Personal Radiation Monitors
The instrument will automatically alarm with an audible signal and blinking display when either the dose rate (0.01 mR/hr to 999 R/hr) or accumulated dose (0 to 1999 R) setpoints are exceeded. The dose is recorded until manually reset and is for use as reference only; it is not intended for legal dose recording. This small device can be worn on a belt, lanyard, or armband. Intrinsically safe models (IS) available.
Availability: Commercially Available
| Manufacturer |
| Ludlum Measurements, Inc. |
| Product Name |
| Personal Radiation Monitors |
| Detection Category |
| Radiological/Nuclear; |
| Detection Principle |
| Semiconductors; |
| Detection Method |
| Semiconductors; |
| Application |
| Personal Radiation Detectors; |
| Product Model Number |
| Model 25 series, 25-IS, 25-IS-1 |
| Equipment Type |
| Instrument |
| Product Synopsis |
| The instrument will automatically alarm with an audible signal and blinking display when either the dose rate (0.01 mR/hr to 999 R/hr) or accumulated dose (0 to 1999 R) setpoints are exceeded. The dose is recorded until manually reset and is for use as reference only; it is not intended for legal dose recording. This small device can be worn on a belt, lanyard, or armband. Intrinsically safe models (IS) available. |
| Availability |
| Commercially Available |
| Technology Readiness Level (TRL) |
| 9 |
| User Feedback Sources |
| Indifferent/No user feedback |
| Supporting Documentation |
| Docs: Ludlum_M25 Series PRMonitors.pdf; |
| Dimensions |
| 3.0 x 2.1 x 0.69 in (7.6 x 5.4 x 1.7 cm) |
| Weight |
| <1 lb.; 5.1 oz (144 g) |
| Power Requirements |
| Lithium Battery; Two lithium coin cell batteries (6,000 hours) |
| Noise Produced |
| 95 dB at 0.3 m (1.0 ft.) |
| Transportability |
| Pocket Size |
| Ruggedness |
| Extreme Temperatures/Humidity |
| Operating Conditions |
| -40 to 65 °C (-40 to 150 °F) |
| Consumables |
| None |
| Solvents/Reagents |
| None |
| Calibration Schedule |
| None |
| Suggested Routine Maintenance |
| None |
| Available Accessories |
| Armband, nylon case |
| Data Analysis Support Equipment |
| None |
| Expected Operational Life |
| Indefinite |
| Shelf Life |
| >5 years |
| Maintenance Cost |
| None |
| Radiological Targets |
| Gamma |
| Sample Introduction |
| Radioactive Particle |
| Sensitivity/Detection Limits |
| mR; 0.01 mR/hr to 999 R/hr |
| Start Up Time (From Cold Start To Sample Ready) |
| < 1 minute |
| Response Time (Sample Application To Output) |
| Continuous (<30 seconds) |
| Total Run Time |
| Continuous |
| Alarm Capability |
| Audible, visual |
| Software Control |
| On-board |
| Other Operational Parameters |
| None |
| Training Required |
| <1 day training |
| Training Available |
| No |
| Manuals Available |
| Yes |
