Medical X-ray protection up to two million volts.
Series: National Bureau of Standards handbook -- 41.
Publisher: [U.S. Govt. Print. Off.]
Published: 1949
Place of publication: Washington
Language: eng
Number of pages: 43
Subjects: X-rays -- Safety measures; X-rays -- Therapeutic use
Notes: "To supersede the National Bureau of Standards handbook 20, entitled 'X-ray protection' ... last revised in 1936."