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N-17, A Delayed Neutron Emitter
The decay scheme of a 4.2 second neutron emitter has been investigated in detail. Chemical and physical evidence shows that it is N{sup 17}, which emits beta rays to a broad excited state of O{sup 17}, which then breaks up into a neutron plus O{sup 16}. The energy spectrum of the neutrons is determined by measuring the energies of the O{sup 16} recoils in a proportional counter. The neutrons have a most probable energy of 0.9 Mev, a 'half width' of less than .5 Mev, and an upper limit of about 2 Mev. {beta}-recoil coincidences are observed, as predicted by the Bohr-Wheeler theory, and the {beta}-ray energy is measured by absorption. The beta rays in coincidence with neutrons have an upper limit of 3.7 {+-} 0.2 Mev. Beta-rays directly to the ground stat of O{sup 17} are not observed because of high background effects, but should have an energy of 8.7 Mev. Some evidence is presented to show that energy is conserved in the {beta}-n transition through the broad excited state in O{sup 17}.
Date:
November 5, 1948
Creator:
Alvarez, L. W.
Object Type:
Report
System:
The UNT Digital Library
The El Reno Daily Tribune (El Reno, Okla.), Vol. 50, No. 213, Ed. 1 Wednesday, November 5, 1941
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 5, 1941
Creator:
Dyer, Ray J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The El Reno Daily Tribune (El Reno, Okla.), Vol. 54, No. 209, Ed. 1 Monday, November 5, 1945
Daily newspaper from El Reno, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 5, 1945
Creator:
Dyer, Ray J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Denison Press (Denison, Tex.), Vol. 15, No. 20, Ed. 1 Friday, November 5, 1943
Weekly newspaper from Denison, Texas that includes local, state and national news along with advertising.
Date:
November 5, 1943
Creator:
Anderson, LeRoy
Object Type:
Newspaper
System:
The Portal to Texas History
The Denison Press (Denison, Tex.), Vol. 7, No. 114, Ed. 1 Tuesday, November 5, 1940
Daily newspaper from Denison, Texas that includes local, state and national news along with advertising.
Date:
November 5, 1940
Creator:
Anderson, LeRoy
Object Type:
Newspaper
System:
The Portal to Texas History
The Denison Press (Denison, Tex.), Vol. 20, No. 19, Ed. 1 Friday, November 5, 1948
Weekly newspaper from Denison, Texas that includes local, state and national news along with advertising.
Date:
November 5, 1948
Creator:
Anderson, LeRoy M.
Object Type:
Newspaper
System:
The Portal to Texas History
The Denison Press (Denison, Tex.), Vol. 8, No. 108, Ed. 1 Wednesday, November 5, 1941
Daily newspaper from Denison, Texas that includes local, state and national news along with advertising.
Date:
November 5, 1941
Creator:
Anderson, LeRoy
Object Type:
Newspaper
System:
The Portal to Texas History
The Shamrock Texan (Shamrock, Tex.), Vol. 39, No. 26, Ed. 1 Thursday, November 5, 1942
Weekly newspaper from Shamrock, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1942
Creator:
Montgomery, Arval
Object Type:
Newspaper
System:
The Portal to Texas History
Borger Daily Herald (Borger, Tex.), Vol. 19, No. 297, Ed. 1 Monday, November 5, 1945
Daily newspaper from Borger, Texas that includes local, state and national news along with extensive advertising.
Date:
November 5, 1945
Creator:
Phillips, J. C.
Object Type:
Newspaper
System:
The Portal to Texas History
The Deport Times (Deport, Tex.), Vol. 34, No. 39, Ed. 1 Thursday, November 5, 1942
Weekly newspaper from Deport, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1942
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Bogata News (Bogata, Tex.), Vol. 38, No. 2, Ed. 1 Friday, November 5, 1948
Weekly newspaper from Bogata, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1948
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Panola Watchman (Carthage, Tex.), Vol. 69, No. 49, Ed. 1 Thursday, November 5, 1942
Weekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1942
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Comanche Chief (Comanche, Tex.), Vol. 71, No. 15, Ed. 1 Friday, November 5, 1943
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1943
Creator:
Wilkerson, J. C.
Object Type:
Newspaper
System:
The Portal to Texas History
The Panola Watchman (Carthage, Tex.), Vol. 69, No. 49, Ed. 1 Thursday, November 5, 1942
Weekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1942
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The McGregor Mirror and Herald-Observer (McGregor, Tex.), Vol. 60, No. 24, Ed. 1 Friday, November 5, 1948
Weekly newspaper from McGregor, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1948
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Harper Herald (Harper, Tex.), Vol. 28, No. 45, Ed. 1 Friday, November 5, 1943
Weekly newspaper from Harper, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1943
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Brenham Banner-Press (Brenham, Tex.), Vol. 78, No. 219, Ed. 1 Friday, November 5, 1943
Daily newspaper from Brenham, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1943
Creator:
Robertson, Ruby
Object Type:
Newspaper
System:
The Portal to Texas History
Borger Daily Herald (Borger, Tex.), Vol. 14, No. 298, Ed. 1 Tuesday, November 5, 1940
Daily newspaper from Borger, Texas that includes local, state and national news along with extensive advertising.
Date:
November 5, 1940
Creator:
Phillips, J. C.
Object Type:
Newspaper
System:
The Portal to Texas History
The Caldwell News and The Burleson County Ledger (Caldwell, Tex.), Vol. 62, No. 15, Ed. 1 Friday, November 5, 1948
Weekly newspaper from Caldwell, Texas that includes local, state and national news along with extensive advertising.
Date:
November 5, 1948
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Caldwell News and The Burleson County Ledger (Caldwell, Tex.), Vol. 57, No. 14, Ed. 1 Friday, November 5, 1943
Weekly newspaper from Caldwell, Texas that includes local, state and national news along with extensive advertising.
Date:
November 5, 1943
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Sweetwater Reporter (Sweetwater, Tex.), Vol. 47, No. 255, Ed. 1 Sunday, November 5, 1944
Daily newspaper from Sweetwater, Texas that includes local, state and national news along with advertising.
Date:
November 5, 1944
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Borger-News Herald (Borger, Tex.), Vol. 20, No. 296, Ed. 1 Tuesday, November 5, 1946
Daily newspaper from Borger, Texas that includes local, state and national news along with extensive advertising.
Date:
November 5, 1946
Creator:
Phillips, J. C.
Object Type:
Newspaper
System:
The Portal to Texas History
The Mexia Weekly Herald (Mexia, Tex.), Vol. 65, No. 46, Ed. 1 Friday, November 5, 1943
Weekly newspaper from Mexia, Texas that includes local, state, and national news along with advertising.
Date:
November 5, 1943
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Bastrop Advertiser (Bastrop, Tex.), Vol. 89, No. 33, Ed. 1 Thursday, November 5, 1942
Weekly newspaper from Bastrop, Texas that includes local, state and national news along with extensive advertising.
Date:
November 5, 1942
Creator:
Standifer, Amy S.
Object Type:
Newspaper
System:
The Portal to Texas History