'Linac'에 해당되는 글 3건

  1. 2012.06.20 :: Alphatron Medical Linac (선형가속기)
  2. 2012.06.15 :: CX1551 Thyratron
  3. 2011.08.12 :: E2V MG5193 Tunable S-Band Magnetron
Medical Parts 2012. 6. 20. 17:48

Alphatron Electronic Parts B.V. and e2v technologies have formed a strategic partnership for
after sales support of linear accelerator tube spares. For the customers, hospitals, this means there's a clear and accessible global point of contact for purchasing the Linac magnetrons
and thyratrons when immediate delivery is required.

Alphatron and e2v have a 25-year relationship, of which Linac magnetrons and thyratrons
have been a part for over 20 years.

알파트론 그룹은 E2V사와 20년이상 전략적인 파트너쉽과  릴레이션쉽을 가지고
선형가속기(Linac)의 부속품인 마그네트론 및 사이렉트론(Thyratron)을 공급해왔습니다.

상시 재고를 확보해 있어서 최단시간에 공급이 가능합니다.

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Medical Parts/Thyratron 2012. 6. 15. 14:47

 

ABRIDGED DATA

Deuterium-filled tetrode thyratron, featuring low jitter and low anode delay time drift.
Suitable for use at high pulse repetition rates,
in parallel for switching higher powers, or for switching long pulses.
A reservoir operating from the cathode heater supply is incorporated.
The tube is flange mounted with flexible lead connections.

Peak output power

16.5

MW max

Peak forward anode voltage

33

kVmax

Peak anode current

1.0

kA max

Average anode current

1.25

A max

Anode heating factor

14 x 109 VApps

max

Electrical

Cathode (connected internally
to mid-point of heater)

oxide coated

Heater voltage

6.3 ± 5%

V

Heater current

22

A

Tube heating time (minimum)

5.0

min

         Inter-electrode capacitances (approximate):

anode to grid 2 (grid 1 and
cathode not connected)

13

pF

anode to grid 1 (grid 2 and
cathode not connected)

7.5

anode to cathode (grid 1 and
grid 2 not connected)

26

Mechanical

Overall length

11.850 inches (301.0 mm) max

Overall diameter

3.312 inches (84.12 mm) max

Net weight

1 1/2 pounds (0.7 kg) approx

Mounting position (see note 1)

any

Top cap (see note 2) B.S.448-CT3
Cooling natural

 

NOTES

1. Clamping is only permissible by the base.
2. A large area anode connector, Marconi Applied Technologies type MA360, is recommended.

 

OUTLINE(All dimensions without limits are nominal)

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posted by (주)얼라이드이파트(AEP) 얼라이드이파트

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Medical Parts/Magnetron 2011. 8. 12. 15:48

GENERAL DATA

Electrical

Mechanical

Frequency range
(cooling water 40˚C)

2993 to 3002

MHz

Output

to no.10(WR284) waveguide
(72.14 x 34.04 mm internal)

Peak output power

2.6

MW

Overall dimensions

see Outline

Cathode

indirectly heated

Net weight

8kg approx

Heater voltage (see note 2)

8.5

V dc

Mounting position
(see note 4)

any

Heater current

9.0

A

Tuner revolutions to cover frequency range
(see note 3)

4.75

Cathode pre-heating time (minimum)

3.0

min

Cooling

water /
The use of an isolator is
recommended (see note 1)

Peak heater starting current,
not to be exceeded

20

A max

Magnet

separate

 

NOTES

1. It is recommended that the magnetron should be isolated from the load by means of an isolator
of approved design.
Information on the characteristics of a suitable isolator may be obtained from e2v technologies.

2. With no anode input power. It is recommended that a DC power supply is used to operate the
heater. Use of an AC supply may result in damage to the heater circuit.
The use of an AC heater supply during HT operation may result in frequency modulation of the RF
pulses. Contact e2v technologies for further information.
The heater voltage must be reduced within 5 seconds after the application of HT according to the
schedule shown on page 4.
The magnetron heater must be protected against arcing by the use of a minimum capacitance of
4000 pF shunted across the heater directly at the input terminals; in some cases a capacitance
as high as 2 mF may be necessary depending on the equipment design.

3. The tuner mechanism is driven by means of three tapped holes in the tuner knob(see outline drawing)
via a flexible drive. The torque required is 0.7 kg-cm minimum; the torque applied must not exceed
5.0 kg-cm.

4. To minimise frequency deviation when the magnetron is rotated about a horizontal axis, this axis
should be parallel to the axis of the tuner.

 

OUTLINE DIMENSIONS

 

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