© The Institution of Electrical Engineers
An amplifier with noise densities iamp2 and uamp2 has a pulse-energy sensitivity ≈ iampuamp. This limit applies not only to charge pulses in a capacitor, but also to oscillations in a high-Q-factor resonator operated at an arbitrary temperature T if delay-line filtering is used. Q does not need to be larger than 4kT/R0iamp2, where Ro = √(L/C).
References
-
-
1)
-
D.G. Maeder
.
Transmission-line analysis of gravitational pulse detector response functions.
Z. Angew. Math. & Phys.
-
2)
-
E. Kowalski
.
(1970)
, Nuclear electrons.
-
3)
-
D.G. Maeder
.
Can a pulse excitation smaller than kT be detected?.
Electron. Lett.
,
767 -
769
-
4)
-
E.A.U. Faulkner ,
M.J. Buckingham
.
Comment on ‘Can a pulse excitation smaller than kT be detected?’.
Electron. Lett.
,
152 -
153
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19720144
Related content
content/journals/10.1049/el_19720144
pub_keyword,iet_inspecKeyword,pub_concept
6
6