Low background α, β measuring instrument

Product Overview

HA4100 low-background α, β measuring instrument adopts an overall cabinet design with a high degree of integration. It is a low-background dual-scintillator α, β activity concentration measurement system with single, dual, and quad-channel models. Each detection system is independently designed, controlled, and measured. It can be used alone or simultaneously. It can be used to measure the total α, β activity concentration in a variety of samples such as water samples, biological samples, environmental samples, and aerosol samples.

Product Overview

HA4100 low-background α, β measuring instrument adopts an overall cabinet design with a high degree of integration. It is a low-background dual-scintillator α, β activity concentration measurement system with single, dual, and quad-channel models. Each detection system is independently designed, controlled, and measured. It can be used alone or simultaneously. It can be used to measure the total α, β activity concentration in a variety of samples such as water samples, biological samples, environmental samples, and aerosol samples.

Features

① High sensitivity, low background, easy operation, stable and reliable;

② Integrated cabinet design, high degree of integration;

③ Built-in universal wheel support, saving space and easy to move;

④ Unique waveform recognition technology improves the detection efficiency of the instrument.

Features

① High sensitivity, low background, easy operation, stable and reliable;

② Integrated cabinet design, high degree of integration;

③ Built-in universal wheel support, saving space and easy to move;

④ Unique waveform recognition technology improves the detection efficiency of the instrument.

Technical Parameters

Product Model

HA4100

For 239Puα source (active area Φ25mm) when the 2π efficiency ratio is ≥90%

Background≤0.0032cm-2min-1

When the 2π detection efficiency ratio of 90Sr-90Yβ source (active area Φ25mm) is ≥55%

Background≤0.10cm-2min-1

Alpha/beta crossover performance

The counting ratio of α entering β channel is ≤1% (for 239Pu);

β entering α channel count ratio ≤ 0.1% (for 90Sr-90Y)

Detection efficiency repeatability

α: ≤2%, β: ≤2.5%

Efficiency stability

The instrument is powered on continuously for 24 hours, and the detection efficiency changes α, β ≤ 1%

Background stability

During the 24-hour measurement period, the background count variation was within the range of (Nb±3σ), where Nb was the mean value of the background count and σ was the standard error of the background count.

Technical Parameters

Product Model

HA4100

For 239Puα source (active area Φ25mm) when the 2π efficiency ratio is ≥90%

Background≤0.0032cm-2min-1

When the 2π detection efficiency ratio of 90Sr-90Yβ source (active area Φ25mm) is ≥55%

Background≤0.10cm-2min-1

Alpha/beta crossover performance

The counting ratio of α entering β channel is ≤1% (for 239Pu);

β entering α channel count ratio ≤ 0.1% (for 90Sr-90Y)

Detection efficiency repeatability

α: ≤2%, β: ≤2.5%

Efficiency stability

The instrument is powered on continuously for 24 hours, and the detection efficiency changes α, β ≤ 1%

Background stability

During the 24-hour measurement period, the background count variation was within the range of (Nb±3σ), where Nb was the mean value of the background count and σ was the standard error of the background count.
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