SMACH RP6100 High-Range X- and γ-Ray Dose Rate Meter
| Brand | SMACH |
|---|---|
| Origin | Fujian, China |
| Manufacturer Type | Authorized Distributor |
| Country of Manufacture | China |
| Model | RP6100 |
| Instrument Type | Radiation Dose Rate Meter |
| Detector Configuration | Dual Detector (NaI(Tl) Scintillator + GM Tube) |
| Dose Rate Range | 0.01–200.00 µSv/h (optional extended range: 0.01 µSv/h–10 mSv/h) |
| Accumulated Dose Range | 0.00 µSv–999.99 Sv |
| Sensitivity | ≥500 cps per µSv/h (relative to ¹³⁷Cs) |
| Energy Response | 15 keV–3 MeV |
| Relative Measurement Uncertainty | ≤±8% at 200.00 µSv/h |
| Measurement Interval | 5–120 s (user-configurable) |
| Display | Color LCD with adjustable backlight |
| Alarm Functions | Programmable dose rate & accumulated dose thresholds, overload, low-battery, and detector fault alerts |
| Data Logging | Time-stamped measurement records with query capability |
| Power Supply | Two standard No. 1 (D-cell) batteries |
| Power Consumption | ≤200 mW (excluding backlight) |
| Weight | 1.35 kg (including batteries) |
| Dimensions | 420 × 180 × 88 mm |
| Housing | Anodized aluminum alloy |
| Optional Features | Door interlock interface, wireless mesh networking module, USB/RS232 data export |
Overview
The SMACH RP6100 High-Range X- and γ-Ray Dose Rate Meter is a field-deployable radiation survey instrument engineered for accurate, real-time assessment of ambient ionizing radiation fields in mixed-energy environments. It employs a dual-detector architecture—integrating a thallium-doped sodium iodide [NaI(Tl)] scintillation crystal for high-sensitivity, low-to-medium energy photon detection and a Geiger-Müller (GM) tube optimized for extended-range, high-dose-rate response—to achieve broad spectral coverage from 15 keV to 3 MeV and a dynamic dose rate span of 0.01 µSv/h to 200.00 µSv/h (extendable to 10 mSv/h). This configuration enables robust performance across diverse radiation scenarios, including low-level environmental monitoring and high-intensity industrial or emergency response settings. The instrument complies with fundamental requirements of IEC 60846-1:2014 (Radiation protection instrumentation — Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation), and its energy response profile supports reliable measurements under variable photon spectra typical of ¹³⁷Cs, ⁶⁰Co, and ²⁴¹Am sources.
Key Features
- Dual-sensor design combining NaI(Tl) scintillation and GM tube technologies for enhanced sensitivity and extended linear range
- Color LCD display with user-adjustable backlight intensity for operation under low-light or outdoor conditions
- Real-time and programmable timed measurement modes (5–120 s integration intervals)
- Simultaneous measurement and display of ambient dose equivalent rate (µSv/h), absorbed dose rate (µGy/h), cumulative dose (µSv/Sv), and count rate (CPS)
- Fully configurable alarm thresholds for both dose rate and accumulated dose, with audible, visual, and vibration alerts
- Comprehensive diagnostic feedback: low-battery warning, detector failure indication, and dose-rate overrange detection
- On-device storage of time-stamped alarm events and measurement logs, accessible via built-in query interface
- Rugged anodized aluminum housing rated for field use; IP54 ingress protection against dust and water splashes
- Low-power architecture enabling >200 hours of continuous operation on two D-cell alkaline batteries
Sample Compatibility & Compliance
The RP6100 is designed for direct measurement of unshielded or lightly shielded X- and γ-ray fields in air, without sample preparation. Its energy response has been validated against reference radiation qualities per ISO 4037-1:2019 (X- and gamma-reference radiations for calibrating dosemeters and doserate meters). The instrument meets essential safety and metrological criteria for use in occupational radiation protection programs compliant with IAEA Safety Standards Series No. GSR Part 3 and national regulatory frameworks aligned with EURATOM Directive 2013/59. While not certified for clinical dosimetry per IEC 61674, it fulfills routine area monitoring requirements under ISO 20553:2019 (Radiological protection — Monitoring for the purpose of radiation protection of workers in nuclear facilities) and supports GLP-aligned recordkeeping through timestamped logging.
Software & Data Management
Data export is supported via optional USB or RS232 interface using vendor-provided PC software (RP-Link v3.x), which enables batch download, CSV-formatted report generation, and chronological visualization of dose trends. All stored records include UTC timestamps, measurement mode, detector active status, and alarm trigger flags. Audit trail functionality ensures traceability of configuration changes and calibration history. The firmware implements non-volatile memory write protection to prevent accidental log corruption and supports password-protected parameter modification—facilitating compliance with internal QA procedures and preparatory documentation for ISO/IEC 17025:2017 laboratory accreditation.
Applications
- Routine area monitoring in nuclear medicine departments, radiotherapy bunkers, and PET cyclotron facilities
- Environmental surveillance around NORM/TENORM sites (e.g., phosphate processing, oilfield scale management)
- Regulatory compliance checks in industrial radiography, gamma sterilization plants, and irradiation facilities
- Emergency response screening during radiological incidents or orphan source recovery operations
- Field verification of shielding integrity and dose rate gradients in decommissioning projects
- Training and demonstration in radiation safety officer (RSO) certification courses
- Baseline surveys prior to construction near legacy nuclear sites or uranium mining regions
FAQ
What radiation types does the RP6100 measure?
The RP6100 is calibrated for X- and gamma-ray photons only. It is not sensitive to alpha, beta, or neutron radiation.
Can the RP6100 be used for personal dosimetry?
No. It is an area survey meter intended for environmental and workplace dose rate assessment—not a personal dosimeter meeting ISO 15382 or IEC 62387 requirements.
Is energy compensation applied across the full 15 keV–3 MeV range?
Yes. The NaI(Tl) detector incorporates passive energy compensation filters, and firmware-based correction algorithms are applied per ISO 4037-3:2019 reference spectra.
How is calibration traceability established?
Each unit ships with a factory calibration certificate traceable to CNIM (China National Institute of Metrology) or accredited third-party laboratories operating under ISO/IEC 17025.
Does the RP6100 support external probe connectivity?
No. Detector assemblies are integrated and non-modular; however, optional door interlock and mesh networking modules interface via dedicated I/O ports.
