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{{Infobox astronaut
| name             = Christopher L. Williams
| image            = Christopher Williams white background.jpg
| caption          = 
| type             = [[NASA]] Astronaut
| birth_name       = 
| birth_date       = 
| birth_place      = [[New York City]], USA
| status           = Active
| alma_mater       = {{unbulleted list|[[Stanford University]]|[[Massachusetts Institute of Technology|Harvard Medical School]]}}
| occupation       = {{hlist|Medical Physicist}}
| awards           = 
| selection        = [[NASA Astronaut Group 23|NASA Group 23]]
| space_time       = 
| evas             = 
| eva_time         = 
| missions         = 
| insignia         = 
| retirement       = 
| website          = 
}}

'''Christopher Williams''', a [[NASA]] astronaut candidate and medical physicist. Williams was selected to join the [[NASA Astronaut Group 23|2021 Astronaut Candidate Class]].

==Background==

Christopher L. Williams grew up in Potomac, Maryland. He graduated
from Stanford University in 2005 with a bachelor’s degree in physics
and a doctorate in physics from MIT in 2012, where his research was in
astrophysics. Williams is a board-certified medical physicist,
completing his residency training at Harvard Medical School before
joining the faculty as a clinical physicist and researcher. He most
recently worked as a medical physicist in the Radiation Oncology
Department at the Brigham and Women's Hospital and Dana-Farber Cancer
Institute in Boston. He was the lead physicist for the Institute’s
MRI-guided adaptive radiation therapy program. His research focused on
developing image guidance techniques for cancer treatments.<ref
name="nasa_20211206_bio"/>

On December 6, 2021, Williams was selected to join NASA's 23rd astronaut
candidate class.<ref name="nyt_20211206_astronauts"/>

==References==

{{reflist|refs=

<ref name="nasa_20211206_bio">{{cite web
 |url          = https://www.nasa.gov/astronauts/biographies/christopher-l-williams/biography
 |title        = NASA Astronaut Candidate Christopher L. Williams
 |first        = Kelli
 |last         = Mars
 |date         = 6 Dec 2021	
 |work         = [[NASA]]
 |access-date  = 7 Dec 2021
 |url-status   = live
}}</ref>

<ref name="nyt_20211206_astronauts">{{cite news
 |url          = https://www.nytimes.com/2021/12/06/science/nasa-astronaut-class.html
 |title        = NASA Introduces Class of 10 New Astronaut Candidates
 |first        = Joey
 |last         = Roulette
 |date         = 6 Dec 2021	
 |work         = [[New York Times]]
 |access-date  = 7 Dec 2021
 |archive-date = 7 Dec 2021
 |archive-url  = https://web.archive.org/web/20211207021412/https://www.nytimes.com/2021/12/06/science/nasa-astronaut-class.html
 |url-status   = live
}}</ref>

}}

{{NASA Astronaut Group 23}}

[[Category:Astronauts]]
[[Category:Stanford University alumni]]