The 0.6 cm3 NE2581A ionization chamber is developed from the original design by Professor F. T. Farmer. It is constructed using a tissue equivalent inner electrode and thimble, with a detachable build-up cap that also protects the thimble. Careful guarding of the signal conductors and cable has ensured low post-irradiation leakage. The NE2581A is used throughout the world for the measurement of photon and electron beam dosimetry. This is particularly suitable for routine output checks of X-ray, Co60 and Linacs.
Product includes the ion chamber, detachable build-up cap, 10m cable, TNC plug and carrying case.
1.5 x 10-14A
50 kR.min-1, continuous100 mR/Pulse, pulsed
50 Gy.min-1, continuous1 mGy/Pulse, pulsed
130 kR.min-1, continuous150mR/Pulse, pulsed
1.3 kGy.min-1, continuous1.5 mGy/Pulse, pulsed
NPL2611A Ion Chamber
NE2571A Therapy Dosimetry Ion Chamber