Exradin A14 Microchamber

92711 A14

Exradin A14 Microchamber

UNCOMPROMISING QUALITY

For assessing pinpoint radiation fields for IMRT, stereotactic, orthovoltage x-rays, stereotactic, and superficial skin therapy

EXRADIN MICROCHAMBERS ARE IDEAL FOR SMALL FIELD SIZE IMRT APPLICATIONS

The Model 14 Microchamber is designed specifically for assessing radiation fields encountered in IMRT and stereotactic radiosurgery. Outwardly, the Microchamber is identical to the Model 1 Exradin Miniature Shonka Thimble chamber; both use the same base and shell. However, the Microchamber is capable of measuring extremely small field sizes of 4 mm by 6 mm allowing for exceptional spatial resolution and exact pinpoint beam profile characterization.

FAST, PRECISE MEASUREMENTS

Its waterproof construction and two piece removable stem makes it ideal for use in water phantoms. The chamber vents through a flexible tube that surrounds the triaxial cable, ensuring the collecting volume is in pressure equilibrium with the surroundings. The design assures there are no stem or voltage soakage effects, providing precise and reliable measurements.

DURABLE CONSTRUCTION, BUILT TO LAST

The Model 14 Microchamber is offered in two versions of rugged, Shonka plastic, providing excellent conductivity and years of reliable use:


Specifications

REF Number 92711 - Model A14
92712 - Model T14
Collecting Volume 0.016 cm3
Nominal Calibration Factor 365 R/nC
Centroid of Collecting Volume Approximately 2.0 mm from tip of chamber
Collector Diameter 0.33 mm
Outside Diameter of Shell Collecting Volume 6.0 mm
Wall Thickness 1.0 mm
Shell, Collector, and Guard Material A14 - Shonka air-equivalent plastic C552, wire, conductive plastic
T14 - Shonka tissue-equivalent plastic A150
Venting Vented to the ambient via the flexible vent tube surrounding the triaxial cable
Stem 1.3 cm OD black phenolic, two-piece with 5.1 and 12.7 cm segments
Nominal Collection Efficiency 1.000
Maximum Polarizing Potential 1000 V
Nominal Inherent Leakage Currents 10-15 A
Low-Noise Triaxial Cable 50 ohms, 29 pF/ft, 1.5 m long
Signal Connector Triaxial BNC plug (2-Lug, male pin); others available upon request
High Voltage Connector Integral with triaxial connector (shell of chamber is common with connector body)
Waterproof Yes
Product Standards CE0413, Designed to meet IEC 60601-1, IEC 60731


Model 14 Schematic


Specifications subject to change without notice.