X-RAYS AND GAMMA-RAYS COMPUTERIZED MINITOMOGRAPH SCANNER FOR SOIL SCIENCE

被引：43

作者：

CRUVINEL, PE ^{[1
]}

CESAREO, R ^{[1
]}

CRESTANA, S ^{[1
]}

MASCARENHAS, S ^{[1
]}

机构：

[1] UNIV ROME,CTR INGN BIOMED,I-00186 ROME,ITALY

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1990年 / 39卷 / 05期

关键词：

D O I：

10.1109/19.58619

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A computerized tomograph scanner system using X-and γ-rays has been developed for applications in soil science. Previous results were obtained using a miniature X-ray tomograph scanner designed for biomedical analysis [1]. As a new methodology of instrumentation and in soil research [2], this apparatus has proven to be useful for measuring volumetric water content θ to an accuracy of ±3% and soil bulk density ρ ± 2% (in grams/centimeters3). The system features translation and rotation scanning modes, a 200-mm effective field of view, signal processing by pulse counting and 1.0-mm spatial resolution. The performance of the system has been demonstrated by experimentally measuring water content and the bulk density of soil samples. © 1990 IEEE

引用

页码：745 / 750

页数：6

共 15 条

[1]

Bracewell RN., 1986, FOURIER TRANSFORM IT

[2]

CESAREO R, 1982, X RAY FLUORESCENCE X, P239

[3]

CESAREO R, 1982, MAR INT C APPL PHYS

[4]

CORMACK AM, 1980, MED PHYS, V7