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  2. Diode detector suitable for small field and pinpoint measurements (Chiyoda Technol Co., Ltd.)
Diode detector suitable for small field and pinpoint measurements-EXRADIN D1H
Diode detector suitable for small field and pinpoint measurements-Chiyoda Technol Co., Ltd.

Diode detector suitable for small field and pinpoint measurements
Chiyoda Technol Co., Ltd.

About This Product

Diode detectors D1V and D1H, which can measure microfields, are suitable for small field measurements and pinpoint measurements. The diode detector D1V is vertically arranged and has a shape suitable for measurements with water phantoms, while the D1H is horizontally arranged and can be installed in water phantoms or solid phantoms. Both D1V and D1H have excellent spatial resolution and have little angular dependence, allowing for consistent and accurate measurements.

■EXRADIN D1V, D1H diode detector performance

D1V and D1H diodes have an extremely small active measurement area and exhibit clear resolution in profile measurements. This provides high visibility of the beam penumbra and allows for accurate measurements.

■Minimal direction dependence

When performing measurements using a diode-type detector, angular dependence due to the orientation of the detector is generally a problem. EXRADIN D1V, D1H diodes have an angular dependence of only less than 0.5% when the beam incidence angle is within 20°. EXRADIN D1V, D1H diodes are suitable for measuring beam penumbra and edges.

■Ideal for measurements in small radiation fields

EXRADIN D1V, D1H diodes can be used depending on the measurement modality. When measuring with a scanning water phantom or Lucy3DQA phantom, a D1V diode with the detection surface at the tip is suitable. Install and measure perpendicular to the beam. When measuring using a scanning water phantom or plate phantom, the D1H with its detection surface on the side is suitable. Install and measure at right angles to the beam. For illuminations smaller than 20cm x 20cm, EXRADIN D1V, D1H diodes provide excellent spatial resolution and low-noise measurements.

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    Diode detector suitable for small field and pinpoint measurements

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2 Models of Diode detector suitable for small field and pinpoint measurements

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Waterproof Dose linearity Applied voltage during measurement Measurement energy width Temperature dependence Standard sensitivity Detection area size Detection surface depth Material Directional dependence Recommended field size Sensitivity decrease (at 6MV) Outer diameter Usage environment Leakage current Field size dependence Pulse dependence Diode type Connector Cable
Diode detector suitable for small field and pinpoint measurements-Part Number-EXRADIN D1H

EXRADIN D1H

Available upon quote

Yes (up to BNC connector)

＞99.9%

0V

Photon beam Co-60~25MV, electron beam 6~20MeV

＜0.4%/°

~5nC/Gy

Area 1㎟ x thickness ~0.05mm

0.8mm from the surface

Water equivalent epoxy resin shield, C552 plastic shell

<±0.5%, slope ±20°

20cm x 20cm or less

＜1.0%/kGy

D1V (REF 92740) φ6.88mm×46.2mm, D1H (REF 92741) 6.88mm×6.88mm×34.8mm

Temperature 15~35℃, humidity 20~80% (no condensation), atmospheric pressure 650~770mmHg

＜100fA

＞97.0%

>99.5% (in clinical range)

P type Si

Triax BNC (connector type can be changed)

Length 1.5m

Diode detector suitable for small field and pinpoint measurements-Part Number-EXRADIN D1V

EXRADIN D1V

Available upon quote

Yes (up to BNC connector)

＞99.9%

0V

Photon beam Co-60~25MV, electron beam 6~20MeV

＜0.4%/°

~5nC/Gy

Area 1㎟ x thickness ~0.05mm

0.8mm from the surface

Water equivalent epoxy resin shield, C552 plastic shell

<±0.5%, slope ±20°

20cm x 20cm or less

＜1.0%/kGy

D1V (REF 92740) φ6.88mm×46.2mm, D1H (REF 92741) 6.88mm×6.88mm×34.8mm

Temperature 15~35℃, humidity 20~80% (no condensation), atmospheric pressure 650~770mmHg

＜100fA

＞97.0%

>99.5% (in clinical range)

P type Si

Triax BNC (connector type can be changed)

Length 1.5m

Click on the part number for more information about each product

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Chiyoda Technol Co., Ltd.

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