PM-10, Low Energy Scintillation Detector for Gamma Radiation
Description
PM-10, Low Energy Scintillation Detector for Gamma Radiation
The PM-10 is a scintillation detector with high sensitivity for the detection of low energy gamma and X-ray radiation.
It is an external probe for a ROTEM radiation meter RAM DA-3-2000
It can be optimized for the detection of I-125 and other low-energy gamma emitters (option).
The high efficiency of the PM-10 provides a minimum detectable level (MDL) of 0.35Bq/cm2 (approximately 1.10-5 µCi/cm2 surface contamination of 125I.
The PM-10 can be connected to the RAM DA-3-2000 portable survey meter as a highly sensitive effluent detector.
The PM-10 contains a highly efficient, hermetically sealed, NaI(Tl) scintillator, 2" diameter and 0.04" thick, coupled to a 2" photomultiplier tube encased in a rugged, splash proof housing for protection against shock, vibration and humidity.
The probe also contains a high voltage power supply, single channel analyzer (SCA), pulse shaper, GM saturation indicator, detector identifier and malfunction detection circuitry.
This configuration minimizes noise, improving sensitivity and stability.
Technical data:
Count rate measuring range: 0- 50,000cps
Radiation detected: Low energy gamma 10keV to 80keV
Scintillator: NaI (TI) , Ø2", 0.04" thick. Window of 1mm (0.001")
Surface sensitivity (in contact):
| Isotope | Sensitivity | MDL |
| (cpm/Bq/cm²) | Bq/cm² | |
| 51Cr | 4.6 | 150 |
| 125I | 460 | 1.50 |
| 131I | 90 | 7.50 |
| 99mTc | 150 | 4.50 |
| 90Sr+90Y | 280 | 2.50 |
| 36Cl | 8.0 | 85 |
| 210Pb | 95 | 7.40 |
| 32P | 180 | 4.0 |
Minimum detectable level calculations are based on background.
Energy calibration: Software calibrated single channel analyser (SCA) within the energy range ±5keV (minimum)
Temperature range: -10°C to +50°C (150°F to +122°F)
Humidity range: 40% to 95% RH (non condensing)
Dimensions: 290mm x 70mm (11.4" x 2.8")
Weight: 1.25kg (2.8lbs)
Casing: Aluminium, thickness: 1mm (0.04"), splash-proof, IP65
Output signals: TTL pulses
Detector status: ID, OK, malfunction, overflow
One of the optional cables is required to connect the probe to the meter:
BAK-0420 1.5m straight connection cable
BAK-0490 1.5m coiled connection cable