Bolometers for CIT

 

作者: J. Schivell,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1988)
卷期: Volume 59, issue 8  

页码: 1872-1874

 

ISSN:0034-6748

 

年代: 1988

 

DOI:10.1063/1.1140092

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Designing bolometers for Compact Ignition Tokamak presents difficult, perhaps insurmountable, challenges. Detector environment will be quite harsh, viewing access will be severely limited, and, most importantly, the heating of detectors by neutron and gamma radiation will be larger than that by the radiation losses to be measured. Furthermore, the radiation losses themselves will no longer be dominated by impurity radiation as in earlier machines, but will be a combination of impurity radiation, bremsstrahlung, and synchrotron radiation. Possible approaches to a design have been developed, based on optimizing the response to VUV‐ and x‐radiation, possible local shielding, subtraction of thenand &ggr; heating, constantinsitucalibration, and deployment of the detectors in a tangentially viewing array. The array makes it possible to cover the plasma cross section, as well as to see into the divertors. Estimates indicate that it should be possible to make successful measurements of the two‐dimensional radiation loss profile.

 

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