Alpha Probe
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Alpha Probe
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The SA-100 probe for measurement of surface contamination is designed to be used with any CSP™ survey meter.

Get More Info Data Sheet


  • Alpha surface contamination measurement
  • 100 cm2 ZnS(Ag) scintillation detector
  • Belongs to CSPfamily
  • Calibration via PC
  • Easy removable grid for decontamination


Calibration and QA measurements can be performed directly with the probe, without using an instrument, by connecting the probe to a computer with CANBERRA Smart Probe Software (CSPS), allowing your instruments to remain deployed in the field. It can also be connected via CSP-COM modules to integrate third party system and behave as a contamination sensor sub-assembly.

Once calibrated, SA-100 is ready to be used as a plug and play probe to start a QA measurement in CPM, DPM, DPM/100 cm2 with US units survey meters; or c/s, Bq, Bq/ cm2 with SI units survey meters.

A SA-100 includes a protection grid that is very easy to remove for decontamination purpose. Even with the grid detached, the probe remains operational and the whole assembly stays light tight. The entrance window is attached on a removable metallic frame that is fixed on the probe body with flat screws and is quickly changed, reducing the service time.

The SA-100 probe can be upgraded (probe’s firmware) via CSPS, a USB cable and a PC.


Software Downloads



Follow CSPS user manual upgrade procedure to load new firmware into CSP probe of interest.

This document describes the changes between previous firmware version and any known issues.

RELEASED VERSION: 91629_A_V-2011-01-24.HEX

· SA20 probe P/N: EM75270
· SA20-2 probe P/N: EM90062
· SA32 probe P/N: EM90666
· SB20 probe P/N: EM74672
· SAB100 probe P/N: EM75864
· SABG100 probe P/N: EM81833
· SA100 probe P/N: EM75863
· SB100/A probe P/N: EM75862
· SB100/B probe P/N: EM82069
· SG1-R probe P/N: EM75860
· SG2-R-A probe P/N: EM75861
· SX2-R-A probe P/N: EM78677
· SPAB15 probe P/N:EM78766

New Features:


Known Isuues:

HV failure not active for SPAB15 probe

The status bit 5, power supply failure, is not functional.


SG1-R and SG2-R probes can show a sporadic saturation due to a timing conflict between the analog to digital conversions made in the probe

The initialization time is now set to 30s instead of 20s. 20s was too short to cover the necessary stabilization time of some SG2-R probe

The period of FRAM integrity check is now set to 30s instead of 20s. Because it is
synchronized with the initialization bit


Need a CSPS version higher than V2.00B to uses the 'firmware update' and 'writing
defaults parameters' functions

Need a Radiagem firmware version higher than V2.19


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