NORM-PKN Radiation Detection System

Features Portable Scaler / Ratemeter, Pancake G-M and NaI Scintillaton probe

NORM = Natrually Occuring Radioactive Material

The NORM-PKN includes the DSM-525 dual probe, alarming scaler and ratementer, the HP-265 Pancake Probe (CPM) and GSP-1 NaI Scintillation probe (Dose Rate). The utilization of two probes is ideal for detecting NORM and TENORM radiation. The Pancake and Scintillation probes are both connected to the instrument simultaneously, allowing the user to effortlessly swap probes, at any time without having to disconnect or power down. The instrument features a large digital display, scaler function (counts per unit of time), display error indications, and audible/visual Alarms. Scaler time internal and alarm thresholds are user-adjustable. For those who prefer a flatter energy response in the scintillation probe, we recommend the NORM-PKP.

DSM-525 Ratemeter Specifications

Input Sensitivity: 0.05 Volts
Units: CPM, mR/hr, KCPM, CPS, uR/hr, R/hr, uSv/hr, mSv/hr, Sv/hr
Threshold Variable: from 0-100% of input signal
Display: 4 Digits 19 mm high, LCD with Led Backlight
Display: Back light Push Button ON for 30 seconds Auto Off
Dose Ranges: # 1 Probe 0.0 μR/hr to 9999 R/hr & 0.0 μSv/hr to 999.9 Sv/hr
Dose Ranges: # 2 Probe 0.0 μR/hr to 9999 R/hr & 0.0 μSv/hr to 999.9 Sv/hr
Scaler Ranges: 0-9,999 cps, 0-9999 cpm & 0-9999 Kcpm
Scaler Count Time Ranges: 10 second increments to 2500 seconds
Calibration Controls: Standard 12 turn Potentiometer for each range
Range: Adjustment Auto-ranging
Electrical Linearity: ±5%
Response Time Slow: 20 seconds FS, Fast: 4 Seconds FS
Drift: <5%
Environmental: -20 deg F (-28 deg C)-140 deg F (60 deg C) | 5-95% RH IPX4 Housing
HV: 1 & 2 ( Separate Adjustment) Adjustable 300-1500 VDC | Regulation ±1%
Audio Front panel switch: water & solvent resistant
Battery: six AA batteries, Nominal 200 hours operation
Dimensions: 5.5" (14cm) H X 4" (10cm) W X 7" (18cm) L
Weight: 2.5 lbs (1.1kilo) W/ Batteries
Construction: Heavy Duty Cast Aluminum & Stainless Steel
Alarm: 5-95% of full scale
Data output: 9 Pin Serial RS-232 — Panel manual data switch (optional, but no extra cost)

GSP-1 NaI Scintillation Probe Specifications

The GSP-1 Scintillation probe is useful for moderate energy gamma survey at the microR level. Energy response ranges from 50 keV to 2 MeV. The GSP-1 will function well with most survey meters, ratemeters, single channel analyzers, and multi-channel analyzers. This scintillation detector is commonly used with Johnson Nuclear Survey Meters. This Sodium Iodide probe features rugged aluminum housing with magnetic shielding. The BNC connector allows for easy field replacement.

Operating Voltage 600-900 vdc
Wall Thickness 40 mg/cm2
Range 0-5,000 uR/hr
CPM -mr/hr(Cs-137) 175 cpm
Energy Response 60keV - 2 MeV gamma
Nominal Background 1800 cpm
Sensitive Area 1" x 1"
Dimensions 1 7/8" dia x 6" L
Environmental -20° F[-28° C]-140° F[60° C] | 5-95% RH non-condensing - IPX4
Weight 8oz

HP-265 G-M Pancake Probe Specifications

The 2.5 inch pancake G-M probe is ideal for general purpose survey. This G-M probe detects alpha, beta, and gamma radiation. The HP-265 measures ¹⁴C, ³²P, ³⁵S and ¹³⁷Cs with notable efficiency.

Description: Long life halogen pancake G-M detector with 1.6 mg/cm² End Window
Efficiency (4pi geometry): Typically 5%-C-14; 22%-Sr-90/Y-90; 19%-Tc-99; 32%-P-32; 15%-Pu-239, Gamma dose to 200 mR/hr (Based on ¹³⁷Cs calibration)
OperatingVoltage: 900 vdc
Window Thickness: 1.6mg/cm2
CPM/mR/hr: (137CS): 2,500
Energy Response: 3.5 MeV alpha, 20 MeV gamma, 100 keV beta
Sensitive Area: 15 cm²
Finish: Polyurethane Coated Aluminum
Dimensions: 2.75" dia. X 11" long
Weight: 16 ounces
Environmental: 20º - 60ºC, 5% - 95% RH non-condensing---IPX4
Construction: Polyurethane coated aluminum probe housing, nylon coated stainless steel probe clip