Farmer Type Chamber FAR 65-GB

Applications

• Absolute dosimetry in radiation therapyPhotons and High Energy Electrons.
• Traditional chamber construction for absolute dosimetry in x-rays
• Standard reference detector for reference dosimetry and scientific applications

Features

• Air ionisation chamber
• Chamber with graphite wall, for all applicable radiation conditions
• Non waterproof
• Vented through waterproof sleeve
• Guarded upto 15 mm from base
• Supplied with individual factory
• Calibration certificate and
• User’s guide (Provisional)

Material

• outer electrode Graphite (1.82 g/cm3)
• inner electrode Aluminium (2.70 g/cm3)
• build-up cap for 60Co Delrin (1.42 g/cm3)

Active Dimensions

• volume (nominal) 0.65 cm3
• total active length 23.1 mm
• inner diameter of cylinder 6.2 mm
• wall thickness 0.4 mm
• diameter of inner electrode 1.0 mm
• wall thickness of build-up cap for 60Co 3.9 mm

Cable & Connector

• Connector type: TNC triaxial
• Cable length : 1.40 m

Operational Data

• leakage current : < ± 10 x 10-15A
• sensitivity: 21 x 10-9 C/Gy
• radiation quality (e-): 1.3 MeV – 50 MV
• polarising voltage : + 300 V
• reference point w/o build-up cap : 13 mm from the distal end of the chamber
• reference point with build-up cap for 60Co : 17 mm from the distal end of the build-up cap

Contact Details:
James Marzelo
127, Bussa Udyog Bhavan
T. J. Road, Sewri (West)
Mumbai – 400 015 (India)
Tel : 91 22 24166630
Email: [email protected]
Website: www.rosalina.in