MOXTEK MAGNUM X-ray User manual

50kV MAGNUM® X-ray Source
Contents
• MonoblockX-raySourceCharacteristics
• InitialInspectionandHandling
• TubeSetup
• OperatingConditions
• OperatingPrecautionsandWarnings
• OperatingMonoblockwithaMoxtekFTC-200Controller
• OperatingMonoblockwithoutaMoxtekFTC-200Controller
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1
TUB-MAN-02050,RevD
Subjecttotechnicalchangewithoutnotice
X-ray
Sources

MAGNUM X-ray Tube Characteristics
Mechanical Specications X-ray Tube Characteristics
Tube Type:
Cathode Type:
Operating Temperature:
Storage Temperature:
Cooling:
HV Insulation:
Weight:
Available Targets:
Metal-ceramic
Tungstenlament
-10°to+50°C(formore
detailsseeFigure2,page3)
-40°to+85°C
Air
Siliconepotting
0.7lb.(350g)
Ag,W,Au,Pd,Ta,Rh
HV Polarity:
High Voltage:
Beam Current:
Maximum Power:
Focal Spot Size:
Windows:
Input Power:
Warranty:
Groundedanode
-4to-50kV
0to0.20mA
4watts
Typical~300µm
Beryllium,0.25mmthick
15Wmax(6-12VDC)
Oneyear
2
TUB-MAN-02050,RevD
Subjecttotechnicalchangewithoutnotice

Drawing 1 Monoblock Source Dimensions
3
TUB-MAN-02050,RevD
Subjecttotechnicalchangewithoutnotice

HighVoltage
PowerSupply
Shield
Connector
Monoblock’s shield details
Figure 2
Figure 1
Monoblock X-ray Source
4
TUB-MAN-02050,RevD
Subjecttotechnicalchangewithoutnotice
Maxtemp=100°C
Bewindow
Monoblock X-ray Source: Handling:
Initial Inspection:
TheMonoblockX-RaySourceissmall,lightweight,and
canbepackagedintocustomenclosures.TheMonoblock
X-RaySourcepackageincludesanx-raytubeandahigh
voltagepowersupplythatoperatesatupto50kVand
200µA.ThelowpowerconsumptionMonoblockX-Ray
Sourceisidealforbattery-poweredapplications.Thetube
anodeisgroundedallowingplacementclosetothesample.
WhenaMonoblockX-RaySourceisreceived,itshould
beunpackedandinspectedassoonaspossible.Astandard
MonoblockX-RaySourceconsistsofahighvoltagepower
supplyandanx-raytubeenclosedinabrassshield(Figure
1).Inspectthehighvoltagepowersupplyandthetube
shieldassemblyforanydamagethatmayhaveoccurred
duringshipping.Ifatubehasbeendamaged,please
contactMoxtekimmediately.Theserialnumberislocated
onthestickeronthehighvoltagepowersupply.
(Mechanical)
TheMonoblockX-RaySourceassemblymaybemounted
withtheexitcollimatorfacinganydirection.Thehigh
voltagepowersupplyhasvethreadedholesM3x3mmon
thebottomside(nostickers)ofthemetalcase.Theseholes
maybeusedformounting.
(Cooling)
TheMonoblockX-RaySourcedoesnotrequireforced
convectionorliquidcooling.Thetubeshouldbeoperated
inanenvironmentthatallowsfreeairconvectionor
conductiontosecondaryparts.Pleaserefertopage2
ofthismanualforoperatingandstoragetemperature
specications.Thespeciedtemperatureismeasuredatthe
surfaceofthealuminumcancontainingthehighvoltage
powersupplyunit.
Themaximumrecommendedoperatinganodeshield
temperatureis100degreesCelsius(seeFigure2).
Caremustbetakennottotouchordamagetheberyllium
windowattheendofthetubeshield(Figure2).
Tube Setup:

(Electrical)
Thehighvoltagepowersupplyhasa10pinconnector
(Figure1).Thisconnectorisusedtopower,controland
monitorthex-raytube.Table1showsthepin-outforthe
connector.
Anoptional10leadribboncableisavailablefrom
Moxtek(Figure3).Thisribboncablehasa10pinIDC
connectorononesidethatconnectstothehighvoltage
powersupplyandaDB9connectorontheotherendthat
connectstotheMoxtekFTC-200controller(Table3).
Pin Assignment for 10 Pin IDC Connector
Function Pin # I/O Value Response
Input power 1 +6to+12V Inputpower
Input power 2+6to+12V Inputpower
Ground 3 Ground Ground
Ground 4 Ground Ground
Current control 5 0.0Vto+4.0V 0.0µAto200µA
HV control 6 +0.32Vto+4.0V -4kVto-50kV
Filament ready 7 0.0Vor+5VTTL
output
0Notready+5
Ready
HV enable 8 0.0Vor+5VTTL
input
0Disabled,+5
Enabled
HV monitor 9 +0.32Vto+4V
output
Proportionalto-4
kVto-50kV
Current monitor 10 0.0Vto+4V
output
Proportionalto0
to200µA
Table 1
Pin Assignment for 10 Pin IDC Connector
Function Pin # I/O Value Response Ribbon
Wire Color
Input power N/A +6to+10V Inputpower Brown
Input power 1+6to+10V Inputpower Red
Ground 2 Ground Ground Orange
HV control 3 +0.32Vto+4.0V -10to50kV Blue
HV enable 4 0.0Vor+5VTTL
input
0Disabled,+5
Enabled
Grey
Current
Monitor
50.0Vor+5VTTL
output
-4kVto-50kV Black
Ground 6 Ground 0Notready+5
Ready
Yellow
Current
Control
70.0Vor+4V 0Disabled,+5
Enabled
Green
Filament
ready
80.0Vto+5V
output
Proportionalto-4
kVto-50kV
Violet
HV monitor 9 +0.32Vto+4V
output
Proportionalto0
to200µA
White
SafetyInterlock:
Toassuresafetubeoperation,a5voltTTLsignalissent
tothepowersupplytoenablex-raygeneration.Moxtek
recommendstheuseofasafetyinterlockswitchwhen
operatingtheMAGNUMx-raytube.Connectthe
highvoltageenablepin(seeTable2)tothecustomer
suppliedsafetyinterlockswitch.
Table 3
Figure 3: Optional Ribbon
Cable (ASM00362)
5
Manufacturer:3M
PartNumber:3473
TUB-MAN-02050,RevD
Subjecttotechnicalchangewithoutnotice

CAUTION:MonoblockX-RaySourcecontainsberyllium.
Inhalingberylliumdustcauseslungdisease.Donottouchthe
berylliumwindow(Figure2).
TUB-MAN-02050,RevD
Subjecttotechnicalchangewithoutnotice
452 West 1260 North / Orem, UT 84057
Phone [phone] / Fax [phone]
www.moxtek.com
[email protected] 6
Operating the Monoblock X-Ray Source without a
Moxtek FTC-200 controller:
ThehighvoltagepowersupplyusesDCvoltagesand
signalstooperatethetube.Tooperatethetubewithout
usingaMoxtekFTC-200controller,refertoTable1and
Table2forthe10pinhighvoltagepowersupplyconnector
pinouts.
D (APPLY_VIN)
D (PROGRAM_VOLTAGE)
D (PROGRAM_CURRENT)
D (ENABLE)
D (FILAMENT READY
AND OUTPUT STABLE)
0.000 0.300 0.600 0.900 1.200 1.500
T (Secs)
Operating Conditions:
Monoblock’sanodesaregroundedtoametalshield(Figure1).
Whenoperatingthe50kVMonoblockX-RaySource,adhereto
themaximumsettingbelow:
• 50 kV, 0.20 mA max, power limited to 4 Watts
Failuretoadheretotheselimitsmaycausedamagethex-ray
tubeand/orhighvoltagepowersupply.Failuretoadheretothis
parameterwillforfeitthetubewarranty.
WhenoperatingMonoblockX-RaySource,wait 2 seconds
after the tube has been powered off before powering the
tube on again.Failuretowait2secondsmaydamagethe
lament.Failuretoadheretothisparameterwillforfeitthe
tubewarranty.
Operation Precautions and Warnings:
CAUTION: Verifythatthetubeandthehighvoltagepower
supplyareproperlygroundedbeforepoweringontheFTC-
200tubecontroller.AlsoverifythattheFTC-200controller
isproperlygroundedtothepoweroutlet.Ifyouarenotusing
theFTC-200Controllerandusingacustomcontroller,make
surethetubeandthehighvoltagepowersupplyareproperly
grounded.
WARNING: Monoblocksourcesoperateathighvoltages
upto50kV.Refertothetubehandlinginstructionsonpage
4.Precautionsshouldbetakentoprotecttheoperatorwhile
applyinghighvoltagestoavoidseriousinjuryordeath.
WARNING:MonoblockX-RaySourcemaybecomevery
hotduringoperation.Temperaturesshouldnotexceed50
degreesCelsiusonthepowersupplybox.
WARNING: MonoblockX-RaySourceproducesx-ray
radiation.Monoblock’stubesareshieldedwithametal
shield(brass)andhigh-Zpottingmaterials.Extrashielding
mayberequireddependingontheapplication.ONLY
OPERATEX-RAYTUBESINPROPERLYSHIELDED
ENCLOSURES.Itistheresponsibilityoftheoperatorto
ensurethatallapplicablesafetyprecautionsaretakenand
observed.
Figure 4
High Voltage Power Supply Timing
Operating the Monoblock X-Ray Source with a
Moxtek FTC-200 Controller:
TheFTC-200controllerisdesignedtopower,monitor,
andcontroltheMonoblockX-RaySource.Thiscontroller
containsallofthenecessaryelectronicstooperatethehigh
voltagepowersupply.TheFTC-200controllerprovides
inputpowertothehighvoltagepowersupply.TheFTC-
200controlsthehighvoltageandemissioncurrentsettings
onthex-raytube.TheFTC-200controllerincludesbuilt-
inmetersforconvenientmonitoringanddisplayofthe
highvoltageandemissioncurrent.RefertotheFTC-200
OperationManualforoperatinginstructions.
Timing Diagram:
Ifthemonoblocksourceiscontrolledbyadeviceother
thantheFTC-200controllerpleaserefertothetiming
diagram(Figure4)forthesequenceoftheinputvoltages
andcurrents.
Technical Support:
ForproducttechnicalsupportpleasecontactMoxtekat
[phone]orthroughthewebsiteatwww.moxtek.
com.