Abstract
Beam emission spectroscopy is widely used as local density fluctuation measurement of fusion plasmas. We have installed a beam emission spectroscopy system in the large helical device (LHD) with radially and poloidally elongated optical configuration to enhance both signal-to-noise ratio and wavenumber sensitivity in radial and poloidal directions. The calculation considering the integral effect of the line of sight showed the radially and poloidally elongated sightlines have increased sensitivity compared with the square shaped bundle design of the same sampling area.
| Original language | English |
|---|---|
| Article number | 11E559 |
| Journal | Review of Scientific Instruments |
| Volume | 87 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 1 2016 |
| Externally published | Yes |
Fingerprint
All Science Journal Classification (ASJC) codes
- Instrumentation
Cite this
Beam emission spectroscopy with radially and poloidally elongated optical sightlines. / Ono, M.; Ida, K.; Kobayashi, T.; Yoshinuma, M.; Nakamura, Y.; Kisaki, M.; Nakano, H.; Moon, C.
In: Review of Scientific Instruments, Vol. 87, No. 11, 11E559, 01.11.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Beam emission spectroscopy with radially and poloidally elongated optical sightlines
AU - Ono, M.
AU - Ida, K.
AU - Kobayashi, T.
AU - Yoshinuma, M.
AU - Nakamura, Y.
AU - Kisaki, M.
AU - Nakano, H.
AU - Moon, C.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Beam emission spectroscopy is widely used as local density fluctuation measurement of fusion plasmas. We have installed a beam emission spectroscopy system in the large helical device (LHD) with radially and poloidally elongated optical configuration to enhance both signal-to-noise ratio and wavenumber sensitivity in radial and poloidal directions. The calculation considering the integral effect of the line of sight showed the radially and poloidally elongated sightlines have increased sensitivity compared with the square shaped bundle design of the same sampling area.
AB - Beam emission spectroscopy is widely used as local density fluctuation measurement of fusion plasmas. We have installed a beam emission spectroscopy system in the large helical device (LHD) with radially and poloidally elongated optical configuration to enhance both signal-to-noise ratio and wavenumber sensitivity in radial and poloidal directions. The calculation considering the integral effect of the line of sight showed the radially and poloidally elongated sightlines have increased sensitivity compared with the square shaped bundle design of the same sampling area.
UR - http://www.scopus.com/inward/record.url?scp=84992669712&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84992669712&partnerID=8YFLogxK
U2 - 10.1063/1.4963311
DO - 10.1063/1.4963311
M3 - Article
AN - SCOPUS:84992669712
VL - 87
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
SN - 0034-6748
IS - 11
M1 - 11E559
ER -