Register to reply

What was the principal nuclear reaction of Fermi's nuclear pile

by Villhelm
Tags: fermi, nuclear, pile, principal, reaction
Share this thread:
Villhelm
#1
Feb18-12, 03:11 PM
P: 37
I've known about the basic story of the first nuclear pile since before I can remember, but never found information on what the associated nuclear reaction actually was and was wondering if anyone here knew or could point me in the right direction.
Phys.Org News Partner Physics news on Phys.org
Refocusing research into high-temperature superconductors
Neutron tomography technique reveals phase fractions of crystalline materials in 3-dimensions
Tiny magnets, huge fields: Nanoscale ferromagnetic electrodes create chemical equivalent of solid-state spin valve
mathman
#2
Feb18-12, 03:49 PM
Sci Advisor
P: 6,040
The reactor fuel was Uranium, so I presume the reactions would be the same as any Uranium reactor.
cmb
#3
Feb21-12, 04:55 PM
P: 628
From various sources, etc., as far as I have pieced together the following should address your question (and related factoids) regarding the first reactor pile, CP-1. (I trust I will be corrected if any of these have come from inaccurate sources.)

Principle reaction = Absorption of slow neutrons by U-235 in un-enriched uranium.

Fuel used = 40 tons of un-enriched uranium dioxide pressed into 17,000 'pseudospheres', plus 6 tons of "Spedding’s eggs", uranium metal in cylinders of 2 1/4" OD x 3" long.

Moderator = 4,000 x 6 lbs ultra-pure graphite blocks, drilled with holes to take the above uranium, plus a further 300 tons of graphite in layers.

Control rods = cadmium.

Safety moderator = buckets of boric acid to be poured in from above

Power output = 0.5 W


Register to reply

Related Discussions
Fermi nuclear model Advanced Physics Homework 0
Nuclear Reaction Introductory Physics Homework 2
Q value of 3H(p,n)3He nuclear reaction Advanced Physics Homework 6
Nuclear reaction? Introductory Physics Homework 6
Need help on a nuclear reaction Introductory Physics Homework 2