Plyusnin V V, Jakubowski L, Zebrowski J, Duarte P, Malinowski K, Fernandes H, Silva C, Rabinski M, Sadowski M J
Instituto de Plasmas e Fusão Nuclear-Laboratório Associado, Association Euratom/IST, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
Rev Sci Instrum. 2010 Oct;81(10):10D304. doi: 10.1063/1.3478658.
A diagnostics capable of characterizing the runaway and superthermal electrons has been developing on the ISTTOK tokamak. In previous paper, a use of single-channel Cherenkov-type detector with titanium filter for runaway electron studies in ISTTOK was reported. To measure fast electron populations with different energies, a prototype of a four-channel detector with molybdenum filters was designed. Test-stand studies of filters with different thicknesses (1, 3, 7, 10, 20, 50, and 100 μm) have shown that they should allow the detection of electrons with energies higher than 69, 75, 87, 95, 120, 181, and 260 keV, respectively. First results of measurements with the four-channel detector revealed the possibility to measure reliably different fast electrons populations simultaneously.
一种能够对逃逸电子和超热电子进行特征描述的诊断设备正在ISTTOK托卡马克装置上研发。在之前的论文中，报道了在ISTTOK中使用带有钛滤光片的单通道切伦科夫型探测器来研究逃逸电子。为了测量不同能量的快电子群体，设计了一种带有钼滤光片的四通道探测器原型。对不同厚度（1、3、7、10、20、50和100μm）滤光片的试验台研究表明，它们应分别允许检测能量高于69、75、87、95、120、181和260keV的电子。使用四通道探测器的首次测量结果揭示了同时可靠测量不同快电子群体的可能性。
