Electronic Personal Dosimeter Model 23-1 (mSv)

Open Section I: Dosimeters, Monitors, Meters, Check Source & Lead Cases(PDF) to view related products. (Opens in a new tab)

Electronic Personal Dosimeter Model 23-1 (mSv)

Features

• Low Weight and Slim Design
• X-ray and Gamma Radiation Monitoring
• Audible Alarm
• 600 Record Data Logging Option Available

The Ludlum Model 23-1 mSv Electronic Personal Dosimeter is a compact and lightweight (60 g / 2 oz) pen-type personal dosimeter. It is ideal for the measurement and general monitoring of gamma and X-ray radiation in medical and laboratory environments, as well as any controlled or restricted area where personal radiation monitoring is required or desired. The unit is sensitive to a wide range of energies from 35 keV to 3 MeV. Dose, Dose Equivalent Rate, and alarm values are easily seen on the four-digit LCD screen. An audible alarm is activated if the dose or dose rate exceeds the preset value of the dosimeter. The alarm set points are adjustable from the face of the unit.
The optional Model 23 Series Dosimeter Setting Device and Software Kit (see Options tab below) can be used to configure the dosimeter settings and to quickly take data directly from the dosimeter via infrared communication to a PC. Up to 600 data points can be stored in the dosimeter. Note that all collected data is erased when the dosimeter is turned off, so the data must be transferred before the dosimeter is turned off in order to be recorded.

Specifications
Radiation Detected: Gamma and X-ray (35 keV to 3 MeV)
Detector: Silicon semiconductor

Measurement and Display Range
Accumulated Dose: 0.001 mSv to 999.9 mSv
Dose Rate*: 0.001 mSv/h to 999.9 mSv/h
Accumulated dose data is automatically deleted when the Model 23-1 is switched ‘On’.

Display: 4-digit OLED with indicators for dose, dose rate, operating time, and alarm
Accuracy: ≤ ±10% (0.01 to 999.9 mSv (1.0 mrem to 99.99 rem), 137Cs)
Energy Response: ≤ ±20% (60 keV to 1.5 MeV, 137Cs)
Angular Response: ≤ ±20% (Up to ± 60 degree vertical and horizontal, 137Cs)
Dose Rate Linearity*: ≤ ±10% (137Cs)
Alarm Volume: Approximately 60 dB (at 20 cm)
Data Logging: Up to 600 records (optional IR reader required for data transmission to PC)

Environment: -10 to 40 °C (14 to 104 °F)
≤ 90% relative humidity (non-condensing)

Power: One each coin-type lithium battery (CR2450, P/N 21-8639)
Battery Life: 720 hours (without alarm / communication)

Size (H x W x D): 110 x 30 x 12 mm (4.3 x 1.2 x 0.5 in.)
Weight: 60 g (2 oz.)

*Warning: This dosimeter may not measure pulsed radiation accurately.

Optional Item: Infared Reader/Software  Item #343-210