Shielding of radiation fields generated by {sup 252}Cf in a concrete maze. Part 1: Experiment

Conference · Sun Feb 01 04:00:00 EST 1998

OSTI ID:666120

Ipe, N E ^[1]; McCall, R C ^[2]; Jenkins, T M ^[3]; Benson, E ^[4]

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1. Stanford Univ., CA (US). Stanford Linear Accelerator Center
2. McCall Associates, Woodside, CA (US)
3. Jenkins (T.M.), Palo Alto, CA (US)
4. ICF Kaiser, Richland, WA (US)

A concrete room with a single-legged maze was constructed in order to simulate a medical accelerator room. Gamma and neutron measurements were performed along the maze with (a) a {sup 252}Cf source and (b) a tungsten-moderated {sup 252}Cf source placed inside the room. The measurements were repeated after placing an inner borated polyethylene door of varying thickness (2.54--10.16 cm) at 2 different locations. Measurements were also performed after lining the inside of the maze with different neutron moderating materials. The following results are reported: (1) the variation and contributions of individual components of the radiation fields as a function of distance along the maze, (2) the attenuation of neutron dose equivalent and reduction of capture gamma rays as a function of borated polyethylene (BPE) inner door thickness and location of the inner door; and (3) the effect of lining the maze corner with different neutron moderating materials.

• Research Organization: Stanford Univ., Stanford Linear Accelerator Center, CA (US)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 666120
• Report Number(s): SLAC-PUB--7695; CONF-980403--; ON: DE98059164
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
60 APPLIED LIFE SCIENCES
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
ATTENUATION
CONCRETES
DOORS
DOSE EQUIVALENTS
LINERS
NEUTRONS
POLYETHYLENES
RADIATION PROTECTION
RADIATIONS
SHIELDING
THICKNESS