Polarity and ion recombination correction factors for ionization chambers employed in electron beam dosimetry

被引：28

作者：

Nisbet, A ^{[1
]}

Thwaites, DI ^{[1
]}

机构：

[1] Univ Edinburgh, Western Gen Hosp, Dept Med Phys & Med Engn, Edinburgh EH4 2XU, Midlothian, Scotland

来源：

PHYSICS IN MEDICINE AND BIOLOGY | 1998年 / 43卷 / 02期

关键词：

D O I：

10.1088/0031-9155/43/2/016

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Polarity and ion recombination correction factors for the NACP (type-02) design parallel-plate ionization chamber employed in a recent UK national electron beam dosimetry intercomparison are derived over the full range of energies and measurement conditions encountered. In addition, these effects have been studied for a further four NACP chambers, a Markus parallel-plate chamber, a Roos parallel-plate chamber and a NE2571 graphite walled cylindrical ionization chamber.

引用

页码：435 / 443

页数：9

共 17 条

[1] POLARITY EFFECT FOR VARIOUS IONIZATION CHAMBERS WITH MULTIPLE IRRADIATION CONDITIONS IN ELECTRON-BEAMS [J].

AGET, H ;

ROSENWALD, JC .

MEDICAL PHYSICS, 1991, 18 (01) :67-72

[2] USE OF A VICTOREEN 500 ELECTROMETER TO DETERMINE IONIZATION-CHAMBER COLLECTION EFFICIENCIES [J].

ALMOND, PR .

MEDICAL PHYSICS, 1981, 8 (06) :901-904

[3] THE RECOMBINATION CORRECTION FOR AN IONIZATION-CHAMBER EXPOSED TO PULSED RADIATION IN A SWEPT BEAM TECHNIQUE .1. THEORY [J].

BOAG, JW .

PHYSICS IN MEDICINE AND BIOLOGY, 1982, 27 (02) :201-211

[4] IONIZATION MEASUREMENTS AT VERY HIGH INTENSITIES .1. PULSED RADIATION BEAMS [J].

BOAG, JW .

BRITISH JOURNAL OF RADIOLOGY, 1950, 23 (274) :601-611

[5] CURRENT COLLECTION AND IONIC RECOMBINATION IN SMALL CYLINDRICAL IONIZATION CHAMBERS EXPOSED TO PULSED RADIATION [J].

BOAG, JW ;

CURRANT, J .

BRITISH JOURNAL OF RADIOLOGY, 1980, 53 (629) :471-478

[6]

BOAG JW, 1966, RAD DOSIMETRY, V2, P39

[7]

BURNS DT, 1991, 27 NPL RSAEXT

[8]

BURNS DT, 1994, IPSM RADIOTHERAP JUL

[9]

CONERE TJ, 1982, MED PHYS, V11, P465

[10] THE POLARITY EFFECT FOR COMMERCIALLY AVAILABLE PLANE-PARALLEL IONIZATION CHAMBERS [J].

GERBI, BJ ;

KHAN, FM .

MEDICAL PHYSICS, 1987, 14 (02) :210-215

← 1 2 →