Diamond-based radiation detectors
We offer the diamond ionizing radiation detectors of ADII-line for science and industrial purposes. Detectors ADII-line consist of diamond semiconductor plate, installed inside of special BNC-connector.
The dimensions of entry diaphragm are defined by the size of a diamond plate.
Charged particles to be registered pass through a diaphragm and hit a semiconductor plate, thus resulting in radiation induced electron-hole pairs formation in its volume due to interactions with incoming particles.
The detectors are manufactured by orders with the parameters predefined by the customers.
The detectors are especially effective for a high-energy physics research, specifically for registration of the alpha particles, deuterium protons, electrons and heavy ions and applicable as the components of scientific and industrial radiation measuring equipment, medical therapeutic systems, ionizing radiation measuring systems, spectrometric and dosimetric devices, heavy-ion detection, etc.
ADII-1 is designed for registration of energy spectrum of high-energy charged particles.
ADII-2 is designed for conversion of high-energy charged particles flow, emitted by a-source(s) or/and electrons (b-particles), which placed in front of detector’ entry window, into electric impulses (signals) string. ADII-2 is able to work in the single counting mode and in the current mode.
ADII-3 is designed for dosimetric measurement of photon and electron radiation; registration of impulses of x-ray, γ- and β-radiation with a high temporal resolution. Suitable for dose distribution measurements in high energy and electron beams.
The ADII-3/G detectors were tested for conformance with well-known 60003 PTW diamond detectors.
The main of devices parameters are the same for these types of detectors.
ADII-1 line of detectors has been designed to make measurements of energy spectra of alpha-particles, protons, neutrons, heavy ions and to be used in spectrometer devices (i.e. charge-sensitive preamplifiers and multi-channel analyzers).
ADII-1 diamond detectors of ionizing radiation
Standard options:
15 mm x 27 mm metal case
Quality Control Certificate
QC test results datasheet hard copy (in electronic format upon request)
Standard (alpha-particles) QC testing as in the table below
| Model: | ADII-1.1 | ADII-1.2 | ADII-1.3 |
| Energy resolution* | ≤2% | 2-5% | 5-10% |
| Deviation of energy resolution value, less than* | 2% | 2% | 2% |
| Displacement of energy peak, less than* | 5% | 5% | 5% |
| Non-stability of counting, less than* | 2% | 2% | 2% |
| Thickness of semiconductor element | 0.1...0.4 mm | 0.1...0.4 mm | 0.1...0.4 mm |
| Surface area of semiconductor element | 2...9 mm2 | 2...9 mm2 | 2...9 mm2 |
* Standard QC option and measured under working voltage for alpha-particles with energy of 5.5 MeV for 8 hours period.
Other characteristics
| Model: | ADII-1.1 | ADII-1.2 | ADII-1.3 |
| Bias voltage | 100...400 V | 100...400 V | 100...400 V |
| Dark current, less than | 0.5×10-12 A | 0.5×10-12 A | 0.5×10-12 A |
| Impulse rise time, less than | 1.0×10-9 sec | 1.0×10-9 sec | 1.0×10-9 sec |
Optional casing:
Mounting into a case as provided by customer
Mounting into a case designed according to customer's specifications
Optional testing
| Radiation type: | Neutrons | Protons | Heavy Ions |
| Energy resolution | |||
| Deviation of energy resolution value | |||
| Displacement of energy peak | |||
| Non-stability of counting for 8 hours |
QC test results datasheet hard copy (in electronic format upon request)
ADII-2 radiometric diamond detector of ionizing radiation
ADII-2 detector has been designed to make measurements of volume and specific activities of radionuclides in liquid or gas environment. The detector can work either in counting or current mode. The detector has been successfully used for dose monitoring of photon and high-energy corpuscular radiation.
Standard Option:
15 mm x 27 mm metal case
Quality control certificate
QC test results datasheet hard copy (in electronic format upon request)
Standard (Beta-radiation) QC testing as in the table below
| Sensitivity, not less | 1.4×10-19 C×mm2×b-part.-1 |
| Dark current, less than | 0.5×10-12 A |
| Non-stability of counting for 8 hour, less than | 2% |
| Thickness of semiconductor element | 0.1...0.6 mm |
| Surface area of semiconductor element | 2...10 mm2 |
Other characteristics
| Energy range: a-particle, b-particle, g- & x-ray radiation | 4.5 MeV to 7.6 MeV; 65 keV to 1.0 MeV. 2 keV to 3 MeV |
| Measuring range | 104...1010 becquerel/dm3 |
| Impulse rise time, less than | 1.0×10-9 sec |
| Bias voltage | 50...200 V |
| Sensitive element | Natural diamond |
Optional casing:
Chemically resistant 12 mm x 50 mm polystyrene case with cable
Mounting into a case as provided by customer
Mounting into a case designed according to customer's specifications
Optional testing
| Radiation type: | Alpha-particle | Gamma-radiation | X-ray radiation |
| Sensitivity | |||
| Non-stability of counting for 8 hours |
QC test results datasheet hard copy (in electronic format upon request)
ADII-3 dosimetric diamond detectors of ionizing radiation
ADII-3 line of detectors has been designed to make dose measurements of photon, electron and proton radiations and to be used in dosimetric devices. Its high sensitivity and small active volume allow the detector to be successfully used to measure radiation characteristics of therapeutic radiation beams, radiation fields and phantom absorbed doses. Also, the detector can be successfully used for direct in-vivo measurements of radiation fields and absorbed doses on human patients. The detector is compatible with Max 4000, PTW UNIDOS, CNMC1150/1100, 292 Therarad, Keithley 6517 electrometers.
Standard Option: waterproof 7 mm x 20 mm polystyrene case with cable
Quality control certificate
+ QC test results datasheet hard copy (in electronic format upon request)
Standard QC testing as in the table below
| Model | ADII-3.1 | ADII-3.2 | ADII-3.3 |
| Linearity, 0.05 Gy/min to 5.0 Gy/min | ≤2% | 2...4% | 4...6% |
| Sensitivity | 20...300 nC/Gy | 20...300 nC/Gy | 20...300 nC/Gy |
| Dark current, less than | 0.5×10-12 A | 0.5×10-12 A | 0.5×10-12 A |
| Thickness of semiconductor element | 0.1...0.4 mm | 0.1...0.4 mm | 0.1...0.4 mm |
| Sensitive volume | 1...6 mm3 | 1...6 mm3 | 1...6 mm3 |
Other characteristics
| Model | ADII-3.1 | ADII-3.2 | ADII-3.3 |
| Range of dose rate | 0.05...30 Gy/min | 0.05...30 Gy/min | 0.05...30 Gy/min |
| Energy range: Photons/Electrons | 0.08...25 MeV / 4...25 MeV |
0.08...25 MeV / 4...25 MeV |
0.08...25 MeV / 4...25 MeV |
| Pre-irradiation dose, less than | 10 Gy | 10 Gy | 10 Gy |
| Maximum adsorption dose, not less | 107 Gy | 107 Gy | 107 Gy |
| Bias voltage | 50...200 V | 50...200 V | 50...200 V |
| Sensitive element | Natural diamond | Natural diamond | Natural diamond |
Optional casing:
15mm x 27 mm metal case
Mounting into a case as provided by customer
Mounting into a case designed according to customer's specifications
Recommended operation conditions: the temperature of an environment from +5..+30°C; relative humidity up to 85% at normal temperature.
Available types of cases are: hermetic water-proof polystyrene case, metal cases based on standard BNC connector.