Gerhard Randers-Pehrson has been the lead designer and integrator of
the systems that comprise the RARAF Microbeam facilities. His intent is
to provide state of the art irradiation systems that are flexible enough
to meet the changing experimental protocols that we and the users of the
facility devise.
Randers-Pehrson’s second broad area of interest is the application of
techniques developed here to the problems of homeland security.
Specifically, upgrading the imaging systems used for the microbeam to
vastly upgrade the scoring speed of micronuclei for biodosimetry in the
event of a “dirty bomb” or nuclear event. He is also developing a
baggage screening system based on accelerator techniques for which he
holds a patent with Dr. Brenner.
Single copies of the articles can be downloaded and printed for the
reader's personal research and study for informational purposes only.
Ross G.J., Bigelow A.W., Randers-Pehrson G., Peng C.C. and Brenner D.J.
Phase-based cell imaging techniques for microbeam irradiations.
Nucl. Instrum. Methods Phys. Res. B 241:387-391 (2005).
[PDF]
Garty G., Ross G.J., Bigelow A., Randers-Pehrson G. and Brenner D.J. A
microbeam irradiator without an accelerator. Nucl. Instrum. Methods
Phys. Res. B 241:392-396 (2005). [PDF]
Bigelow A.W., Randers-Pehrson G., Kelly R.P. and Brenner D.J. Laser
ion source for Columbia University's microbeam. Nucl. Instrum.
Methods Phys. Res. B 241: 874-879 (2005). [PDF]
Garty G., Randers-Pehrson G. and Brenner D.J. Development of a
secondary-electron ion-microscope for microbeam diagnostics. Nucl.
Instrum. Methods Phys. Res. B 231:60-64 (2005) [PDF]
Bigelow A.W., Ross G.J., Randers-Pehrson G. and Brenner D.J. The
Columbia University Microbeam II endstation for cell imaging and
irradiation. Nucl. Instrum. Methods Phys. Res. B 231:202-206
(2005) [PDF]
Ross G.J., Garty G., Randers-Pehrson G. and Brenner D.J. A
single-particle/single-cell microbeam based on an isotopic alpha
source. Nucl. Instrum. Methods Phys. Res. B 231:207-211
(2005) [PDF]
Belyakov O.V., Mitchell S.A., Parikh D., Randers-Pehrson G., Marino
S.A., Amundson S.A., Geard C.R. and Brenner D.J. Biological effects in
unirradiated human tissue induced by radiation damage up to 1 mm away.
PNAS 102:14203-14208 (2005) [abstract] [PDF]
Ponnaiya B., Jenkins-Baker G., Brenner D.J., Hall E.J., Randers-Pehrson
G. and Geard C.R. Biological responses in known bystander cells
relative to known microbeam-irradiated cells. Radiat. Res.
162:426-432 (2004). [abstract] [PDF]
Mitchell S.A., Randers-Pehrson G., Brenner D.J. and Hall E.J. The
Bystander Response in C3H 10T(1/2) Cells: The Influence of
Cell-to-Cell Contact. Radiat. Res. 161:397-401 (2004).
[abstract] [PDF]
Zhou H., Randers-Pehrson G. Waldren C.A. and Hei T.K.
Radiation-induced bystander effect and adaptive response in mammalian
cells. Adv. in Space Res. 34:1368-1372 (2004). [abstract]
Zhou H., Randers-Pehrson G., Geard C.R., Brenner D.J., Hall E.J. and
Hei T.K. Interaction between radiation-induced adaptive response and
bystander mutagenesis in mammalian cells. Radiat. Res. 160:512-516
(2003). [abstract] [PDF]
Randers-Pehrson G. Microbeams, microdosimetry and specific dose.
Radiat. Prot. Dosimetry 99:471-472 (2002) [abstract]
Brenner D.J., Sawant S.G., Hande M.P., Miller R.C., Elliston C.D., Fu
Z., Randers-Pehrson G. and Marino SA. Routine screening mammography:
how important is the radiation-risk side of the benefit-risk equation?
Int. J. Radiat. Biol. 78:1065-1067 (2002) [abstract]
[PDF]
Randers-Pehrson G., Geard C.R., Johnson G., Elliston C.D. and Brenner
D.J. The Columbia University single-ion microbeam. Radiat. Res.
156:210-214 (2001). [abstract] [PDF]
Sawant S.G., Randers-Pehrson G., Geard C.R., Brenner D.J. and Hall E.J.
The bystander effect in radiation oncogenesis I. Transformation in C3H
10T1/2 cells in vitro can be initiated in the unirradiated neighbors
of irradiated cells. Radiat. Res. 155:397-401 (2001).
[abstract] [PDF]
Dymnikov A.D., Brenner D.J., Johnson G. and Randers-Pehrson G.
Theoretical study of short electrostatic lens for the Columbia ion
microprobe. Rev. Sci. Instr. 71:1646-1650 (2000).
[PDF]
Miller R.C., Randers-Pehrson G., Geard C.R., Hall E.J., and Brenner
D.J. The oncogenic transforming potential of the passage of single
alpha particles through mammalian cell nuclei. PNAS 96:18-22
(1999). [abstract] [PDF]
Randers-Pehrson G. and Brenner D.J. A practical target system for
accelerator-based BNCT which may effectively double the dose rate.
Med. Phys. 25:894-6 (1998). [abstract] [PDF]
Brenner D.J., Hall E.J., Randers-Pehrson G., Huang Y., Johnson G.W.,
Miller R.W., Wu B., Vazquez M.E., Medvedovsky C. and Worgul B.V.
Quantitative comparisons of continuous and pulsed low dose-rate
regimens in a model late-effect system. Int. J. Radiat. Oncol.
Biol. Phys. 34:905-910 (1996). [abstract] [PDF]
This page was last updated October 30, 2006.