High accuracy
and precision

Quant for GR1®
Unique Solution for Mobile
Laboratory Radionuclide Analysis
Quant for GR1® (Q4-GR1)® is a unique solution formeasuring the activity of radionuclides in filters, filter
papers and beakers.
The low power, small form factor, reliability, and norequirement for cooling, enable measurements ofvarious configurations of samples, without the need fortime consuming transport back to offsite laboratory.
Q4-GR1 utilises mature Cadmium Zinc Telluride (CZT)
technology, provides less than 2% energy resolution,
unmatched by conventional scintillator detector based

Applications include:

instruments such as LaBr3 and NaI. This high resolutionnEnvironmental MonitoringnDecommissioningnWaste DisposalnFood Inspection

performance enables clear separation of gamma energy
peaks within complex mixed radionuclide samples
for accurate quantification of individual radionuclides
without the need for chemical separation.
Q4-GR1 comes with an optimised and integrated lead/copper shield that enables operation in both standard

Supplied with Kromek’s
top-of-the-range
MultiSpect Analysis
Premium Softwareand raised backgrounds. The enhanced lid locking
mechanism has a simple-to-use push switch, which
offers positive and secure closing.

Specifications

Maypack Charcoal 131:
I
10mmPb & 3mmCu
400

Background
Dose

350

19.2µSv/h

Detector Resolution<2%Energy Range

30keV to 3MeV

Number of channels

4096

Weight22kg

Power Consumption

Powered via mains

Dimensions

300mm diameter x
210mm height

Lead/Copper Shield

10mm/3mm

Number of selectableradionuclides as standard

47

Counting Time

User Configurable

Temperature

0-50oC

6µSv/h300

1.92µSv/h

MDA (Bq)

0.19µSv/h
250

0.02µSv/h

200

150

100500200

300

400500600

Coun ng Time (seconds)

700800900

MultiSpect Analysis Premium® Software
Q4-GR1® comes pre-loaded on a Windows-based laptop
with MultiSpect Analysis Premium which includes adedicated Quantitative Activity Analysis module. It enables
full spectrum visualisation, radionuclide identification andactivity analysis with adjustable confidence levels.
The results are stored within a database that can be exported
to CSV file format, and reports output to PDF.
Pre-defined sample types are:nnnnnStandard Maypack filter
Filter papers
Maypack charcoal
Efficiency optimised beaker filled with distributed
material
Calibration source

Maypack not included,requires separate purchaseCs-137: 10mm Pb & 3mmCu
1800

MDA (Bq)

1600
1400

Background Dose

1200

3µSv/h
2.5µSv/h

1000

2µSv/h800

1.92µSv/h

600

0.19µSv/h

4000.02µSv/h

200
0200

300

400

500

600

700

800

900

Counng Time (seconds)

MDA for 1 litre beaker with background
doses for various sources

Some of MultiSpect Analysis Premium® Key Features
Co-60: 10mm Pb & 3mmCu
2500

Background Dose

2000

MDA (Bq)

3µSv/h
2.5µSv/h
1500

2µSv/h
1.92µSv/h
10000.19µSv/h
0.02µSv/h

500

0200

300

400

500

600

700

800

900

Counng Time (seconds)

Am-241: 10mm Pb & 3mmCu
1400

1200

Background DoseMDA (Bq)

1000

3µSv/h800

2.5µSv/h
2µSv/h600

1.92µSv/h
0.19µSv/h

4000.02µSv/hUser definable confidence limits

P

Predefined samples

P

Quant library of 50 nuclides

P

User customisable libraries

P

Display calibrated spectra at the same energy
scales to allow comparisonP

Thumbnail indication of loaded spectraP

Ability to save spectra in SPE or CSV formats

P

Ability to export dataP

Ability to save detector calibration information

P

Association of calibration data with particular
detectors by serial number

P

Aggregation of multiple spectra into one
spectrumP

Built in library of 416 isotopes

PIndustry standard categorisation of isotopes

P

Automated peak analysis of Spectra

P

200

0200

300

400

500600Counng Time (seconds)

700

800

900

Drivers available for both Windows® (7, 8, & 10) and Linux® operating systems

Configuration
options for theanalysis basedon statisticalsignificance.

Activity Analysis
Options allow
the user to selectsample type andrequired statistics

Activity Analysis Table displays the result,uncertainty and MDA of each selectedradionuclide with the ability to export to CSVMultiSpect Analysis Premium® offers predefined Quant forGR1 geometries with hard-coded efficiency factors for activity
analysis.

User
configurable
radionuclide
library

Manual Efficiency Calibration
Where the detector and radioactive sources are used in a fixed
geometry, an efficiency calibration of the system can be used,
together with the measured count rates in spectrum peaks, tocalculate source activity. Tools are provided allowing the user
to determine the efficiency of their system using a calibration
source of known activity.

Manual Efficiency Calibration for Activity Analysis
2. New ‘Efficiency Calibration’ tabin ‘Device Settings’

1. Acquire a spectrum from acalibrated radioactive source
3. Click ‘Add Cursor
Point’ to calculate
efficiency from theacquired spectrumat the position of thecursor

4. Select theradionuclide

5. Enter thesource activity
and MultiSpect
calculates theefficiency value

6. Choose the equation for
fitting the data

7. View the fit confidence limits
graphically to check the qualityof the calibration, then save as a
“Favourite” for future use

8. Calculate the activity of any radioactive
source measured in the same geometry

Optional upgrade:
Upgrade laptop to semi-rugged tablet,
12V operation and vehicle mount for in-vehicle use

Options and upgrades

Semi-rugged Tablet

Standard kit includes:

With its entire chassis sealed against water and ingress
protection up to IP43, the tablet meets stringent MILSTD-810G tests.

Q4GR1 Quant pot including optimised backgroundshieldnn

GR1+ <2% resolutionn

Windows-based laptop with MultiSpect Analysis
with Activity Analysis preinstalled

nMaypack filter attachment

Optional upgrade:Semi-rugged tablet (Q4GR1 TAB)
upgrade laptop to semi-ruggedtabletnnnn

MIL-STD-810G drop protection from 4 feet (120cm)
MIL-STD-810G and ASTM D4 169-08 protection
against vibration
Wide humidity operating: 5% ~ 95%
Wide temperature operating: 0oC ~ +45oC
Internal magnesium alloy framen 12V operation for in-vehicle use
n Vehicle mount

Accessories:
Quant B-1000 – pack of five,
one litre beakers

Q4-GR1 is now available witha 10.1" semi-rugged tablet
designed for mobile workers foruse in various locations.

nQuant B-C – custom size
beaker available on request

nPlease note: beaker
not included, requires
separate purchase
ISO 9001
SYSTEM
CERTIFIED© 2016 Kromek Group. All rights reserved.

Kromek Group plc
Kromek Ltd NETPark Thomas Wright Way Sedgefield County Durham TS21 3FD UK T: +44 (0) 1740 626060
Kromek USA 373 Saxonburg Blvd Saxonburg PA 16056 USA T: +1(0) 724 352 5288
E: sales@kromek.com W: www.kromek.com

Q4GR1 A4E SPF-DOC-1224 Rev7n