Angular variation of scattering volume and its implications for Compton scattering tomography

被引：12

作者：

Balogun, FA ^{[1
]}

机构：

[1] Obafemi Awolowo Univ, Ctr Energy Res & Dev, Ile Ife, Nigeria

来源：

APPLIED RADIATION AND ISOTOPES | 1999年 / 50卷 / 02期

关键词：

Compton scattering; volume; field of view; tomography;

D O I：

10.1016/S0969-8043(98)00015-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

If quantitative and qualitative precision is to be achieved in X-ly-rays Compton scattering densitometry and tomography, the volume of interaction within which a useful signal is collected must be well defined and accurately estimated. This work presents a numerical study of the variation of scattering angles and collimator sizes. The effect of choosing back-scattering angles for measurement in both the densitometry and tomographic modes of this technique is studied. A symmetry is observed between the volume at forward and back scattering angles. A symmetry exists, however, within the scattering angle range 90 +/- 30 degrees. It is proposed that the best volume/spatial resolution in Compton scattering densitometry/tomography is obtainable within the above mentioned scattering angle range. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：317 / 323

页数：7

共 11 条

[1] Energy-spectral compton scatter imaging .2. Experiments [J].

Arendtsz, NV ;

Hussein, EMA .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1995, 42 (06) :2166-2172

[2] Energy-spectral Compton scatter imaging .1. Theory and mathematics [J].

Arendtsz, NV ;

Hussein, EMA .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1995, 42 (06) :2155-2165

[3] COMPTON-SCATTERING TOMOGRAPHY IN THE STUDY OF A DENSE INCLUSION IN A LIGHTER MATRIX [J].

BALOGUN, FA ;

SPYROU, NM .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1993, 83 (04) :533-538

[4] COMPTON SCATTER IMAGING OF TRANSVERSE SECTIONS - AN OVERALL APPRAISAL AND EVALUATION FOR RADIOTHERAPY PLANNING [J].

BATTISTA, JJ ;

BRONSKILL, MJ .

PHYSICS IN MEDICINE AND BIOLOGY, 1981, 26 (01) :81-99

[5] The photodegradation of some naturally occurring polymers [J].

Davidson, RS .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, 1996, 33 (01) :3-25

[6] Low angle X-ray scatter for explosives detection: A geometry optimization [J].

Luggar, RD ;

Horrocks, JA ;

Speller, RD ;

Lacey, RJ .

APPLIED RADIATION AND ISOTOPES, 1997, 48 (02) :215-224

[7] Monitoring and correction of multiple scatter during clinical Compton scatter densitometry measurements [J].

Mooney, MJ ;

Naga, SSD ;

Speller, RD ;

Koligliatis, T .

PHYSICS IN MEDICINE AND BIOLOGY, 1996, 41 (11) :2399-2410

[8] COMPTON-SCATTERING TOMOGRAPHY [J].

NORTON, SJ .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (04) :2007-2015

[9]

PRETTYMAN TH, 1993, APPOL RAD ISOT, V41, P327

[10]

Shrakawa Y., 1996, Memoirs of the Faculty of Engineering, Fukui University, V44, P265

← 1 2 →