THE VISIBLE, IMAGING DIODE-ARRAYS ON ALCATOR C-MOD

被引：13

作者：

TERRY, JL

SNIPES, JA

KURZ, C

机构：

[1] MIT Plasma Fusion Center, Cambridge

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1995年 / 66卷 / 01期

关键词：

D O I：

10.1063/1.1146349

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A set of multichord, absolutely calibrated viewing arrays has been used to measure the distributions of H/D and C+2 emissions. A total of 227 chordal views are available, with the chords separated at the plasma by ∼1 cm typically. The chord brightness profiles have been combined and inverted (without recourse to symmetry assumptions) to yield local volume emission rates. Because of the thickness of the superstructure surrounding Alcator C-Mod, the views are from points re-entrant to the vacuum vessel. All but one of the arrays employ 64-channel, linear diode arrays, which are read out serially, thus requiring only one digitizer channel per array. Variable frame rates (∼1 Hz to ∼3.5 kHz) result in an extremely large dynamic range for these detectors. A 35-channel diode array which is read out in parallel and can track fast events like ELMs or pellets is also in use. © 1995 American Institute of Physics.

引用

页码：555 / 557

页数：3

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