Study of the effect of external noise pickups on the performance of a cryogenic bolometer

Reza, A.; Ramakrishnan, S.; Mallikarjunachary, S.; Pillay, R.G.; Krishnamoorthy, H.; Gupta, G.; Garai, A.; Mazumdar, A.; Pose, M.S.; Nanal, V.

DSpace Home
→
Research Publications
→
Year-2019
→
View Item

dc.contributor.author	Garai, A.
dc.contributor.author	Reza, A.
dc.contributor.author	Mazumdar, A.
dc.contributor.author	Krishnamoorthy, H.
dc.contributor.author	Gupta, G.
dc.contributor.author	Pose, M.S.
dc.contributor.author	Mallikarjunachary, S.
dc.contributor.author	Nanal, V.
dc.contributor.author	Pillay, R.G.
dc.contributor.author	Ramakrishnan, S.
dc.date.accessioned	2019-12-11T18:15:55Z
dc.date.available	2019-12-11T18:15:55Z
dc.date.issued	2019-12-11
dc.identifier.uri	http://localhost:8080/xmlui/handle/123456789/1429
dc.description.abstract	This paper reports the detailed noise characterization, investigation of various noise sources, and its mitigation to improve the performance of a cryogenic bolometer detector for the TIN.TIN experiment. The noise spectrum has been measured for a sapphire bolometer test setup with an indigenously developed neutron transmutation doped Ge sensor in the cryogen free dilution refrigerator system at Mumbai. The effect of external noise, arising either from ground loops in the system or from the diagnostic and control electronics of the cryostat, on the performance of the bolometer is assessed. A systematic comparison of the influence of different noise pickups on the bolometer resolution is also presented. The best-achieved resolution (σE) at 15 mK is ∼15 keV for heater pulses and appears to be mainly limited by the noise due to the pulse tube cryocooler.	en_US
dc.language.iso	en_US	en_US
dc.title	Study of the effect of external noise pickups on the performance of a cryogenic bolometer	en_US
dc.type	Article	en_US