Gamma Response and Energy Losses in the Absolute Fast Neutron Dosimeter

Journal Article · Wed Jul 01 04:00:00 EDT 1959 · Health Physics

DOI:https://doi.org/10.1097/00004032-195901000-00006· OSTI ID:4231376

Wagner, E. B.; Hurst, G. S.

The gamma response and the associated question of the neutron energy lost under the bias needed to discriminate gamma radiation in the fast neutron dosimeter is considered for the cases where the y-ray dose rate is high (> 1 r/ hr). The particular dosimeter considered is the so-called absolute fast neutron dosimeter which is calibrated by means of an internal alpha -source. Basic data are given for effective energics of 100 kve and 200 kve x-rays and Co/sup 60/ gamma -radiation. For very high gamma -ray intensities (from 10 to l00r/hr) a graphical method of treating the pulse height distribution data is suggested. Thus, for example, a dose rate of 1 mrad/-hr of Po--Be neutrons can easily be determined even when the y-dose rate is as high as 100 r/hr. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-022296
• OSTI ID: 4231376
• Journal Information: Health Physics, Journal Name: Health Physics Journal Issue: 1 Vol. 2; ISSN 0017-9078
• Publisher: Health Physics Society
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA PARTICLES
BERYLLIUM
COBALT 60
DOSEMETERS
ENERGY
FAST NEUTRONS
GAMMA DETECTION
INSTRUMENTS
LOSSES
NEUTRON SOURCES
POLONIUM
PULSES
RADIATION DOSES
RADIATION SOURCES
SPECTRA
STANDARDS
X RADIATION