A small, lightweight, high-resolution semiconductor detector for gamma rays that can be used at room temperature, for quality inspection of radioactive drugs, nuclear physics research, decommissioning, and more.
The GR1 is a gamma-ray detector that uses a large-volume CdZnTe semiconductor detector measuring 10x10x10mm. It is compact and lightweight, approximately 25x25x63mm (60g), yet it is a complete gamma-ray spectrometer with an integrated 4k channel MCA. The energy resolution (FWHM) of a typical NaI(Tl) scintillation detector is about 7%, but the GR1 has a high energy discrimination capability of less than 2.5% (at 662 keV). Additionally, it does not require cooling to liquid nitrogen temperatures like Ge semiconductor detectors, making it ready for use at any time without incurring running costs. Operation is straightforward; you can start measurements immediately by connecting the GR1 to a PC (Windows 10 or higher) using a commercially available USB cable. A basic control program is provided free of charge. The GR1 can perform spectral measurements with excellent energy resolution even under high dose rates of approximately 1 mSv/hr.
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basic information
【Device Specifications】 Size: Approximately 25x25x63mm Weight: Approximately 60 grams Measurement Energy Range: 30 keV – 3000 keV (0.03 MeV – 3 MeV) Energy Resolution: ≦2.5% (approximately 17 keV) (at Cs137 662 keV) Crystal: 10mm x 10mm x 10mm CdZnTe Cooling: Operates at room temperature Hygroscopicity: None Interface: USB Importer and Distributor Niki Kogei Co., Ltd. niki_sales@nikiglass.com
Price range
P5
Delivery Time
Applications/Examples of results
- Nuclear physics field - Accelerator-related - Decommissioning-related - Nuclear security-related - RI quality control - Environmental measurement - Health physics-related - Educational purposes
Detailed information
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GR1 main body photo
Line up（5）
| Model number | overview |
|---|---|
| GR1+ | High-resolution type with FWHM below 2.0% (at 662 keV) |
| GR1A | With analog output, FWHM below 2.5% (at 662 keV). Convenient when used in conjunction with other measurement systems. |
| GR1A+ | High-resolution version of GR1A, FWHM below 2% (at 662 keV) |
| GR05 | 5x5x5mm CdZnTe semiconductor detector, FWHM below 2.5% (at 662 keV) |
| GR05+ | High-resolution type of GR05, FWHM below 2% (at 662 keV) |
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Company information
Niki Kogei Co., Ltd. imports and sells various products, including radiation measurement devices, X-ray non-destructive testing equipment, goniometers, X-ray optical instruments, as well as refrigeration units and bio-sample coolers.