Windowless alpha/beta counting systems offer one very distinct and important benefit, increased counting efficiency. Without the barrier formed by the window, and because the sample is actually placed in the active volume of the detector, counting efficiency can increase tremendously. Also, because the sample is in the active volume of the detector, there is no air gap present, and counting efficiency is far less dependent on planchet depth. There is a potential trade off with a windowless system. Since the detector is exposed to the sample, it can be contaminated. In practice, this is fairly rare, and is usually due to samples or operations that are not ordinary. A windowless system can reach a lower MDA in the the same counting time as a windowed system, or reach the same MDA in a shorter amount of time.

Protean has invested considerable effort to design windowless systems that are extremely easy to maintain, including all detector operations. The ease of maintenance is delivered in systems that make no compromises in counting performance.

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IPC-650

IPC-650

Single Detector

Automatic Sample Changer

Windowless, Hemispherical Gas Flow Proportional Detector

2" Planchets

50 Sample Capacity

Remote PC Interface

IPC-650-HP

IPC-650-HP

Single Detector

Automatic Sample Changer

Windowless, Hemispherical Gas Flow Proportional Detector

2" Planchets

50 Sample Capacity

Touch Screen Interface

MPC-9000_Series

MPC-900-GFL

Single Detector

Manual Sample Changer

2.25" Dia., Windowless Hemispherical Style Gas Flow Proportional Detector

2" Planchets

Touch Screen Interface

MPC-1000

MPC-1000-GFL

Single Detector

Manual Sample Changer

2.25" Dia., Windowless Hemispherical Style Gas Flow Proportional Detector

Includes cosmic guard detector

2" Planchets

Touch Screen Interface