Influence of contact geometry on NTD sensor performance

Vatsa, V.; Reza, A.; Pillay, R. G.; Shrivastava, A.; Ramakrishnan, S.; Mallikarjunachary, S.; Pose, M. S.; Mazumdar, A.; Nanal, V.

DSpace Home
→
Research Publications
→
Year-2021
→
View Item

dc.contributor.author	Vatsa, V.
dc.contributor.author	Reza, A.
dc.contributor.author	Mazumdar, A.
dc.contributor.author	Nanal, V.
dc.contributor.author	Pillay, R. G.
dc.contributor.author	Shrivastava, A.
dc.contributor.author	Ramakrishnan, S.
dc.contributor.author	Mallikarjunachary, S.
dc.contributor.author	Pose, M. S.
dc.date.accessioned	2021-11-27T11:28:21Z
dc.date.available	2021-11-27T11:28:21Z
dc.date.issued	2021-11-27
dc.identifier.uri	http://localhost:8080/xmlui/handle/123456789/3255
dc.description.abstract	A cryogenic bolometer with Neutron Transmutation Doped Ge as mK thermometer is being developed to study neutrinoless double beta decay (NDBD) in 124Sn. The performance and sensitivity of the sensor strongly depends on the irradiation as well as fabrication (etching, annealing, contact deposition) process. The role of contact fabrication on the sensor performance is presented here. The performace of NTD Ge sensors with wrap-around contact and face-type contacts is compared at T < 100 mK. It is observed that NTD Ge sensors with face-type contacts show Mott behaviour upto lower temperature ~35 mK as compared to that for sensors with wraparound contacts. Further, detailed noise measurements on several indigeously developed NTD Ge sensors have been carried out in temperature range of 20-70 mK to understand its impact on bolometer resolution and have been described in following section.	en_US
dc.language.iso	en_US	en_US
dc.subject	NTD Ge sensors	en_US
dc.subject	mK thermometry	en_US
dc.title	Influence of contact geometry on NTD sensor performance	en_US
dc.type	Article	en_US