ABSOLUTE CALIBRATION OF NEUTRON DETECTION SYSTEMS ON TFTR AND ACCURATE COMPARISON OF SOURCE STRENGTH MEASUREMENTS TO TRANSPORT SIMULATIONS

被引：19

作者：

BARNES, CW ^{[1
]}

BELL, MG ^{[1
]}

HENDEL, HW ^{[1
]}

JASSBY, DL ^{[1
]}

MIKKELSEN, D ^{[1
]}

ROQUEMORE, AL ^{[1
]}

SCOTT, SD ^{[1
]}

STRACHAN, JD ^{[1
]}

ZARNSTORFF, MC ^{[1
]}

机构：

[1] PRINCETON PLASMA PHYS LAB,PRINCETON,NJ 08543

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 10期

关键词：

D O I：

10.1063/1.1141671

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Accurate, absolutely calibrated measurements of the neutron source strength are needed for determining the quality of plasma performance, for constraining transport analysis, and for studying fast ion physics such as triton burnup. Obtaining an accurate calibration involves more than performing in situ source calibrations. Efforts on TFTR illustrate the additional need for careful detector characterization, periodic renormalization, and proper cross calibration of less sensitive detectors. Multiple detector systems have been developed on TFTR to provide redundancy and a range of energy sensitivity and time resolution. Three independently calibrated systems now agree in their determination of source strength within relative uncertainties of 15%-20%. These accurate neutron measurements can be effectively used to constrain transport simulations of neutral beam injection and test the modeling and simulation assumptions.

引用

页码：3151 / 3156

页数：6

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