Dewars and Cryostats

HPGe detector cooling

Liquid-nitrogen cooling for HPGe detectors, with cryostats and dewars in a range of configurations and sizes.

Cooling technology
Liquid nitrogen (LN₂)1
Cryostat configurations
Vertical and horizontal dipstick, portable (all-position or multi-orientation Gamma Gage), down-looking, side-looking and J-type, depending on detector configuration2
Dewar capacity
Gamma Gage: 1.2/3/5 L; MOD multi-orientation: 3/7 L; side-looking and down-looking: 7.5/13/30 L; dipstick cryostats: 30 L (DWR-30); shallow-hole probe: 0.7 L2
PopTop
Removable capsule with separate vacuum; compatible cryostat required2
Datasheet

Specifications checked against the manufacturer’s documents on 2026-10-16

Manufacturer’s product page (opens in a new tab)

Overview

Key features

  • Supports multiple detector types and measurement setups.
  • Select a cryostat and dewar for the detector configuration.
  • Complements ORTEC mechanical cooling and Möbius systems.

Specifications

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

Cooling technologyLiquid nitrogen (LN₂)1
Cryostat configurationsVertical and horizontal dipstick, portable (all-position or multi-orientation Gamma Gage), down-looking, side-looking and J-type, depending on detector configuration2
Dewar capacityGamma Gage: 1.2/3/5 L; MOD multi-orientation: 3/7 L; side-looking and down-looking: 7.5/13/30 L; dipstick cryostats: 30 L (DWR-30); shallow-hole probe: 0.7 L2
PopTopRemovable capsule with separate vacuum; compatible cryostat required2
StreamlineCapsule and cryostat share vacuum and are ordered together2
DimensioningCryostat diameter matched to detector endcap2
Low backgroundLB/XLB options for compatible cryostat models2

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

Models

43 models in the series. Filter or scroll the table to compare.

43 / 43
ModelCryostat type3Vacuum arrangementOrdering3Endcap configurations in GEM table3Dewar choices in configuration guide3Dewar3Background configurations3Detector option3Matching endcap4Adapter for DWR-30 / DWR-30-OP3Detector configuration2Measurement geometryDewar capacity3Endcap3Handle3Tripod mounting3Detector familiesDewar dimension Y (reference)2Dewar dimension Z (reference)2Dewar dimension Q (reference)2Compatible dewars3Dipstick diameter2Dewar typeDewar capacity in ordering table3Manufacturer cryostat/dewar selection3Detector connector2Intended configuration2Operating orientation5Approximate hold time, stated reference configuration5DWR-S/F compatibility5Reference dimension Y in drawing2Reference dimension Z in drawing2Dimensional status2Included collar3Port2Function5MOD compatibility5Detector configurations5Dewar types5Dewar selections5Hold times, reference configuration5Storage/filling with DWR-S/F5Manual filling5Weight5
CFG-GGGamma GageDetector capsule and cryostat share a vacuum2May only be purchased together with a detector70, 76, 83, 95 or 108 mm; matching suffix requiredDWR-1.2G / DWR-3.0G / DWR-5.0G / DWR-MOD-3L / DWR-MOD-7L / DWR-0.7-SHP-GRequired and selected separately; not included with cryostat modelLB–––––––––––––––––––––––––––––––––––––
CFG-HJJ-type with remote preamplifierDetector capsule and cryostat share a vacuum2May only be purchased together with a detector70, 76, 83, 95 or 108 mm; matching suffix requiredDWR-7.5B / DWR-13B / DWR-30B / MOBIUS-BRequired and selected separately; not included with cryostat modelLBOnly for detectors with the -HJ option––––––––––––––––––––––––––––––––––––
CFG-LP-GG-70Gamma GageDetector capsule and cryostat share a vacuum4May only be purchased together with a detector–DWR-1.2G / DWR-3.0G / DWR-5.0G / DWR-MOD-3L / DWR-MOD-7L / DWR-0.7-SHP-GRequired and selected separately; not included with cryostat model––70 mm; the cryostat diameter must match the -70 detector endcap–––––––––––––––––––––––––––––––––––
CFG-LP-SD-70Down-lookingDetector capsule and cryostat share a vacuum4May only be purchased together with a detector–DWR-7.5D / DWR-13D / DWR-30DRequired and selected separately; not included with cryostat model––70 mm; the cryostat diameter must match the -70 detector endcap–––––––––––––––––––––––––––––––––––
CFG-LP-SH-70Horizontal dipstick cryostatDetector capsule and cryostat share a vacuum4May only be purchased together with a detector–DWR-30 / DWR-30-OP / MOBIUS-STRequired and selected separately; not included with cryostat model––70 mm; the cryostat diameter must match the -70 detector endcapCFG-ADAPTOR included: 1.25 to 1.5 inches––––––––––––––––––––––––––––––––––
CFG-LP-SJ-70J-typeDetector capsule and cryostat share a vacuum4May only be purchased together with a detector–DWR-7.5B / DWR-13B / DWR-30B / MOBIUS-BRequired and selected separately; not included with cryostat model––70 mm; the cryostat diameter must match the -70 detector endcap–––––––––––––––––––––––––––––––––––
CFG-LP-SL-70Side-lookingDetector capsule and cryostat share a vacuum4May only be purchased together with a detector–DWR-7.5B / DWR-13B / DWR-30B / MOBIUS-BRequired and selected separately; not included with cryostat model––70 mm; the cryostat diameter must match the -70 detector endcap–––––––––––––––––––––––––––––––––––
CFG-LP-SV-70Vertical dipstick cryostatDetector capsule and cryostat share a vacuum4May only be purchased together with a detector–DWR-30 / DWR-30-OP / MOBIUS-STRequired and selected separately; not included with cryostat model––70 mm; the cryostat diameter must match the -70 detector endcapCFG-ADAPTOR included: 1.25 to 1.5 inches––––––––––––––––––––––––––––––––––
CFG-MG4-1.2GGamma Gage cryostat with pistol grip–––––––––PopTop; detector capsule has its own vacuumPortable Gamma Gage21.2 L; dewar includedFor endcaps of 83 mm diameter or smallerPistol gripMounting holes to fit the M-1-T1 tripod; the tripod is a separate accessory (M-1-T1 Variable Length Tripod)GEM, GMX in compatible PopTop configuration3–––––––––––––––––––––––––––
CFG-PD4-7.5Downlooking cryostat–––––––––PopTop; detector capsule has its own vacuumDownlooking37.5 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3224 ± 13 mm; see drawing452 ± 5 mm; see drawing–––––––––––––––––––––––––
CFG-PD4-13Downlooking cryostat–––––––––PopTop; detector capsule has its own vacuumDownlooking313 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3307 ± 13 mm; see drawing429 ± 5 mm; see drawing–––––––––––––––––––––––––
CFG-PD4-30Downlooking cryostat–––––––––PopTop; detector capsule has its own vacuumDownlooking330 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3442 ± 13 mm; see drawing610 ± 5 mm; see drawing–––––––––––––––––––––––––
CFG-PG4-1.2Gamma Gage cryostat–––––––––PopTop; detector capsule has its own vacuumGamma Gage with all-attitude (all-orientation) dewar; can be used in any orientation51.2 L; dewar includedFor endcaps of 83 mm diameter or smaller––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3157 ± 13 mm; see drawing229 ± 5 mm; see drawing229 ± 13 mm; see drawing––––––––––––––––––––––––
CFG-PG4-3Gamma Gage cryostat–––––––––PopTop; detector capsule has its own vacuumGamma Gage with all-attitude (all-orientation) dewar; can be used in any orientation53 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3229 ± 13 mm; see drawing267 ± 5 mm; see drawing302 ± 13 mm; see drawing––––––––––––––––––––––––
CFG-PG4-5Gamma Gage cryostat–––––––––PopTop; detector capsule has its own vacuumGamma Gage with all-attitude (all-orientation) dewar; can be used in any orientation55 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3229 ± 13 mm; see drawing419 ± 5 mm; see drawing302 ± 13 mm; see drawing––––––––––––––––––––––––
CFG-PH4Horizontal dipstick cryostat––––Not included; selected separately––––PopTop; detector capsule has its own vacuumHorizontal3––––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3–––DWR-30, DWR-30-OP or MOBIUS-PT38 mm (1.5 in), drawing dimension––––––––––––––––––––––
CFG-PMOD4-3Gamma Gage cryostat with MOD dewar–––––––––PopTop; detector capsule has its own vacuumMulti-orientation (MOD) dewar: vertically up, down or horizontal53 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3157 ± 13 mm; see drawing292 ± 5 mm; see drawing229 ± 13 mm; see drawing––––––––––––––––––––––––
CFG-PMOD4-7Gamma Gage cryostat with MOD dewar–––––––––PopTop; detector capsule has its own vacuumMulti-orientation (MOD) dewar: vertically up, down or horizontal57 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3229 ± 13 mm; see drawing320 ± 5 mm; see drawing302 ± 13 mm; see drawing––––––––––––––––––––––––
CFG-PS4-7.5Sidelooking cryostat–––––––––PopTop; detector capsule has its own vacuumSidelooking37.5 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3224 ± 13 mm; see drawing452 ± 5 mm; see drawing–––––––––––––––––––––––––
CFG-PS4-13Sidelooking cryostat–––––––––PopTop; detector capsule has its own vacuumSidelooking313 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3307 ± 13 mm; see drawing429 ± 5 mm; see drawing–––––––––––––––––––––––––
CFG-PS4-30Sidelooking cryostat–––––––––PopTop; detector capsule has its own vacuumSidelooking330 L; dewar included–––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3442 ± 13 mm; see drawing610 ± 5 mm; see drawing–––––––––––––––––––––––––
CFG-PV4Vertical dipstick cryostat––––Not included; selected separately––––PopTop; detector capsule has its own vacuumVertical3––––GEM, PROFILE, GMX, GLP, SGD planar, SGD GEM in compatible PopTop configuration3–––DWR-30, DWR-30-OP or MOBIUS-PT38 mm (1.5 in), drawing dimension––––––––––––––––––––––
CFG-SDDown-lookingDetector capsule and cryostat share a vacuum2May only be purchased together with a detector70, 76, 83, 95 or 108 mm; matching suffix requiredDWR-7.5D / DWR-13D / DWR-30DRequired and selected separately; not included with cryostat modelLB; XLB for SD/SH/SJ/SL/SV–––––––––––––––––––––––––––––––––––––
CFG-SHHorizontal dipstick cryostatDetector capsule and cryostat share a vacuum2May only be purchased together with a detector70, 76, 83, 95 or 108 mm; matching suffix requiredDWR-30 / DWR-30-OP / MOBIUS-STRequired and selected separately; not included with cryostat modelLB; XLB for SD/SH/SJ/SL/SV––CFG-ADAPTOR included: 1.25 to 1.5 inches––––––––––––––––––––––––––––––––––
CFG-SJJ-typeDetector capsule and cryostat share a vacuum2May only be purchased together with a detector70, 76, 83, 95 or 108 mm; matching suffix requiredDWR-7.5B / DWR-13B / DWR-30B / MOBIUS-BRequired and selected separately; not included with cryostat modelLB; XLB for SD/SH/SJ/SL/SV–––––––––––––––––––––––––––––––––––––
CFG-SLSide-lookingDetector capsule and cryostat share a vacuum2May only be purchased together with a detector70, 76, 83, 95 or 108 mm; matching suffix requiredDWR-7.5B / DWR-13B / DWR-30B / MOBIUS-BRequired and selected separately; not included with cryostat modelLB; XLB for SD/SH/SJ/SL/SV–––––––––––––––––––––––––––––––––––––
CFG-SVVertical dipstick cryostatDetector capsule and cryostat share a vacuum2May only be purchased together with a detector70, 76, 83, 95 or 108 mm; matching suffix requiredDWR-30 / DWR-30-OP / MOBIUS-STRequired and selected separately; not included with cryostat modelLB; XLB for SD/SH/SJ/SL/SV––CFG-ADAPTOR included: 1.25 to 1.5 inches––––––––––––––––––––––––––––––––––
DWR-0.7-SHP-G––Order code DWR-0.7-SHP-G; selected as the dewar for a CFG-GG or CFG-LP-GG-70 Streamline Gamma Gage cryostat–––––––––––––––––––Shallow Hole Probe dewar30.7 LCFG-GG / CFG-LP-GG-70Requires a separate compatible cryostat; detector does not mount directly in the dewarShallow Hole Probe, Streamline–––––––––––––––––
DWR-1.2G––––––––––––––––––––––All-orientation dewar31.2 LCFG-GG / CFG-LP-GG-70Requires a separate compatible cryostat; detector does not mount directly in the dewar–All attitudesApprox. 1 day; standard non-PopTop cryostat with 2.75-inch endcap. PopTop/special configurations may differ.Yes––––––––––––––
DWR-3.0G––––––––––––––––––––––All-orientation dewar33.0 LCFG-GG / CFG-LP-GG-70Requires a separate compatible cryostat; detector does not mount directly in the dewar–All attitudes2 days; standard non-PopTop cryostat with 2.75-inch endcap. PopTop/special configurations may differ.Yes––––––––––––––
DWR-5.0G––––––––––––––––––––––All-orientation dewar35.0 LCFG-GG / CFG-LP-GG-70Requires a separate compatible cryostat; detector does not mount directly in the dewar–All attitudes4 days; standard non-PopTop cryostat with 2.75-inch endcap. PopTop/special configurations may differ.Yes––––––––––––––
DWR-7.5B––––––––––––––––––––––Side-looking dewar37.5 LCFG-HJ / CFG-SJ / CFG-SL; CFG-LP-SJ-70 / CFG-LP-SL-70Requires a separate compatible cryostat; detector does not mount directly in the dewar––––224 ± 13 mm; see drawing452 ± 5 mm; see drawingReference dimensions subject to change; confirm critical installation dimensions with manufacturer–––––––––––
DWR-7.5D––––––––––––––––––––––Down-looking dewar37.5 LCFG-SD / CFG-LP-SD-70Requires a separate compatible cryostat; detector does not mount directly in the dewar––––224 ± 13 mm; see drawing452 ± 5 mm; see drawingReference dimensions subject to change; confirm critical installation dimensions with manufacturer–––––––––––
DWR-13B––––––––––––––––––––––Side-looking dewar313 LCFG-HJ / CFG-SJ / CFG-SL; CFG-LP-SJ-70 / CFG-LP-SL-70Requires a separate compatible cryostat; detector does not mount directly in the dewar––––307 ± 13 mm; see drawing429 ± 5 mm; see drawingReference dimensions subject to change; confirm critical installation dimensions with manufacturer–––––––––––
DWR-13D––––––––––––––––––––––Down-looking dewar313 LCFG-SD / CFG-LP-SD-70Requires a separate compatible cryostat; detector does not mount directly in the dewar––––307 ± 13 mm; see drawing429 ± 5 mm; see drawingReference dimensions subject to change; confirm critical installation dimensions with manufacturer–––––––––––
DWR-30––––––––––––––––––––––Top-port dewar230 LCFG-SV / CFG-SH / CFG-PV4 / CFG-PH4; CFG-LP-SV-70 / CFG-LP-SH-70Requires a separate compatible cryostat; detector does not mount directly in the dewar–––––––For 1.5-inch cryostat diameterTop port–––––––––
DWR-30-OP––––––––––––––––––––––Offset-port dewar330 LCFG-SV / CFG-SH / CFG-PV4 / CFG-PH4; CFG-LP-SV-70 / CFG-LP-SH-70Requires a separate compatible cryostat; detector does not mount directly in the dewar–––––––For 1.5-inch cryostat diameterOffset top port–––––––––
DWR-30B––––––––––––––––––––––Side-looking dewar330 LCFG-HJ / CFG-SJ / CFG-SL; CFG-LP-SJ-70 / CFG-LP-SL-70Requires a separate compatible cryostat; detector does not mount directly in the dewar––––442 ± 13 mm; see drawing610 ± 5 mm; see drawingReference dimensions subject to change; confirm critical installation dimensions with manufacturer–––––––––––
DWR-30D––––––––––––––––––––––Down-looking dewar330 LCFG-SD / CFG-LP-SD-70Requires a separate compatible cryostat; detector does not mount directly in the dewar––––442 ± 13 mm; see drawing610 ± 5 mm; see drawingReference dimensions subject to change; confirm critical installation dimensions with manufacturer–––––––––––
DWR-MOD-3L––––––––––––––––––––––Multi-orientation dewar (MOD)33 LCFG-GG / CFG-LP-GG-70Requires a separate compatible cryostat; detector does not mount directly in the dewar–Vertically up, down or horizontal; not unrestricted rotation2 days; standard non-PopTop cryostat with 2.75-inch endcap. PopTop/special configurations may differ.No––––––––––––––
DWR-MOD-7L––––––––––––––––––––––Multi-orientation dewar (MOD)37 LCFG-GG / CFG-LP-GG-70Requires a separate compatible cryostat; detector does not mount directly in the dewar–Vertically up, down or horizontal; not unrestricted rotation5 days; standard non-PopTop cryostat with 2.75-inch endcap. PopTop/special configurations may differ.No––––––––––––––
DWR-S/F––––––––––––––––––––––Storage/fill dewar3–DWR-xG / CFG-PG4-x––––––––––Storage and filling of a compatible Gamma Gage dewarNot compatible with MOD dewars–––––––
Gamma Gage II––––––––––––––––GEM, GMX, GLP, PROFILE and Safeguards6––––––––––––––––––––PopTop or StreamlineAll-attitude or MOD (multi-orientation); different orientation limitsAll-attitude: 1.2 / 3 / 5 L; MOD: 3 / 7 LApprox. 1/2/4 days (all-attitude, 1.2/3/5 L) and 2/5 days (MOD, 3/7 L); standard non-PopTop cryostat with 2.75-inch endcap; actual times vary.All-attitude: yes; MOD: noBoth types can be filled horizontally; MOD cannot be filled vertically<11 lb (≈ 5 kg) for the 24-hour hold-time version

Documents

Sources

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

  1. 1
    Publisher: ORTEC (AMETEK)Product page Product page Checked 2026-10-16
  2. 2
    Publisher: ORTEC (AMETEK)Datasheet p. 2, 'Configure the Cryostat/Dewar or ICS Model'; pp. 20–22, PopTop/Streamline cryostats and dewars; p. 1, Configuration Guidelines; p. 2 … Checked 2026-10-16
  3. 3
    Publisher: ORTEC (AMETEK)Product catalogue PDF p. 14 'GEM Streamline Cryostats'; PDF p. 14 'GEM Streamline Cryostats' (bullet list); PDF p. 15 'GEM Streamline Dewars'; PDF p. 14 'GEM Streamline Cryostats – LOW-BACKGROUND' … Checked 2026-10-16
  4. 4
    Publisher: ORTEC (AMETEK)Datasheet p. 5 'PopTop and Streamline Dimensional Data'; p. 4 'Streamline Cryostat and Cryostat/Dewar Assemblies'; Product Guide PDF p. 24 (GLP endcap 70 mm nominal) Checked 2026-10-16
  5. 5
    Publisher: ORTEC (AMETEK)Brochure p. 2 'Dewar Type' table; p. 1 'A Tale of Two Dewars'; GEM guide p. 13 groups CFG-PG4 with DWR-x.xG (All-Orientation); p. 1 'A Tale of Two Dewars'; Product Guide PDF p. 14; p. 1 'A Tale of Two Dewars'; p. 2 'Dewar Type' table and footnote 1 … Checked 2026-10-16
  6. 6
    Publisher: ORTEC (AMETEK)Product page product page feature list Checked 2026-10-16
Möbius Recycler
ORTEC

Möbius Recycler

HPGe detector cooling

Weight
28.58 kg empty; 51.26 kg full, excluding cryostat and detector
LN₂ hold time during power loss
Full dewar, typical detector: Streamline about 7–10 days; PopTop about 4–7 days
4 models
Shallow Hole Probe
ORTEC

Shallow Hole Probe

HPGe gamma detector

Detector type
Configured with GEM, GMX, GLP, PROFILE or Safeguards HPGe
Weight
Approximately 12 lb
LN₂ holding time
Approximately 16 hours with 70 mm endcap
1 model
Contact us

Questions about this product?

We help you choose the right configuration, detector and accessories for your measurement task.