The YD-900 is a neutron ambient dose-equivalent rate meter that can be configured as a portable instrument or a stationary alarm monitor. The manufacturer states that it uses a helium-3 proportional counter inside a polyethylene moderator, with an optional metal GM tube for gamma measurement.
The YD-900 may suit accelerators, neutron-source facilities, border inspection, customs, medical and industrial radiation protection. Procurement teams should confirm helium-3 detector availability, moderator response, gamma rejection, optional gamma channel, calibration field, transport case and whether portable or fixed operation is required.
NRD listing status: This page is a sourcing and quotation reference. Supply, exact revision, documentation, lead time and commercial terms are confirmed for each enquiry.
We will confirm the current revision, configuration, available documents, MOQ, lead time and commercial terms.
The following values are attributed to the manufacturer source page. They are useful for initial model comparison, but the current data sheet, test conditions and final order configuration must be checked before purchase.
| Parameter | Manufacturer-stated value | Buyer check |
|---|---|---|
| Neutron detector | Helium-3 proportional counter | Confirm against the current model revision and quotation |
| Optional gamma detector | Metal GM tube | Confirm against the current model revision and quotation |
| Neutron energy response | 0.025 eV to 16 MeV | Confirm against the current model revision and quotation |
| Optional gamma energy response | 60 keV to 3 MeV | Confirm against the current model revision and quotation |
| Radiation types | Neutron, optional gamma | Confirm against the current model revision and quotation |
| Dose-rate range | 0.1 µSv/h to 100 mSv/h | Confirm against the current model revision and quotation |
| Cumulative dose | 0 to 9,999 mSv | Confirm against the current model revision and quotation |
| Neutron sensitivity | More than 1.5 CPS per µSv/h, manufacturer-stated | Confirm against the current model revision and quotation |
| Response time | 1 second | Confirm against the current model revision and quotation |
| Display | 3.5-inch color touchscreen | Confirm against the current model revision and quotation |
| Power | 8.4 V rechargeable lithium battery | Confirm against the current model revision and quotation |
| Size and weight | 351 x 251 x 246 mm, approximately 9.3 kg | Confirm against the current model revision and quotation |
We will confirm the current revision, configuration, available documents, MOQ, lead time and commercial terms.
YD-900 should be selected by measurement task rather than appearance alone. The category routes below describe common enquiry contexts, not automatic suitability claims.
Describe the operating environment, target radiation, workflow and required evidence when requesting this configuration.
Describe the operating environment, target radiation, workflow and required evidence when requesting this configuration.
Describe the operating environment, target radiation, workflow and required evidence when requesting this configuration.
Describe the operating environment, target radiation, workflow and required evidence when requesting this configuration.
Confirm the detector technology, production revision, firmware, interface language and supplied accessories for the quoted unit.
State the radiation type, expected range, units, background conditions, alarm workflow and operating environment.
Name the required data sheet, calibration scope, test report, standard, issuing body and destination-market documents.
Confirm quantity, MOQ, sample route, lead time, packaging, Incoterms, warranty and after-sales support before payment.
Stock is not claimed on this website. NRD confirms the current production revision, quantity, lead time and shipment terms during the quotation process.
Calibration evidence is confirmed for the exact quoted configuration. Buyers should specify the required standard, laboratory, traceability and report language.
Branding, labels, language, packaging and accessories can be reviewed for qualified quantities. Feasibility, MOQ, sample approval and tooling depend on the supplier route.
This is a B2B quotation product. Configuration, quantity, documentation, destination, shipping and customization can materially change the commercial terms.
A neutron detector measures neutron radiation, which requires detector materials and moderation different from typical gamma instruments.
A helium-3 proportional counter detects neutrons through nuclear reactions inside a gas-filled tube.
A polyethylene moderator slows fast neutrons so the detector can measure them more effectively.
Gamma rejection is the detector ability to avoid reporting gamma events as neutron events.
Ambient dose equivalent is an operational radiation-protection quantity used for area monitoring.
Share your application, required quantity and any OEM requirements. We will review the request and reply with suitable product information and a quotation.
