AT1329
Alpha and beta counter

Application

Alpha and beta counter is intended for simultaneous or separate measurement of a gross alpha and beta gross activity in various samples.

Sample counter can be used to:
- Measure gross alpha and gross beta activity of counting samples based on special aerosol filters
- Measure gross alpha and gross beta activity in "thick-layer" counting samples prepared from material (e.g. by evaporation, or any other method of preparing "thick-layer" sample)
- Measure gross alpha and gross beta activity in "thin-layer" counting samples prepared from material (e.g. by electrolytic deposition)
- Measure activity, flux density, external alpha and beta radiation for "thin" sources
- Control radiation contamination of surfaces by a smear method

Features

Datasheet for AT1329

Catalogue from ATOMTEX

Instrument control and processing of measurement information is realised by external PC
Possibility to use custom calibration
Selectable units of measurement
LED stabilization of measurement tracts
Lead passive background radiation protection
Database of measurement for storage results
Methodological support of measurements

Specification

AT1329 Alpha and beta counter

Detectors type

АТ1329 (α and β channel): 'Phoswich' detector:
Plastic 28 sq.cm with ZnS(Ag) layer 28 sq.cm
АТ1329А (α channel): ZnS(Ag), 28 sq.cm
АТ1329B (β channel): Plastic, 28 sq.cm

Energy range

3 – 7 MeV (α channel)
155 keV – 3.5 MeV (β channel)

Sensitivity

≥0.25 cps/Bq (to Pu-239 alpha radiation)
≥0.30 cps/Bq (to Sr-90+Y-90 beta radiation)

Limit of intrinsic relative measurement error

±20%

Measurement range of gross activity

0.01 – 10000 Bq (α channel)
0.1 – 10000 Bq (β channel)

Minimum measured activity for 1h of measurement time

0.02 Bq (α channel of Pu-239)
0.28 Bq (β channel of Sr-90+Y-90)

Background count rate

0.001 cps (α channel)
0.75 cps (β channel)

Dimensions

230х230х290 mm

Weight

21 kg (AТ1329)
9 kg (AT1329A)
21 kg (AT1329B)