Planck pre-launch status: Design and description of the Low Frequency Instrument

Free Access

Table 10:

Main characteristics and specifications of the LFI cryoharness.
	R EQUIREMENT				D ESIGN S OLUTION
		$I_{\rm max}$ 20 K	$I_{\rm max}$ 300 K	R		Diameter	R	P at FPU
I TEM...............	N	[mA]	[mA]	$\Omega$	Material	[AWG, mm]	$\Omega$	[mW]
HEMT GND...............	11	40	200	<1	Copper	38 (0.1)	0.6	6.32
HEMT Drain...............	44	10	50	<5	Nickel	38 (0.1)	2.2	11.37
HEMT Gate...............	88	100	100	<200	Manganin	40 (0.08)	193.4	1.86
Phase Switch GND...........................	11	4	4	<10	Titanium	32 (0.2)	5.2	1.55
Phase Switch...............	88	1	1	<50	Titanium	38 (0.1)	21.0	5.88
Shield...........................	$\ldots$	$\ldots$	$\ldots$	$\ldots$	Al + Kapton	100 nm	$\ldots$	2.28
Temperature Sensors..	48	40	40	<200	Manganin	40 (0.08)	139.3	0.93
TOTAL....................	290							30.20

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.