Posted by on Dec 23, 2014 in | 0 comments


The Model MCA2500R is a new, fully digital Multi-Channel Analyzer designed for NaI based nuclear spectroscopy across a broad spectrum of applications. The new design offers many new features previously reserved for far more expensive MCA systems. With a built in 10/100 Ethernet communication protocol, this model offers both speed and network application flexibility. Throughput has been improved to 75,000 cps and new digital outputs offer controls for sample changers, external alarms or other auxiliary components. The MCA2500R is also a core component to our spectroscopic area monitors, used for medical, industrial and security monitoring or radiation in real time.

Call 860-228-0487 for pricing.



The MCA2500R is a stand-alone gamma spectrometer designed for use with scintillation detectors including NaI and LaBr. It is packaged as a peripheral to the PC, and one or more units can be connected via Ethernet. The MCA2500R features digital pulse processing using a 50 MHz 14-bit ADC, with software control over the trapezoidal filter shaping time. The system can operate either as a standard 1024-channel MCA in linear mode or as a 512-channel MCA in QCC™ (Quadratic Compression Converter™) mode. In QCC mode, the system delivers uniform peak resolution from 20 to 3000 keV with 512 channels of resolution. The MCA2500R includes the QuantumMCA software. All hardware setup and calibration functions are made through QuantumMCA. For ease of setup, the software performs automatic adjustments of the detector bias and gain. For applications that require quantitative analysis, PGT’s Quantum family of software packages has a number of software options that will satisfy your needs.


—Laboratory Instrumentation
—Low-cost teaching instrument
—Wipe testing
—Area monitoring


—Digital pulse processing with shaping times from 40 ns up to 10 us
—Maximum throughput: over 75,000 cps
—Built-in dead time correction
—QCC mode: 256 or 512 channels; linear mode: 256, 512, or 1024 channels (2048 channel version available)
—Maximum counts per channel: 231-1 (over 2 billion)
—Integral software-controlled bias supply
—TCP/IP networking over Ethernet supports many units and long distance between desktop and instrument
—Multi-unit installations easily configured using Compact Flash cards
—Software compatible with earlier Quantum MCA products


Detector Connections:
SHV high voltage, BNC signal

External Outputs:
1 dry contact relay (120V@2A max) and 2 open collector contacts (12V@0.5A max)
TTL level SCA output; Digital ‘amplifier’ output

Integrated Electronics:
Digital signal-processing MCA

Energy Range:
18 keV – 3 MeV typical, user selectable in Quantum Software

Type: Base converter 14-bit pipelined-flash
Conv. Modes: Linear 256, 512, 1024 (2048 optional)
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 (40ns – 10ms)

Bias Supply:
0 to +1200 V in 1-V steps (computer controlled);
other bias supplies available on special orders

Controller I/O:
10/100 Ethernet port

90-247 VAC, 50-60 Hz with universal power converter (included);
or 9-16 VDC @ 500mA direct input for use with batteries;
Typical power consumption: 6 watts ; Built-in self-resetting 1.5A fuse

1.7 lb. (0.77 kg)

6.3” L x 6.3” W x 2.2” H (16cm x 16cm x 5.5cm)

Temperature Range:
-20 to 50°C

Battery-backed real-time clock/calendar

Remotely operated through PC software

Patented Technology:
Quadratic Compression Conversion (QCC)

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