BACKSCATTERING AND TRANSMISSION THROUGH A HIGH-Z INTERFACE AS A MEASURE OF ELECTRON-BEAM ENERGY

被引：7

作者：

DAS, IJ ^{[1
]}

BUSHE, HS ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS, MED CTR, DEPT RADIAT ONCOL, WORCESTER, MA 01655 USA

来源：

MEDICAL PHYSICS | 1994年 / 21卷 / 02期

关键词：

INTERFACE DOSIMETRY; ELECTRON BEAM; BACKSCATTER; TRANSMISSION; BEAM ENERGY; QUALITY ASSURANCE;

D O I：

10.1118/1.597375

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The ratio of electron beam transmission (Tr) and backscattering (Bs) is used as a measure of beam energy. With a proper thickness of high Z medium placed at the surface of a low Z homogeneous medium, it is observed that the function log(Tr/Bs) is a linear function of electron energy. This method is applied to electrons produced with scattering foil and pulse-Swept (scanned) beams for the nominal energies ranging from 6 to 20 MeV. This technique provides a unique alternative method which is easy, simple, and accurate within +/-3% for estimation of electron beam energy.

引用

页码：315 / 319

页数：5

共 24 条

[11] FIELD SHAPING IN ELECTRON-BEAM THERAPY [J].

KHAN, FM ;

MOORE, VC ;

LEVITT, SH .

BRITISH JOURNAL OF RADIOLOGY, 1976, 49 (586) :883-886

[12] CLINICAL ELECTRON-BEAM DOSIMETRY - REPORT OF AAPM RADIATION-THERAPY COMMITTEE TASK GROUP NO-25 [J].

KHAN, FM ;

DOPPKE, KP ;

HOGSTROM, KR ;

KUTCHER, GJ ;

NATH, R ;

PRASAD, SC ;

PURDY, JA ;

ROZENFELD, M ;

WERNER, BL .

MEDICAL PHYSICS, 1991, 18 (01) :73-109

[13] BACKSCATTERING IN ELECTRON-BEAM THERAPY FOR ENERGIES BETWEEN 3 AND 35 MEV [J].

KLEVENHAGEN, SC ;

LAMBERT, GD ;

ARBABI, A .

PHYSICS IN MEDICINE AND BIOLOGY, 1982, 27 (03) :363-373

[14] PARAMETRIZATION OF DEPTH DOSE FOR ELECTRON-BEAMS [J].

MEIGOONI, AS ;

DAS, IJ .

PHYSICS IN MEDICINE AND BIOLOGY, 1987, 32 (06) :761-768

[15] DEMONSTRATION OF RELATIVELY NEW ELECTRON DOSIMETRY MEASUREMENT TECHNIQUES ON THE MEVATRON-80 [J].

MEYER, JA ;

PALTA, JR ;

HOGSTROM, KR .

MEDICAL PHYSICS, 1984, 11 (05) :670-677

[16] QUALITY ASSURANCE OF ELECTRON-BEAM ENERGY USING AN ALUMINUM WEDGE [J].

MOYER, RF .

RADIOLOGY, 1981, 140 (01) :237-239

[17] A RAPID METHOD FOR ELECTRON-BEAM ENERGY CHECK [J].

PISCIOTTA, VJ ;

WU, XD ;

FIEDLER, JA ;

SERAGO, CF ;

CALISHWATZICH, ML ;

SCHWADE, JG ;

HOUDEK, PV .

MEDICAL PHYSICS, 1992, 19 (06) :1451-1453

[18] A DEVICE FOR CHECKING ELECTRON ENERGIES [J].

PROCTER, NM .

PHYSICS IN MEDICINE AND BIOLOGY, 1983, 28 (06) :739-743

[19] TESTS OF AN ELECTRON MONITOR FOR ROUTINE QUALITY-CONTROL MEASUREMENTS OF ELECTRON ENERGIES [J].

RAMSAY, EB ;

REINSTEIN, LE ;

MEEK, AG .

MEDICAL PHYSICS, 1991, 18 (06) :1247-1250

[20] ENERGY CONSTANCY CHECKING FOR ELECTRON-BEAMS USING A WEDGE-SHAPED SOLID PHANTOM COMBINED WITH A BEAM PROFILE SCANNER [J].

ROSENOW, UF ;

ISLAM, MK ;

GABALLA, H ;

RASHID, H .

MEDICAL PHYSICS, 1991, 18 (01) :19-25

← 1 2 3 →