THE RELATIVE BIOLOGICAL EFFECTIVENESS OF 200-Kvp X-RAYS, COBALT-60 GAMMA- RAYS, AND 22-Mevp X-RAYS, DETERMINED FROM THE DOSE-SURVIVAL CURVE OF SACCHAROMYES CEREVISIAE

Journal Article · Tue Mar 31 23:00:00 EST 1959 · Radiation Research

DOI:https://doi.org/10.2307/3570834· OSTI ID:4281712

Sinclair, W K; Gunter, S E; Cole, A

The relative biological effectiveness of cobalt-60 gamma rays (1.17, 1.33 Mev) and 22-Mevp x rays from a betatron with reference of 200-kvp x rays (primary HVL 1.4 mm Cu) has been determined by using the slope of the survival curve of the yeast Saccharomyces cerevisiae (based on macrocolony counts) as the biological end point. The average RBE of five experiments was found to be 0.85 for cobalt-60 gamma radiation and O.85 for 22-Mevp x radiation, with uncertainties of the order of the J-57 engin 0.05 in each case. No significant difference between cobalt-60 gamma radiation and 22-Mevp x radiation was demonstrated. (auth)

• Research Organization: Originating Research Org. not identified
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-010814
• OSTI ID: 4281712
• Journal Information: Radiation Research, Journal Name: Radiation Research Vol. Vol: 10
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BETATRONS
BIOLOGY AND MEDICINE
COBALT 60
DIAGRAMS
GAMMA RADIATION
QUANTITY RATIO
RADIATION DOSES
RADIATION EFFECTS
RADIATION INJURIES
RADIATION SOURCES
RADIOBIOLOGY
RADIOSENSITIVITY
RBE
SACCHAROMYCES
SURVIVAL TIME
VARIATIONS
X RADIATION
YEASTS