Variation in output factor caused by secondary blocking for 7–16 MeV electron beams

Myung C. Choi; James A. Purdy; Bruce Gerbi; Fred G. Abrath; Glenn P. Glasgow

doi:10.1118/1.594545

Variation in output factor caused by secondary blocking for 7–16 MeV electron beams

Myung C. Choi, James A. Purdy, Bruce Gerbi, Fred G. Abrath, Glenn P. Glasgow

Research output: Contribution to journal › Letter › peer-review

18 Scopus citations

Abstract

The effect of secondary blocking on the output factor for 7–16 MeV electron beams is investigated for the two most widely used methods of field shaping, i.e.,(a) shield on surface, and (b) shield at end of cone with subsequent air gap. For these two methods differences in output on the order of 10% are observed. These effects are explained in terms of the blocking geometry and its influence on scattered radiation.

Original language	English (US)
Pages (from-to)	137-139
Number of pages	3
Journal	Medical Physics
Volume	6
Issue number	2
DOIs	https://doi.org/10.1118/1.594545
State	Published - Mar 1979
Externally published	Yes

Keywords

BETATRONS
COLLIMATORS
ELECTRON BEAMS
ELECTRON DOSIMETRY
LINEAR ACCELERATORS
MEV RANGE 01−10
MEV RANGE 10−100
RADIOTHERAPY
SCATTERING
SHIELDING MATERIALS
SPATIAL DOSE DISTRIBUTION

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@article{a0e716acb79f4a879dbfe78b417726ba,

title = "Variation in output factor caused by secondary blocking for 7–16 MeV electron beams",

abstract = "The effect of secondary blocking on the output factor for 7–16 MeV electron beams is investigated for the two most widely used methods of field shaping, i.e.,(a) shield on surface, and (b) shield at end of cone with subsequent air gap. For these two methods differences in output on the order of 10% are observed. These effects are explained in terms of the blocking geometry and its influence on scattered radiation.",

keywords = "BETATRONS, COLLIMATORS, ELECTRON BEAMS, ELECTRON DOSIMETRY, LINEAR ACCELERATORS, MEV RANGE 01−10, MEV RANGE 10−100, RADIOTHERAPY, SCATTERING, SHIELDING MATERIALS, SPATIAL DOSE DISTRIBUTION",

author = "Choi, {Myung C.} and Purdy, {James A.} and Bruce Gerbi and Abrath, {Fred G.} and Glasgow, {Glenn P.}",

year = "1979",

month = mar,

doi = "10.1118/1.594545",

language = "English (US)",

volume = "6",

pages = "137--139",

journal = "Medical Physics",

issn = "0094-2405",

publisher = "AAPM - American Association of Physicists in Medicine",

number = "2",

}

TY - JOUR

T1 - Variation in output factor caused by secondary blocking for 7–16 MeV electron beams

AU - Choi, Myung C.

AU - Purdy, James A.

AU - Gerbi, Bruce

AU - Abrath, Fred G.

AU - Glasgow, Glenn P.

PY - 1979/3

Y1 - 1979/3

N2 - The effect of secondary blocking on the output factor for 7–16 MeV electron beams is investigated for the two most widely used methods of field shaping, i.e.,(a) shield on surface, and (b) shield at end of cone with subsequent air gap. For these two methods differences in output on the order of 10% are observed. These effects are explained in terms of the blocking geometry and its influence on scattered radiation.

AB - The effect of secondary blocking on the output factor for 7–16 MeV electron beams is investigated for the two most widely used methods of field shaping, i.e.,(a) shield on surface, and (b) shield at end of cone with subsequent air gap. For these two methods differences in output on the order of 10% are observed. These effects are explained in terms of the blocking geometry and its influence on scattered radiation.

KW - BETATRONS

KW - COLLIMATORS

KW - ELECTRON BEAMS

KW - ELECTRON DOSIMETRY

KW - LINEAR ACCELERATORS

KW - MEV RANGE 01−10

KW - MEV RANGE 10−100

KW - RADIOTHERAPY

KW - SCATTERING

KW - SHIELDING MATERIALS

KW - SPATIAL DOSE DISTRIBUTION

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UR - http://www.scopus.com/inward/citedby.url?scp=0018762423&partnerID=8YFLogxK

U2 - 10.1118/1.594545

DO - 10.1118/1.594545

M3 - Letter

C2 - 111017

AN - SCOPUS:0018762423

SN - 0094-2405

VL - 6

SP - 137

EP - 139

JO - Medical Physics

JF - Medical Physics

IS - 2

ER -

Variation in output factor caused by secondary blocking for 7–16 MeV electron beams

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