X-ray Photodiodes
Description
X-ray photodiodes are specialized semiconductor devices designed to detect X-ray radiation. They convert the energy from incoming X-ray photons into an electrical signal, which can then be measured and analyzed. These devices are crucial in various fields where precise detection of X-ray radiation is required.
Working Principle
X-ray photodiodes operate based on the principles of photoelectric emission or photo-conductivity. When X-ray photons strike the photodiode, they are absorbed if their energy exceeds the band gap energy of the photodiode material. This absorption results in the generation of electron-hole pairs, which contribute to an electrical current. The efficiency of this conversion process is nearly 100%, meaning almost every absorbed photon generates a corresponding electron. This high efficiency makes X-ray photodiodes particularly useful for accurate and sensitive detection of X-ray radiation.
Applications
X-ray photodiodes are used in a variety of applications that require the detection and measurement of X-ray radiation. Specific examples include medical imaging equipment, where they help in capturing detailed images of the human body, and in industrial settings for non-destructive testing and inspection of materials. They are also employed in scientific research for analyzing the structural properties of materials at the atomic level.
Advantages over other Photodiodes
X-ray photodiodes offer several advantages over other types of photodiodes. Their high quantum efficiency ensures that nearly all absorbed X-ray photons are converted into an electrical signal, providing superior sensitivity and accuracy. This makes them particularly suitable for applications requiring precise measurements of X-ray radiation, such as in medical diagnostics and scientific research.
Limitations
One of the limitations of X-ray photodiodes is their sensitivity to radiation damage over time, which can affect their performance and lifespan. Additionally, they may require specialized materials and fabrication processes to ensure optimal performance, which can increase their cost compared to other types of photodiodes.
Considerations
When considering the use of X-ray photodiodes, several factors should be taken into account. Initial costs can be higher due to the specialized materials and manufacturing processes required. Operating expenses may also be elevated due to the need for shielding and cooling systems to protect the photodiodes from radiation damage. Durability is a concern, as prolonged exposure to high levels of X-ray radiation can degrade the photodiode's performance. Accuracy is generally high, but regular calibration may be necessary to maintain precision. Replacement and maintenance costs should also be considered, as these devices may need to be replaced more frequently than other types of photodiodes due to radiation damage.
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection. The S11212-021 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element variations compared to our... [See More]
- Photodiode Spectral Response: X-ray
- Peak Sensitivity Wavelength: 920
- Spectral Response Range: 340 to 1100
- Array: Array
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection. The S11212-121 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element variations compared to our... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection. The S11212-321 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element variations compared to our... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection. The S11212-422 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element variations compared to our... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode arrays for X-ray non-destructive inspection, slender board type. The S11299-021 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element... [See More]
- Photodiode Spectral Response: X-ray
- Peak Sensitivity Wavelength: 920
- Spectral Response Range: 340 to 1100
- Array: Array
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection, slender board type. The S11299-121 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode arrays for X-ray non-destructive inspection, slender board type. The S11299-321 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode arrays for X-ray non-destructive inspection, slender board type. The S11299-422 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It has improved sensitivity uniformity and smaller photodiode element... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 2.5 mm). The S12362-021 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily... [See More]
- Photodiode Spectral Response: X-ray
- Peak Sensitivity Wavelength: 920
- Spectral Response Range: 340 to 1100
- Array: Array
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 2.5 mm). The S12362-121 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection. The S12362-321is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily couples to scintillators... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 2.5 mm). The S12362-421 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 2.5 mm). The S12363-021 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily... [See More]
- Photodiode Spectral Response: X-ray
- Peak Sensitivity Wavelength: 920
- Spectral Response Range: 340 to 1100
- Array: Array
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 2.5 mm). The S12363-121 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
BBack-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 2.5 mm). The is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily couples to... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 2.5 mm). The S12363-421 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. The back-illuminated photodiode array is also simple to handle and easily... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode arrays for X-ray non-destructive inspection (element pitch: 1.17 mm). The S12858-021 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It is modified versions of our previous products (S11212 series: 1.575... [See More]
- Photodiode Spectral Response: X-ray
- Peak Sensitivity Wavelength: 920
- Spectral Response Range: 340 to 1100
- Array: Array
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 1.17 mm). The S12858-122 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It is modified ed versions of our previous products (S11212 series: 1.575... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from Hamamatsu Photonics
Back-illuminated photodiode array for X-ray non-destructive inspection (element pitch: 1.17 mm). The S12858-324 is a back-illuminated type 16-element photodiode array specifically designed for non-destructive X-ray inspection. It is modified versions of our previous products (S11212 series: 1.575 mm... [See More]
- Photodiode Spectral Response: X-ray
- Number of Array Elements: 16
- Array: Array
- Rise Time: 6500
from OSI Optoelectronics
This series consists of 16- element arrays: the individual elements are grouped together and mounted on PCB. For X-Ray or Gamma-ray application, these multi-channel detectors offer scintillator-mounting options: BGO, CdWO4 or CsI(TI). BGO (Bismuth Germinate) acts as an ideal absorber: it is widely... [See More]
- Photodiode Spectral Response: X-ray; Visible
- Spectral Response Range: 350 to 1100
- Photodiode Type: PIN Photodiode
- Peak Sensitivity Wavelength: 930
from First Sensor AG
Alpha, beta, gamma, and X-ray radiation can be detected with silicon PIN photodiodes either directly via the absorption in the crystal lattice or indirectly via the measurement of the luminescence radiation of a scintillation crystal. The Series X from First Sensor features optimized silicon PIN... [See More]
- Photodiode Spectral Response: X-ray
- Active Area Diameter or Length: 10
- Photodiode Type: PIN Photodiode
- Rise Time: 1000
from MOXTEK, Inc.
The XPIN ® detector is Moxtek ’s best performing Si-PIN detector. XPIN detectors use a silicon PIN diode, multi-layer collimator, and thin DuraBeryllium ® window, achieving great resolution and x-ray sensitivity. The XPIN preamp provides a low-noise signal output to an analog or... [See More]
- Photodiode Spectral Response: X-ray
- Photodiode Material: Silicon
- Photodiode Type: PIN Photodiode
from OSI Optoelectronics
This series consists of 16- element arrays: the individual elements are grouped together and mounted on PCB. For X-Ray or Gamma-ray application, these multi-channel detectors offer scintillator-mounting options: BGO, CdWO4 or CsI(TI). BGO (Bismuth Germinate) acts as an ideal absorber: it is widely... [See More]
- Photodiode Spectral Response: X-ray; Visible
- Spectral Response Range: 350 to 1100
- Photodiode Type: PIN Photodiode
- Active Area Diameter or Length: 2.08
from MOXTEK, Inc.
The XPIN ® detector is Moxtek ’s best performing Si-PIN detector. XPIN detectors use a silicon PIN diode, multi-layer collimator, and thin DuraBeryllium ® window, achieving great resolution and x-ray sensitivity. The XPIN preamp provides a low-noise signal output to an analog or... [See More]
- Photodiode Spectral Response: X-ray
- Photodiode Material: Silicon
- Photodiode Type: PIN Photodiode
from OSI Optoelectronics
The Large Active Area High Speed Detectors can be fully depleted to achieve the lowest possible junction capacitance for fast response times. They may be operated at a higher reverse voltage, up to the maximum allowable value, for achieving even faster response times in Nano seconds. The high... [See More]
- Photodiode Spectral Response: X-ray
- Peak Sensitivity Wavelength: 830
- Photodiode Type: PIN Photodiode
- Active Area Diameter or Length: 5.8
from OSI Optoelectronics
OSI Optoelectronics' 1990 R&D 100 award winning X-UV detector series are a unique class of silicon photodiodes designed for additional sensitivity in the X-Ray region of the electromagnetic spectrum without use of any scintillator crystals or screens. Over a wide range of sensitivity from 200 nm to... [See More]
- Photodiode Spectral Response: X-ray; UV
- Spectral Response Range: 200 to 1100
- Photodiode Type: PIN Photodiode
- Active Area Diameter or Length: 2.57
from OSI Optoelectronics
OSI Optoelectronics' 1990 R&D 100 award winning X-UV detector series are a unique class of silicon photodiodes designed for additional sensitivity in the X-Ray region of the electromagnetic spectrum without use of any scintillator crystals or screens. Over a wide range of sensitivity from 200 nm to... [See More]
- Photodiode Spectral Response: X-ray; UV
- Spectral Response Range: 200 to 1100
- Photodiode Type: PIN Photodiode
- Active Area Diameter or Length: 5
from OSI Optoelectronics
OSI Optoelectronics' 1990 R&D 100 award winning X-UV detector series are a unique class of silicon photodiodes designed for additional sensitivity in the X-Ray region of the electromagnetic spectrum without use of any scintillator crystals or screens. Over a wide range of sensitivity from 200 nm to... [See More]
- Photodiode Spectral Response: X-ray; UV
- Spectral Response Range: 200 to 1100
- Photodiode Type: PIN Photodiode
- Active Area Diameter or Length: 11.33