Abstract
The efficiency of positron production by a 1.2-GeV electron beam incident on a tungsten single crystal oriented in an axially channeling condition has been experimentally studied. Positron yields from a 1.2-mm-thick crystal have been measured to be ∼2.5-3.0 times larger than those from amorphous targets with the same thickness. A simple model simulation of the positron production process shows that coherent bremsstrahlung, as well as channeling radiation, contributes to the enhancement of the positron yields.
| Original language | English |
|---|---|
| Pages (from-to) | 1437-1440 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 80 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 16 Feb 1998 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Positron production in tungsten crystals by 1.2-GeV channeling electrons. / Yoshida, K.; Goto, K.; Isshiki, T.; Endo, I.; Kondo, T.; Matsukado, K.; Takahashi, T.; Takashima, Y.; Potylitsin, A.; Amosov, C. Y.U.; Kalinin, B.; Naumenko, G.; Verzilov, V.; Vnukov, I.; Okuno, H.; Nakayama, K.
In: Physical Review Letters, Vol. 80, No. 7, 16.02.1998, p. 1437-1440.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Positron production in tungsten crystals by 1.2-GeV channeling electrons
AU - Yoshida, K.
AU - Goto, K.
AU - Isshiki, T.
AU - Endo, I.
AU - Kondo, T.
AU - Matsukado, K.
AU - Takahashi, T.
AU - Takashima, Y.
AU - Potylitsin, A.
AU - Amosov, C. Y.U.
AU - Kalinin, B.
AU - Naumenko, G.
AU - Verzilov, V.
AU - Vnukov, I.
AU - Okuno, H.
AU - Nakayama, K.
PY - 1998/2/16
Y1 - 1998/2/16
N2 - The efficiency of positron production by a 1.2-GeV electron beam incident on a tungsten single crystal oriented in an axially channeling condition has been experimentally studied. Positron yields from a 1.2-mm-thick crystal have been measured to be ∼2.5-3.0 times larger than those from amorphous targets with the same thickness. A simple model simulation of the positron production process shows that coherent bremsstrahlung, as well as channeling radiation, contributes to the enhancement of the positron yields.
AB - The efficiency of positron production by a 1.2-GeV electron beam incident on a tungsten single crystal oriented in an axially channeling condition has been experimentally studied. Positron yields from a 1.2-mm-thick crystal have been measured to be ∼2.5-3.0 times larger than those from amorphous targets with the same thickness. A simple model simulation of the positron production process shows that coherent bremsstrahlung, as well as channeling radiation, contributes to the enhancement of the positron yields.
UR - http://www.scopus.com/inward/record.url?scp=0001420085&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001420085&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.80.1437
DO - 10.1103/PhysRevLett.80.1437
M3 - Article
AN - SCOPUS:0001420085
VL - 80
SP - 1437
EP - 1440
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 7
ER -