Thomas E. Johnson, C.H.P.
Assistant Professor

Phone: (970) 491-0563
Fax: (970) 491-0623
Email: Thomas.E.Johnson@colostate.edu
Office: 333 Molecular and Radiological Biosciences Building

 

Degrees

• Ph.D., Health Physics, School of Health Sciences, Purdue University
• M.S., Environmental Health Engineering, Northwestern University
• M.B.A., Operations Management and Finance, University of Illinois
• B.S., Industrial Technology, Southern Illinois University

Research Interests

Dr. Johnson's research in the laser research lab is focused on safety and laser injury recovery and the acute effects of ionizing radiation.

Selected Publications

Books

T. Johnson, Editor, ElectroMed 2005 Symposium Record Abstracts, Bartleby Press, Silver Springs, MD, 178 pages (May 2005)

T. Johnson , Editor, ElectroMed 2003 Symposium Record Abstracts , Veridian Co, San Antonio TX, 140 pages (May 2003)

W.P. Roach, T.E. Johnson , Ultrashort Laser Pulse Bioeffects , Milestones in Science Series, International Society for Optical Engineering Press, Bellingham , WA (ISBN 0-8194-4747-1), 678 Pages (Jan 2003)

H. Cember, T.E. Johnson , The Health Physics Solutions Manual , P.S. & E. Press, Silver Spring, MD (ISBN 0-9625963-6-1), 442 pages (March 1999)

Articles

Nicole A. McPherson, Thomas E. Eurell, Thomas E. Johnson, Comparison of 1540 nm laser induced injuries in ex-vivo and in-vitro rabbit corneal models. Journal of Biomedical Optics. November 2007; Volume 12, No. 6.

Randolph D. Glickman, Thomas E. Johnson, Gary D. Noojin, David J. Stolarski, Michael L. Denton, Neeru Kumar, and Benjamin A. Rockwell; Laser Bioeffects Associated With Ultrafast Lasers: Role Of Multiphoton Absorption, Journal of Laser Applications, May 2008; Vol 20, No. 2.

TE Johnson, MJ Roy; Cutaneous sensation threshold for 3.8 um radiation from a short duration pulsed laser on the calves of human subjects: A pilot study. Journal of Laser Applications, Vol. 18, No. 4, November 2006.

C.A. Ege, N.C. Parra, T.E. Johnson; Noninfectious Complications of Vascular Access Ports (VAP) use in the Yucatan Mini-Pig (Sus scrofa domestica), JAALAS, November 2006 Vol. 45, No. 6, p. 54-61

GL Langham, RF Hoyt, TE Johnson; Comparison of Particulate Matter in Laboratory Animal Rooms Housing Mice in Microisolators, JAALAS, November 2006, Vol. 45, No. 6, pp.22-26.

Clark, KR, Neal, TA, Johnson, TE. Creation of an Innovative Laser Incident Reporting Form for Improved Trend Analysis using the Delphi Technique. Military Medicine, Vol. 171, No. 9, September, 2006.

Bostick AC, Stoffregen DE, Johnson TE,  2006.  " Response of Lightly and Highly Pigmented Porcine Skin (Sus scrofa domestica) to Single 3.8 micron Laser Radiation Pulses", J Am Assoc Lab Anim Sci. May;45(3):33-7.

John J. Tomon, Thomas E. Johnson, Kristin N. Swenson, and David A. Schauer, " Applicability of ACR breast dosimetry methodology to a digital mammography system" Medical Physics, March 2006, Volume 33, Issue 3,pp. 799-807.

James G. Fyffe, Thomas A. Neal, William P. Butler, Thomas E. Johnson, " The Ex Vivo Pig Eye as a Replacement Model for Laser Safety Testing" Comparative Medicine, Volume 55, Issue 6 p.503-9 December 2005.

Thomas E. Johnson, Dawn C. Fitzhugh, Nicole McPherson, Golda C. H. Winston, Tridaugh D. Winston, and Donald Q. Randolph; "Evaluating the potential for internal injuries from a pulsed 3.8-micron laser" Proceedings of SPIE, Volume 5686, pp. 654-659; January 2005.

Anthony C. Bostick, Thomas E. Johnson, Donald Q. Randolph, and Golda C. H. Winston, "Response of pigmented porcine skin (Sus scrofa domestica) to single 3.8-micron laser radiation pulses" Proceedings of SPIE, Volume 5686, pp. 668-673  January 2005

James G. Fyffe, Donald Q. Randolph, Golda C. H. Winston, and Thomas E. Johnson "Corneal injury to ex vivo eyes exposed to a 3.8-micron laser" Proceedings of SPIE Volume 5686, pp. 674-683 January 2005

Eurell, Thomas E., Johnson, Thomas E., Roach, William P., " Proteomic analyses of the acute tissue response for explant rabbit corneas and engineered corneal tissue models following in vitro exposure to 1540-nm laser light". Proceedings of SPIE Vol. 5319, p. 341-343, July 2004

G.C. Winston, D.Q. Randolph, T.E. Johnson , "Evaluating Acute Physiological Responses of Porcine Epidermis exposed to a Pulsed 3.8 Micron Laser." Proceedings of SPIE, Jan. 2004

K.R. Clark, T.E. Johnson , T.A. Neal, "Delphi Technique Used In Laser Incident Surveillance" Proceedings of SPIE, Jan. 2004

P.C.M. Williams, G.C.H. Winston, D.Q. Randolph, T.A. Neal, T.E. Eurell, T.E. Johnson , "Comparison of experimental models for predicting laser tissue interaction from 3.8 micron lasers" Proceedings of SPIE,
Jan. 2004

R.D. Glickman, T.E. Johnson , "Multiphoton absorption is probably not the primary threshold damage mechanism for femtosecond laser pulse exposures in the retinal pigment epithelium" Proceedings of SPIE, Jan. 2004

L.L. Saunders, T.E. Johnson , T.A. Neal, "A Review of Infrared Laser Energy Absorption and Subsequent Healing in the Cornea" Proceedings of SPIE, Jan. 2004

T.E. Johnson , N. Keeler, J.E. Dennis, C.L. Figueroa, H.A. Press, R.J. Rockwell Jr., B.E. Stuck, W.P. Roach, A.L. Wartick, "Investigation of Laser Injuries" Proceedings of SPIE, Vol. 4961, January 2003.

T.E. Johnson , G.C.H. Winston, W.L. Greene, "A Comparison of Yucatan mini-pig and Yorkshire pig skin response to 1318 nm laser pulses," Proceedings of SPIE, Vol. 4961, January 2003.

T.E. Johnson , N. Keeler, A. Wartick, "Laser Eye Injuries Among US Military Personnel," Proceedings of SPIE, Vol. 4953, January 2003.

T.E. Eurell, T.E. Johnson , W.P. Roach, "Histomorphometric and proteomic analysis of the acute corneal tissue response following in vitro exposure to 1540 nm laser light," Proceedings of SPIE, Vol. 4953, January 2003.

T.E. Johnson , G.C.H. Winston, M. Burton, W.L. Greene, "Porcine Dermal Lesions Produced by 1.3 micron Laser Pulses," Proceedings of SPIE, Vol. 4961, January 2003.

G.C.H. Winston, W.L. Greene, T.E. Johnson, "Utilizing Yucatan Mini-pigs for 1318 nm Skin Exposure ED50 Determination," Proceedings of SPIE, Vol. 4961, January 2003.

B. Ketzenberger, T.E. Johnson , Y.A. Van Gessell, S.P. Wild, W.P. Roach, "A Study of Corneal Lesions in the Dutch Belted Rabbit (Oryctolagus cuniculus) Induced by 1318 nm Laser Radiation Pulses." Comparative Medicine, Vol. 52, No. 6, p. 513-517, December, 2002

T.E. Johnson , W.P. Roach, "Solution to question 9 from the American Board of Health Physics Exam," Health Physics Society Newsletter, November 2002

T.F. Clarke, T.E. Johnson , B. Ketzenberger, W.P. Roach, "Corneal Injury Threshold And Public Health Implications Of The 1540 nm Laser (Infrared Laser Eye Injury)" Aviation, Space, and Environmental Medicine, Vol. 73, No. 8, p. 787-790, August 2002.

Eurell, T.E., Johnson, T.E. , and Roach, W.P. "Morphometric Comparison of the Acute Rabbit Corneal Response to 1540 nm Laser Light Following In Vitro Exposure to Millisecond or Nanosecond Pulse Widths" Proceedings of SPIE, Vol. 4617, January 2002.

Johnson, T.E. , Dunn, J.C., Roach, W.P., "Survey of Laser Injury" Proceedings of SPIE, Vol. 4617, p. 125-133, January 2002

W.P. Roach, B.K. Ketzenberger, Thomas E. Johnson, "Corneal Injury from 1318-nm Single Laser Pulses" Proceedings of SPIE, Vol. 4617, p. 30-39, January 2002

T. Johnson , Editor, ElectroMed 2001 Symposium Record Abstracts, Eastern Virginia Medical School , VA , 136 pages (May 2001)

Eurell, T.E., Johnson, T.E. , and Roach, W.P. "A morphometric comparison of the acute rabbit and pig corneal response to 1540 nm laser light following ex vivo exposure". Proceeding of SPIE Vol. 4246, p. 180-184, 2001.

W.P. Roach, Thomas E. Johnson , "Porcine Dermal Lesions Produced by 1540 nm Laser Radiation Pulses," SPIE, Vol. 4257, 363-368, January 2001

Thomas E. Johnson , B.K. Ketzenberger, K.B. Pletcher, W.P. Roach, "Skin Exposures from 1318 nm Laser Pulses," SPIE, VOL. 4257, 355-362, January 2001

W.P. Roach, Thomas E. Eurell, Thomas E. Johnson, "A morphometric comparison of the acute rabbit and pig corneal response to 1540 nm laser light following ex vivo exposure," SPIE, Vol. 4246, p. 89-96, January 2001

Bryan Ketzenberger, Thomas E. Johnson , Stephen P. Wild, Kenneth B. Pletcher, and W.P. Roach, "ED50 Determination and Histological Characterization of Epithelial Layers in Animal Models: Lesions Produced by 1318 nm Laser Radiation Pulses," SPIE, Vol. 4244, p. 544-551, January 2001

P.J. Rico, W.P. Roach, M.A. Mitchell, T.E. Johnson, " ED50 Determination and Histological Characterization of Porcine (Sus scrofa domestica) Dermal Lesions Produced by 1540 nm Laser Radiation Pulses," Comparative Medicine, Vol. 50, No. 5, p. 633-638, December, 2000.

T.A. Eggleston, W.P. Roach, M. Mitchell, K. Smith, D. Oler, T.E. Johnson "Comparison of In Vivo Skin Models for Near Infrared Laser Exposure," Comparative Medicine, Vol. 50, No. 4, p. 391-397, August, 2000.

D.J. Fletcher, T.E. Johnson , M.A. Mitchell, T.E. Eurell, P.J. Rico, W.P. Roach, "Corneal Equivalents: a Replacement Model for In-vivo 1540 nm Laser Exposure Studies" Proceedings of SPIE Vol. 3907, p. 468-475, 2000.

P.J. Rico, M.A. Mitchell, T.E. Johnson , W.P. Roach, "ED50 determination and histologic characterization of porcine dermal lesions produced by 1540 nm laser radiation pulses" Proceedings of SPIE, Vol. 3907, p. 476-483, 2000.

T.A. Eggleston, W.P. Roach, M. Mitchell, K. Smith, D. Oler, T.E. Johnson "Comparison of In Vivo Skin Models for Near Infrared Laser Exposure," Comparative Medicine, Vol. 50, No. 4, p. 391-397, August, 2000.

T.E. Johnson , W.P. Roach, "Hazards Associated with 1540 nm Lasers" Health Physics Society Annual Meeting, June, 2000

T.E. Johnson , "Misconceptions and Portable Radiation Detection Instrument Training" in Instrumentation, Measurements and Electronic Dosimetry, proceedings of the Health Physics Society Midyear Meeting, Medical Physics Publishing, WI, 2000.

T.E. Johnson , M.A. Mitchell, P.J. Rico, D.J. Fletcher, T.E. Eurell, W.P. Roach, "Corneal and Skin Laser Exposures from 1540 nm Laser Pulses," Proceedings of SPIE, Vol. 3914, p. 222-229, January 2000.

T.E. Johnson , T.A. Eggleston, D. Fletcher, K. Lopez, P.J. Rico, M.A. Mitchell, W.P. Roach, "Determination of Single-Pulse Exposure Threshold (ED50) for 1400-2000 nm Lasers," Proceedings of SPIE Vol. 3601-08, 1999.

T.A. Eggleston, M. Mitchell, T.E. Johnson, W.P. Roach, "Comparison of In Vivo Skin Models for Near Infrared Laser Exposure," Proceedings of SPIE Vol. 3590, p. 356-360, 1999.

W.P. Roach, T.E. Johnson , B.A. Rockwell, "Maximum Permissible Exposure Limits for Ultrashort Laser Pulses," Health Physics, Vol. 76, No. 4, p. 349-354 (April 1999)

Radiation Safety Training, R.H. Johnson, W.F. Holcomb, T.E. Johnson, chapter in Management and Administration of Radiation Safety Programs, Charles Roessler, Editor, ISBN 0-944838-01-4, Medical Physics Publishing, Madison, WI. 1998.

T.E. Johnson, "Operational Decision Levels for Skin Contamination," Radiation Protection Management. 13:58-64; (1996) Publications (Reviewed by Editor)