Mirion Technologies SPIR-Quanta User Manual

Health Physics
Division

SPIR-Quanta

Detection and Identication - Risks Prevention

SPIR-QUANTA

Liquid or Solid Sample Contamination
Measurement

SPIR-Quanta is a system based on the SPIR-Ident

product line technology, which provides reliable and

sensitive identication, and quantication of gamma

radionuclides.

Low detection limits are achieved through Marinelli

geometry, large 3’’x3’’ NaI scintillator and lead shielding.

Measurement protocols are predened or user

customized. Predened protocols include nuclear

accident contamination with Cs137, Cs134, I131

concentration measurement.

FEATURES

Very high sensitivity due to large detector size, Marinelli

beaker geometry and algorithm capability

● Lead enclosure for 1 and 2 liters Marinelli beakers

● Very robust processing against false positive

● Simple procedure

● Preset and user denable protocols

● Auto energy calibration

Customized protocols are possible over a wide library

covering applications for nuclear installations, dismant-

ling/decommisioning and medical radionuclides release

check.

The PC software allows easy and step by step measu-

rement process. The measurement sheet lists identied

radionuclides, related quantication in activity unit.

Transportable size and weight make it convenient to

use on the eld. Only a laptop with an Ethernet port is

needed.

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DESCRIPTION

SPIR-Quanta

Detection and Identication - Risks Prevention

EXAMPLE OF PERFORMANCES

SPIR-Quanta uses a 3”x3” NaI(Tl) detector, coupled to a
spectrometric base to generate spectra from the samples
contained in a Marinelli beaker placed inside of a 30mm thick
lead shielded enclosure.

The spectrometer is controlled via Ethernet by the SPIR-Quanta
software that runs on a standard PC.

SPIR-Quanta accomodates standard Marinelli beakers:

● 1l beaker: 133N-E + L-5 cover

● 2l beaker: 233N-E + L-6 cover

PRINCIPLE OF OPERATION

The SIA/Identpro algorithm provides a multiple ROIs analysis
plus an iterative process that progressively eliminates low
condence level candidates. The quantication is then based
on the net area estimation of the main peak of the intended
isotopes. The two steps process avoids false positive by rst
checking the presence of the intended isotope and so makes
the device very robust in particular to variation of the natural
isotopes concentration within the sampled material.
Issues like interferences between Radium daughter and Cesium
are solved.

OPERATION MODE

The operation is interactive and guided by the user interface.
User-dened pop-ups are generated at each step to instruct the
user. Basically, the operation is simple, no writing nor
calculation is needed.
Preset protocols are provided and may be user customized.
The successive steps are: energy auto-calibration, background
acquisition and samples acquisition.

Performances has been widely evaluated using actual and
MCNP generated spectra for various intended isotopes and
various material.

Typical limits of detection in water of Cs137, Cs134, Co60 for a
10 minutes measurement are below 10Bq/l. Limits of detection
depend on sample material, on sample natural radio-nuclides
content and on ambient background.

Example

of Cs134

and Cs137

contaminated

sample and
background

spectra close

to the limit of

detection

SPECIFICATIONS

Detector : 3”x3” NaI(Tl)
Resolution: 7.5% typical (Cs-137)
Spectrometer: digital MCA, high throughput,
1024 channels, 25 keV to 3 MeV,
Ethernet link
Energy stabilization: within 1%
Range of measurement: 3 to 1000000 Bq/l or Bq/kg
Temperature range: 0°C to 45°C
External dimensions (base included):
43 cm x 28 cm x 56 cm (w x d x h)
weight: <75 kg

SIA Identification and related quantification

Detection Quantication

Medical 18F, 51Cr, 67Ga, 99Mo, 103Pd, 111In,

NORM 40K, 226Ra + daughters, 232Th +

Industrial 22Na, 57Co, 54Mn, 60Co, 75Se,

SNM 233U, 235U, 238U, 239Pu, 241Pu,

Nuclear
Accident

Other H(n-g), Bremsstrahlung Pb X rays,

123I, 125I, 131I, 133Xe, 153Sm, 201Tl

daughters,

133Ba, 137Cs, 152Eu, 154Eu, 166Ho,
192Ir, 207Bi, 228Th (232U), 241Am

237Np

131I, 132I, 133I, 133Xe, 134Cs, 137Cs 131I, 134Cs, 137Cs

511keV, Unknown

18F, 51Cr, 67Ga, 111In,
123I, 131I, 153Sm, 201Tl

40K, 226Ra + daughters,
232Th + daughters

22Na, 54Mn, 57Co,
60Co,133Ba, 137Cs,
241Am

Step by step guidance

Step by step results

Health Physics
Division

Mirion Technologies (MGPI) Inc
5000 Highlands Parkway
Suite 150
Smyrna Georgia 30082

USA

T +1.770.432.2744
F +1.770.432.9179

Since norms, specications and designs are subject to occasional change, please ask for conrmation of the information given in this publication.

Mirion Technologies (MGPI) SA
Lieu-Dit Calès,
Route d’Eyguières
F-13113 Lamanon

France

T [phone]
F [phone]

Mirion Technologies (RADOS) Oy

P.O. Box 506
FIN-20101 Turku

Finland

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Mirion Technologies (RADOS) GmbH

Ruhrstrasse 49
DE-22761 Hamburg

Germany

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www.mirion.com

152410EN-E

Mirion Technologies Shanghai Branch

Room 801, 78 Jiangchang
San Lu, Zhabei District
Shanghai 200436

China

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