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Larry DeWerd

This is a preview profile on BiomedExperts - the first literature-based scientific social network. It brings the right researchers together and allows them to collaborate online. Collexis and Dell provide the BiomedExperts network of +1.5 Million pre-calculated profiles free of charge to researchers worldwide.

Research Profile (preview)

Devices

Radiometry

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Chemicals & Drugs

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United States

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Co-Publications
Name
17
Micka, John
11
Ibbott, Geoffrey
9
Williamson, Jeffrey
9
Thomadsen, Bruce
8
Nath, Ravinder
8
Huq, Saiful
8
Rivard, Mark
7
Hanson, William
6
Bohm, Tim
6
Coursey, Bert
5
Ng, Kwan-Hoong
4
Mitch, Michael
3
Podgorsak, Matthew
3
Paliwal, Bhudatt
3
Pearson, DW

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Publications

TOP 3
Holmes Shannon M; Micka John A; DeWerd Larry A
Ophthalmic applicators: an overview of calibrations following the change to SI units.
Meltsner Sheridan Griffin; DeWerd Larry A
Air kerma based dosimetry calibration for the Leksell Gamma Knife.
Usher-Moga Jacqueline; Beach Stephen M; DeWerd Larry A
Spectroscopic output of 125I and 103Pd low dose rate brachytherapy sources.

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All Publications

2009: Holmes Shannon M; Micka John A; DeWerd Larry A
Ophthalmic applicators: an overview of calibrations following the change to SI units.
Medical physics 2009;36(5):1473-7.
2009: Meltsner Sheridan Griffin; DeWerd Larry A
Air kerma based dosimetry calibration for the Leksell Gamma Knife.
Medical physics 2009;36(2):339-50.
2009: Usher-Moga Jacqueline; Beach Stephen M; DeWerd Larry A
Spectroscopic output of 125I and 103Pd low dose rate brachytherapy sources.
Medical physics 2009;36(1):270-8.
2008: Fagerstrom Jessica M; Micka John A; DeWerd Larry A
Response of an implantable MOSFET dosimeter to 192Ir HDR radiation.
Medical physics 2008;35(12):5729-37.
2008: VanDamme J J; Culberson W S; DeWerd L A; Micka J A
Air-kerma strength determination of a 169Yb high dose rate brachytherapy source.
Medical physics 2008;35(9):3935-42.
2008: Butler Wayne M; Bice William S; DeWerd Larry A; Hevezi James M; Huq M Saiful; Ibbott Geoffrey S; Palta Jatinder R; Rivard Mark J; Seuntjens Jan P; Thomadsen Bruce R
Third-party brachytherapy source calibrations and physicist responsibilities: report of the AAPM Low Energy Brachytherapy Source Calibration Working Group.
Medical physics 2008;35(9):3860-5.
2008: Nunn A A; Davis S D; Micka J A; DeWerd L A
LiF:Mg,Ti TLD response as a function of photon energy for moderately filtered x-ray spectra in the range of 20-250 kVp relative to 60Co.
Medical physics 2008;35(5):1859-69.
2008: Selwyn R; Micka J; DeWerd L; Nickles R; Thomadsen B
Technical note: the calibration of 90Y-labeled SIR-Spheres using a nondestructive spectroscopic assay.
Medical physics 2008;35(4):1278-9.
2008: Paxton Adam B; Culberson Wesley S; DeWerd Larry A; Micka John A
Primary calibration of coiled 103Pd brachytherapy sources.
Medical physics 2008;35(1):32-8.
2007: Rivard Mark J; Butler Wayne M; DeWerd Larry A; Huq M Saiful; Ibbott Geoffrey S; Meigooni Ali S; Melhus Christopher S; Mitch Michael G; Nath Ravinder; Williamson Jeffrey F;
Supplement to the 2004 update of the AAPM Task Group No. 43 Report.
Medical physics 2007;34(6):2187-205.
2007: Bohm Tim D; Micka John A; DeWerd Larry A
Monte Carlo aided design of an improved well-type ionization chamber for low energy brachytherapy sources.
Medical physics 2007;34(4):1274-85.
2007: Selwyn R G; Nickles R J; Thomadsen B R; DeWerd L A; Micka J A
A new internal pair production branching ratio of 90Y: the development of a non-destructive assay for 90Y and 90Sr.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 2007;65(3):318-27.
2007: Rodriguez Manuel; Griffin Sheridan; DeWerd Larry; Jeraj Robert
Characterization of the ADII-33 diamond detector.
Medical physics 2007;34(1):215-20.
2007: Li Zuofeng; Das Rupak K; DeWerd Larry A; Ibbott Geoffrey S; Meigooni Ali S; Pérez-Calatayud José; Rivard Mark J; Sloboda Ronald S; Williamson Jeffrey F;
Dosimetric prerequisites for routine clinical use of photon emitting brachytherapy sources with average energy higher than 50 kev.
Medical physics 2007;34(1):37-40.
2006: Rivard Mark J; Davis Stephen D; DeWerd Larry A; Rusch Thomas W; Axelrod Steve
Calculated and measured brachytherapy dosimetry parameters in water for the Xoft Axxent X-Ray Source: an electronic brachytherapy source.
Medical physics 2006;33(11):4020-32.
2006: DeWerd Larry A; Micka John A; Holmes Shannon M; Bohm Tim D
Calibration of multiple LDR brachytherapy sources.
Medical physics 2006;33(10):3804-13.
2006: Holmes Shannon M; DeWerd Larry A; Micka John A
Experimental determination of the radial dose function of 90Sr/90Y IVBT sources.
Medical physics 2006;33(9):3225-33.
2006: Minniti R; Chen-Mayer H; Seltzer S M; Huq M Saiful; Bryson L; Slowey T; Micka J A; DeWerd L A; Wells N; Hanson W F; Ibbott G S;
The US radiation dosimetry standards for 60Co therapy level beams, and the transfer to the AAPM accredited dosimetry calibration laboratories.
Medical physics 2006;33(4):1074-7.
2006: Butler Wayne M; Huq M Saiful; Li Zuofeng; Thomadsen Bruce R; DeWerd Larry A; Ibbott Geoffrey S; Mitch Michael G; Nath Ravinder; Rivard Mark J; Williamson Jeffrey F; Yue Ning J; Zaider Marco
Third party brachytherapy seed calibrations and physicist responsibilities.
Medical physics 2006;33(1):247-8.
2006: Ng Kwan-Hoong; Jamal Noriah; DeWerd Larry
Global quality control perspective for the physical and technical aspects of screen-film mammography--image quality and radiation dose.
Radiation protection dosimetry 2006;121(4):445-51.
2005: Williamson Jeffrey F; Butler Wayne; Dewerd Larry A; Huq M Saiful; Ibbott Geoffrey S; Mitch Michael G; Nath Ravinder; Rivard Mark J; Todor Dorin;
Recommendations of the American Association of Physicists in Medicine regarding the impact of implementing the 2004 task group 43 report on dose specification for 103Pd and 125I interstitial brachytherapy.
Medical physics 2005;32(5):1424-39.
2005: Douysset Guilhem; Gouriou Jean; Delaunay Frank; DeWerd Larry; Stump Kurt; Micka John;
Comparison of dosimetric standards of USA and France for HDR brachytherapy.
Physics in medicine and biology 2005;50(9):1961-78.
2005: Bohm Tim D; Griffin Sheridan L; DeLuca Paul M; DeWerd Larry A
The effect of ambient pressure on well chamber response: Monte Carlo calculated results for the HDR 1000 plus.
Medical physics 2005;32(4):1103-14.
2005: Hirata E Y; Cunningham C; Micka J A; Keller H; Kissick M W; DeWerd L A
Low dose fraction behavior of high sensitivity radiochromic film.
Medical physics 2005;32(4):1054-60.
2005: Griffin S L; DeWerd L A; Micka J A; Bohm T D
The effect of ambient pressure on well chamber response: experimental results with empirical correction factors.
Medical physics 2005;32(3):700-9.
2005: Culberson Wesley S; DeWerd Larry A; Thomadsen Bruce R; Micka John A; Bohm Tim D
Calibration of the photon component of 198Au stents.
Brachytherapy 2005;4(1):51-8.
2004: Rassiah P; Ng K H; DeWerd L A; Kunugi K
A thermoluminescent dosimetry postal dose inter-comparison of radiation therapy centres in Malaysia.
Australasian physical & engineering sciences in medicine / supported by the Australasian College of Physical Scientists in Medicine and the Australasian Association of Physical Sciences in Medicine 2004;27(1):25-9.
2004: DeWerd Larry A; Huq M Saiful; Das Indra J; Ibbott Geoffrey S; Hanson William F; Slowey Thomas W; Williamson Jeffrey F; Coursey Bert M;
Procedures for establishing and maintaining consistent air-kerma strength standards for low-energy, photon-emitting brachytherapy sources: recommendations of the Calibration Laboratory Accreditation Subcommittee of the American Association of Physicists in Medicine.
Medical physics 2004;31(3):675-81.
2004: Rivard Mark J; Coursey Bert M; DeWerd Larry A; Hanson William F; Huq M Saiful; Ibbott Geoffrey S; Mitch Michael G; Nath Ravinder; Williamson Jeffrey F
Update of AAPM Task Group No. 43 Report: A revised AAPM protocol for brachytherapy dose calculations.
Medical physics 2004;31(3):633-74.
2003: DeWerd Larry; Mackie Rock
Comment on "Comparison of ionization chambers of various volumes for IMRT absolute dose verification".
Medical physics 2003;30(8):2264.
2003: Bohm Tim D; DeLuca Paul M; DeWerd Larry A
Brachytherapy dosimetry of 125I and 103Pd sources using an updated cross section library for the MCNP Monte Carlo transport code.
Medical physics 2003;30(4):701-11.
2002: DeWerd L A; Micka J A; Laird R W; Pearson D W; O'Brien M; Lamperti P
The effect of spectra on calibration and measurement with mammographic ionization chambers.
Medical physics 2002;29(11):2649-54.
2002: Andreo Pedro; Huq M Saiful; Westermark Mathias; Song Haijun; Tilikidis Aris; DeWerd Larry; Shortt Ken
Protocols for the dosimetry of high-energy photon and electron beams: a comparison of the IAEA TRS-398 and previous international codes of practice. International Atomic Energy Agency.
Physics in medicine and biology 2002;47(17):3033-53.
2002: Stump K E; Dewerd L A; Micka J A; Anderson D R
Calibration of new high dose rate 192Ir sources.
Medical physics 2002;29(7):1483-8.
2001: Pérez-Calatayud J; Ballester F; Limami Y; DeWerd L A; Nelson K
Assessment of the linear reference air kerma rate of 192Ir wires.
Physics in medicine and biology 2001;46(8):2201-7.
2001: Ma C M; Coffey C W; DeWerd L A; Liu C; Nath R; Seltzer S M; Seuntjens J P;
AAPM protocol for 40-300 kV x-ray beam dosimetry in radiotherapy and radiobiology.
Medical physics 2001;28(6):868-93.
2001: Buckley L A; Thomadsen B R; DeWerd L A
The water-equivalence of phantom materials for 90Sr-90Y beta particles.
Medical physics 2001;28(6):1010-5.
2000: Ng K H; DeWerd L A; Schmidt R C
Mammographic image quality and exposure in South East Asia.
Australasian physical & engineering sciences in medicine / supported by the Australasian College of Physical Scientists in Medicine and the Australasian Association of Physical Sciences in Medicine 2000;23(4):135-7.
2000: Williamson J F; Coursey B M; DeWerd L A; Hanson W F; Nath R; Rivard M J; Ibbott G
Recommendations of the American Association of Physicists in Medicine on 103Pd interstitial source calibration and dosimetry: implications for dose specification and prescription.
Medical physics 2000;27(4):634-42.
1999: Williamson J F; Coursey B M; DeWerd L A; Hanson W F; Nath R; Rivard M J; Ibbott G
On the use of apparent activity (Aapp) for treatment planning of 125I and 103Pd interstitial brachytherapy sources: recommendations of the American Association of Physicists in Medicine radiation therapy committee subcommittee on low-energy brachytherapy source dosimetry.
Medical physics 1999;26(12):2529-30.
1999: Thomadsen B; DeWerd L; McNutt T; DeWerd S; Schmidt D
Assessment of the strength of individual 192Ir seeds in ribbons.
Medical physics 1999;26(11):2471-5.
1999: Aus R J; DeWerd L A; Pearson D W; Micka J A; Ng K H
Dependence of scatter on atomic number for x rays from tungsten and molybdenum anodes in the mammographic energy range.
Medical physics 1999;26(7):1306-11.
1999: Williamson J F; Coursey B M; DeWerd L A; Hanson W F; Nath R; Ibbott G
Guidance to users of Nycomed Amersham and North American Scientific, Inc., I-125 interstitial sources: dosimetry and calibration changes: recommendations of the American Association of Physicists in Medicine Radiation Therapy Committee Ad Hoc Subcommittee on Low-Energy Seed Dosimetry.
Medical physics 1999;26(4):570-3.
1999: DeWerd L A; Wagner L K
Characteristics of radiation detectors for diagnostic radiology.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine 1999;50(1):125-36.
1998: Williamson J; Coursey B M; DeWerd L A; Hanson W F; Nath R
Dosimetric prerequisites for routine clinical use of new low energy photon interstitial brachytherapy sources. Recommendations of the American Association of Physicists in Medicine Radiation Therapy Committee. Ad Hoc Subcommittee of the Radiation Therapy Committee.
Medical physics 1998;25(12):2269-70.
1997: Ng K H; Aus R J; DeWerd L A; Vetter J R
Entrance skin exposure and mean glandular dose: effect of scatter and field gradient at mammography.
Radiology 1997;205(2):395-8.
1997: Coletti J G; Pearson D W; DeWerd L A; O'Brien C M; Lamperti P J
Comparison of exposure standards in the mammography x-ray region.
Medical physics 1997;24(8):1263-7.
1996: Gentry J R; DeWerd L A
TLD measurements of in vivo mammographic exposures and the calculated mean glandular dose across the United States.
Medical physics 1996;23(6):899-903.
1995: DeWerd L A; Jursinic P; Kitchen R; Thomadsen B R
Quality assurance tool for high dose rate brachytherapy.
Medical physics 1995;22(4):435-40.
1995: Podgorsak M B; DeWerd L A; Paliwal B R; Ho A K; Sibata C H
Accuracy of the point source approximation to high dose-rate Ir-192 sources.
Medical dosimetry : official journal of the American Association of Medical Dosimetrists 1995;20(3):177-81.
1994: Reft C S; Kuchnir F T; DeWerd L A; Micka J; Attix F H
A comparison of methods for calibrating parallel-plate chambers/.
Medical physics 1994;21(12):1953-7.
1993: Podgorsak M B; DeWerd L A; Paliwal B R
The half-life of high dose rate Ir-192 sources.
Medical physics 1993;20(4):1257-9.
1993: Fairbanks E J; DeWerd L A
Thermoluminescent characteristics of LiF:Mg,Ti from three manufacturers.
Medical physics 1993;20(3):729-31.
1992: Podgorsak M B; DeWerd L A; Thomadsen B R; Paliwal B R
Thermal and scatter effects on the radiation sensitivity of well chambers used for high dose rate Ir-192 calibrations.
Medical physics 1992;19(5):1311-4.
1992: Goetsch S J; Attix F H; DeWerd L A; Thomadsen B R
A new re-entrant ionization chamber for the calibration of iridium-192 high dose rate sources.
International journal of radiation oncology, biology, physics 1992;24(1):167-70.
1990: DeWerd L A; Price J; Cameron J R; Goetsch S J
Evaluation of a commercial diode monitor for mailed quality control of therapy units.
International journal of radiation oncology, biology, physics 1990;19(4):1053-7.
1990: Dewerd L
Monitoring mammographic performance.
Administrative radiology : AR 1990;9(9):43-4, 47-8.
1989: DeWerd L A; Light M C; Liss M M; Mesina C F
Radiation therapy and clinical physics practices in the midwest (1982-1986).
Medical physics 1989;16(4):648-52.
1988: Ranallo F N; Goetsch S J; DeWerd L A; Liss M M; Borras C; White C; Barton J; Mian T; Malik S; Wolff M
Calibration and use of the Wisconsin kVp test cassette.
Medical physics 1988;15(5):768-72.

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