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Beta-ray type film thickness tester BTC-221

Beta-ray film thickness meter BTC-221

From thin to thick
New system that enables high precision measurement

・Greatly improved operability and functions by using a PC
・From thin to thick,Measure with high accuracy
・Measurement is possible even in small areas
・Easy programming, even for special calibration curves
・Easy counting correction, no need to warm up the GM tube

View in Digital Catalog

Features of Beta-Ray Thickness meter BTC-221

Greatly improved operability and functions

The operability and functions are greatly improved by using a personal computer.

High precision measurement from thin to thick

By changing the radiation source, it is possible to measure with high precision from thin film thickness to thick one.

Small area can also be measured

Small areas can also be measured by replacing the mask.There are many masks available.

Easy programming, even for special calibration curves

Multi-point calibration input (2-9 points),Easy programming, even for special calibration curves

Easy count correction

Count correction can be done anytime,Highly accurate measurement can be performed without warming up the GM tube.

Memory for up to 40 calibration curves for measurement

Memory for up to 40 calibration curves for measurement.The stored calibration curve can be copied to other channels.

Calibration curve can be recalibrated with one point correction of material

Calibration curve can be recalibrated with one point correction of material

Setting of upper limit value and lower limit value

You can set the upper limit value and lower limit value of the effective measurement value.

Thickness value and composition ratio can be measured

The alloy film can measure film thickness value and composition ratio.

φIn-pipe measurement of 80 mm or more is possible

Measurement in the pipe,φ80 mm or more is possible

Film thickness values due to measurement errors can be deleted at any time

Film thickness values due to measurement errors can be deleted at any time

Time and unit can be set arbitrarily

Measurement time can be set arbitrarily from 1 to 999 seconds.The unit of measurement can be changed at any time, and the measurement value is automatically converted.

Special accessories for the beta film thickness meter BTC-221

Probe guide MS-11 Probe system H-5 Probe guide RE-5 120° Probe guide RE-5 180°(With scale)
Probe guide
MS-11
Probe system
H-5
Probe guide RE-5
120°
Probe guide RE-5
180°(With scale)

Measurement principle

When a substance is irradiated with beta radiation, part is absorbed and part is transmitted.Some are also transparent.Some are scattered backwards,The dose varies depending on the thickness of the substance and the number of extranuclear electrons (electron number).Until the saturation thickness is reached where the dose increase can not be detected, As the thickness increases, the amount of backscattering increases (or decreases), so the thickness can be measured by comparing the amount of backscattering of the substrate with that of the film.
Therefore, the larger the difference in atomic number between the substrate and the film, the higher the measurement accuracy, and the smaller the difference in atomic number, the lower the measurement accuracy.The film can be measured if the difference in atomic number is at least 10%.

Specification of Beta-Ray thickness meter BTC-221

Model (body) RTC-221 model
Principle Beta-Ray type
Measurement mode 1)Measurement of thickness
2)Beta-ray count measurement
Measurement time 1~999 second Optional setting
Memory capacity 40 Channel
Display By PC monitor screen
Statistical processing Maximum value, minimum value, average value, standard deviation, histogram, upper / lower limit setting
Power supply AC100~240V±10% 50/60Hz、10VA (Body)
Size 280(W)x230(D)x88(H) (Body)
Weight 3.0kg

Note: Specifications are subject to change without notice.

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