Mirion Technologies Hp(0,07) Beta Module User manual

Hp(0,07) Beta Module
User's Guide
Health Physics
Division
Radiation Safety. Perfected.
DOC003284EN-A

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Table of Contents
1- Presentation...........................................................3
2- General...................................................................4
2.1 Compatibility........................................................... 4
2.2 Settings................................................................... 5
2.3 Hp(0,07) Measurement Display .............................. 5
2.4 Hp(0,07) Chirp Doses Increment ............................ 6
2.5 Historical Data Function ......................................... 6
2.6 Handling Recommendations .................................. 6
2.7 Module Management.............................................. 7
3- Alarms ....................................................................8
3.1 Alarm Display and Conguration ........................... 8
3.2 Condence Test...................................................... 8
3.3 Fault Diagnosis and Resolution .............................. 9
4- Module Attachment .............................................10
4.1 Removing the battery cover ................................. 10
4.2 Attaching the Beta Hp(0,07) module .................... 11
4.3 Detaching the Beta Hp(0,07) module ................... 12
5- Manual Calibration & Maintenance ......................13
5.1 Principle................................................................ 13
5.2 Manual Calibration of the Hp(0,07) Gamma Detector
............................................................................... 14
5.3 Manual Calibration of the Hp(0,07) Beta Detector 15
5.4 Maintenance ......................................................... 16
6- Technical Characteristics .....................................17
6.1 Physical Characteristics ....................................... 17
6.2 Electrical Characteristics ...................................... 18
6.3 Mechanical Characteristics .................................. 18
6.4 Environmental Characteristics.............................. 18
6.5 Factory Calibration and verication...................... 19
6.6 Functional Characteristics .................................... 19
6.7 Environmental Regulations ................................... 19
6.8 Calibration Reference Points ................................ 20
7- Verication Certicate ..........................................21
7.1 Beta Hp(0,07) Verication Certicate.................... 21
7.2 Gamma Hp(10), Hp(0,07) Verication Certicate.. 22
8- CE Certicate.......................................................23

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Module Serial
Number
Beta/Gamma
Detector
Attachment
screws
Connection Pads
Wearing and Battery
Guidelines
Technical Information
Module Serial
Number
Gamma Detector
1- Presentation
The Hp(0,07) Beta Module is mounted on a DMC 3000 to expand the DMC 3000’s measurement capabilities to beta radiation,
and turn on the Hp(0,07) Gamma + Beta measurement.
This user’s guide is to be used along with the DMC 3000 user guide (n°151153EN).

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2.1 Compatibility
2- General
For the Hp(0,07) Beta Module to work correctly, it must be paired with a DMC 3000 using rmware V07.1.0 or greater.
If the dosimeter displays a star at the bottom of its screen, rmware version is earlier than V07.1.0 and is not suitable.
Otherwise, check rmware version by pressing the "+" button to display rmware version.
If rmware version is not visible, use DMCUser.
Please contact Mirion Technologies for compatibility diagnosis and information.
The DMC 3000 must be congured to accept the Hp(0,07) Beta Module (congurable in the Parameters tab of DMCUser,
see §2.7).
The DMC 3000 must be calibrated Hp(0,07) Gamma (check verication certicate of the dosimeter, see §7).
The DMC 3000 must be equipped with the 26-pin connector (PN: 00153458) prior to
the attachment of the Hp(0,07) Beta Module.

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2.2 Settings
The Hp(0,07)Beta Module itself contains all the proper functional settings and calibration parameters.
These parameters are saved in the module on non-volatile memory.
2.3 Hp(0,07) Measurement Display
In the standard conguration for the DMC 3000, display of the Hp(0,07) Gamma + Beta measurements are automatic after
connection of the module.
Examples of available data Display
Hp(10) Gamma Dose
Hp(10) Gamma Dose Rate
Hp(0,07) Shallow Dose
Hp(0,07) Dose Rate
Connected Module
Blue LED for Hp(0,07)
dose increments
Identification of Hp(0,07)
shallow measurement
General

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2.4 Hp(0,07) Chirp Doses Increment
The blue LED ash provides notication of Hp(0,07) dose increments.
Dose increments can be selected from the value in the table beside.
An audible beep can be congured to chirp for the following three (3) options:
Hp(10) Gamma Dose.
Hp(0,07) Shallow Dose.
Hp(0,07) Shallow Dose when the Hp(0,07) Beta Module is connected and Hp(10)
Gamma Dose when it is not.
When the audible beep is congured for Hp(10), dosimeter use Hp(10) Gamma dose
increments dened in the dosimeter.
If the audible beep is congured for Hp(0,07), dosimeter use Hp(0,07) Beta Module audible
beep dose increments.
This dose increment can be selected from the values in the table beside.
All those congurations are done using DMCUser.
2.5 Historical Data Function
Hp(0,07) measurements and events are automatically stored in the DMC 3000 histograms
along with the Gamma Hp(10) measurements and events.
General
One audible beep per...
100 µSv
50 µSv
10 µSv
5 µSv
1 µSv
0.5 µSv
0.1 µSv
0.05 µSv
Without beep
One blue LED flash per...
100 µSv
50 µSv
10 µSv
5 µSv
1 µSv
Without ash
2.6 Handling Recommendations
The belt clip is strongly discouraged when a module is attached on the dosimeter because the opening gap of the clip is
signicantly reduced.
The use of the front facing clip and dosimeter inside the pocket is forbidden with an Hp(0,07) Beta Module, because no material
must be in front of the Beta detector.
The user must always wear the dosimeter against the body (see the label on the back of the module).
The gamma + beta detection area (i.e., the metallic circle) should not be pierced or otherwise damaged or covered up (e.g.,
labeling).
Avoid having any foreign content, such as dust, dirt, or labeling, between the 26-pin connector board and the module.

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2.7 Module Management
The Module Management Mode is congurable using DMCUser software.
General
None: any physical connection of module is ignored by the dosimeter.
All: DMC 3000 accepts all type of module. When a module is connected, the dosimeter changes automatically its display
conguration and display the Hp(10) neutron or Hp(0,07) shallow dose depending on the type of module.
Hp(0,07) required / Telemetry required / Neutron required: DMC 3000 needs the required module otherwise a default
message "WRG MOd" is displayed or "Mod def" if no module is connected.
When a dosimeter is congured in "All" mode and has been
equipped with a module, this command resets the fault message
"Mod def" and returns to operate without any module.
Note: This command resets the secondary dose of the dosimeter.
Note: if the dosimeter is congured in "Neutron required" or
"Hp(0,07) required" mode, this command resets the secondary
dose but it does not modify dosimeter operation.

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3.1 Alarm Display and Configuration
The Hp(0,07) dose and dose rate warnings and alarms are congurable for the entire measurement range of 1 µSv to 10Sv
(0.1 mrem to 1000 rem) and 10 µSv/h to 10 Sv/h (1 mrem/h to 1000 rem/h) for the standard conguration (fast response time)
and from 1 µSv/h to 10 Sv/h (0.1 mrem/h to 1000 rem/h) when congured for optimized responses.
The Hp(0,07) shallow alarm set points are saved in the dosimeter.
When an alarm is triggered, its cause is identied by the blanking of the corresponding measure. Visual and audible alarms
signal are shared with Hp(10) and Hp(0,07) alarms.
3.2 Confidence Test
The detection of beta radiation is ensured through the use of two (2) detectors.
To guarantee a proper operation, two (2) additional tests are performed.
An optical test veries the complete functionality of the measurement chain every ten (10) minutes in Sleep, Pause and Run
mode.
If the number of detected pulses is fewer than the expected number in one of the two (2) channels, the fault message
is displayed. This message lets users know the detection function is not operational.
In addition to the optical test, the module’s counting functionality is veried. If the time between two (2) pulses is longer than
statistically expected, the fault message is displayed.
3- Alarms

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3.3 Fault Diagnosis and Resolution
When connecting a module, the lack of icon on the display means that the module has not been detected (see §2.1 and 2.7
for compatibility and conguration).
Major Faults : a major fault prevents the dosimeter from going into Run mode
Display Causes Solutions
The module was disconnected from the DMC 3000
without rst affecting the disconnection via DMCUser.
It is possible that the dosimeter’s rmware version
does not support the module.
Turn in Pause mode the dosimeter. Verify the connection of the module and
the integrity of the connector. Verify that rmware version of the dosimeter
is V07.1.0 or newer. Reconnect the module while the DMC 3000 is in Pause
mode. If problem persists, contact your Mirion representative.
The DMC 3000 is not calibrated to Hp(0,07) measure. Contact your Mirion representative.
The dosimeter does not recognize the module. Change the DMC 3000 conguration to accept the Beta Module using DMCU-
ser. See §2.1 and §2.7.
Physical problem related to the module’s detection
circuit (not communicating with the microprocessor).
Turn in Pause mode the dosimeter. Disconnect the module.
Check the cleanliness of the module contact surface
Verify the integrity of the 26 pins connector (all the contacts at the same level).
Reconnect the module while Dosimeter in Pause.
If problem persists, contact your Mirion representative.
Physical problem related to the module’s detection
circuit and its detectors (no pulse detected during the
previous verication period).
Verify the functionality in the presence of radiation.
If problem persists, contact your Mirion representative.
Physical problem related to the module’s detection
circuit and its detectors (optical verication).
Contact your Mirion representative.
Physical problem related to the module’s detection
circuit (no measurement time).
Contact your Mirion representative
Limits to the pulse count due to too many mechani-
cal shocks or electromagnetic disturbances to the
module’s detection circuit.
Conrm the default occurred during “normal” use (without any mechanical
stresses or elevated electromagnetic activity).
Contact your Mirion representative.
Minor Faults
Display Causes Solutions
The module’s calibration date has passed. Have the module calibrated.
Alarmes

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4- Module Attachment
Note:
Due to the presence of voltage on the pins of the 26-pin connector, remove or add new modules when the dosimeter
is in Pause mode. Avoid shorting the pins.
4.1 Removing the battery cover
Make sure that the dosimeter is in Pause mode.
Unscrew the two screws (2) with the screwdriver provided with your DMC 3000 (1).
Rotate the battery cover (3).
Remove the battery cover (4).
(1)
-
+
(3)
(4)
(2)

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Module Attachment
4.2 Attaching the Beta Hp(0,07) module
Carefully insert 26-pin connector, ensuring side labeled “BATTERY SIDE” is inserted closest to the battery (5).
Position the module at the base of the dosimeter (6) and pivot it to connect to the dosimeter (7).
Hand tighten with the screwdriver (1) provided at 0.25 to 0.35 Nm (8).
Ensure the dosimeter display’s transmitter icon activates . If it does not, verify the dosimeter is congured to accept the
module (see §2.1 and §2.7).
(5)
(7)
(6)
(8)
Note:
Due to the presence of voltage on the pins of the 26-pin connector, remove or add new modules when the dosimeter
is in Pause mode.
Avoid shorting the pins.

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Module Attachment
(10)
(9)
4.3 Detaching the Beta Hp(0,07) module
Check the dosimeter is in Pause mode.
Unscrew the two screws (9) with the screwdriver provided with your DMC 3000 (1).
Pivot the module and detach it from the dosimeter (10).
Conduct a software disconnect using the "Detach Module" command of DMCUser software (11), or temporarily remove the
dosimeter’s battery (12).
Replace the battery if necessary.
Note:
Due to the presence of voltage on the pins of the 26-pin connector, remove or add new modules when the dosimeter
is in Pause mode.
Avoid shorting the pins.
(11)
(12)

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5- Manual Calibration & Maintenance
5.1 Principle
The Hp(0,07) dose are linked to the number of counts detected by the following formula:
Hp(0,07) dose = f (counts)
K x KMul
K is the factory efciency coefcient and cannot be changed by the user.
KMul is the efciency coefcient multiplier that can be changed by the user.
The Hp(0,07) manual calibration need to be performed in two steps, rst step with a Gamma source and the second with a
beta source.

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Manual Calibration & Maintenance
5.2 Manual Calibration of the Hp(0,07) Gamma Detector
Note: Hp(0,07) Gamma calibration parameters are saved inside the DMC3000 dosimeter.
Expose the dosimeter to a 137Cs gamma source to obtain a minimal "expected dose" of 500 µSv (50 mrem) and read the
Hp(0,07) dose displayed on the dosimeter as “read dose”.
Note the Hp(0,07) Gamma efciency coefcient multiplier using DMCUser. This multiplier is called "KsMul Old".
Determine the new multiplier "KsMul New" using the following formula:
KsMul New = KsMul Old x Read Dose / Expected Dose
Turn the dosimeter in Pause mode and modify the Hp(0,07) Gamma efciency coefcient multiplier “KsMul" using the value
of “KsMulNew” with DMCUser.
Turn the dosimeter in Run mode, expose the dosimeter to the same source and verify that the dosimeter’s response is within
the set limits.
Note:
To ensure a proper calibration technique at 137Cs, a 2 mm thick PMMA screen must be placed between the source
and the dosimeter (close to the dosimeter) during calibration. This screen shall be 30cm x 30cm.
The DMC 3000 is calibrated at the factory using established procedures and international standards. Mirion Tech-
nologies recommends an annual verication of the dosimeter’s calibration. However, the frequency of this verication
may be dened by the client according to the conditions and frequency in which the dosimeter is used, and according to
local regulation.
The DMC 3000 is equipped with two (2) detectors, one for Gamma radiation and X-rays higher than 50 keV and a
second one for lower energy X-rays, down to 15 keV. Verication of the calibration using a Gamma source (137Cs or 60Co)
or with a Gamma source and a lower energy X-ray source may be considered based on service environment. Mirion
Technologies provides verication of calibration at three (3) energy levels (X-ray 16 keV, 241Am and 137Cs), 60Co is also
available upon request in accordance with ISO/IEC 17025.
- The Hp(0,07) Gamma efciency coefcient multiplier "KsMul" is factory set at 1.00.
- Reducing the Hp(0,07) Gamma efciency coefcient multiplier "KsMul" increases the Hp(0,07) Gamma response for
the DMC 3000.

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Manual calibration & Maintenance
5.3 Manual Calibration of the Hp(0,07) Beta Detector
Note: Hp(0,07) Beta calibration parameters are saved inside the Module, thus, Hp(0,07) Beta calibration can be performed with any DMC3000
dosimeter.
Expose the dosimeter to a strontium/Yttrium (90Sr /90Yr) source to obtain a minimal "expected dose" of 500 µSv (50 mrem),
and read the displayed Hp(0,07) dose as the "Read dose".
Note the Hp(0,07) Beta efciency coefcient multiplier using DMCUser. This multiplier is called "KbMul Old".
Determine the new multiplier "KbMul New" using the formula below:
KbMul New = KbMul Old x Dose Read / Dose Expected
Turn the dosimeter in Pause mode and modify the Hp(0,07) Beta efciency coefcient multiplier using the value of "KbMul
New" with DMCUser.
Turn the dosimeter in Pause mode, expose the dosimeter to the same source and verify that the dosimeter’s response is
within the set limits.
Note:
The Hp(0,07) Beta Module is calibrated at the factory using established procedures and international standards.
Mirion Technologies recommends an annual verication of the dosimeter’s calibration. However, the frequency of
this verication may be dened by the client according to the conditions and frequency in which the dosimeter is
used, and according to local regulation. The Hp(0,07) Beta module covers a large Beta energy range from Beta Emax ener-
gies of 225 keV to 2274 keV. The Beta response depends the Energy used for the calibration. Mirion Technologies provides
verication of calibration at two (2) energy levels (85Kr and 90Sr /90Yr), in accordance with ISO/IEC 17025. The Hp(0,07) Beta
efciency coefcient multiplier (KbMul) and the Hp(0,07) Gamma efciency coefcient multiplier (KsMul) are factory set at 1.
Reducing one of these 2 efciency coefcient increases the Hp(0,07) response for the DMC 3000.

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Manual calibration & Maintenance
5.4 Maintenance
Mirion Technologies recommends full inspections of dosimeters at a minimum of once a year.
Calibrations (Gamma and Beta Modules) : (see §5.2 and 5.3)
Functions: Check that the DMC3000 displays and Hp(0,07) dose in Pause by pressing the "-" key.
Check the auto-test when the DMC 3000 exits standby mode:
the speaker will chirp once
the front ash LED and top LEDs (Red, Green, Blue) will briey illuminate.
all display segments will light
the backlight will turn on
Check the speaker by activating the dosimeter using a rate pre-alarm set point of 0 mSv/h (0.0 mrem/h)
Visual inspection of the mylar window (Beta and Gamma detector) is not damaged and/or turn on the dosimeter and expose
the beta module directly to the light of a desktop lamp during 10 seconds and no dose recorded.
The KbMul and Ks Mul efciency multipliers directly affect the dosimeter response, and must be changed by qualied techni-
cian. It is advisable to check periodically that these efciency multipliers (KbMul and KsMul) are adapted.

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6- Technical Characteristics
6.1 Physical Characteristics
Tested according to IEC 61526 Ed. 3, ANSI 42.20 (*)
(*) Isotropy 241Am and 137Cs at angles of ± 75°
Measurement and display:
Quantity Hp(0,07)
X-ray and Gamma Energy Range: 15 keV to 7 MeV at 0°
Beta Energy Range: 0.22 MeV to 2.3 MeV (Emax)
Hp(0,07) measurement range: 0,1 µSv/h to 10 Sv/h (0,01
mrem/h to 1000 rem/h)
Hp(0,07) display dose range: 1 µSv to 10 Sv (0,1 rem to
1000 rem)
Resolution of recorded dose: 0,01 µSv
Hp(0,07) display rate range 10 µSv/h to 10 Sv/h (1 mrem/h
to 1000 rem/h) (extended option**)
**mandatory if rate alarms are set below 50 µSv/h (5mrem/h) in
order to display rate with better accuracy. Recommanded for rate
alarms settings below 100 µSv/h (10 mrem/h) if fast response time
for rate alarm is not required.
Accuracy Hp(0,07) Gamma :
≤ 5% (137Cs, ~ 24 mSv/h)
≤ 5% (241Am, ~ 23 mSv/h)
≤ 10% (16 keV, ~ 3 mSv/h)
≤ 10% (60Co, ~ 5 mSv/h)
Accuracy Hp(0,07) Beta
≤ 10% (90Sr/90Y, ~ 30 mSv/h)
≤ 10% (85Kr, ~ 790 mSv/h)
Dose Rate Linearity Hp(0,07)
≤ 20% jusqu’à 10 Sv/h (60Co)

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6.2 Electrical Characteristics
The Hp(0,07) Beta module is powered by the DMC 3000 dosimeter.
Battery life (with the Beta module) is eight (8) calendar months (typical use of eight (8) hours a day, ve (5) days per week in
Run mode, without excessive alarms (*).
Battery life (with the Beta module) of 1800 hours in continual service without excessive alarms (*).
(*) 0.2% of functional time in alarm
6.3 Mechanical Characteristics
Rugged, high impact polycarbonate-ABS case.
Dimensions (module + DMC 3000 with standard clip): 122 x 60 x 28.7 mm (4.8 x 2.4 x 1.1 in).
Dimensions (module + DMC 3000 without clip): 122 x 60 x 21 mm (4.8 x 2.4 x 0.75 in)
Dosimeter weight with an alkaline battery, standard clip, and beta module: 112g (3.9 oz).
Weight (module only): 30g (1 oz).
6.4 Environmental Characteristics
Temperature range: -10°C to 50°C (14°F to 122°F): deviation in response less than ±5%.
Relative humidity: 90% RH at 42°C (108°F).
Storage: -20°C to 71°C (-4°F to 160°F) without battery.
Shock, vibration and drop resistant (1.5 meter on concrete).
Dust protected IP 50
EMC: complies and exceeds standards by a large margin (CE compliant, certicate number DOC003214)
MIL STD 461F RS103 (electric eld): exceeds 200 V/m from 10 kHz to 5 GHz
MIL STD 461F RS101 (magnetic eld 30 Hz to 100 kHz)
Technical Characteristics

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6.5 Factory Calibration and verification
Calibrated according to ISO/IEC 17025 with the following dose rate and calibration beam precision:
Four (4) Gamma energy references:
16 keV (X), ~ 3 mSv/h (0,3 rem/h) with ± 8.5% uncertainty (k=2)
59,3 keV (241Am), ~ 23 mSv/h (2,3 rem/h) with ± 5% uncertainty (k=2)
662 keV (660Cs), ~ 24 mSv/h (2,4 rem/h) with ± 5% uncertainty (k=2)
1250 keV (60Co) (upon request) ~ 5,5 mSv/h (0,55 rem/h) with ± 6,5% uncertainty (k=2)
Two (2) Beta energy references:
Eavg=0,24MeV (85Kr) ~ 790 mSv/h (79 rem/h) with 5% uncertainty (k=2)
Eavg=0,8MeV (90Sr/90Y) ~ 25 mSv/h (2,5 rem/h) with 5% uncertainty (k=2)
6.6 Functional Characteristics
Condence test:
Self-test of two (2) Beta Hp(0,07) Module detectors every ten (10) minutes.
Test of Beta Hp(0,07) module / dosimeter every seconds.
Beta Hp(0,07) module data integrity test by CRC check.
6.7 Environmental Regulations
In accordance with European regulation (Directive DEEE 2002-96-CE), Beta modules should not be thrown out with non-sorted
waste, but must be selectively collected.
Follow local regulations.
Technical Characteristics

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Technical Characteristics
6.8 Calibration Reference Points
Note: Dimensions in millimeters
Hp(10) and Hp(0,07)
X + Gamma detectors location
Hp(0,07) beta detectors location
0,95
15,43