and successfully locked the physical evidence of radionuclide pollution, which pointed out the direction for the accurate inspection and judicial authentication of the forensic laboratory. Subsequent accurate laboratory inspection confirmed that radioactive substances were artificially added to the health products, and it was finally found out that it was a radioactive poisoning murder case committed by the deceased's family to defraud insurance money. According to the investigation and inspection results, the investigators successfully arrested the criminal suspect and solved the extremely concealed poisoning murder case. The high-sensitivity low-dose radiation detection capability of this equipment provided decisive technical support for the characterization of the case, the discovery and fixation of key physical evidence. The test data issued was fully adopted by the judicial authentication opinion and the court judgment, and became the core scientific evidence for the conviction and sentencing of the case.