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X-ray tube with photocathode
The cold cathode X-ray tube (PSF) uses an integrated photomultiplier tube as a source of electrons instead of traditional cathodes. X-ray radiation is controlled by the magnitude of the luminous flux incident on the photocathode of the PMT. An LED, a laser, a lamp or any other source can be used as a light source.
Part number:
Supplier:
The Ruselectronics holding companyDescription
DESCRIPTION
Constructive design:
Samples of PSF with a diameter of 44 mm without a beryllium window and 55 mm with a beryllium window with a diameter of 12 mm were made. Anode materials: copper, silver, tungsten.
Application
medicine (pulse
X-ray tomographs);
biology;
x-ray far
space communications;
X-ray and X-ray analysis equipment.
Virtues
the ability to work in continuous and pulsed modes;
in pulsed mode, it provides 100% modulation in the frequency range from 100 Hz to 1 MHz with a duty cycle of 2 (duty factor 0.5);
inertialessness;
X-ray intensity can be easily controlled by LED current;
the purity of the spectrum resulting from the use of a photocathode (cold cathode) as a source of electrons;
the use of different materials of the photocathode of the photomultiplier allows to obtain a PSF with control of the luminous flux of different spectral ranges from UV to near IR;
the possibility of obtaining anode current up to 1 mA at low anode voltages (relevant in the version with a beryllium window);
the ability to use the same device to obtain soft X-rays (at low voltages) and radiation of medium hardness (at voltages up to 100 kV)
Constructive design:
Samples of PSF with a diameter of 44 mm without a beryllium window and 55 mm with a beryllium window with a diameter of 12 mm were made. Anode materials: copper, silver, tungsten.
Application
medicine (pulse
X-ray tomographs);
biology;
x-ray far
space communications;
X-ray and X-ray analysis equipment.
Virtues
the ability to work in continuous and pulsed modes;
in pulsed mode, it provides 100% modulation in the frequency range from 100 Hz to 1 MHz with a duty cycle of 2 (duty factor 0.5);
inertialessness;
X-ray intensity can be easily controlled by LED current;
the purity of the spectrum resulting from the use of a photocathode (cold cathode) as a source of electrons;
the use of different materials of the photocathode of the photomultiplier allows to obtain a PSF with control of the luminous flux of different spectral ranges from UV to near IR;
the possibility of obtaining anode current up to 1 mA at low anode voltages (relevant in the version with a beryllium window);
the ability to use the same device to obtain soft X-rays (at low voltages) and radiation of medium hardness (at voltages up to 100 kV)