Authorised Indian Distributor
Saxsons Group
New Delhi, India · Since 1997
Compact ambient neutron dose-equivalent-rate monitor H*(10) for cyclotron facilities, PET production centres and particle accelerator workplaces. Two adjustable alarm levels with optical and audible indication; autonomous local operation or full integration into the site RMS. Suitable for indoor and outdoor deployment under AERB radiation-safety expectations.
| Measured quantity | Ambient dose equivalent rate H*(10) for neutron radiation |
| Detector type | Neutron-sensitive detector head (datasheet specifies model) |
| Operating mode | Autonomous local monitor with on-board display and alarms, or integrated into the RMS server |
| Alarm levels | Two adjustable levels per channel; optical + audible indication |
| Host interfaces | RS-485 + Ethernet (per the manufacturer datasheet) |
| Operating environment | Indoor and outdoor; IP-rated enclosure for vault-side and bunker installation |
| Power | Mains + optional UPS; tolerant of brief outages without alarm-state loss |
| Compliance framework | AERB radiation-safety expectations for cyclotron and PET facility installations |
| AERB status | Type-test paperwork supplied; site-level installation per the radiation-safety officer |
| Documentation | Datasheet, calibration certificate, commissioning records, AERB compliance paperwork |
Neutron field monitoring — cyclotron vault to spent-fuel store
Neutron dose-rate monitor at the vault interlock door confirms the field has dropped to safe levels before personnel entry. Two alarm thresholds gate the maintenance entry sequence: clear-for-entry and quarantine-on-rising-field.
PET tracer production neighbouring the cyclotron vault accumulates a neutron field during irradiation runs. The Neutron Monitor documents the workplace neutron exposure for radiopharmacy staff and feeds the RMS personnel-dose record.
Heavy-ion and high-energy accelerator workplaces produce mixed gamma-neutron fields. The Neutron Monitor covers the neutron channel; pair with the area gamma monitor for the complete field characterisation at the workplace.
Spent-fuel pools and high-level waste stores produce significant neutron flux. Continuous monitoring with alarm thresholds is required under most national radiation-protection frameworks.
Calibration laboratories producing reference neutron fields use the Neutron Monitor as a workplace safety monitor — distinct from the metrology reference instrument under calibration.
During cyclotron commissioning, baseline neutron field maps are generated by sweeping the area with Neutron Monitor instruments. The baseline becomes the comparison point for routine operational monitoring.
Ambient dose equivalent rate H*(10) is the ICRP-defined operational quantity for area neutron monitoring. The Neutron Monitor reports directly in H*(10) so the field map maps onto workplace-dose limits without conversion factors that have to be defended at AERB inspection.
A small site can deploy a single Neutron Monitor as a standalone local alarm at the vault entry. A multi-monitor site can connect the same unit into the RMS server for centralised dose-rate trending and alarm management. The instrument is the same — the deployment scales with the site.
Cyclotron vaults, particle-accelerator workplaces and waste-storage stores are hostile environments — temperature swings, dust, occasional humidity. The Neutron Monitor enclosure is rated for indoor and outdoor unattended operation, so the install location is set by radiation physics, not by the instrument's environmental tolerance.
Manufacturer datasheet. Contact Saxsons for AERB documentation, calibration scheduling and India pricing.
Neutron Monitor
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Contact Saxsons Group for neutron dose-rate monitor supply, AERB compliance paperwork, site survey and India installation support.