Product Information

PIX-RAY TUBE
DF-161SBR
Stationary Anode X-ray Tube


Especially designed for mobile type surgical
X-ray TV apparatus.

Provided with an insulation cylinder and leadcylinder.

This tube has focus 1.6, and 0.5 foci and isavailable for maximum tube voltage 125 kV.

Installed in the same enclosure with the highvoltage transformer.

General Data
Electrical:
Circuit:High Voltage Generator ............................................ Constant Potential High-Voltage Generator
Grounding .......................................................................................................... Center grounded
Nominal X-ray Tube Voltage ................................................................................................... 125 kV
Nominal Focal Spot Value:
Large Focus ............................................................................................................................... 1.6
Small Focus ............................................................................................................................... 0.5
Nominal Anode Input Power (at 1.0s) ..................................................................... See Rating Chart
Large Focus ........................................................................................................................ 4000 W
Small Focus ........................................................................................................................... 700 W
Nominal Radiographic Anode Input Power:
Large Focus ........................................................................................................................ 4100 W
Small Focus ........................................................................................................................... 720 W
Exposure Duty Cycle:
Large Focus ........................................................................................................................... 1:40
Small Focus ........................................................................................................................... 1:20
(Exposure Time : Interval time)★The information contained herein is presented only as a guide for the application of our products. No responsibility is assumed by Canon Electron Tubes& Devices Co., Ltd. (CETD) for any infringements of patents or other rights of the third parties which may result from its use.
No license is granted by implication or otherwise under any patent or patent rights of CETD or others.
★The information contained herein may be changed without prior notice. It is therefore, advisable to contact to CETD before processing with the design ofequipment incorporating this product.

DF-161SBR

Mechanical:
Dimensions:Overall Length ......................................................................................... See dimensional outline
Maximum Diameter ................................................................................. See dimensional outline
Target:Anode Angle ............................................................................................................... 16 degrees
Material .......................................................................................................................... Tungsten
Inherent Filtration .................................................................................... At least 0.8 mm Al at 50 kV
X-ray Coverage .................................................................................. 430 × 430 mm at SID 909 mm
Weight ....................................................................................................................... Approx. 1100 g
Cooling Method .............................................. Oil immersed (60℃ Max.) and convection oil cooling.
Tube Holding: ....................................................... Holding the insulation cylinder or the lead cylinder

Absolute Maximum and Minimum Ratings(At any time, these values must not be exceeded)
Maximum X-ray Tube Voltage ................................................................................................ 125 kV
Between Anode (or Cathode) and Ground ............................................................................. 62.5 kV
Minimum X-ray Tube Voltage ................................................................................................... 40 kV
Maximum X-ray Tube Current:
Large Focus .......................................................................................................................... 60 mA
Small Focus ........................................................................................................................... 15 mA
Maximum Filament Current:
Large Focus .......................................................................................................................... 4.3 A
Small Focus .......................................................................................................................... 3.1 A
Filament Voltage: (At Maximum Filament Current)
Large Focus ................................................................................................................. 5.0 ~ 6.4 V
Small Focus ................................................................................................................. 3.5 ~ 4.9 V
Filament Frequency Limits ........................................................... DC or AC (Sine Wave) 0 ~ 20 kHz
Thermal Characteristics: (See Anode Thermal Characteristics)
Anode Heat Content ......................................................................................................... 35.5 kJ
Maximum Anode Heat Dissipation Rate ............................................................................. 600 W
Maximum Radiographic Exposure Time ..................................................................................... 10 s
Maximum Fluoroscopic Duration ........................................................................ 600 W - 20 minutes-2-DF-161SBR

Environmental Limits
Operating Limits (in dielectric oil):
Oil Temperature ............................................................................................................ 10 ~ 60℃
Oil pressure .............................................................................................................. 70 ~ 140 kPa
Shipping and Storage Limits:
Temperature ................................................................................................................ -40 ~ 70℃
Humidity ........................................................................................................................ 10 ~ 90 %(No condensation)
Atmospheric Pressure .............................................................................................. 50 ~ 106 kPa-3-

DF-161SBR

Maximum Rating Charts(Absolute maximum rating charts)
Constant Potential High-Voltage Generator
Nominal Focal Spot Value: 1.660kV6050kV

80kV

50TUBE CURRENT [mA]

40kV

70kV

90kV
100kV

40110kV
125kV30201000.10.2

0.3

0.5 0.71235710EXPOSURE TIME [s]Nominal Focal Spot Value: 0.51540kV50kV

TUBE CURRENT [mA]

60kV70kV

1080kV90kV
100kV110kV
125kV
500.1

0.2

0.3

0.5 0.7

12EXPOSURE TIME [s]

-4-

35710

DF-161SBR

Emission & Filament Characteristics
Constant Potential High-Voltage Generator
Nominal Focus Spot Value: 1.660

640kV
80kV

TUBE CURRENT [mA]

405125kV

304.5Ef

204103.503.3

3.5

3.7

3.9

4.1

4.3FILAMENT VOLTAGE [V]5.5503FILAMENT CURRENT [A]This graph indicates typical characteristics.

Nominal Focus Spot Value: 0.551510480kV
125kV
Ef

5032.32.52.7

2.9

FILAMENT CURRENT [A]This graph indicates typical characteristics.

-5-3.1

2FILAMENT VOLTAGE [V]

TUBE CURRENT [mA]

40kV

DF-161SBR

Anode Heating / Cooling Curve
40
COOLINGHEAT STORAGE [kJ]

35600W

3025300W

201510100W

5HEATING
0060120180240300

360

TIME [s]-6-420480540600DF-161SBR

Dimensional OutlineUnit: mm4-O.1
O4.05±00.1±82

M5 10DEEP

86 ±1.5176 ±2.54060

O 22 ±1
O 25 ±12621O 40

CENTRAL X-RAY

9070

FOCAL SPOT

LEAD CYLINDERINSULATION CYLINDER

O 60 ±1.5
O 64 ±1.5

KL7.3)( O1C

SHORT PIN
SN-7-

L ： LARGE FOFUS
S ： SMALL FOCUS
C ： COMMON
K ： CATHODE
N ： NOT FOR USEMarketing Engineering Group, Sales Department
1385, Shimoishigami, Otawara-shi, Tochigi 324-8550, Japan
Tel: +81-287-26-6666
Fax: +81-287-26-6060
https://etd.canon･The head office of Canon Electron Tubes & Devices Co., Ltd. has been certified to meet all the requirements of Environmental Management System ISO14001.
･Canon Electron Tubes & Devices Co., Ltd. has been certified to meet all the requirements of Quality Management Systems ISO9001 and ISO13485.
Product scope is referred to the following URL. https://etd.canon/eng/company/quality.htm.

PE-DF-161Series 2018-11