Universal Digital MCA Tube Base for Scintillation Spectrometry
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Universal Digital MCA Tube Base for Scintillation Spectrometry
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Designed for both laboratory and field use, this one compact unit contains a high-voltage power supply (HVPS), preamplifier and a full-featured digital MCA.

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  • All-in-one HVPS, preamplifier, and digital MCA
  • Compatible with standard 14-pin scintillation detectors using 10-stage PMTs, including NaI(Tl) and LaBr3(Ce)
  • Optional temperature-stabilized* NaI(Tl) and CeBr3 probes
  • USB 2.0 connection for PC plug-and-play
  • Ethernet 10/100BaseTX (PoE) connection for network applications
  • PHA, MCS, SCA, MSS, List, and Time-stamped List modes
  • Fully supported by Genie™ 2000 software and programming libraries
  • Optional software development kit with examples
  • Diagnostic web GUI
  • Compatible with Model 727 shield


Osprey® digital MCA from Mirion is much more than a tube base MCA for scintillation detectors. Besides the standard PHA mode of operation, it includes MCS, SCA, Multispectral Scaling, List, and Time-stamped List modes. With both Ethernet and USB 2.0 interfaces, the Osprey digital MCA is designed for remote or local operation. Plus, three user-configurable I/O ports provide maximum flexibility for data and control signaling.

An issue with scintillation detector spectroscopy is peak shifting due to changes in environmental temperature. Osprey digital MCA, teamed with the Mirion NAIS-2x2 stabilized NaI(Tl) probe, solves the problem with patented* built-in LED stabilization technology.

*US Patents 7,005,646 B1 and 7,049,598 B1


Nuclear Science Experiments for Teaching Laboratories
Software Downloads

Release Date: 6/27/2014


This document provides information regarding the latest software and firmware release for the OSPREY MCA.

Major changes and bug fixes:

Incorporated a new default web configuration and status page, while maintaining backwards compatibility with the existing web page.

SPR C4116350 - Osprey Mass Storage can become corrupted resulting in device being un-usable

SPR C2361409 - BLR set to wrong value when dead time is between 50%-62%

SPR C9208285 - Device may crash if a requested parameter list includes a string parameter and elapsed time

SPR C3861219 - Exception handler added to allow device recovery from lockup

SPR C10119410 - Spectrum reconstruction affects List/TList performance

SPR C8763942 - Device may lock up during asynchronous GetSpectrum requests

SPR C2430991 - Error when GPIO Functions #22 and #27-29 selected

SPR V9732585 - AUX CNTR in Manual Dependent mode produce no data records

  • Install the USB drivers before connecting the OSPREY to the host computer. The installation is described in the user manual under Installing the USB Driver section. Driver installation is only required for Windows based systems. V1.0.4 Osprey firmware is compatible with all Osprey MCAs shipped prior to this release. Refer to the Osprey User's documentation for instructions updating your device.

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Application Notes
NaI/Osprey® Based System for Real-Time Monitoring of Radioactivity in Pipes


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