TERRA-P+

Dosimeter-Radiometer MKS-05 «Terra-P+»

Terra-P+ is a new version of world-known dosimeter TERRA-P, launched by Ecotest TM in 2011. The device gained a range of new features. It has 5 independent measuring channels with alternate indication of data on the single liquid crystal display with digital backlight. From now a household dosimeter Terra-P+ can measure surface beta-particles flux density with capability of automatic subtraction of gamma background!

345 

Description

New capabilities of Terra-P+

In comparison with “TERRA-P” dosimeter-radiometer, “TERRA-P +” has new features:

  • wider measurement range of gamma radiation ambient dose equivalent rate
  • measurement of surface beta-particles flux density
  • measurement of ambient dose equivalent accumulation time
  • automatic subtraction of gamma background at measurement of beta contamination
  • programming of threshold level values:

– gamma radiation ambient dose equivalent rate

– gamma radiation ambient dose equivalent

– surface beta-particles flux density

  • digital display backlight
  • wider operating temperature range

TERRA-P+ is used to:

  • control personal radiation safety of the user
  • carry out radiation monitoring of:

– apartments and offices,

– items of everyday use,

– clothes,

– means of transportation,

– bank-notes,

– building materials,

– ground surface of infields,

– food items (especially berries and mushrooms)

Purpose of Use

  • Measurement of gamma radiation ambient dose equivalent rate (DER)
  • Measurement of gamma radiation ambient dose equivalent (DE)
  • Measurement of surface beta-particles flux density
  • Measurement of ambient dose equivalent accumulation time
  • Real time measurement (clock)

TERRA-P+ Features

  • Five independent measuring channels with alternate indication of data on the single liquid crystal display
  • Built-in gamma, beta sensitive Geiger-Muller counter
  • Automatic setting of measurement intervals and ranges
  • Audio signalling of each detected gamma-quantum and beta-particle
  • Two-tone audio alarm of exceeded programmed threshold levels
  • Digital display backlight
  • Two AAA size batteries
  • Low battery indication
  • Shock resistant body
  • Small weight and dimension parameters

 

Measurement ranges and main relative errors

Gamma radiation dose equivalent rate (137Cs)

µSv/h

0.1…5 000

%

,where is a numeric value of the measured DER in μSv/h

Gamma radiation dose equivalent (137Cs)

mSv

0.001…9 999; ±25%

Beta-particles flux density (90Sr+90Y)

1/(сm²·min)

10…10 000;

%

,where – is a numeric value of the measured surface flux density in part./(cm2·min)

Dose equivalent accumulation time and accuracy of measurement

1min…100h;

±0.1s per 24h

Energy ranges of measurement and energy dependence

Gamma radiation

MeV

0.05…3.0; ±25%

Beta radiation

MeV

0.5…3.0

Ranges of threshold level values programming for:

– ambient dose equivalent rate

– ambient dose equivalent

– flux density

µSv/h

mSv
10³/cm²·min

0…5 000

0…9 999

0…9 999

Resolution of threshold level programming for:

– ambient dose equivalent rate

– ambient dose equivalent

– flux density

µSv/h

mSv
10³/cm²·min

0.01
0.001
0.01

Battery life

hours

2 000

Operating temperature range

°С

-20…+50

Weight

kg

0,15

Dimensions

mm

120×52×26

 

Delivery Kit

  • MKS-05 “TERRA-P+” dosimeter-radiometer
  • leather case
  • operating manual
  • packing box