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The Model 1 chambers are small size thimble type with collection volume of 0.05 cm3. These are known as Miniature Shonka Thimble Chambers. Their small size allows good spatial resolution in depth dose measurements. The chambers may also be used for beam calibration.
Three versions are available: Model A1 is made of the air-equivalent plastic C552, Model M1 is made of magnesium, and Model T1 is made of the tissue-equivalent plastic A150.
Using an M1 and T1 in combination would allow one to separate the neutron and photon contributions to the dose in mixed fields. In this application, the use of argon in the M1 will minimize its neutron response.
Features:
- Axially symmetric design
- Small gas volume
- Homogeneous construction
- Complete guarding
- Waterproof construction
- Gas flow capability
- Integrally flexible, low-noise cable
- Separable minimum scatter stem
- Matching equilibrium caps
- Handsome, rugged wooden case
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