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'''Other types of detectors''' – [[Time projection chamber]]s (TPCs) filled with low pressure gases are being studied for WIMP detection. The [[Directional Recoil Identification From Tracks]] (DRIFT) collaboration is attempting to utilize the predicted directionality of the WIMP signal. DRIFT uses a [[carbon disulfide]] target, that allows WIMP recoils to travel several millimetres, leaving a track of charged particles. This charged track is drifted to an [[MWPC]] readout plane that allows it to be reconstructed in three dimensions and determine the origin direction. DMTPC is a similar experiment with CF<sub>4</sub> gas.
The DAMIC (DArk Matter In CCDs) and SENSEI (Sub Electron Noise Skipper CCD Experimental Instrument) collaborations employ the use of scientific [[Charge-coupled device|Charge Coupled Devices]] (CCDs) to detect light Dark Matter. The CCDs act as both the detector target and the readout instrumentation. WIMP interactions with the bulk of the CCD can induce the creation of electron-hole pairs, which are then collected and readout by the CCDs. In order to decrease the noise and achieve detection of single electrons, the experiments make use of a type of CCD known as the Skipper CCD, which allows for averaging over repeated measurements of the same collected charge.<ref>{{cite journal|last1=DAMIC Collaboration|last2=Aguilar-Arevalo|first2=A.|last3=Amidei|first3=D.|last4=Baxter|first4=D.|last5=Cancelo|first5=G.|last6=Cervantes Vergara|first6=B. A.|last7=Chavarria|first7=A. E.|last8=Darragh-Ford|first8=E.|last9=de Mello Neto|first9=J. R. T.|last10=D’Olivo|first10=J. C.|last11=Estrada|first11=J.|date=2019-10-31|title=Constraints on Light Dark Matter Particles Interacting with Electrons from DAMIC at SNOLAB|url=https://link.aps.org/doi/10.1103/PhysRevLett.123.181802|journal=Physical Review Letters|volume=123|issue=18|pages=181802|doi=10.1103/PhysRevLett.123.181802|pmid=31763884|arxiv=1907.12628|bibcode=2019PhRvL.123r1802A|hdl=10261/213092 |s2cid=198985735}}</ref><ref>{{cite journal|last1=Abramoff|first1=Orr|last2=Barak|first2=Liron|last3=Bloch|first3=Itay M.|last4=Chaplinsky|first4=Luke|last5=Crisler|first5=Michael|last6=Dawa|last7=Drlica-Wagner|first7=Alex|last8=Essig|first8=Rouven|last9=Estrada|first9=Juan|last10=Etzion|first10=Erez|last11=Fernandez|first11=Guillermo|date=2019-04-24|title=SENSEI: Direct-Detection Constraints on Sub-GeV Dark Matter from a Shallow Underground Run Using a Prototype Skipper-CCD|journal=Physical Review Letters|volume=122|issue=16|pages=161801|doi=10.1103/PhysRevLett.122.161801|pmid=31075006|issn=0031-9007|arxiv=1901.10478|bibcode=2019PhRvL.122p1801A|s2cid=119219165}}</ref>
=== Recent limits ===
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