The portable Ludlum Model 702 radiation isotopic measurement system was developed to give end users like first responders a simple tool to quickly locate any abnormal levels of radioactivity and accurately identify the isotopes present.
The instrument is coupled to a 2" x 2" NaI radiation detector whose signal is gain stabilized and automatically calibrates itself via an embedded 40K source. The Model 702 additionally offers several advanced features for well trained experts seeking to perform more detailed analysis either in the field or in a laboratory.
Spectrums can be captured to a removable Compact Flash disk or sent to a PC via an Ethernet connection. Quantum PC software to analyze the spectra more thoroughly is included along with a NiMH battery charger.
Specifications (Radiation Isotope Identifier - 2" x 2" NaI)
PART NUMBER: 48-3643
FUNCTIONS: Nuclide identification, spectrum analysis, dose rate calculation (rem/hr or Sv/hr), total dose, audible search tool.
INTEGRATED ELECTRONICS: Digital signal-processing MCA
ADC TYPE: Base converter 14-bit pipelined-flash
CONV. MODES: Linear 256, 512, 1024 QCC 256, 512 (U.S. Patent 5,608,222)
LLD/ULD: 0 to 100% of FS adjustable in < .01% steps Zero: ±100% of FS adjustable by channels
PULSE PROCESSOR: Trapezoidal filter with adjustable time constant and pulse shape discrimination.
RADIATION DETECTOR: 2" x 2" Nal
DETECTOR SENSITIVITY: 900 cpm/uR/hr
DETACHABLE DETECTOR: Detectors have an integral HV bias supply.
ENERGY RANGE: 18 keV – 3 MeV
DISPLAY: 320 x 240 high brightness 32000-color 3.5” transflective LCD display
I/O: 10/100 Ethernet port and optional RS-232 adapter cable.
POWER: 8 standard NiMH AA batteries and spare battery holder included; alkaline AAs can also be used. Universal AC power adapter included.
WATER/DUST RESISTANCE: IP56
TEMPERATURE RANGE: -4° F to 122° F (-20° C to 50° C)
TRIGGER LISTS: Multiple trigger lists can be selected for different applications, including standard ANSI isotopes, medical, industrial, SNM, or user-defined lists.
LIBRARY CUSTOMIZATION: Modifications of isotopes and their associated energy lines can be done either in the field or using Microsoft Excel®. Essentially no limit to number of isotopes or lines.
EASE OF USE: Setup options can be password-protected for use by non-technical personnel.
CALIBRATION: Automatic calibration (temperature) stabilization with integral low-level 40K source. Advanced calibration routines are available.
CLOCK: Battery-backed real-time clock/calendar.
CONTROLS: 7-key custom keypad with one-thumb operation.
ALARM: Visual (on screen) and Audio (internal speaker or optional headphones)
WEIGHT: 5.4 lbs. (2.45 kg) with Model 702 and batteries
DIMENSIONS: 12” L x 4” H x 5” W (30.5 x 10.2 x 12.7 cm) (excluding detector)